Silent Chain Manufacturers Share The Causes Of Scars On The Chain Surface

Many customers have called to ask why the metallurgical industry chains will show scars on the surface after being used for a period of time. Is the quality not good enough and fake products? Actually not, Silent Chain  manufacturers will tell you what is going on.

 

 

 

These scars are generally on the surface, and are one or more pits of irregular shape, different materials, different scales, steel, low alloy steel, and high strength steel scars are more likely to occur than ordinary carbon steel. There are usually two reasons:

 

 

 

1. During the use of chains in the metallurgical industry, the slab head and tail return slag product tumor chain, when the steel slag is serious, it can form a dense and firmly attached to the blank area table. Steel slag is the accumulation of billet metal flowing during the cutting process, which is blown away by the wind, but overflows along the cut and forms in the blank at one end of the table. Analysis of the causes of slag in the table area: improved low-pressure oxygen purity, unsuitable or fluctuating cutting life; later, expanded; different types of steel, cross-section plate chain conveyor, cutting trolley speed setting is incorrect, and the cutting effect deteriorated

 

 

 

2. In general, the main cause of scars on the surface of chains used in the metallurgical industry is that the scale of the chain has not been timely and effective. Two shaft type continuous casting billet deburring machine chain cutting, the position of the photoelectric detection board, automatic landing control rotary file deburring machine, hammer head and tail billet continuous casting. Burrs are not cleaned, and then during the rolling process, the chains are harmed and scarred.

 

 

information about Silent Chain : https://www.hzqjchain.com/product/silent-chains/  

What Are The Functions Of Industrial Chain

Industrial Chain Light and small lifting hoist (see hoisting machinery) that pulls the chain or pulls the handle manually to lift or pull heavy objects. It is divided into hand hoist and hand hoist. Hand lever hoists can be divided into ring chain lever lever hoists and wire rope lever lever hoists, which are mainly used for lifting objects and machine traction, as well as tightening steel strands and aluminum strands in wire construction. The lifting weight of this type of gourd generally does not exceed 3t, and the lifting height is usually 1.5m. People can directly pull the handle on the ground to control the lifting of heavy objects. When not loaded, the hook can be lowered quickly, which can shorten the return time. The chain hoist pulls the hoist and pulls the handle to drive the lifting chain to lift heavy objects through the transmission mechanism. The chain hoist is an ideal tool for equipment installation, cargo lifting, object fixing, lashing and traction, especially for traction at any angle and in the case of small venues, open-air operation and no power supply, it also shows its superiority.

Industrial chain is a chain on a device that continuously transports materials in space. The materials are installed on a dedicated box or bracket and run along a predetermined track. The line body can go up and down and turn in the space, the layout method is flexible for own use, and the floor space is small. It is used in large-scale flow production operations in industries such as machinery, automobiles, electronics, household appliances, light industry, food, and chemical industries. In the process of conveying workpieces, it adopts multi-point output and delivery in the air, and its conveying speed can be adjusted, which is very conducive to mechanical assembly and other operations.

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

What Lubricant Does Conveyor Chain Use?

In the chain industry, Conveyor Chain is a commonly used chain type. It also needs maintenance of lubricating oil during its use. So how to choose the appropriate lubricating oil? Let's take a look below

Oil drip lubrication, use the oil cup to drop oil to the gap between the inner and outer chain plates of the loose edge through the oil pipe.

The oil pump is lubricated by pressure injection, and the oil pump continuously supplies oil to the chain through the oil pipe. Marketing consultant circulating oil can play the role of lubrication and cooling.
Artificially use regular oil pots or oil brushes to supply oil.

Oil bath lubrication or splash lubrication adopts a sealed transmission box. The former part of the chain and sprocket is immersed in oil, and the latter uses a larger diameter oil splash plate to splash oil.

information about Conveyor Chain : https://www.hzqjchain.com/product/conveyor-chains/

Roller Chain Manufacturer Introduced That Chain Drives Are Widely Used

Due to the widespread use of chain drives, manufacturers and users often have friction on quality issues. How to identify their quality problems is the key to solving the problem. Therefore, Roller Chain manufacturers analyze the common problems that occur during the use of chain drives. And discuss, and put forward its solution for the reference of chain manufacturers and users.

