Aramid rubber canvas fabric structure for high-strength conveyor belts and production process of aramid rubber canvas fabric structure

Abstract

The invention discloses an aramid rubber canvas fabric structure for high-strength conveyor belts and a production process of the aramid rubber canvas fabric structure. The aramid rubber canvas fabric structure comprises warps and wefts, aramid materials are adopted in the warps, at least four warps are paved in the belt length direction, nylon industrial yarns are adopted in the wefts which are crisscrossly paved on upper end faces and lower end faces of the warps, the wefts on upper and lower layers are tightly crisscrossly bonded to the warps by adopting bundling yarns, and a canvas fabric structure is obtained after secondary bath gum dipping; the production process includes single-layer canvas knitting, secondary bath gum dipping and reeling. Single-layer structures of the warps adopting the aramid materials and the weft adopting the nylon materials are knitted through bundling yarns, the high-strength conveyor belts with the strength higher than 2500N / mm are produced after secondary bath gum dipping, mechanical physical properties of the conveyor belts are improved, layer reduction and weight reduction of the conveyor belts are realized during the production process, the conveyor belts are adaptively high strengthened, less layered and lightweight, energy consumption is reduced, the production process is further simplified, and production efficiency is higher.

Description

technical field [0001] The invention relates to a rubber-dipped canvas for a high-strength rubber conveyor belt and a production process thereof, belonging to the technical field of industrial fabrics. Background technique [0002] In recent years, with the increasing demand for high-strength conveyor belts in metallurgy, mining, building materials and other industries, and the further extension of the conveying distance, rubber conveyor belts have put forward higher requirements for the performance indicators of the skeleton material-impregnated canvas: The main reason is that the strength of dipped canvas such as polyester, nylon 6, and nylon 66 cannot meet the requirements of further heavy-duty conveyor belts. In addition, there are serious problems in impact resistance, puncture resistance, tear resistance, and creep elongation resistance. Insufficient performance; aramid is more and more valued as a fiber skeleton material for conveyor belts due to its superior performa...

AI Technical Summary

Problems solved by technology

The number of layers of canvas used should be about 4~6 layers; if the strength of the conveyor belt is further increased, more layers must be used, but the softness of the conveyor belt, the ability to pass through the rollers, the weight, and the difficulty At present, steel wire conveyor belts are generally used instead of fabric reinforced conveyor belts, but the steel wire rope conveyor belts are heavy in weight, and the energy consumption in the transportation process is also increased. After damage, recycling is difficult, and it is not resistant to harsh outdoor damage. Environment, especially the rain will corrode the wire rope

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