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OM-shaped pipe for supporting

A special-shaped, steel pipe technology, applied in the direction of slender components, building components, etc., can solve the problems of limited section performance, many processing and welding links, complex installation technology, etc., and achieve the effect of broadening the scope of use and increasing product varieties

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

AI Technical Summary

Problems solved by technology

[0002] At present, it is known that the side box frame of the existing commercial vehicle, which plays a supporting role, is designed and manufactured by using square rectangular tube, C-shaped steel, sharp-angled tube or hot-rolled channel steel. It has a simple structure, a small section moment of inertia, and limited section performance. 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 adaptability is needed to replace it.

Method used

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  • OM-shaped pipe for supporting

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Embodiment Construction

[0009] The OM-shaped tube for special-shaped support includes a whole steel plate that is cold-bent into an OM shape, and a welding seam (10) is arranged at the seal of the steel plate. The welding forms include online high-frequency continuous welding, submerged arc continuous welding, laser continuous welding and Gas shielded continuous welding, the welding form is selected according to the thickness of the steel plate (10) and the material. The radius of the steel plate wall thickness (10) is 2~4 times; the four corners of the inner contour of the pipe wall are all inner arcs (2), and the radius of the inner arc (2) is 1~4 times of the steel plate wall thickness (10). 2.5 times; OM-shaped tube width (11) ranges from 40mm to 150mm, height (8) ranges from 140mm to 550mm, and the ratio of width (11) to height (8) is 1:3.5~1:5; the short side of the closed part (3) The height value is 20mm~200mm, and the closing angles are 90°, 90°, 135°, 45°; the range of the short side of the...

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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 an OM shape by cold bending, a weld seam (10) is reserved at the butt joint of the steel plate, and the cross section of the steel plate is in the OM 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 that replaces a rectangular tube, in particular to a special-shaped rectangular tube for supporting commercial vehicles that is produced by a cold-bending on-line continuous process and produced by bending a single piece. Background technique [0002] At present, it is known that the side box frame of the existing commercial vehicle, which plays a supporting role, is designed and manufactured by using square rectangular tube, C-shaped steel, sharp-angled tube or hot-rolled channel steel. It has a simple structure, a small section moment of inertia, and limited section performance. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16S3/00
Inventor 宋宇光杜伟
Owner 宋宇光
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