1. Lubrication of chain drive
The proper maintenance of any chain drive requires proper lubrication. The wear and fatigue of the chain, the wear and corrosion of the sprocket, the inflexible links or the tight hinges are all related to lubrication. If the chain wears faster, the pin changes color, and the operation is not stable, indicating insufficient lubrication of the chain.
Under normal circumstances, it is recommended to use the following lubricants: temperature 200-400C use 20th oil, 400-1000C use 30th oil, 1000-1200C use 40th oil, 1200-1400C use 50th oil. The lubrication method can be manual. Brush or oil pot for oil lubrication. The environment requires chains with shells to be lubricated with shallow oil or dripping oil. If the operating temperature exceeds 3000C and cannot be lubricated with petroleum, it is more effective to use a solution of colloidal graphite dispersed in carbon tetrachloride or white kerosene.

Second, the faults in the chain drive and troubleshooting methods

1. The parallelism of the front and rear axes and the coplanarity of the sprocket:
In terms of wear life, the performance of the chain depends to a large extent on the correct installation of the front and rear axles and sprockets. The requirement is that the parallelism of the front and rear axes is within 1/300. The coplanarity of the front and rear wheels is 0.5-1.0mm / m. If the above problems are found during the operation of the chain, it should be adjusted in time.

2. Chain tension:
The tension of the chain is related to the sagging distance of the loose side of the chain. For horizontal and tilt drives with adjustable center distance, the sag of the loose side of the chain should be 2% of the center distance. The vertical transmission of the centerline or vibration load, the reverse transmission should make the chain more tensioned.

3. Chain and sprocket cooperation:
If the chain and sprocket are not well coordinated, the chain hinge may be worn and the pitch is extended. If there is a tooth jump, the chain should be replaced in time. If the sprocket is worn, it must be replaced to avoid damage to the new chain.

4. Chain jitter:
The cause of chain jitter is that the chain is too loose, the load is too heavy, or one or more links are not flexible. The solution is to install chain tensioning device or adjustable center distance. Reduce the load if possible.

5. Excessive noise during chain operation:
The reason for the excessive noise is that the sprockets are not coplanar; the chain is too tight or too small; insufficient lubrication; the chain and sprocket are worn; or the chain pitch size is too large.
The solution is to check the coplanarity of the front and rear axes parallel to the sprocket to correct it. Adjust the center distance and tensioning device to obtain proper tightness and ensure lubrication to the workpiece.

6. Side grinding of chain plate:
If the inner surface of the inner link chain plate is badly worn, it means that the transmission is not aligned. The solution is to check the alignment of the shaft and sprocket. If there is no problem with the installation, it can be observed whether the rigidity is insufficient due to excessive load deformation during operation.

7. Chain plate fatigue:
When the load is too large and exceeds the fatigue limit of the chain plate, the chain plate will fatigue and produce micro cracks around the hole until it breaks.
The solution is to reduce the load or replace the chain with large carrying capacity.

8. Pin shaft wear:
Usually pin wear is caused by insufficient lubrication. Always check the lubricant for abrasives or change the lubrication method.

9. Pin glue:
Pin glue is generally caused by insufficient oil supply. If only one end is glued, check the installation of the shaft and sprocket, whether the shaft is parallel, whether the sprocket is coplanar, and whether the shaft and sprocket move during operation.

10. Sprocket tooth wear:
If there is obvious wear on both sides of the sprocket teeth, the transmission alignment is not good. If there is a "bent groove" indicating excessive wear, the sprocket should be replaced, or the sprocket can be reversed so that the lightly worn side faces the chain. The excessively worn sprocket and chain are replaced together.

 

information about Roller Chain : https://www.hzqjchain.com/product/roller-chains/

How To Repair Roller Chain

Before a car with a rear dial dials the chain to the state of the smallest wheel pair and the smallest wheel, the Roller Chain is looser and easier to operate.

After the chain is cleaned and lubricated, slowly turn the chainwheel. The chain links that come out of the rear dial should be able to be straightened. If some chain links still maintain a certain angle, it means that it does not move smoothly. It is a knot and should be taken. Adjustment. It is found that the damaged link must be replaced in time. The manufacturer of Roller Chain recommends strictly distinguishing three kinds of pins and using connecting pins. Pay attention to the straightness when using the chain, so that it is not easy to distort the thimble. Careful use of tools can not only protect the tools, but also achieve good results. Otherwise, the tools are easily damaged, and the damaged tools are more likely to damage the parts, which is a vicious circle. 

information about Roller Chain : https://www.hzqjchain.com/product/roller-chains/