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An inspection and evaluation method for the quality of copper plating layer of welding wire

A technology of copper plating and welding wire, which is applied in the field of inspection and evaluation of the quality of copper plating of welding wire, can solve problems such as changes in the quality of copper plating, and achieve the effects of stable quality, stable results and avoiding damage.

Active Publication Date: 2019-11-01
SHANDONG GUANGFU GROUP
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Problems solved by technology

[0004] The purpose of the present invention is to provide an inspection and evaluation method for the quality of the copper plating layer of welding wire in view of the above existing problems, so as to solve the problems of copper plating quality change and user applicability in the production line, achieve convenience, stability, and realize timely and accurate guidance of production. Purpose

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  • An inspection and evaluation method for the quality of copper plating layer of welding wire
  • An inspection and evaluation method for the quality of copper plating layer of welding wire

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Embodiment Construction

[0022] The present invention will be described in detail below through specific embodiments.

[0023] 1. Inspection of surface quality of copper plating layer of welding wire

[0024] The color and brightness of the wire surface depends on the roughness and porosity of the drawn and polished surface, and the surface density is also related to the protective effect of the coating on the wire surface. The best surface quality should be basically free of loose pits and copper plating. Continuous one can effectively prevent air and moisture from entering the surface of the steel wire, causing corrosion and peeling; on the other hand, there are some electrolytes in the loose pits, absorbing moisture in the air environment will aggravate the corrosion of the copper plating layer (generate patina) , China Unicom, resulting in problems such as blasting during welding, shedding of the coating, and blockage of the gun head. Therefore, the surface inspection needs to control the size an...

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Abstract

The invention belongs to the technical field of welding wire production, and particularly relates to a testing evaluation method for the welding wire copper plate quality. The testing evaluation method for the welding wire copper plate quality comprises the following steps of 1 testing of the welding wire copper plate quality, 2 testing of combined surface quality and 3 testing of the copper plate thickness. The testing evaluation method combines production and the user using effect, a set of feasible testing schemes and standards are built, and the effects of quality stability and client satisfaction are achieved.

Description

technical field [0001] The invention belongs to the technical field of welding wire production, and in particular relates to a method for inspecting and evaluating the quality of the copper plating layer of welding wire. Background technique [0002] The product standards related to welding wire have clear technical requirements for chemical composition, dimensional accuracy, stiffness and bending performance, but there are no specific requirements for the protection of welding wire surface. There are also bare products on the market that do not need a protective layer, which are only suitable for customers who are ready to use at any time and have a short storage period. Continuous production line companies usually use copper plating protection, which generally has a half-year shelf life. In the early stage of welding wire production, the color and brightness of the copper plating layer fluctuate greatly, and the quality is very unstable. [0003] The quality of the copper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/95G01B11/06G01N1/28G01N1/34G01N1/32
CPCG01B11/0616G01N1/28G01N1/286G01N1/32G01N1/34G01N21/95G01N2001/2873
Inventor 董孟宪孔冠宏孙衍国张晓龙
Owner SHANDONG GUANGFU GROUP
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