Causes of joint cracking in china flame retardant conveyor belts


Release time:

2023-02-07

China flame retardant conveyor belts are made of multi-layer rubber cotton canvas (polyester cotton cloth)

Causes of joint cracking in china flame retardant conveyor belts

China flame retardant conveyor belts are made of multi-layer rubber cotton canvas (polyester cotton cloth), or polyester canvas covered with high temperature resistant or heat resistant rubber, bonded together by high temperature vulcanization, suitable for conveying hot coke, cement, molten metal below 175 °C Slag and hot castings, etc. China flame retardant conveyor belts generally have three joint methods, namely mechanical joints, cold glue joints and heat vulcanized joints.

china flame retardant conveyor belts

The strength of the joint is lower than the strength of the belt itself. When a mechanical joint is applied, the joint strength can only reach 40-50% of the strength of the belt. When china flame retardant conveyor belts are bonded with cold glue, the joint strength can reach 60-70%; if hot vulcanized joints are used, the joint strength of the conveyor belt can reach 80-90% (the joint method is correct, and the joint of the conveyor belt without quality defects The strength of the part is relatively low. If the bonding method is not correct, the strength of the conveyor belt joint will be even lower.

If the knife is cut, the next layer of canvas is damaged when the conveyor belt is polished, the grinding is moderate, the length of the lap is not enough, the number of steps is not enough, the rubber performance of the joint is not good or has been self-sulfurized, excessive grinding, rust, etc., the strength of the joint It will be greatly reduced. When in use, it is easier to show that the conveyor belt joints are disconnected and cracked. If no sealing glue is used, or the direction of the joint is wrong, the conveyor belt joint (surface glue part) will also crack.