Hot Vulcanization Splicing Project
2025-01-15
Case Analysis of Splicing Materials for Conveyor Belt Maintenance
Problem
An American coal mining company uses a conveyor belt with a width of 64 inches (1600 mm) and a speed of 1.6 m/s to transport coal from the mine. During the operation of the conveyor belt, it was subjected to impacts, resulting in uneven coal accumulation in certain areas, causing the belt to run off to one side. Unfortunately, due to the long-term deviation of the company's conveyor belt and being scratched by hard objects, it developed tears and had to stop working.
Solution
We provided the customer with "BAI-OTT" splicing materials (unvulcanized rubber and cover rubber ZJ-FTG and ZJ-STB), hot melt adhesive SA8000, cleaning agent SA3500, tungsten discs, and a vulcanizing press.
We guided the customer step by step on how to splice the belt, such as how to lay the steel plates, how to apply the unvulcanized adhesive (ZJ-FTG) and cover rubber (ZJ-STB), how to use our SA3500 to clean the steel plates, etc.
It is especially important to allow the heating plate to cool naturally or to cool with water after the vulcanization work is completed. However, it is not allowed to pour water on the surface of the heating plate for forced cooling. When the vulcanized belt cools to below 100 degrees, the vulcanizing machine can be removed. During the cooling process, the pressure should still be maintained at around 1Mpa. Repair the interface and side overflow, and check the bonding quality.
Result
Using our materials to layer-bond the belt joints, bonding the joints through heating, pressurizing, and other methods. The joint strength is 80%-90%. This is currently the ideal method. It seals the joints, is not affected by moisture, has a long service life, and operates stably.
After the joints were completed, our products and technology were recognized by the customer, and we were also very pleased.
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