Novel extrusion type large ventilation pipe

Abstract

The invention discloses a novel extrusion type large ventilation pipe. The novel extrusion type large ventilation pipe comprises a fluororubber inner layer, a nylon layer, a foaming layer and an anti-abrasion layer; the nylon layer is arranged outside the rubber inner layer; the foaming layer is arranged outside the nylon layer; and the anti-abrasion layer is arranged outside the foaming layer. The inner diameter of the ventilation pipe is 100-150 mm. By sequentially arranging the fluororubber inner layer, the nylon layer, the foaming layer and the anti-abrasion layer, the heat preserving performance of the ventilation pipe can be enhanced through the foaming layer on the basis of guaranteeing the mechanical strength of the ventilation pipe, and influences of the outside temperature are lowered; and due to the arrangement of the anti-abrasion layer, mutual friction between the ventilation pipe and other automobile parts can be enhanced, and the abrasion probability is lowered. The novel extrusion type large ventilation pipe is simple in structure, convenient to use, high in mechanical strength, safe in use and smooth in ventilation.

Description

technical field [0001] The invention relates to the technical field of auto parts, and more specifically relates to a novel extruded large air pipe. Background technique [0002] With the increasing demand for automobiles and the increasing number of automobiles, people pay more and more attention to issues such as environmental protection and energy conservation. In order to meet environmental protection requirements and reduce emissions, the country has formulated relevant emission standards to strictly limit emissions. . As an automobile ventilation accessory, the vent pipe occupies an important position in the auto parts. The existing vent pipe has a limited inner diameter, and it is difficult to meet the use standard only by simple extrusion molding, and its service life is limited. [0003] Therefore, due to the above-mentioned technical defects in the prior art, it is a technical problem to be solved urgently by those skilled in the art. Contents of the invention ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of extruded large-scale ventilation pipe, which aims to solve the problems of small inner diameter and short service life of the ventilation pipe products in the prior art

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