There are many types of chain, including plate chain and two speed chain. Fatigue failure of plate chain is a problem we need to understand, but for two speed chain, correct use is more important. Mastering these knowledge is conducive to prolonging the service life of the chain.

As mechanical equipment often needs 24-hour continuous operation, plate chain, as an important part of the chain, needs high requirements, because if it reaches a certain fatigue value, the chain will soon fail and fail.

If the load of the plate chain is too large during the operation, resulting in uneven force, it is easy to break or be squeezed. However, because the tension of the tension side of the chain is different from that of the tension side, the working state of the chain is alternating tensile stress. After a certain number of stress cycles, the chain will be damaged due to insufficient fatigue strength.

In the case of plate chain failure, the surface carburization of parts can only be solved by strengthening to resist the stress concentration; the waist of chain plate is widened to reduce the stress concentration of holes; the parts are shot peened, etc.