blogs

Strong Drive Chain Manufacturers Introduces The Usage Details Of The Conveyor Chain

2021-11-25

 

Conveyor chain For many people engaged in industrial production, conveyor chain products are commonplace. As an important symbol of automated production, its role is irreplaceable. However, what is helpless is that the product is like a frail Lin Daiyu, who often fails from time to time. Below, Strong Drive Chain Manufacturers introduces the use skills of conveyor chains:

1. In many situations, the most common problem is that the transmission chain is tight and loose. Generally speaking, it is caused by the wear of gears. Due to the deviation of the tooth pitch, coupled with small-batch processing, it is difficult to guarantee the actual effect, including indicators such as diameter and roundness.

2. Once the pitch of the conveyor chain deviates, it can be improved by replacing the conveyor chain. It should be noted that a few more can be changed to achieve the best effect. As a standard part, the probability of this possibility is extremely small.

Through the above introduction,China Motorcycle Chain Exporter hopes that you can simply refer to the content of this article in future use.

---------------------

Usage Details Of Transmission Chain

2021-10-12

Transmission Chain  prevents heat treatment deformation: After rough machining, the gear blank is turned into a precision forging, which is normalized or quenched and tempered to achieve:

(1) Soften steel parts for cutting processing;

(2) Eliminate residual stress;

(3) Refine the grains and improve the structure to improve the mechanical properties of the steel;

(4) Make organizational preparations for the final handling. It should be noted that in the normalizing or quenching and tempering process, the furnace temperature must be maintained uniformly, and the work-position equipment must be used to uniformly heat and cool the workpieces, and it is strictly forbidden to stack them together. For gears that need to be drilled to reduce weight, the drilling sequence should be arranged after heat treatment. The final heat treatment of the gear adopts high-frequency quenching of the tooth surface that makes the parts less deformed; the tooth surface obtained after high-frequency quenching has high strength, hardness, wear resistance and fatigue limit, while the core still maintains sufficient plasticity and toughness. To reduce deformation. Tooth surface induction hardening should adopt lower quenching temperature and shorter heating time, uniform heating and slow cooling.

---------------------------

Industrial Chain Manufacturer Introduces The Method Of Cleaning The Sprocket

2021-8-30

 

Industrial Chain Manufacturer Introduces Industrial Sprocket is a common component in mechanical transmission equipment, and various chains can be seen in many centers of our lives. Industrial chain refers to the chain used for medium and large-sized machinery in industrial manufacturing. Due to the operation intensity and working environment, the industrial chain is easy to causes the operation efficiency to drop due to stains or fine foreign bodies, so the cleaning industry is quite critical. Below, the cleaning skills of Industrial Sprocket.

1. Use special chain cleaning agents, which are generally imported products, with good cleaning effects and smooth effects, and stop according to the application clarification request.

2. Use metal powder, find a bigger container, take a spoonful and rinse it with boiling water, take off the industrial chain, and put it in water to clean it with a harder brush. This method can easily clean the oil stain on the chain, and generally does not clean the butter in the inner ring, which is not irritating and does not hurt hands.

3. Using hot soapy water and hand sanitizer, taking an abandoned toothbrush or a slightly harder brush, you can scrub the industrial chain directly with water. The cleaning effect is not very good, and the industrial chain needs to be dried after cleaning, otherwise, it will rust.


Through the above introduction, Leaf Chain Manufacturer hopes that you can simply refer to the content of this article in future use.

-------------------------

 

Industrial Sprocket Factory Introduces The Skills Of Storage Chain

2021-8-16

Stainless steel chain is a kind of equipment commonly used in industrial transportation. It is a flexible part composed of adjacent identical or opposite identical parts. It has the advantages of multi-tooth load-bearing, safe and reliable, large middle distance range, and low processing and installation accuracy requirements. Because it is widely used in industrial production, its storage cannot be discarded at will, but a suitable environment must be selected for storage. There are also strict requirements on the choice of storage location for stainless steel chains. Next, Industrial Sprocket Factory introduces how to store stainless steel chains?

A storage environment that is too humid will cause oxidation of the stainless steel chain, which is mainly reflected in the color of the syringe mold. If stored in a humid environment for a long time, the stainless steel chain may also rust, which will have a certain impact on product quality.

When storing stainless steel chains, another important consideration is to keep away from high temperatures or strong light. In such an environment, the chain will undergo thermal expansion and cold shrinkage, and the increase in the volume of the chain for a long time will cause the change of the chain size, which will affect the use of the product. In addition, in a long-term high temperature environment, the performance of the chain material will change, which will also have a great impact on the later use of the chain material, which may cause tooth loss.

If the stainless steel chain undergoes chemical corrosion in the storage environment, it is fatal to the industrial chain. Long-term corrosion will cause problems in the use of the stainless steel chain and affect the physical and mental health of the operators. Therefore, it is recommended that you buy stainless steel When chaining, first check the product to avoid buying substandard products.

Through the above introduction, Conveyor Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

---------------------

Industrial Sprocket Manufacturer Introduces The Oiling Strategy Of Mechanical Chains

2021-8-9

 

Industrial Sprocket Manufacturer introduces how to properly lubricate mechanical chains?

1. Only oil the chain, do not oil any other cars, remember! The extremely erroneous act of destroying the car by spraying oil into the hub and the bottom bracket, to paraphrase a fashionable phrase, the above actions are all tragic deaths in the world.
 
2 Do not spray on the tires, do not get the wd40 and spray it indiscriminately, use a rag to stop the chain under the chain, and apply oil to the chain.
 
3 High-end oiling situation: "Dry-to-wet chain". Good oiling is to make people invisible, not greasy. You only need to have oil between the movable joints of the chain (normally there are 110 joints, haha), and no oil should be present in other places. On the outside, the oil that is exposed is very easy to stick to the dust and sand. Remember, it is best to apply the oil and wipe it with a rag. That's it.
 
4 Things like WD40 are light mineral oils, which can only be used for low-load lubrication. They are very suitable for cleaning chains. Assuming that no chain oil is applied after cleaning, the chain will appear dry and unsatisfactory after WD40 is used. , And the lack of oil film strength, the wear will be faster (of course, you can also spray once every time you ride once or twice)
 
5 Some new riders love to use it, but professional books often say that it is not suitable for bicycle chains. This oil is not suitable for high-speed work, and it is very easy to get dust and wear the chain, and it is easy to throw out.
 
