Repair method of soldering part and device thereof

A technology for parts and welding torches, applied in the field of repairing and installation of welded parts, can solve the problems of scrapped parts, damage to the body metal, low efficiency of manual grinding, etc., and achieve the effects of less heat generation, wider heat-affected zone, and improved success rate of repairing

Inactive Publication Date: 2008-01-23
刘学忠
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Problems solved by technology

[0004] However, because these products usually do not have special welding rework process equipment, traditionally they still follow MIG shielded welding habitually, so in the process of rework, even if the rework welding specification parameters are set higher than the official rework welding specification parameters It should be small, but it still cannot prevent the molten wire metal from being ex

Method used

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  • Repair method of soldering part and device thereof
  • Repair method of soldering part and device thereof
  • Repair method of soldering part and device thereof

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Embodiment Construction

[0027] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0028] The following is an example to illustrate the present invention for the rework of the Strut automobile shock absorber.

[0029] The welding assembly of Strut automobile shock absorber is shown in attached drawing 1. It is mainly composed of liquid storage cylinder A, spring plate B, bottom cover C, ear pieces (not shown in the figure), etc. The annular angle between the liquid storage cylinder and the bottom cover is Weld D is difficult with CO 2 Arc method repair, a little careless, then the height of the annular weld exceeds the metal of the liquid storage cylinder body and is scrapped.

[0030] Considering that the scrapping of the Strut shock absorber product assembly is mostly due to unrepaired air holes or incomplete fusion at the ...

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Abstract

The invention discloses a repairing method of welding component, which is according to that: the defect district zone achieved by welding line air tightness test uses non-smelting inert gases to protecting arc welding to welding line to proceed the second time heating smelting, uses the second time solidifying to eliminate welding line pore/ non fusion defect. The invention also discloses the repairing device used in the repairing method. The invention can adjust the needed data according to various situation of the repairing component currently, which can improve the repairing mission success rate of the component.

Description

technical field [0001] The invention relates to a repair method and device for steel structure welded parts, in particular to a repair method for weld pores / unfused defects of low-carbon steel cylinder pressure vessel parts and a device used in the method. Background technique [0002] Low-carbon steel cylinder pressure vessel products, such as automobile shock absorbers, hybrid airbags, inflatable springs, weld porosity / lack of fusion is one of the main defects of automatic welding. How to eliminate the pores / incomplete fusion of the fully automatic welding seam from the preparation of the welding process plays an important role in ensuring the welding quality. At present, the following aspects are mainly used to ensure the welding quality: choose high-purity carbon dioxide and argon to form a mixed gas, Prevent water from mixing in and form pores; prevent gas supply pipelines and welding nozzles from being blocked, and gas supply is not smooth, resulting in poor protecti...

Claims

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Application Information

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IPC IPC(8): B23K9/167B23K9/095B23K9/28B23K35/32B23K35/38
Inventor 刘学忠
Owner 刘学忠
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