Why are conveyor belt joints easy to crack?

November 9, 2022

The strength of the conveyor belt joint is lower than that of the normal belt body. Generally, when mechanically connected, the joint strength can only reach 50% to 70% of the strength of the belt body (new type buckle). The quality of the cold glue method is compared. In Hershey, the joint strength can reach 60% to 75%, and the hot glue joint strength can reach 80% to 90% or more (the joint method is correct, no quality stupid defects).

Because the strength of the joint is relatively low, if the bonding method is not correct, the strength of the joint will be even lower, such as slitting, damage to the lower layer of cloth during grinding, excessive grinding, insufficient lap length, and number of steps If it is not enough, the rubber used in the rubber joint has poor performance or has failed self-sulfurization, the wire rope is over-polished, the steel wire is rusted, etc., the strength of the joint will be greatly reduced, and the joint will easily be disconnected during use.

In addition, if the conveyor belt does not use sealing glue, or the direction of the glue joint is wrong, the joint part is prone to cracking (surface glue part).