Hot air vulcanization process of multi-layer winding rubber straight tube with polyester film as coating

Abstract

A hot-air vulcanization process for multi-layer winding rubber straight tubes with polyester film as the coating layer. Polyester film is used as the coating layer of rubber tube vulcanization. During vulcanization, the product quality can be guaranteed without applying vulcanization pressure, reducing It reduces vulcanization energy consumption, saves cost, and can make the vulcanized hose surface smooth and beautiful without impurities. Moreover, this kind of polyester film can be recycled and reused. In the environment where existing resources are becoming more and more scarce, it plays the role of environmental protection and resource saving; It is very good to ensure the safety of production. The rubber hose produced by the invention can be used for the flexible connection of diesel engine pipelines or the flexible connection of water and gas pipelines of equipment such as automobiles and engineering machinery.

Description

technical field [0001] The invention relates to a multi-layer winding hot air vulcanization process of rubber straight pipes, in particular to a multi-layer winding rubber straight pipe hot air vulcanization process with polyester film as the coating layer. Background technique [0002] The traditional multi-layer winding rubber straight pipe is vulcanized by hand-wrapping and then wrapped with water-wrapped cloth. For example, the patentee Liu Jianping’s patents CN2878852Y and CN1302912C disclose rubber pipes made by this production process. The above two patent documents have passed References are incorporated here. This process has the following disadvantages: (1) the water-wrapped cloth will easily cause the air bubbles in the tube blank to escape easily, resulting in defects such as delamination of the inner rubber layer; (2) the rubber tube covered by the water-wrapped cloth is easily separated from The outer layer of rubber is bonded together and it is difficult to r...

AI Technical Summary

Problems solved by technology

[0004] The present invention has been accomplished in view of the above problems, and an object of the present invention is to provide a hot air vulcanization process for a multi-layer winding rubber straight pipe with a polyester film, which solves the problem of the existing multi-layer winding rubber pipe. The defects of large energy consumption and unstable product quality during the vulcanization process are energy-saving, environmentally friendly, and a new process that can obtain good quality stability and high production safety.

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