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Classification of Conveyor Belt Splices
All conveyors must be connected in a closed loop before operation; therefore, the quality of conveyor belt splices directly affects belt durability and the smooth operation of the conveying process. The common methods for splicing conveyor belts include mechanical splicing, cold-bonding splicing, and hot-vulcanization splicing.
Mechanical Joint Method
In general, this refers to splicing conveyor belts using belt splicing methods. While such methods are convenient and cost-effective, they suffer from low splicing efficiency and a higher susceptibility to damage, which can adversely affect the service life of the conveyor belt. PVC- and PVG-based flame-retardant and antistatic conveyor belts typically employ splicing techniques that fall below Grade 8 in terms of common splicing practices.
Cold Press Head Method
The cold-pressing method involves using a cold-bonding adhesive to join the joints. This joining technique is more efficient and cost-effective than mechanically joining rollers by turning, and it should deliver superior joint performance. However, in practice, because the process parameters are difficult to control and significantly affect the quality of the mix, the resulting joint performance tends to be less consistent.
Hot Vulcanization Joint Method
Practice has demonstrated that hot-vulcanization splicing is an ideal jointing method, offering high splicing efficiency, stable performance, long service life, and ease of operation; however, it also suffers from drawbacks such as a complex process, high cost, and lengthy connection time.
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