6 Engine oil and other mechanical oils. This type of oil has very good mobility (good lubricity), but it can be easily thrown everywhere, and it is easy to stain. It is better not to
 
7 Radiation butter, this thing lacks in soaking performance, can not supply the lubrication in the shaft of the chain, and it is too easy to get dust.


Through the above introduction, Conveyor Chain Manufacturer hopes that you can simply refer to the content of this article in future use.----------------------------

China Industrial Sprocket Company Introduced The Requirements Of Chain Lubrication

2021-7-26

 

China Industrial Sprocket Company introduced the conditions of chain lubrication.

A: Excellent permeability
For chains, it is easier to lubricate the rollers and sprockets, but it is more difficult to lubricate the chain shafts and bushings. Because the gap between the shaft and the sleeve is very small, and it is completely open environmental conditions. If the lubricating oil does not have good permeability, it cannot penetrate into the shaft and sleeve, and cannot lubricate the shaft and sleeve.

B: Good adhesion
When the chain is running, the lubricating oil will be thrown off due to the effect of high speed. At low speeds, the lubricating oil will drip due to gravity. All these will not only pollute the environment and products, but also cause a lot of waste. Therefore, the lubricating oil is required to have good adhesion and be able to adhere firmly to the friction surface without falling off due to various effects.

C: Has excellent lubricating properties
One of the functions of lubricating oil is lubrication, but when the chain is subjected to different effects during operation, the lubricating performance of the lubricating oil is required to be higher, especially those chains under heavy load and impact conditions, which are resistant to extreme pressure wear. The requirements are even higher, so the general chain lubricants are very aware of this requirement.

D: Excellent oxidation stability.
Usually chain drives work in an exposed environment, so chain lubricants.
E: Very small evaporation loss rate.
F: Has a good ability to resist external effects.
G: It has the characteristic of being contaminated.
H: There is a small tendency to deposit carbon.


Through the above introduction,China Conveyor Chains Company hopes that you can simply refer to the content of this article in future use.

----------------------------

China Industrial Sprocket Company Introduces The Use Of Chain Knowledge

2021-7-12

 

China Industrial Sprocket Company introduces the control requirements of chain system management:

1. Realize the collective bidding for the management of the network belt management and control system, collect and display the basic parameters of mechanical equipment and system management and operation in a timely manner, and perform maintenance on the basic parameters.

2. Before the chain is running, the system management has a fifteen-second reminder time. If everything is normal for every mechanical equipment and the operation specifications are taken into account, the chain is running normally; if the specifications do not conform to the specifications, it will be terminated immediately and the problem will be displayed.

3. Each machine is equipped with machine equipment operation and termination function keys, which is convenient for sudden incidents, and the chain can be terminated at any time during on-site work, which can reduce the disaster caused by the incident.

4. The direction of machinery and equipment deviates for maintenance, pull line emergency stop switch, etc., this signal is communicated with the manipulator, and the chain system management is timely repaired and maintained.

5. The basic parameters of the conveying equipment and the system management status are displayed on the display in time. If there are general problems, the system management is only a light-controlled switch prompt; if an accident occurs, such as broken belts, misaligned directions, etc., it is a worrying situation. The machine and its upper, middle, and lower chains are terminated immediately, and the upper, middle, and upper chains are terminated in sequence.

Through the above introduction,China Conveyor Chains Company hopes that you can simply refer to the content of this article in future use.

------------------------------

China Industrial Sprocket Company Introduces How To Control The Tightness Of The Chain

2021-6-7

China Industrial Sprocket Company introduced that the tightness of the chain should be appropriate. Too tight increases power consumption, bearings are easy to wear, and too loose chains are easy to jump and fall off. The tightness of the chain is: lifted or pressed down from the middle of the chain, the center distance between the two sprockets is about 2%-3%. The new chain is too long or stretched after use, and it is difficult to adjust. You can remove the chain link depending on the situation, but it must be an even number. The chain link should pass through the back of the chain, the lock piece should be inserted outside, and the opening of the lock piece should face the opposite direction of rotation.

After the sprocket is severely worn, the new sprocket and the new chain should be replaced at the same time to ensure good meshing, but the new chain or the new sprocket should not be replaced alone. Otherwise it will cause poor meshing and accelerate the wear of the new chain or new sprocket. When the tooth surface of the sprocket wears to a certain degree, it should be turned over in time (refers to the sprocket used with adjustable surface to extend the use time.)

The old chain cannot be mixed with part of the new chain, otherwise it is easy to produce an impact in the transmission and break the chain. The chain should be filled with lubricating oil in time during work, and the lubricating oil must enter the matching gap between the roller and the inner sleeve to improve working conditions and reduce wear.

Precautions for the sprocket: The sprocket should be installed on the shaft without skew and swing, and the end faces of the two sprocket should be in the same plane in the same transmission assembly. In addition, when the center distance of the sprocket is less than 0.5 meters, the allowable deviation is 1 mm; when the center distance of the sprocket is more than 0.5 meters, the allowable deviation is 2 mm, but there can be friction on the side of the sprocket. If the two wheels move too much It is easy to cause chain breakage and accelerated wear. When replacing the sprocket, you must pay attention to check and adjust the offset.

Chain manufacturing capacity is the decisive factor for chain manufacturing, and the center of chain manufacturing strength is the degree of chain manufacturing technology. The degree of chain manufacturing technology largely depends on the degree of professional chain consumption. The strength of the process equipment has a direct impact on the consumption efficiency of the chain manufacturing company, and the quality of the products and the economic benefits. In recent years, my country's chain industry has paid great attention to the investment of hardware equipment. Many chain companies have invested a lot of capital, manpower and material resources to implement the technical transformation projects of the chain-use equipment mechatronics, and have successfully developed a number of high-strength projects. The chain manufactures exclusive use of equipment and put it into use. Its professional consumption efficiency is high, the technological process is more reasonable, and the functions are more complete. This has made my country's small and medium-sized custom chain manufacturing capabilities have a significant improvement.


Through the above introduction, China Conveyor Chains Company hopes that you can simply refer to the content of this article in future use.

---------------------

 

 

China Industrial Sprocket Company Introduces The Tips For Using Stainless Steel Chains

2021-5-24

With the continuous upgrading of modern equipment, the current stainless steel chain can also be used in some sophisticated production equipment. Compared with ordinary belt conveyors, there is indeed a very big difference.

