Novel corrugated pipe for automobile and manufacturing process thereof

Abstract

The invention relates to a novel corrugated pipe for an automobile and a manufacturing process thereof. The novel corrugated pipe for the automobile comprises a metal corrugated pipe body with two straight edge sections at two ends, wherein a metal winding pipe is embedded in the inner wall of the metal corrugated pipe body; and a fish pattern net uniformly covers the outside of the metal corrugated pipe body. The novel corrugated pipe for the automobile has the advantages of high flexibility, heat-insulation performance, corrosion-resistant performance, good sealing performance and long service life. A main body corrugated pipe and the winding pipe have good high-temperature-resistant and corrosion-resistant performance; the fish pattern net, a Z-shaped outer ring and a joint break through the process scheme that a traditional corrugated pipe carbon steel workpiece joint for a commercial vehicle needs paint spraying; work procedures of joint phosphorization, paint spraying, salt spraytests and the like are omitted; the production and manufacturing cost is reduced; and the problems that the joint gets rusty because of paint falling in the use process by a user, and the appearancequality is influenced are solved. The metal corrugated pipe, the fish pattern net and the metal winding pipe adopt special assembly processes; a product is enabled to have a certain telescopic allowance; the installation state of the product is also controlled; the fracture of the product caused by excessive deformation is effectively prevented; and the service life of the product is prolonged.

Description

Technical field: [0001] The invention relates to a novel vehicle bellows and a manufacturing process thereof, and belongs to the technical field of flexible connection of exhaust systems of commercial vehicles. Background technique: [0002] With the gradual improvement of automobile emission standards, higher technical requirements are put forward for the use of exhaust metal hoses in automobile exhaust systems: effectively reduce the damage caused by engine vibration to the entire exhaust system, optimize system layout, and extend the system The service life also needs to have functions such as heat preservation and high flexibility. At this stage, such manufacturers at home and abroad use "U-shaped" bellows, spiral pipes, "ASS", "Triple S" winding pipes and other structures, and none of them can Fully meet the requirements of the new standard. Invention content: [0003] In view of the above problems, the present invention proposes a new type of automotive bellows and ...

AI Technical Summary

Problems solved by technology

[0002] With the gradual improvement of automobile emission standards, higher technical requirements are put forward for the use of exhaust metal hoses in automobile exhaust systems: effectively reduce the damage caused by engine vibration to the entire exhaust system, optimize system layout, and extend the system The service life also needs to have functions such as heat preservation and high flexibility. At this stage, such manufacturers at home and abroad use "U-shaped" bellows, spiral pipes, "ASS", "Triple S" winding pipes and other structures, and none of them can Fully meet the requirements of the new standard

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