Testing evaluation method for welding wire copper plate quality
A technology of copper plating layer and welding wire, which is applied in the field of inspection and evaluation of the quality of copper plating layer of welding wire, can solve problems such as changes in copper plating quality, and achieve the effects of stable quality, simple operation, and stable results
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[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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