For production companies, efficiency is naturally a very critical place, so it is important to choose a good stainless steel chain. Generally speaking, this kind of chain will be used in some large-scale production equipment. It can not only be widely used in large-scale production equipment or precision production instruments, but also has a wide range of applications for ordinary production transmission.

If everyone used belt transmission before, but its wear resistance can no longer meet the needs of modern users, so now some mechanical equipment will adopt the mode of chain transmission. Therefore, stainless steel chains have been more widely used. No matter what kind of harsh production environment, it can show very good product performance. Now the stainless steel chain produced by Ganlu Taihu Special Chain Factory is widely used in food and medicine production and is quite popular among users.

China Industrial Sprocket Company introduced that stainless steel chains are directly related to the production efficiency of the enterprise, and it is also directly related to the income of the entire factory. Therefore, there are many choices of stainless steel chains at present, but try to choose high-quality stainless steel chain products. It can be safer and more secure in later use. So on the whole, choosing a high-quality stainless steel chain is more cost-effective, because it can continue to bring high quality and has a longer service life, which is undoubtedly more cost-effective.

Through the above introduction, China Conveyor Chains Company hopes that you can simply refer to the content of this article in future use.

-----------------------------

 

China Industrial Sprocket Company Introduces The Characteristics Of Chain Devices

2021-5-10

China Industrial Sprocket Company introduces what is a chain device. This device has a conveyor chain and two cross conveyor chains. The conveyed items are moved from one conveying chain to the second conveying chain, and the conveying items can be changed basically at a right angle. In the conveying direction, the first conveying chain S1 is rotatably supported by an end stop rod or a small-diameter sprocket, and the second conveying chain is composed of at least two types of chain assemblies with different lengths and connecting pins.

A chain positioning device is provided, which has a drive sprocket, a driven sprocket and an endless chain. The driving sprocket is driven by the crankshaft rotation; the driven sprocket is drivingly connected with the output shaft that rotates in conjunction with the driving wheel of the bicycle; the endless chain is wound around The chain positioning device of a bicycle transmission device on the above-mentioned driving sprocket and the above-mentioned driven sprocket. When the chain of the bicycle transmission device is bent or slack due to the driving operation or vertical vibration of the bicycle, the chain can also be lined up. Position the roll on the drive sprocket.

Chain transmission and centralized heating mechanism. The chain transmission mechanism includes a chain and several transmission gears. A number of chain block components are fixed on the chain, including chain blocks. Each chain block is equipped with a heating seat for fixing the preform. The chain transmission mechanism also includes several groups of reversing disc components, the angle of the chain reversing around the reversing disc component is 90° or 180°, and the chain reversing 180° forms two rows of parallel reverse chains.

A chain pliers includes a pliers body and a chain. One end of the chain is the connecting end connected to the pliers body, and the other end is a free end. At least one is provided between the pliers body and the chain or on the pliers body and the chain to fix or limit the chain. The magnetic adsorption member located on the clamp body is used to reduce or eliminate the invalid swing of the free end of the chain. The magnetic adsorption member can be arranged at the end of the free end of the chain. It is directly used to stabilize the excess part needed for binding.

The main structure of the separate chain cover of the setting machine is made up of a chain bearing seat, two chain bodies, a chain cover plate, a needle plate seat and a nut lock, which are embedded in the sprockets on both sides of the chain body. The column tip tube is sleeved on the branch posts on both sides of the chain bearing base, and the upper end piece of the chain body is used to protrude the branch post to sleeve a separate horseshoe-shaped chain cover plate, which is sleeved on the needle plate seat that is perforated on both sides of the corresponding chain cover plate. On the pillars, a nut lock is integrated as a whole, so that the oil groove of the chain cover plate is used.

Through the above introduction, China Conveyor Chains Company hopes that you can simply refer to the content of this article in future use.

--------------------------

 

China Transmission Chains Exporter Introduces The Knowledge Of Maintenance Chain

2021-4-26

When the chain is subjected to anti-rust treatment to solve the operation process, it is necessary to wipe the pickling paste on its surface first, and ensure that the thickness of the coating is 0.5-3 mm, and the general reaction rate is more than 3 to ten minutes at 0°C It is necessary to extend the sexual time appropriately when using it on the place with thin oxide skin.

The China Transmission Chains Exporter recommends cleaning with a soft brush several times in the treatment method. After the surface scale is removed, rinse it with cold water. It should be noted that we must avoid rust. If cold water appears, it does not need to be discarded, stirred, or mixed before use.

When disassembling the prefabricated parts of the chain, be sure to change the new chain and the chain in addition to ensure the condition of the toothing. It is not possible to disassemble the new chain or the new chain alone. In that case, likely, the toothing condition is not good, which will accelerate the damage of the new chain and the chain. The chain is installed on the shaft without skew or wobble.

Therefore, the maintenance of the chain is very good. To better be able to reach a longer time limit and reduce internal losses, usually after the mechanical equipment is used, the power must be turned off immediately and the surface of the mechanical equipment must be performed on time. Clear. The chain is not easy to rust, and the service life is good.

Through the above introduction, Hangzhou Qianjiang Agricultural Chains  Manufacturers hopes that you can simply refer to the content of this article in future use.

-------------

China Transmission Chains Exporter Introduces The Mistakes Of The Chain

2021-4-19

 

With the continuous development trend in the field of stainless steel chains, stainless steel chain products have also been widely used. In the whole process of the use of stainless steel chain products, it is likely to cause deviation problems. Next, China Transmission Chains Exporter will introduce its emergence. The reason and solution of deviation problem:
  
1. Too fast starting speed of stainless steel chain can also cause deviation. At this time, it can be started at a slow speed. If the winding motor is used, it can be restarted after 2 jogs, and it can also get rid of the deviation condition reasonably.
  
2. The initial supporting force of the stainless steel chain is very small. The lack of support at the conveyor belt leaving the drum causes the conveyor belt to deviate. This type of situation generally occurs at startup, and the way to deal with it is to adjust the tensioning device to increase the initial support force.
  
3. The end transmission roller bearing is damaged and does not rotate, or the left and right roller bearings are damaged and do not rotate too much. The cause of the damage is that the tail sinks and floats too much, and there is no immediate repair and replacement of the components that have been damaged or rotate inefficiently, which increases the frictional resistance and leads to deviation.
  
