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Special-shaped steel pipe

A steel pipe and heterosexual technology, which is applied in the field of P-type high-strength heterosexual steel pipes, can solve the problems of low production efficiency and poor workmanship, and achieve the effects of saving materials, ensuring workmanship, and reducing production costs

Inactive Publication Date: 2014-05-14
HUBEI DAYUN AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the technical defects of low production efficiency and poor manufacturability in the flanging of existing rectangular pipes, the present invention proposes a P-type high-strength anisotropic steel pipe

Method used

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Embodiment 1

[0014] Such as figure 2 As shown, a kind of heterosexual steel pipe, the heterosexual steel pipe is an integral structure, its cross-section is P-shaped, the P-shaped is that one side of the rectangular pipe 1 whose main body is hollow is extended vertically outward for 10 cm, and then stretched Flanging is carried out on the out part to form an approximate P shape.

[0015] In order to reduce the process flow and reduce the production cost, the main body of the heterosexual steel pipe is formed by rolling (or stamping); in order to improve the welding quality, the sealing part of the rectangular pipe of the main part (that is, the welding position 3) adopts The contact welding method welds the seal.

[0016] In the present invention, a P-shaped tube is formed by vertically extending one side of the rectangular tube outward and flanging, which can be widely used as a section material for various parts requiring high sealing performance and matching clearance. Especially in ...

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Abstract

The invention provides a special-shaped steel pipe which is of an integral structure. The cross section of the special-shaped steel pipe is P-shaped, the shape similar to a P is formed by outwards and vertically extending and flanging one side of a hollow rectangular pipe as a main body, the special-shaped steel pipe is formed at one step through rolling or punching, and a seal of the rectangular pipe is a high-welding seal. The P-shaped pipe is formed by outwards and vertically extending and flanging one side of the rectangular pipe, and the special-shaped steel pipe serves as a section to be widely applied to various parts higher in requirements on sealability and matching gap. Especially, when the special-shaped steel pipe of the structure is adopted in the process of manufacturing an automobile door frame, welding process can be reduced, materials can be saved, and production cost can be lowered; manufacturability is guaranteed, and production efficiency and product quality are improved.

Description

technical field [0001] The invention relates to the field of profiles, in particular to a P-type high-strength anisotropic steel pipe. Background technique [0002] Most of the existing profiles are rectangular tubes, and some places need to be flanged during use. The basic method is to weld an angle steel or alloy steel strip on a standard rectangular steel tube. When using this method to process the profile: it needs to consume a lot of welding rods, and the weld seam needs to be polished with a grinding wheel after welding, which is time-consuming, laborious, low in efficiency, high in cost, and poor in manufacturability, which affects product quality. Contents of the invention [0003] In order to overcome the technical defects of low production efficiency and poor manufacturability during flanging of existing rectangular pipes, the present invention proposes a P-type high-strength anisotropic steel pipe. [0004] For this reason, the technical solution of the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16S3/00
Inventor 陈志斌
Owner HUBEI DAYUN AUTOMOBILE
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