Steel wire electrochemical copper plating process

A technology of steel wire and copper plating, applied in the direction of metal material coating process, etc., can solve the problems of toxicity and environmental hazards for workers, and achieve the effects of increasing electrical conductivity, alleviating excessive thickness of plating layer, and high plating efficiency

Pending Publication Date: 2021-02-26
中钢集团郑州金属制品研究院股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional copper plating method mostly uses cyanide solution for copper plating. Because cyanide itself and its by-products are quite toxic, it will cause great harm to workers and the environment. This traditional copper plating method is gradually being abandoned by people. use

Method used

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  • Steel wire electrochemical copper plating process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of steel wire electrochemical copper plating process of embodiment 1 is realized through the following steps:

[0023] A. Alkali cleaning: Make a steel wire with a diameter of 30mm pass through an alkali solution at 80°C at a speed of 60m / min, and combine it with 6A / dm 2 The current density electrolytically cleans the oil stains on the steel wire in the process of packaging, transportation, etc., and then removes the impurities on the surface of the steel wire; the alkaline solution is made by mixing the following components: Na 2 CO 3 40g / L, NaOH 80g / L, NaOH 2 SiO 3 8g / L, conductive agent 16g / L;

[0024] B. Pickling: The steel wire after alkali washing passes through the acid solution at 95°C at a speed of 60m / min, and is combined with 9.5A / dm 2 The current density is high, and the straight-forward non-contact cathode and anode alternate electrolytic pickling is used to neutralize the residual lye on the surface of the steel wire, further remove the corrosio...

Embodiment 2

[0033] A kind of steel wire electrochemical copper plating process of embodiment two is realized through the following steps:

[0034] A. Alkali cleaning: Make a steel wire with a diameter of 45mm pass through an alkaline solution at 95°C at a speed of 50m / min, and mix with 7.5A / dm 2 The current density electrolytically cleans the oil stains on the steel wire in the process of packaging, transportation, etc., and then removes the impurities on the surface of the steel wire; the alkaline solution is made by mixing the following components: Na 2 CO 3 30g / L, NaOH100g / L, NaOH 2 SiO 3 9g / L, conductive agent 20g / L;

[0035] B. Pickling: The steel wire after alkali washing passes through the acid solution at 80°C at a speed of 50m / min, and is combined with 7.5A / dm 2 The current density is high, and the straight-forward non-contact cathode and anode alternate electrolytic pickling is used to neutralize the residual lye on the surface of the steel wire, further remove the corrosion...

Embodiment 3

[0044] A kind of steel wire electrochemical copper plating process of embodiment three is realized through the following steps:

[0045] A. Alkali cleaning: Make the steel wire with a diameter of 60mm pass through the alkali solution at 85°C at a speed of 30m / min, and electrolytically clean the oil stains on the steel wire during packaging and transportation with a current density of 9.5A / dm2, and then remove the surface of the steel wire impurities; the alkaline solution is made by mixing the following components: Na 2 CO 3 35g / L, NaOH 90g / L, NaOH 2 SiO 3 10g / L, conductive agent 24g / L;

[0046] B. Pickling: The steel wire after alkali washing passes through the acid solution at 85°C at a speed of 30m / min, and is combined with 6A / dm 2 The current density is high, and the straight-forward non-contact cathode and anode alternate electrolytic pickling is used to neutralize the residual lye on the surface of the steel wire, further remove the corrosion spots on the surface of ...

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Abstract

The invention discloses a steel wire electrochemical copper plating process, and relates to the technical field of steel wire processing. The process is realized through the following steps: alkali washing, acid washing, water washing, electrochemical copper plating and post-plating treatment. By means of the process, a uniform, compact, flat, smooth and clean copper plating layer can be smoothlygenerated on the surface of a steel wire, and the process has the advantages of being high in electroplating efficiency, low in cost, simple in process and safe and non-toxic in plating solution.

Description

technical field [0001] The invention relates to the technical field of steel wire processing, and more specifically relates to a steel wire electrochemical copper plating process. Background technique [0002] In the steel wire production process, the copper layer is the lubricating layer in the steel wire drawing process, and the thickness and bonding force of the copper plating layer directly affect the processing quality of the wire rod. The electrochemical copper plating process is a process in which a chemical solution is electrolyzed to react with the target product, so that a layer of copper plating is evenly attached to the surface of the target product. The traditional copper plating method mostly uses cyanide solution for copper plating. Because cyanide itself and its by-products are quite toxic, it will cause great harm to workers and the environment. This traditional copper plating method is gradually being abandoned by people. use. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/38C25D7/06C25D5/36C25F1/06C25D5/48C23C22/00
CPCC25D3/38C25D7/0607C25D5/36C25F1/06C25D5/48C23C22/00
Inventor 岳洋孙克强李居强
Owner 中钢集团郑州金属制品研究院股份有限公司
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