A Method for Improving the Quality Consistency of Electric Contact Welding

A technology of welding quality and electrical contacts, applied in welding equipment, metal processing equipment, manufacturing tools, etc., to achieve the effect of different conditions, simple operation, and significant economic benefits
CN106624238BActive Publication Date: 2019-01-08ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2019-01-08

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Abstract

The invention relates to the technical field of welding and aims at providing a method for improving electric contact welding quality consistency. The method comprises the following steps: carrying out acid pickling for removing surface impurities and surface oxide layers, carrying out heat treatment for removing residual organic matters; carrying out ball grinding and polishing on electric contacts subjected to heat treatment, then cleaning with purified water, and drying; carrying out deburring treatment on the edge of a welding surface of each electric contact; placing the treated electric contacts onto welding equipment, and carrying out welding operation, to obtain an electric contact component finished product. Compared with the prior art, the method provided by the invention has the advantages that the deburring treatment on the edge of the welding surface is added, and the condition that the welding surface is rugged with concave and convex parts is reduced, so that shear strength of the welded electric contacts is generally improved, proportion of components with high shear strength after being welded is obviously increased, and welding quality consistency of the electric contact components in different batches is obviously improved; meanwhile, the operation is simple, and different condition demands can be better met, so that the method has obvious economic benefit.
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Description

technical field

[0001] The invention belongs to the field of welding technology, and in particular relates to a new method for improving the consistency of welding quality of electric contacts. Background technique

[0002] Induction brazing is a method that uses the Joule effect of the eddy current formed in the workpiece by the alternating magnetic field generated by the inductor to heat the workpiece to melt the solder to achieve brazing.

[0003] The quality of the welding effect has a very important direct relationship with the on-off ability of the electric contact, arc burnout and service life, and the reliability of the electrical operation. Without reliable welding quality, no matter how good the contact material is, it will not be able to play its role. out of its excellent performance. However, in the actual production process, due to the influence of factors such as welding process parameters, silver spot welding surface roughness, and paste volume, it brings ce...

Claims

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