4. If the load of the stainless steel chain is too large, it will run off if it exceeds the electrical working capacity. At this time, the beneficial side of deviation is that it has a maintenance effect on electricity. Otherwise, the electricity will be damaged after a long time. But in terms of operation, it is a deviation accident.

Through the above introduction, China Agricultural Chains Exporter hopes that you can simply refer to the content of this article in future use.-------------

 

-------------------------

China Transmission Chains Exporter Introduces The Use Of Agricultural Chain

2021-4-12

 

China Transmission Chains Exporter Introduces Agricultural Chain errors can affect the correctness of tool movement, and in some cases, it is the main factor affecting machining accuracy. For example, when hobbing gears, the ratio of the speed of the hob to the speed of the workpiece is stable, and it insists on a strict motion relationship.

When the transmission elements in the Agricultural Chain (such as hobbing sheaves, indexing worm gear sets, etc.) have manufacturing errors and installation errors, and they are worn during use, the correct motion contact will be damaged, and the rolled gears will be generated. Errors (such as weekly errors, cumulative errors and tooth errors, etc.). Therefore, the transmission accuracy of the machine tool transmission chain depends primarily on the manufacturing and installation accuracy of each transmission element, and secondly on the orientation of each transmission element in the transmission chain.

Through the above introduction, China Agricultural Chains Exporter hopes that you can simply refer to the content of this article in future use.

----------------------------------------

 

Transmission Chain Manufacturers Introduce The Characteristics Of Stainless Steel Chains

2021-3-22

Transmission Chain Manufacturers introduces the functions of different types of chains:

1. Stainless steel chain: The material of the parts is stainless steel, which is suitable for use in food industry and occasions susceptible to corrosion by chemicals and drugs, and can also be used in high and low temperature occasions.

2. Nickel-plated chain, zinc-plated chain, chrome-plated chain: all chains composed of carbon steel materials can be surface treated, and the surface of the parts is nickel-plated, galvanized or chrome-plated, which can be used in outdoor rain erosion and other occasions, but it cannot be prevented Strong chemical liquids corrode.

3. Self-lubricating chain: some parts are made of a kind of sintered metal impregnated with lubricating oil. This kind of chain has excellent wear resistance and corrosion resistance, does not require maintenance (maintenance free), and has the characteristics of long service life. It is widely used in occasions with high stress, wear resistance requirements, and cannot be maintained frequently, such as automated production lines in the food industry, high-end bicycle racing, and low-maintenance high-precision transmission machinery.

4. O-shaped sealing ring chain: An O-shaped sealing ring for sealing is installed between the inner and outer chain plates of the roller chain to prevent dust from entering and grease from flowing out of the hinge. The stainless steel chain is strictly pre-lubricated. Because the chain has super strong parts and reliable lubrication, it can be used in open transmission such as motorcycles.

5. Rubber chain: This kind of chain is based on the A, B series stainless steel chain with a U-shaped attachment plate on the outer link, and rubber (such as natural rubber NR, silicone rubber SI, etc.) can increase wear and tear on the attachment plate. Ability to reduce noise and increase shock resistance. Used for transportation.

Through the above introduction, Agricultural Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

-------------------------------

Transmission Chain Manufacturers Introduces The Use Strategy Of Transmission Chain

2021-3-15

 

Transmission Chain Manufacturers introduced that the conveyor chain will wear out after being used for a long time and with high intensity. If you do not pay attention to the operation during use, it may cause great damage to the conveyor chain.
 
The material of the conveyor chain is poor and the worker's operation is improper. The most easily worn parts of the chain as a whole are the sprocket and the pin. The wear of these two parts is mainly due to insufficient local lubrication. Therefore, in order to avoid this phenomenon, the operator should pay attention to frequently check the lubrication effect, add lubricating oil in time, check whether there is abrasive in the lubricating oil or change the lubrication method.
 
After the conveyor chain is slightly worn, the sprocket can be reversed so that the lighter wear side faces the chain. In addition, if the use environment is bad or the lubrication and sealing is poor, it will cause the conveyor chain to wear. Once the conveyor chain is worn, the conveyor chain will become longer, and it will easily cause tooth skipping or chain loss during work, reducing the service life of the chain and accelerating the conveyor chain. Invalidate.

Through the above introduction, Agricultural Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

------------------------------

 

Transmission Chain Manufacturer Introduces The Knowledge Of Installing Sprocket

2021-3-8

 

The stainless steel sprocket belongs to the more critical parts in the electrical equipment, so that it can increase its service life. It must be strong during installation to optimize the running-in period of each part, so it must be properly and effectively developed. Transmission Chain Manufacturer introduces five aspects that must be paid attention to when installing stainless steel sprocket:

1. First, purchase the appropriate stainless steel sprocket model specifications and materials according to different industrial equipment models and specifications.
 
2. Check whether the location of the stainless steel sprocket is intact, whether each connecting part and tightening is intact, if there is a problem, it must be adjusted or replaced immediately.

3. Install the stainless steel sprocket in a proper way, install the master and slave sprocket in time, tighten various standard parts and couplings, if necessary, ask the technical professional staff to draw the installation engineering drawings first, and then start installation.

4. After installing the drive system chain and adjusting the tightness, check whether the chain and the sprocket cooperate smoothly, without interference with the chain cover; after installation, the driven chain should have structural reinforcement measures, because the driven sprocket It is very easy to loosen, and it is necessary to be able to maintain and moisturize the sprockets and chains on time. Maintaining moisturization and maintenance at all times can improve their service life.

5. If there is a component that must be replaced, it is not necessary to replace only the chain or sprocket, but the replacement of supporting facilities should be carried out. The independent replacement of goods will increase its wear, and the difficulty factor can allow the manufacturer to carry out technical and professional maintenance.

Through the above introduction, Agricultural Chain  Manufacturers hopes that you can simply refer to the content of this article in future use.

-------------------------

The Scope Of Use Of Non-Standard Industrial Chain

2021-3-1


Non-standard Industrial Chain refers to a chain that is not manufactured in accordance with the unified standards and specifications promulgated by the country, but a non-standard chain that is designed and manufactured by itself according to the needs of its own use. And the appearance or performance is not in the national equipment product catalog.

