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9-shaped pipe for supporting

A font-shaped and special-shaped technology, applied in the field of special-shaped square and rectangular pipes, can solve problems such as limited cross-sectional performance, many processing and welding links, and complicated installation processes, and achieve the effect of broadening the scope of use and increasing product varieties

Inactive Publication Date: 2014-12-03
杜伟
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the supporting sub-beams of existing commercial vehicles are designed and manufactured using square rectangular tubes, C-shaped steels, sharp-angled tubes or hot-rolled channel steels. There are many links, low yield, complex installation process, and many industries require to increase the moment of inertia of the section under the condition of unchanged shape. Ordinary profiles cannot meet the development of existing fields, and a profile with a wider range of adaptability is needed to replace it.

Method used

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Embodiment Construction

[0009] 9-shaped tube for special-shaped support, including a whole piece of cold-formed 9-shaped steel plate, there is a welding seam (6) at the butt joint of the steel plate, and the welding form can be selected according to the wall thickness (7) and material of the steel plate. High-frequency continuous welding , submerged arc continuous welding, laser continuous welding or gas shielded continuous welding, characterized in that: the section is 9-shaped, the four corners of the outer contour of the pipe wall are all outer arcs (1), and the radius of the outer arc is the thickness of the steel plate ( 7) 2~4 times; the four corners of the inner contour are all inner arcs (2), and the inner arc radius is 1~2.5 times the steel plate wall thickness (7); the width of the 9-shaped steel plate (9) The range is 40mm~200mm, the range of height (4) is 80mm~400mm, the ratio of width (9) to height (4) is 1:2~1:3.5; the height value of the short side of the closed part (3) is 20mm~200mm; ...

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Abstract

The invention discloses a special-shaped rectangular pipe. The pipe with a function of supporting is applied to commercial vehicles and produced by means of online continuous cold-bending process and single-pipe bending process. The problems of simple structure, small second moment of area, limited section performance, excessive machining and welding procedures, low yield and complexity in installation process of existing normal sections are solved. The pipe comprises a steel plate integrally forming a 9 shape by cold bending, a weld seam (6) is reserved at the butt joint of the steel plate, and the cross section of the steel plate is in the 9 shape. A cold-bending pipe welding set is adopted for continuous roll bending, online welding shaping, online saw cutting, single-plate bending and offline welding shaping of a bending machine.

Description

technical field [0001] The invention relates to a special-shaped steel instead of a square-rectangular pipe, in particular to a special-shaped rectangular-shaped steel used for supporting commercial vehicles produced by a cold-bending on-line continuous process and produced by bending a single piece. Background technique [0002] At present, the supporting sub-beams of existing commercial vehicles are designed and manufactured using square rectangular tubes, C-shaped steels, sharp-angled tubes or hot-rolled channel steels. There are many links, low yield and complex installation process. At the same time, many industries require to increase the moment of inertia of the section without changing the shape. Ordinary profiles cannot meet the development of existing fields. A profile with a wider range of adaptation is needed to replace it. Contents of the invention [0003] In order to make up for the functional deficiencies of ordinary profiles such as small section moment of...

Claims

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Application Information

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IPC IPC(8): F16S3/00
Inventor 杜伟宋宇光
Owner 杜伟
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