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Reversed deformation treatment process before welding of H-shaped steel structures

A technology for processing technology and H-shaped steel, which is applied in welding equipment, manufacturing tools, arc welding equipment, etc., to achieve the effects of reducing processing costs, eliminating quality problems, and improving work efficiency

Inactive Publication Date: 2013-03-27
TONGLING FERROUS CONSTR & INSTALLATION STEEL STRUCTURE
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the prior art still has a certain gap with people's expectation on the processing of the deformation problem of H-beam welding.

Method used

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  • Reversed deformation treatment process before welding of H-shaped steel structures

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Embodiment Construction

[0018] The content of the present invention will be described below in conjunction with specific embodiments.

[0019] like figure 1 Shown is a schematic diagram of the H-shaped steel structure of the present invention. The H-shaped steel structure described in the present invention comprises: the lower wing plate 1, the upper wing plate 2 and the web 3, the lower wing plate 1, the upper wing plate 2 and the web plate 3 are all steel plates of a certain size, and are composed of “H” "Type welded. When the lower flange 1, the upper flange 2 and the web 3 are welded, four different fillet welds A, B, C, D are formed. Due to the different welding sequence, the local temperature and degree of deformation of the lower flange 1, upper flange 2 and web 3 are also different during welding, so the final H-shaped steel structure is easily deformed, which is different from the actual requirements. Big difference.

[0020] In order to realize the ideal H-shaped steel structure describ...

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Abstract

The invention discloses a reversed deformation treatment process before the welding of H-shaped steel structures. An H-shaped steel structure after being assembled by using an upper wing plate, a lower wing plate and a web plate is welded into an H shape. The reversed deformation treatment process comprises the following steps: carrying out feeding and local heat treatment on plates; 2, assembling the plates into an H-shaped steel structure; 3, carrying out submerged-arc welding on the H-shaped steel structure. According to the reversed deformation treatment process before the welding of H-shaped steel structures disclosed by the invention, plates are subjected to preheating treatment in advance, so that the quality problem caused by local deformation in the process of welding is eliminated, and operations of collecting and shaping are not required to be performed after welding, thereby greatly improving the operating efficiency and meeting the practical requirements. Compared with the existing flame heating method, the machining cost of the reversed deformation treatment process is reduced by about 90%, therefore, the reversed deformation treatment process is suitable for wide popularization and application, and has remarkable economic benefits.

Description

technical field [0001] The invention relates to an anti-deformation treatment process for an H-shaped steel structure, in particular to an anti-deformation treatment process for an H-shaped steel structure before welding, which is used for processing and manufacturing the H-shaped steel structure. Background technique [0002] H-shaped steel structure, that is, wide-flange I-beam, is a steel structure that is increasingly used in modern building structures, bridge structures and power station construction. It has the characteristics of beautiful structure, economy, good mechanical properties of the section and good stability. Because of its superior structural type and good mechanical properties, it has become one of the main frames of steel structures. H-beams can be divided into hot-rolled H-beams and welded H-beams. Hot-rolled H-shaped steel is widely used in industrial and civil buildings, while welded H-shaped steel is used in some industrial buildings that are inconve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/235
Inventor 张吴友
Owner TONGLING FERROUS CONSTR & INSTALLATION STEEL STRUCTURE
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