In order to meet the needs of industrial production, the chains that have been produced and proved to have good performance are finalized and serialized, called standard chains. According to user requirements, on the basis of standard products, chains produced, modified or customized are called non-standard chains.

Standardized and serialized products are mainly suitable for general-purpose machinery and equipment. In fact, when designing a new industrial device, some of the chains are dedicated, which cannot be found in the existing serialized list and need to be designed and manufactured separately. And the versatility in the future will not be high, this kind of chain is called non-standard chain.

At present, there are many areas where non-standard Industrial Chain occasions are mentioned, mainly in the chemical and petrochemical industries. Because the chain has many products and different craftsmanship, there are also many non-standard chains.

Non-standard non-standard Industrial Chain is a non-standard chain tailor-made according to the size of special mechanical gears. It does not meet the size standard defined by the national standard, but the quality is the same. The material is the same.

Through the above introduction, Leaf Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

--------------------

Transmission Chain Manufacturers Introduces Solutions For Fatigue Damage

2021-2-23


We need to pay attention to details when we use the chain, and we must be good at discovering and solving problems from small places. Today Transmission Chain Manufacturers will talk about the problem of chains.

As we all know, our stainless steel chain is composed of many connecting pieces. In use, we found that many chain damages are caused by the fracture near the hole of the connecting piece, and there is a precursor before the fracture: micro cracks are generated around the hole until it breaks. . We call this phenomenon fatigue damage.

The basic solution is to reduce the load or replace the chain with a large load-bearing capacity, especially starting from the moment the crack is discovered. After all, the crack develops very fast and must be paid attention to.

Through the above introduction, Agricultural Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

-----------------------------------

Hangzhou Qianjiang Chain Shares A Merry Christmas Atmosphere

2020-Transmission Chain Manufacturers Introduces Solutions For Fatigue DamageTransmission Chain Manufacturers Introduces Solutions For Fatigue Damage12-14

When Christmas is coming, Hangzhou Qianjiang Chain wishes everyone a happy life and a smooth career.

 

Christmas Eve prayer; Christmas wish; New Year's blessings; entrusted to the sky full of stars, bring you, Hangzhou Qianjiang Chain sincere greetings: friends, happy! happy!

 

Hangzhou Qianjiang Chain Industries Co., Ltd founded in 1987, is a professional manufacturer of industry transmission chains, motorcycle chains, conveyor chains, dust and waterproof sealed chains, and some special chains,

It is also the earliest manufacturer cooperated with the Chain Drive Research Institute of Jilin University, in 1991, to optimize the continuously variable transmission chain and silent toothed chain, and developed a high-strength motorcycle oil seal chain and heavy-duty roller chain.

Welcome to visit the company's official website to learn more www.hzqjchain.com

 

-------------------------------------

Industrial Sprocket Manufacturers Introduces The Maintenance Process Of Plate Chain

2020-11-24

 

Industrial Sprocket Manufacturers introduced that the scrap of a plate chain can be judged from several aspects:

First of all, we need to understand that the amount of wear paper allowed by the chain is limited, generally within 10%.

Secondly, take a look at whether the twist of the main ring of the chain is very serious, usually if the twist angle is greater than 10, it can be judged that the chain is scrapped. The sling of the plate chain will crack and bend after a long time of use. Once the chain has problems, it will affect the production schedule.

In order to avoid the rapid scrapping of the plate chain, what we need to do is to do a good job in daily maintenance and maintenance. How to do it?

First of all, the sprocket can be installed on the shaft, so as to avoid the material strip from shaking and tilting greatly.

Secondly, the same transmission component, which does not require a rotating shaft to rotate, needs to be kept on a horizontal plane.

Then, observe the tightness of the plate chain. Too tight or too loose is inappropriate. If the chain is too loose, the chain will be disconnected, and too tight will increase the transmission power. Avoid mixed use of new and old chains to avoid impact and break the chain during use.

Through the above introduction, Conveyor Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

---------------------

 

Silent Chain Related Knowledge

2020-11-09

 

 

Because of its specific functions, the Silent Chain has a different assembly method from other chains, creating the unique endurance and pulling force of the Silent Chain . And this kind of chain is used in various machinery in various industries such as agriculture, mining, metallurgy, petrochemical industry and lifting and transportation.

For the chain, maintenance is required after a period of use. Of course, we can use special protective oil for it during maintenance, so as to avoid the chain from rusting. Such regular maintenance can keep the chain working efficiently.


Through the above introduction, Motorcycle Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

----------------------

 

 

Silent Chain Application Requirements

2020-11-02

Silent Chain is widely used in food, chemical, pharmaceutical, rubber, printing, silk and other machinery, as well as supporting various import and export machinery. It is an excellent equipment for modern equipment. Especially suitable for corrosion resistance, cleaning or certain chemical demanding fields and high and low temperature occasions. Stainless steel chain is a friction-driven machine that transports materials in a continuous manner. Stainless steel chain is not only widely used in industry, but also in construction industry.
The effect of using 430 stainless steel in a cool indoor environment is equally good. However, if you want to maintain its appearance outdoors in the countryside and cities, you need to wash it frequently. In heavily polluted industrial areas and coastal areas, the dial will be very dirty and even rusty. However, to obtain the aesthetic effect in the outdoor environment, nickel-containing stainless steel mesh belts are required. In fact, stainless steel chains are manufactured in full-standard hardware shapes and procreation, and there are many special shapes.
Stainless steel chain combines performance, appearance and use characteristics, because stainless steel will still be one of the best construction talents in the world. Most use requirements of stainless steel chains are to maintain the original appearance of the building for a long time. When specifying the type of stainless steel to be selected, the main considerations of the net chain are the required aesthetic standards, the corrosiveness of the local atmosphere and the cleaning policy to be adopted.

Through the above introduction, Motorcycle Chain Manufacturers hopes that you can simply refer to the content of this article in future use.

 

---------------------------------------------------

 

Silent Chain manufacturer introduces what is a coupling chain?

2020-10-26

Silent Chain manufacturer introduces what is a coupling chain?

The coupling chain is a special chain for couplings. It is characterized by using a common chain to mesh with two parallel sprockets with the same number of teeth. In high-speed and heavy-duty power transmission, some couplings have buffering and reducing Vibrate and improve the dynamic performance of the shafting. The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft. The general power machine is mostly connected with the working machine by means of a coupling.

