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Chemical copper plating solution of surface of zinc alloy and copper plating process of surface of zinc alloy

A technology of chemical copper plating and surface chemistry, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problems of low pH value of copper plating solution, unsuitable for zinc alloy, zinc alloy corrosion, etc. The effect of low cost, high stability and environmental protection

Active Publication Date: 2012-03-28
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve this problem, some formaldehyde-free electroless copper plating solutions have been developed, however, most of the conventional formaldehyde-free electroless copper plating solutions have poor stability due to their high reactivity and will decompose quickly when used
In addition, the electroless copper plating process that has been developed is not suitable for zinc alloy bottom copper plating due to the low pH value of the copper plating solution, which is easy to cause zinc alloy corrosion.

Method used

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  • Chemical copper plating solution of surface of zinc alloy and copper plating process of surface of zinc alloy
  • Chemical copper plating solution of surface of zinc alloy and copper plating process of surface of zinc alloy
  • Chemical copper plating solution of surface of zinc alloy and copper plating process of surface of zinc alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In this embodiment, the zinc alloy sample is a zinc alloy zipper.

[0017] The electroless copper plating solution on the surface of zinc alloy zipper mainly includes the following components:

[0018]

[0019] The specific process of electroless copper plating on the surface of the zinc alloy zipper using the above electroless copper plating solution is as follows: (1) Ultrasonic degreasing is performed on the zinc alloy zipper in the working tank. The composition and working conditions of the degreasing solution are as follows:

[0020]

[0021] (2) Wash the zinc alloy zipper after the ultrasonic degreasing treatment in step (1) first with hot water to prevent degreasing liquid remaining on the surface of the zipper, and then wash it with cold water.

[0022] (3) Carry out acid pickling activation to the zinc alloy zipper after step (2) treatment, the pickling solution composition and working condition are as follows:

[0023]

[0024] After the pickling act...

Embodiment 2

[0029] In this embodiment, the zinc alloy sample is a zinc alloy hardware tool.

[0030] The electroless copper plating solution on the surface of zinc alloy hardware tools mainly includes the following components:

[0031]

[0032] The specific process of electroless copper plating on the surface of zinc alloy hardware tools using the above electroless copper plating solution is as follows:

[0033] (1) Ultrasonic degreasing is performed on zinc alloy hardware tools in the working tank, and the composition and working conditions of the degreasing liquid are the same as those in Example 1.

[0034] (2) Wash the zinc alloy hardware tools after the ultrasonic degreasing treatment in step (1) with hot water first to prevent degreasing liquid remaining on the surface of the zipper, and then wash with cold water.

[0035] (3) The zinc alloy hardware tool treated in step (2) is pickled and activated. The composition and working conditions of the pickling solution are the same as...

Embodiment 3

[0040] In this embodiment, the zinc alloy sample is a zinc alloy part.

[0041] The electroless copper plating solution on the surface of zinc alloy parts mainly includes the following components:

[0042]

[0043] Use above-mentioned electroless copper plating solution to carry out the specific technological process of electroless copper plating on the surface of zinc alloy parts as follows:

[0044] (1) Ultrasonic degreasing is performed on the zinc alloy parts in the working tank, and the composition and working conditions of the degreasing liquid are the same as those in Example 1.

[0045] (2) Wash the zinc alloy parts after the ultrasonic degreasing treatment in step (1) with hot water first to prevent degreasing liquid remaining on the surface of the parts, and then wash with cold water.

[0046] (3) Pickling and activating the zinc alloy parts treated in step (2), the composition and working conditions of the pickling solution are the same as those in Example 1, af...

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Abstract

The invention discloses a chemical copper plating solution of the surface of zinc alloy and a copper plating process of the surface of the zinc alloy, and belongs to an electroless treatment technology of the surface of the zinc alloy. The chemical copper plating solution comprises 5 to 7g / L blue vitriol, 30 to 70g / L complexing agents, 90 to 120g / L sodium hydroxide, 4 to 10g / L sodium hypophosphite, 90 to 110mg / L 2, 2'-bipyidine and 10 to 20mg / L potassium ferrocyanide, and is a chemical copper plating solution which does not contain compositions such as formaldehyde, acetaldehyde, and the like which are great dangerous for human bodies, has high stability, and is environment-friendly, steady and practical. Besides, the chemical copper plating process of the surface of the zinc alloy, which is provided by the invention, comprises the working procedures of oil removal, activation, chemical plating, and the like, is simple and environment-friendly, is easy to realize, overcomes the problem that chemical copper plating of the zinc alloy is difficult to start, is an environment-friendly, economical and practical chemical copper plating process, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of zinc alloy surface treatment, in particular to electroless copper plating on the surface of zinc alloy. Background technique [0002] Zinc alloy is an alloy product with rich domestic reserves and lower price than copper alloy. It has the advantages of low melting point, high mechanical strength, good ductility, and easy casting and cutting. However, zinc alloys are not resistant to corrosion, and the surface is prone to oxidation in the environment, which affects the appearance, and will affect other properties as the corrosion time prolongs. Therefore, zinc alloys require surface protection during application. Generally, a layer of copper is electroplated on the surface of the zinc alloy substrate first, and then on the basis of the copper coating, a coating that is both beautiful and protective is obtained by dyeing, tinning, nickel plating and other methods. In practical application, various coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/40
Inventor 宋振纶姜建军吴浩杰
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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