In the maintenance rules for chain products, in addition to regular cleaning and adding lubricants, it is also necessary to check and adjust the vertical degree of the loose edges of the chain while ensuring that the degree is appropriate. Because once the degree of verticalness of the loose side of the chain is too high or too low, it will hinder the normal use of the chain.
When adjusting, it should be determined according to the actual working conditions of the chain. If the chain is under the shocked load and the vertical transmission and the opposite direction, the dynamic degree of the chain will be more suitable when the dynamic braking is performed. However, if the chain is inclined and horizontally driven at the center of the adjustment, then its sag should be maintained at about 1% to 2% of the center distance.
The detection and adjustment of the vertical degree of the loose edge of the chain is on the one hand, on the one hand, the processing technique after the material of the chain is embrittled. In order to prevent the chain material from embrittlement, a positioning device may be added to the chain, or a groove may be arranged inside the chain column, and upper and lower chain feeders are respectively arranged at upper and lower ends of the column.
The reason why the chain material is embrittled may be caused by the material carburizing and the heat treatment process being incorrect. This is also through analyzing the stress of the chain, the fracture condition, chemical composition, mechanical properties and metallographic structure. And other results.
Then to prevent such problems, on the one hand, the material of the chain should be carburized in the right way. On the other hand, an appropriate heat treatment process should be adopted to eliminate the adverse effects of various unfavorable factors on the chain, thereby reducing The probability of embrittlement
