The development trend of conveyor belt carcass materials

Conveyor belt is a composite product composed of elastomer and reinforced framework material, and is an important functional part of belt conveyor. The development of the conveyor belt is inseparable from the improvement of the performance of the framework material. Its fracture strength, tensile properties, elasticity, rigidity and toughness, dimensional stability, etc. are closely related to the performance of the framework material. Therefore, research on the properties of framework materials is extremely important. This article mainly introduces the development status and trend of carcass materials for conveyor belts from fabric raw materials and organizational structure.


Direction of development


The frame materials of modern textile conveyors have developed rapidly. The continuous development of new fabrics, the improvement of the overall carcass output, and the development of straight warp and straight weft carcass and their deformed carcass are the development direction of my country’s conveyor belt textile carcass.


Optimizing fabric materials


Fiber material modified ordinary nylon and polyester have been widely used in conveyor belts. However, due to the low elastic modulus of nylon, the fatigue resistance and heat shrinkage of ordinary polyester are relatively large, the modification of traditional fabric materials is one of the future development directions of fabric materials The modification of nylon is mainly to improve the strength and dimensional stability by changing the structure of its molecular chain. Improving the elastic modulus of nylon fabrics has always been a concern.


In the previous carcass structure for optimizing the carcass structure of the conveyor belt, the application technology of the carcass as a whole is mature, and the straight warp straight weft structure is at the beginning stage. However, the overall carcass still has large warp and weft threads, and the instability of the straight warp and weft structure in the fabric, which affects the overall performance of the conveyor belt. It requires the continuous development of new framework structures to further reduce the warp and weft yarn bending, enhance the stability of the fabric structure, make new fabric materials easy to use, and ultimately enable the conveyor belt to achieve the purpose of lightweight and high-strength layer reduction.