Welding method for vertical weld beads of high-altitude thick plates

A welding method and vertical seam technology are applied in the field of vertical seam welding of high-altitude thick plates, which can solve the problems of low efficiency, complicated methods, and inappropriate robot automatic welding, so as to improve production efficiency, reduce serious deformation, and facilitate welding. The effect of quality control

Inactive Publication Date: 2016-12-14
CHINA CONSTR STEEL STRUCTURE CORP LTD
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing thick plate welding method, which are complex, inefficient and unsuitable for automatic robot welding, and provide a high-quality and efficient welding method for high-altitude thick steel plate shear walls

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  • Welding method for vertical weld beads of high-altitude thick plates
  • Welding method for vertical weld beads of high-altitude thick plates
  • Welding method for vertical weld beads of high-altitude thick plates

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] A method for welding a vertical seam of a high-altitude thick plate, comprising the following steps:

[0033] A. Splice the thick plate 1 into a double-sided V-shaped groove (such as figure 1 shown);

[0034] B. Bottom welding: add a liner 3 on the back of the groove (such as figure 2 shown), and then carry out single-arc welding on the front side;

[0035] C. Filling welding: Double-sided double-arc symmetrical welding is used on the front and back grooves.

[0036] Specifically, in step A, further use horse board 2 to locate on the back of the groove (such as figure 1 Shown), the groove in the middle of the horse plate 2 corresponds to the bevel. In step B, the liner 3 can be spliced ​​into a belt and pasted on the back of the groove...

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Abstract

The invention belongs to the technical field of welding and particularly relates to a welding method for vertical weld beads of high-altitude thick plates. The welding method comprises the following steps: A, splicing the thick plates into double-sided V-shaped grooves; B, backing welding: additionally arranging a pad on the back side of the groove, and then performing front-side single arc welding; and C, filling welding: performing double-sided double arc symmetrical welding on the grooves in the front side and the back side. By means of the method, the defects that an existing welding method for the high-altitude thick plates is complex and low in efficiency are overcome, the production efficiency of high-altitude welding is greatly improved, and the problems that the thick plates are serious in deformation during welding and are difficult to correct after deformation are solved.

Description

technical field [0001] The invention belongs to the field of welding technology, and more specifically relates to a method for welding vertical seams of high-altitude thick plates. Background technique [0002] Steel plate shear wall is one of the important components of building steel structure, which is characterized by large cross-section and long weld. At present, the welding methods used in the vertical welds of thick steel plate walls are mainly manual welding and semi-automatic welding. The traditional welding method is: front preheating → front welding → reverse gouging → grinding groove → magnetic particle flaw detection → reverse preheating → reverse welding. The welding stress generated by thick plate welding is large, which makes the welding workpiece prone to large stress deformation, and the correction work after high-altitude deformation is very difficult. In the actual welding process on site, in order to reduce welding deformation, rigid constraints such a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/02B23K9/235B23K9/095B23K101/16
CPCB23K9/02B23K9/095B23K9/235B23K2101/16
Inventor 刘曙王朝阳吕黄兵杨高阳李宁宁朱强陈博甘霖
Owner CHINA CONSTR STEEL STRUCTURE CORP LTD
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