The coupling chain has simple structure, convenient assembly and disassembly, no need to move the connected two shafts during disassembly, compact size, light weight, certain compensation ability, low requirements for installation accuracy, reliable work, long life, and low cost Etc.

Coupling chain can be used for the shaft transmission of textile, agricultural machinery, lifting and transportation, engineering, mining, light industry, chemical industry and other machinery. It is suitable for high temperature, humidity and dusty conditions. It is not suitable for high speed, severe impact load and When transmitting axial force, the chain coupling should work under the condition of good lubrication and protective cover.


The above content is organized and shared by Motorcycle Chain manufacturer, hoping to help those in need.

-------------------------------------------

Silent Chain Manufacturers Introduces What Is Easy To Dismantle Chain

2020-10-19


Common chains include transmission chains, conveyor chains, easy-to-disassemble chains, plate chains, special chains, etc., each of which has different uses in their respective fields. Here Silent Chain Manufacturers will introduce their representative uses Right.

1. Transmission chain: includes short pitch precision roller chain for A series transmission, short pitch precision roller chain for B series transmission, short pitch precision roller chain for heavy series transmission, oil drilling rig transmission roller chain, transmission Use short pitch precision bushing chains, double pitch precision roller chains for transmission, curved plate roller chains for heavy-duty transmission, toothed chains for transmission, motorcycle chains, bicycle chains, etc.

2. Conveyor chains: including short pitch precision roller conveyor chains, double pitch roller conveyor chains, long pitch conveyor chains, flat top chains for conveying, short pitch precision bushing chains for conveying, and light double-hinged suspension Conveyor chain.

3. Easy-to-dismantle chains: Including buried arbor conveyor chains, engineering steel roller conveyor chains, engineering steel sleeve conveyor chains, agricultural roller conveyor chains, agricultural machinery clamping conveyor chains, and drag chains.

4. Plate chain: including hoisting circular chain, high-strength circular chain for mining, hoist circular chain, pin chain, cold drawn machine chain, block heavy-duty chain, roller chain, Traction refers to the bent plate chain.

5. Dedicated chain: Including sliding blade type continuously variable speed chain, protective drag chain, saw chain, boiler chain, tap water scraping chain, printing iron oven chain, pipe clamp chain, agricultural reel chain, thrust chain, special-shaped chain.

The above content is organized and shared by Motorcycle Chain Manufacturers, hoping to help those in need.

 

 

Motorcycle Chain Manufacturers Introduces The Skills Of Chain Drive

2020-10-12

Motorcycle Chain Manufacturers introduces the characteristics of chain:
1. Features of chain drive:
①Compared with gear transmission, it can transmit motion and power when the centers of the two shafts are far apart;
②Able to work under low speed, heavy load, and high-temperature conditions and in a bad environment with dusty soil;
③Compared with belt transmission, it can guarantee an accurate average transmission ratio, the transmission power is larger, and the force acting on the shaft and bearing is smaller;
④The transmission efficiency is high, generally up to 0.95~0.97; ⑤After the hinge of the chain is worn, the pitch becomes larger, causing the phenomenon of shedding; ⑥The installation and maintenance requirements are higher. The sprocket material is generally structural steel.

The above content is organized and shared by Silent Chain manufacturer, hoping to help those in need.

----------------------------------------------------------------------------

 

Drive Chain Manufacturers Introduces The Ultimate Pressure Range Of Drive Chains

2020-9-21

Drive Chain Manufacturers introduced how much pressure the drive chain can withstand? What does it have to do with?

The maximum pressure that the transmission chain can bear is related to its chain number, and the ultimate pressure of different chain numbers is different. For example, 03A-1 chain number: 15 one point ultimate tension: 1.80KN; 08A-1 chain number: 40 four-point ultimate tension: 14.10KN; 16A-1 chain number: 80 eight-point ultimate tension: 56.70KN; 36A-1 chain No.: 180 Eighteen points ultimate tension: 1.80KN; 12B-1 chain number: 60 Six points ultimate tension: 29.00KN; 20B-1 chain number: 100 One-inch ultimate tension: 95.50KN. You can find the specific load-bearing range online.

The above content is organized and shared by Roller Chain Manufacturers, hoping to help those in need.

-------------------------------

 

Selection Criteria For Drive Chain

2020-9-14

 

How to choose Drive Chain ?

First of all, it is the choice of stainless steel chain material. According to various standards, the requirements for stainless steel chains are: high surface hardness and improved wear resistance; the static breaking force of stainless steel chains should not be less than 8500N (87kgf);

Both ends have good plasticity for easy riveting. It has sufficient fatigue strength; it can work in a temperature range of ±40 degrees Celsius without brittle fracture.

The wear of the stainless steel chain is three times that of the hole. Although the stainless steel chain will not be crushed, the middle part of the stainless steel chain will wear out quickly. The shear stress and extrusion stress at both ends of the stainless steel chain are small. Low-carbon steel and low-carbon alloy steel can meet the requirements. The unit compressive stress of the hinge is very large. Therefore, the hinge surface of the stainless steel chain must be strengthened to increase the hardness to improve wear resistance.

From real life, we can conclude that the choice of materials and heat treatment process should be reasonable and feasible. And through scientific calculation and experimental analysis, we can better determine the reasonable material performance indicators, so as to better and more accurately select the material of the stainless steel chain.

The above content is organized and shared by Roller Chain Manufacturers, hoping to help those in need.

