A semi-automatic liner-free penetration welding process for steel box columns

A penetration welding and semi-automatic technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve problems such as unstable quality and low welding efficiency, and achieve the effects of reducing production costs, improving work efficiency, and improving assembly and welding efficiency

Active Publication Date: 2018-08-31
HUBEI XINSUO CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low welding efficiency and unstable quality in the traditional welding process, the present invention provides a semi-automatic liner-free penetration of steel box columns with high assembly accuracy, high ultrasonic flaw detection pass rate, high welding efficiency and stable welding quality. welding process

Method used

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  • A semi-automatic liner-free penetration welding process for steel box columns
  • A semi-automatic liner-free penetration welding process for steel box columns
  • A semi-automatic liner-free penetration welding process for steel box columns

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A semi-automatic liner-free penetration welding process for a steel box column. The steel box column 13 is a frame-shaped structure formed by two webs 1 and two wing plates 2 perpendicular to each other, wherein the web 1 and the wing 2 The length is 3m, and the thickness is 30mm. The welding process of the steel box column 13 is as follows:

[0032] Groove preparation steps before welding: using the flame cutting process, two groove surfaces A3 without blunt edges are symmetrically prepared on both sides of the web 1, and the angle between the groove surface A3 and the left and right side walls of the web 1 α4 is 30°, and two groove surfaces B5 are symmetrically prepared on both sides of the wing plate 2, the angle β6 between the groove surface B5 and the upper and lower surface of the wing plate 2 is 20°, the groove surface A3 and the groove surface B5 The surface uses an angle grinder to remove the oxide layer produced by flame cutting;

[0033] Assembly steps befor...

Embodiment 2

[0040] A semi-automatic liner-free penetration welding process for a steel box column. The steel box column 13 is a frame-shaped structure formed by two webs 1 and two wing plates 2 perpendicular to each other, wherein the web 1 and the wing 2 The length is 10m, and the thickness is 50mm. The welding process of the steel box column 13 is as follows:

[0041] Groove preparation steps before welding: using the flame cutting process, two groove surfaces A3 without blunt edges are symmetrically prepared on both sides of the web 1, and the angle between the groove surface A3 and the left and right side walls of the web 1 α4 is 25°, and two groove surfaces B5 are symmetrically prepared on both sides of the flange 2, the angle β6 between the groove surface B5 and the upper and lower surface of the flange 2 is 15°, the groove surface A3 and the groove surface B5 The surface uses an angle grinder to remove the oxide layer produced by flame cutting;

[0042] Assembly steps before weldi...

Embodiment 3

[0048] A semi-automatic liner-free penetration welding process for a steel box column. The steel box column 13 is a frame-shaped structure formed by two webs 1 and two wing plates 2 perpendicular to each other, wherein the web 1 and the wing 2 The length is 18m, and the thickness is 80mm. The welding process of the steel box column 13 is as follows:

[0049] Groove preparation steps before welding: using the flame cutting process, two groove surfaces A3 without blunt edges are symmetrically prepared on both sides of the web 1, and the angle between the groove surface A3 and the left and right side walls of the web 1 α4 is 20°, and two groove surfaces B5 are symmetrically prepared on both sides of the wing plate 2. The angle β6 between the groove surface B5 and the upper and lower surface of the wing plate is 10°, and the surface of the groove surface A3 and the groove surface B5 Use an angle grinder to remove the oxide layer produced by flame cutting;

[0050] Assembly steps ...

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Abstract

The invention relates to the field of welding technologies, in particular to a semi-automatic gasket-free penetration welding technology for a steel box column. The steel box column is of a frame-shaped structure formed by welding two webs and two wing plates in a mutually perpendicular mode. The welding technology of the frame-shaped structure at least comprises the steps of groove preparing before welding, wherein two groove surfaces A are symmetrically prepared at the ends of the two sides of each web, two groove surfaces B are symmetrically prepared at the ends of the two sides of each wing plate, and V-shaped grooves are formed through the groove surfaces A and the groove surfaces B; assembling before welding, wherein the steel box column is assembled by sequentially adopting the processes of web installing, process partition plate partitioning, wing plate installing, tool membrane platform fixture clamping and web covering; main welding seam welding, wherein preparation of the steel box column is completed by mainly adopting bottoming, channel filling and cover surface welding in sequence. Compared with a traditional technology, the assembly precision is improved, and the one-time ultrasonic flaw detection qualified rate is increased; meanwhile, due to the fact that parameterized welding is adopted by a welding trolley, the welding stability is improved, and the technology has a good application value.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a semi-automatic liner-free penetration welding technology for steel box columns. Background technique [0002] Steel box column is a heavy-duty steel structure, which is mainly composed of two large webs and two wing plates assembled vertically to each other, and is widely used in high-rise steel structure buildings. With the continuous improvement of the internal quality requirements of steel structures, traditional welding methods have become a bottleneck in the development of heavy steel structures such as steel box columns in terms of production efficiency and quality control, mainly reflected in: [0003] 1. In the traditional welding process, the penetration seam of the main weld bead of the web and the flange must be welded with a steel liner. The single-sided welding of this welding method can only be formed on one side, and the ultrasonic detection of the root of the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/16B23K9/18B23K33/00B23K37/04
CPCB23K9/16B23K9/18B23K33/004B23K37/0435
Inventor 李超群董纯孝陈安源
Owner HUBEI XINSUO CONSTR
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