Double braided layer high-pressure wear-resistant flexible pipe

Abstract

The invention discloses a double braided layer high-pressure wear-resistant flexible pipe. The double braided layer high-pressure wear-resistant flexible pipe comprises a flexible pipe main body; theflexible pipe main body comprises an inner pipe, a first braided layer, a second braided layer, and a wear-resistant layer successively from inside out; the inner pipe is prepared through extrusion moulding using a single screw extruder; the first braided layer is formed on the external surface of the inner pipe using a braiding machine through braiding; the second braided layer is formed on the external surface of the first braided layer using a braiding machine through braiding; the wear-resistant layer is used for coating the external surface of the second braided layer through extrusion using the single screw extruder. The double braided layer high-pressure wear-resistant flexible pipe is capable of avoiding defects in the prior art, and is prepared through spray coating of an environment protection plastic glue or polyurethane adhesive, so that the structures of the flexible pipe main body between the layers are stable, cracking is not easily caused, and flexible pipe service lifeis prolonged; at the same time, the wear-resistant layer is prepared from thermoplastic polyurethane elastomer rubber, so that the wear resistance, oil resistance, transparency, and elasticity are excellent, halogen free flame resistance is achieved, and environment protection requirements are satisfied; and in addition, the flexible pipe main body is adopted with a high strength polyester yarn braided and coppered steel wire double layer braided structure, so that flexible pipe toughness and pressure resistance are improved.

Description

technical field [0001] The invention relates to the technical field of high-pressure hoses, in particular to a double-braided high-pressure wear-resistant hose. Background technique [0002] The traditional rubber steel wire high pressure hose is made of rubber inner tube, braided with pure steel wire, and the rubber outer layer is vulcanized at high temperature. This hose has cumbersome manufacturing process, low environmental protection standards, short service life, and is easy to be corroded and wear-resistant. And other defects, in view of the performance and material environmental protection defects of the traditional rubber steel wire high-pressure hose, therefore, we invented a double braided high-pressure wear-resistant hose. Contents of the invention [0003] The object of the present invention is to provide a double-braided high-pressure wear-resistant hose to solve the defects of the existing hose such as cumbersome production process, low environmental protect...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a double-braided high-pressure wear-resistant hose to solve the defects of the existing hose such as cumbersome production process, low environmental protection standards, short service life, and easy corrosion and wear resistance.

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