--------------------------------------------

 

Drive Chain Supplier Introduces The Repair Process Of The Chain

2020-9-7

Drive Chain supplier introduced that in order to meet the installation requirements of different specifications of machinery, the specifications selected for stainless steel chains are also different. After a period of use of stainless steel chains, due to human factors or goals, rust spots often appear on the surface. The appearance of rust spots greatly reduces the stainless steel chain. If the smoothness of the stainless steel chain is not solved for a long time, the life of the stainless steel chain will be shortened. In this case, once the oxidation spots on the surface of the stainless steel power chain are treated in time.
At the same time, it can also be removed with pickling paste, which helps to improve the surface finish. When handling stainless steel on the stainless steel chain, the pickling paste is applied to the surface of the stainless steel chain, and the oxidation spots can be completely removed. To avoid oxidation, it is easy to use water Rinse, but it will not work after the problem occurs. It should be avoided in advance. Try to avoid contact of the stainless steel chain with corrosive substances such as acid and alkali, and control the working environment of the stainless steel chain to reduce the possibility of rust stains.
In addition to being used for mechanical equipment, the stainless steel chain can also be used as a machine. It only needs to be connected by a stainless steel chain between each of the two railings to form a whole. Although the stainless steel chain of the railing is very strong, it has been exposed. It has been exposed to wind and rain for a long time outside, so pay more attention to the quality of the stainless steel chain here, but in fact, the thickness of the stainless steel chain will affect safety.
If it is used as a railing chain, the thickness of the stainless steel chain should be considered. Usually the maintenance of the railing chain is the smearing method. As long as the waste oil is evenly applied to the mechanical stainless steel chain, it can be used for maintenance. This is very convenient. Another method It uses oil and butter metal and heats it together with the stainless steel chain. The purpose is to make the liquid after the solid liquefy enter the friction surface of the winding, which effectively reduces the friction between the railing conditions and has a good curing effect on the stainless steel chain.


The above content is organized and shared by Roller Chain manufacturer, hoping to help those in need.

------------------------------------

 

 

 

How To Choose Roller Chain

2020-9-1

As the quality of life improves, everyone is becoming more and more picky about the use of supplies. Therefore, let's take a look at how to choose Roller Chain correctly:

First of all, it is made of stainless steel, with high surface hardness, strong wear resistance, and static breaking force should not be less than 8500N (87kgf);

Both ends of the chain have good plasticity, which is convenient for riveting. It has sufficient fatigue strength; it can work in a temperature range of ±40 degrees Celsius without brittle fracture.

The wear of the chain is three times that of the hole. Will not be crushed, but the middle part will wear quickly. The shear stress and extrusion stress at both ends are smaller. Low-carbon steel and low-carbon alloy steel can meet the requirements. The unit compressive stress of the hinge is very large. Therefore, the hinge surface of the stainless steel chain must be strengthened to increase the hardness to improve the wear resistance.

The above content is organized and shared by Drive Chain manufacturer, hoping to help those in need.

------------------------------------------

 

 

Roller Chain Method To Reduce Wear

2020-8-24

 

Under normal circumstances, the driven sprocket in the traditional sprocket is sometimes installed on the driving wheel of the motorcycle under the requirements of the standard, that is, the transmission method of the Roller Chain is used to bring the transmission of the driving wheel, and Under normal circumstances, the driving sprocket is relatively small compared to the driven sprocket in terms of size, so that this method can achieve the purpose of reducing its own speed, and at the same time, it can also achieve the increase in torque. The effect is more obvious. We are adhering to the business tenet of "Pioneering and Innovating, Continuously Making Progress, Winning by Quality". The first is the emphasis and development of human resources. Our technical backbone not only has rich production experience, but also has keen market insight. "Workers must sharpen their tools if they want to do their jobs well." The advanced production and testing equipment and the Yingkou sprocket also ensure that we can complete the business assigned by customers with high quality.

Through the introduction of modern corporate management concepts and internal integration of the company, the company is in a good state of production and circulation. The vicissitudes of the business world, and we have been baptized by the market for everlasting prosperity, thanks to our passion for entrepreneurship. The new sprocket is too long or stretched after use, which is difficult to adjust. You can remove the chain link depending on the situation, but it must be an even number. The chain link should pass through the back of the sprocket, the lock piece should be inserted outside, and the opening of the lock piece should face the opposite direction of rotation. The sprocket should be filled with lubricant in time during work. The lubricating oil must enter the matching gap between the roller and the inner sleeve to improve working conditions and reduce wear. The old sprocket cannot be mixed with some new sprocket, otherwise it is easy to produce impact in the transmission and break the sprocket. When the machine is stored for a long time, the sprocket should be removed and cleaned with kerosene or diesel oil, and then coated with oil or butter and stored in a dry place.

The above content is organized and shared by the Drive Chain manufacturer, hoping to help those in need.

----------------------------------------------------------

Precautions For The Production Of Drive Chain

2020-8-17

 

There will be some problems in the production process of Drive Chain . If it is a big problem, the loss will be great, and it is better to save small problems, and these problems can be done in the usual production process. Avoid as much as possible, so the fewer problems that arise during the production process, the better.
The raw materials must be prepared before chain production. The raw materials are important. There is no production without raw materials. For us, we need to pay attention to this problem. Under such a situation, it is very good, and the raw materials are also Need to pay attention to the preservation environment, so that it will not cause loss.
In the production process, we must pay attention to safety issues. Safety issues are critical. During production, safety means less loss. It is better for us. Safety issues cannot be ignored. It can have a better effect.
After production, products need to be tested, and product testing needs everyone to pay attention to, testing can reduce the failure rate, for us, it is possible to obtain better products, and it is also very good in market sales. of.
In the process of using the chain, its tightness should be appropriate. Too tight will increase power consumption and the bearings will easily wear out; too loose sprocket will easily jump and fall off the chain. The tightness of the sprocket is: lifted or pressed down from the middle of the sprocket, which is about 2%-3% of the center distance between the two sprocket. The sprocket should not swing or skew when installed on the shaft.
When the chain is severely worn, the new sprocket and the new sprocket should be replaced at the same time to ensure good meshing. The new sprocket is too long or stretched after use, which is difficult to adjust. You can remove the chain link depending on the situation, but it must be an even number. The sprocket should be filled with lubricant in time during work. When the machine is stored for a long time, the sprocket should be removed and cleaned with kerosene or diesel oil, and then coated with oil or butter and stored in a dry place.
The above content is compiled and shared by the Roller Chain manufacturer, hoping to help those in need.

--------------------------

 

Ways To Solve Drive Chain Jump

2020-8-10

 

What is the reason for the tooth jump of Drive Chain ?

First of all, the chain is too loose and the sag is too large, causing the chain to be unable to be tightly connected with the sprocket during operation, resulting in a phenomenon of tooth skipping. Protection method: properly block a section of the chain, make the chain moderately tensioned, and the chain and gears cooperate well.
Second, the chain or sprocket is severely worn. When the chain is clamped, the clamping position will become loose. When force is applied, the teeth simply jump. Protection method: According to the actual situation, replace the new chain or sprocket.
Third, severe overload can also cause sprocket teeth to jump. Because the chain cannot meet the load-bearing requirements, under overload conditions, the chain receives excessive stress, which makes the chain extremely tight and presents a phenomenon of tooth skipping. Protection method: select high-strength chains according to the load to meet the load requirements and eliminate the cause of overload.

