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Hole plugging welding process

A welding process and hole plugging technology, applied in welding equipment, welding accessories, manufacturing tools, etc., can solve problems such as plugging bolt holes, reduce post-weld stress, facilitate arc ignition, and improve surfacing welding quality and efficiency Effect

Active Publication Date: 2021-02-05
上海宝冶工程技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no effective means in the prior art to completely block the wrongly positioned bolt holes

Method used

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  • Hole plugging welding process
  • Hole plugging welding process
  • Hole plugging welding process

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Experimental program
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Embodiment Construction

[0029]Attached belowFigure 1-3And specific examples further illustrate the present invention.

[0030]Such asfigure 1 As shown, a hole plugging welding process includes the following steps:

[0031]S1, referring to the hole diameter of the bolt hole 1a at the staggered position, process the tooling block 2 made of conductive metal so that the diameter of the cylindrical part of the tooling block 2 inserted into the bolt hole 1a is smaller than the diameter of the bolt hole 1a by 1-2mm, And make the tooling block 2 have a limit flange;

[0032]S2. Grind the bolt holes 1a to a smooth degree, and at the same time clean the two plate surfaces of the steel plate 1 to define the two plate surfaces of the steel plate 1 as the first plate surface 1b and the second plate surface 1c;

[0033]S3. Preheat the steel plate 1, the preheating temperature is 100℃-150℃;

[0034]S4. Level the steel plate 1 so that the flatness of the steel plate 1 meets the surfacing requirements;

[0035]S5. Insert the cylindrical par...

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PUM

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Abstract

The invention relates to a hole plugging welding process in the technical field of welding. A tool plugging block (red copper block) is mainly adopted for arc striking for welding, so that molten welding fluid can be charged into a bolt hole to form a first weld joint, then the tool plugging block is pulled out, then the rest part of the bolt hole is overlaid on the basis of the first weld joint,the bolt hole can be completely subjected to overlaying, and the overlaying quality is powerfully guaranteed.

Description

Technical field[0001]The present invention relates to the technical field of welding, and specifically, is a method for blocking wrongly opened bolt holes by means of overlay welding.Background technique[0002]In the production of steel structures, it is often necessary to open several bolt holes for connection. Due to the large number of bolt holes, it is inevitable that there will be wrong bolt holes. In order to ensure the strength of the structure, the wrong bolt holes need to be blocked. However, there is no effective method in the prior art to completely block the wrongly located bolt holes.Summary of the invention[0003]The purpose of the present invention is to provide a hole plugging welding process, which can completely surfacing the bolt holes with the wrong position, so that the bolt holes can be reopened correctly later.[0004]The purpose of the present invention is achieved as follows: a hole plugging welding process includes the following steps:[0005]S1. Refer to the hol...

Claims

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Application Information

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IPC IPC(8): B23K9/235B23K9/04B23K9/32
CPCB23K9/235B23K9/04B23K9/32
Inventor 杨天君方国喜裴乐文师奋博阮爱明黄建华刘寒松张凯
Owner 上海宝冶工程技术有限公司