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Repair welding method

A repair welding and electrode technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of low production efficiency, difficulty in welding arc ignition, unstable arc combustion, etc., and achieve the effect of improving production efficiency

Active Publication Date: 2020-02-04
齐齐哈尔斯潘塞重工装备有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a repair welding method to solve the problems in the prior art that the welding arc is difficult to start due to the non-waterproof welding rod and the production efficiency is low due to the unstable arc combustion during the welding process.

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Embodiment Construction

[0027] Such as Figure 1 to Figure 8 As shown, a repair welding method is provided according to a specific embodiment of the present invention, and the repair welding method includes the following steps: the welding rod is pretreated to form a welding rod 10 with a waterproof coating; using the welding rod 10 with a waterproof coating to The leakage of the workpiece 20 is repaired by welding.

[0028] With this configuration, the welding rod is pretreated before repairing the workpiece 20. When the welding rod is used to repair the workpiece, the welding rod has a waterproof function, thereby preventing the welding rod from being wet and causing the arc to be extinguished. . As a result, without stopping the supply of kinetic energy, since the welding rod has a waterproof function, the repair welding operation of the workpiece in the water-passing state can be realized, and the production efficiency can be improved.

[0029] In the present invention, in order to realize the ...

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Abstract

The invention provides a repair welding method. The repair welding method comprises the following steps: preprocessing a welding rod to form a welding rod with a waterproof coating; and performing repair welding on a leaking part of workpiece through the welding bar with the waterproof coating. According to the technical scheme, the repair welding method has the advantage of solving the problems of difficult arc striking caused by a non-water-proof welding bar in welding and low production efficiency caused by unstable electric arc burning in welding in the prior art.

Description

technical field [0001] The invention relates to the field of pipeline leakage, in particular to a repair welding method. Background technique [0002] In the prior art, corrosion leakage accidents usually occur in kinetic energy supply pipelines after a long period of use. If the kinetic energy supply is stopped to repair and repair the pipeline or update the pipeline, it will affect the normal production work and daily life. Especially in some cold areas, if the heating area stops heating in winter, it will even cause the pipes to freeze. [0003] However, in the prior art, when the pipeline is in a water-passing condition, the welding rod is used to weld the leak. Since the welding rod is easily wetted by water, the arc is extinguished. Therefore, it is necessary to stop the kinetic energy supply of the pipeline for repair welding. This method greatly affects the production schedule and causes economic losses. Contents of the invention [0004] The invention provides ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/04B23K9/235B23K9/00
CPCB23K9/0052B23K9/048B23K9/235
Inventor 胡永明马清波聂友明黄凤龙陈增有许永辉黄君辉赵娇玉
Owner 齐齐哈尔斯潘塞重工装备有限公司