Long copper row continuous moving jet tin plating method and device

Abstract

The process of shifting long copper bar continuously and tin plating with jet flow includes passing the long copper bar through a miniature electroplating bath, and jetting plating solution to the copper bar in high speed upwards with jetting pipes for electroplating the four surfaces of the copper bar in continuous moving. The process has high homogeneity of plating solution and great allowed current density. The present invention has the advantages of low investment, simple operation, capacity of realizing complete plating and local plating, high plating quality, etc.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to a method and equipment for continuous moving jet tin plating of long copper rows. Background technique [0002] In the important industrial fields of electric power, electrician, and electricity, copper bars are widely used as conductive connection carriers in electrical switch engineering industries (such as distribution cabinets, transformers, power transmission and transformation). In order to prevent oxidation and improve conductivity, copper bars (especially In the overlapping parts) must be tin-plated anti-corrosion treatment. At present, for copper bars, tin coating can be achieved in the following three ways: [0003] 1. Tin ironing: The original process is to heat the tin block to a molten state and directly deposit the tin layer on the surface of the copper bar by manual smearing. [0004] The disadvantages of this method are: (1) the loss of tin material is la...

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Problems solved by technology

[0004] The disadvantages of this method are: (1) the loss of tin material is large and the cost is high; (2) the thickness of the tin layer is extremely uneven, and the impurity content of the tin coating is high; (3) the working environment is poor, and the smoke damages the body; (4) labor intensity large, low efficiency

[0006] The disadvantages of this method are: (1) high one-time investment cost; (2) high bath maintenance cost and high energy consumption; (3) the overall plating of ultra-long copper bars cannot be realized due to the influence of the plating tank space

[0008] The disadvantages of this method are: (1) human factors have a great influence on the quality of the coating; (2) the uniformity of the coating is not easy to grasp; (3) especially when long copper bars need to be plated as a whole, it is difficult to ensure the consistency of the coating appearance, often in It is easy to cause secondary pollution during the brush plating process, making the coating yellow and black; (4) high labor intensity and low work rate

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