The above content is organized and shared by the Roller Chain manufacturer, hoping to help more people.

---------------------------------------

 

 

Drive Chain Manufacturers Share The Application Range Of The Chain Plate

2020-8-4

It is used for cooling and conveying glass products and castings, and maybe for discharging and conveying of machined iron filings. It can also transport various types of metal products, such as stamping waste or various types of metal processing parts. It has the characteristics of large load and durability. There are stainless steel, engineering plastics, carbon steel and other raw materials. There are many standard varieties. They can be selected according to the transportation materials and process requirements, which can meet the different needs of various industries. Next, Drive Chain manufacturers will share what is a chain board?


Chain plates are widely used in food, canned food, pharmaceuticals, beverages, cosmetics, motorcycle assembly lines, animal slaughter production lines, cleaning supplies, paper products, condiments, dairy and tobacco, etc. Line shipping. There are the following types of chain plates: chip conveyor chain plates, metal chain plates, transport chain plates, cleaning chain plates, beer metal chain plates, chip conveyor chain plates, punching chain plates, stainless steel chain plates, and carbon steel chains. Plate, transmission chain plate, engineering plastic chain plate, keel chain plate and so on.

The main feature of the chain plate: the appearance is stable, and it is not easy to be disturbed by other materials. It can carry heavy materials and is durable. It can plan and produce suitable standard chain plates according to specific conditions. The commonly used chain plate standards are 31.75, 38.1, and 50.8. Compared with other transmission belts, the cost is higher than Ah.

During the transportation of the chain plate, the phenomenon of unstable operation and deviation is often present. The maintenance methods are as follows. The tension shaft of the chain plate is adjusted and the tension is moderate to prevent unnecessary damage to the edges. Secondly, check whether there is corrosion inside the chain conveyor and make necessary replacements. Finally, check whether the two ends of the chain drive shaft are in sync and whether the tooth ends are worn excessively.

The above content is compiled and shared by the Roller Chain manufacturer, hoping to help those in need.

-----------------------------------------

Drive Chain Suppliers Share 3 Details Of The Chain

2020-7-28

 

 

The Drive Chain supplier teaches you how to judge the quality of the chain:

1. The quality of the chain can be distinguished from the appearance
It mainly depends on the deformation of the chain, as well as the current cracks and corrosion. The other is that the pins, rollers, and top parts can be normal. If there is any looseness, deformation, wear and fracture, and check that the chain will not make other sounds or abnormal vibrations during use, and ensure that the chain is Good stability.

2. Accurately measure the length of the chain
Before measurement, clean it up, and then wrap the chain to be tested on the two sprockets so that it can have better support. When measuring time, bear a certain load on the stainless steel chain, so that the chain can have good tension, and the chain can be used on the sprocket to ensure a good fit between the two sprocket, and measure the center distance.

3. Measure the elongation of the chain
In order to solve the gap on the chain, a certain tension must be applied to the chain to stop the measurement. In order to ensure that the measurement error is small, the measurement should be stopped at an appropriate position according to the actual situation, and then the extension length should reach the limit.

The above content is organized and shared by Roller Chain suppliers, hoping to help those in need.

----------------------

 

 Rust Prevention Method For Roller Chain

2020-7-21

 

Roller Chain has played a great role in the current industrial production. Then after long-term use, you will find that the components will age or gradually fail. So what exactly causes these rusting phenomena?

1. The lifting of the chain is due to the lack of anti-rust treatment

During the production process of the hoisting chain, the operators did not strictly follow the production requirements for anti-rust treatment. At the same time, they did not use anti-rust packaging. Once they come into contact with the gas behind the corrosive liquid , they will rust.


2. The corrosion of lifting chain is caused by the quality of anti-rust oil

Even if the anti-rust lubricant and clean flammable products are used in the lifting chain, if the product quality does not meet the technical requirements, it will cause waste to the work and cause corrosion. Hanging chain.

3. The corrosion of the lifting chain is related to the chain material

In order to reduce the production cost of the hanging chain, some manufacturers have selected unqualified materials, such as high content of non-metallic impurities in steel, which reduces the corrosion resistance of the forming chain itself, resulting in similar defects.


4. The corrosion of the lifting chain is related to the working environment

When the lifting chain works in a harsh environment for a long time, it will be considered that the content of harmful substances is too high or the space is too small to prevent rust, resulting in the failure of the lifting chain.

The above content is compiled and shared by the Drive Chain manufacturer, hoping to help those in need.

----------------------------------------------------

 

Why Does Drive Chain Wear Out

2020-7-14

 

The level of wear is different, we have to deal with the situation. After the Drive Chain wears, first see if it can be severe. Assuming that it is a small area of ​​wear, if it can be used continuously, the sign is clear. It is not only necessary to do daily maintenance, it is more important What is important is that in the process of application, the wear situation is often emphasized, so as to switch in time and minimize our loss. Assuming severe conditions, the new Drive Chain should be converted in time, and the chains should also be converted together to ensure outstanding engagement. Assuming that only the Drive Chain is simply converted, if the meshing is not good, the Drive Chain wear will be accelerated. In terms of grinding, of course, the cost will be reduced at the time, but for a long time, your loss will be much greater!

In addition, in order to ensure that the chain drive has an outstanding application effect, the necessary heat treatment of the material is stopped. In this way, not only can its application effect be added, but also its function can be fully utilized at the time of application, and economic loss can be reduced.

The above content is organized and shared by Roller Chain manufacturers, hoping to help those in need.

---------------------------------------------------------

 

Industrial Chain Manufacturers Share The Maintenance Method Of The Chain

2020-4-16

Today, Industrial Chain manufacturers come to tell you how to extend the life of the chain:

1. Our usage habits, everyone's riding habits are different, if you have a good habit during use, you can improve the wear resistance of your chain
2. The environment you are in should be a chain of consumables. In the process of use, it will experience damp, high temperature and other harsh environments, so to improve the life of the use, you must pay attention to the environment of use
3. That is our own habits
4. I think everything must be cherished, and the maintenance of stainless steel chains is often important.

information about Industrial Chain : https://www.hzqjchain.com/