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A kind of zinc alloy electroless copper plating liquid and application

A technology of electroless copper plating and copper plating solution, which is applied in the direction of liquid chemical plating, metal material coating process, coating, etc., can solve the problems of human body harming the environment, poor plating stability, complicated process, etc., to reduce pollution, The effect of low cost and simple process

Active Publication Date: 2019-01-29
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional zinc alloy electroless copper plating uses cyanide compounds or formaldehyde as reducing agents, which is harmful to the human body and pollutes the environment
The zinc alloy electroless copper plating process that has been developed at present usually requires a series of pretreatments on the zinc alloy, namely: degreasing, pickling, activation, etc. The process is complicated and the stability of the coating is poor.

Method used

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  • A kind of zinc alloy electroless copper plating liquid and application
  • A kind of zinc alloy electroless copper plating liquid and application
  • A kind of zinc alloy electroless copper plating liquid and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this embodiment, the zinc alloy sample is a cold-rolled zinc-copper-titanium deformed zinc plate.

[0031] The degreasing solution of cold-rolled zinc-copper-titanium deformed zinc sheet mainly includes the following components:

[0032] Na 2 CO 3 5g / L

[0033] Electroless copper plating solution mainly includes the following components:

[0034]

[0035]

[0036] Use above-mentioned electroless copper plating liquid to carry out the specific technological process of electroless copper plating to cold-rolled zinc-copper-titanium alloy as follows:

[0037] Degreasing: Put zinc copper titanium deformed zinc plate into Na 2 CO 3 In the solution, the temperature is room temperature, the degreasing time is 4min, and washed with water.

[0038] Copper plating: place the zinc-copper-titanium deformed zinc plate treated in the above steps into the above electroless copper plating solution for surface copper plating, the temperature is room temperature, and the...

Embodiment 2

[0041] In this embodiment, the zinc alloy sample is an extruded zinc-aluminum alloy tube.

[0042] The degreasing solution for extruded zinc-aluminum alloy pipe mainly includes the following components:

[0043] Na 2 CO 3 6g / L

[0044] Electroless copper plating solution mainly includes the following components:

[0045]

[0046] The specific technological process for electroless copper plating of extruded zinc-aluminum alloy pipes using the above electroless copper plating solution is as follows:

[0047] Degreasing: Put the extruded zinc-aluminum alloy tube into Na 2 CO 3 In the solution, the temperature is room temperature, the degreasing time is 5min, and washed with water.

[0048] Copper plating: place the zinc-aluminum alloy tube treated in the above steps into the above electroless copper plating solution for surface copper plating, the temperature is room temperature, and the copper plating time is 50 minutes. Wash, tumble dry.

[0049] The surface of th...

Embodiment 3

[0051] In this embodiment, the zinc alloy sample is a cold-rolled zinc-copper-titanium deformed zinc plate.

[0052] The degreasing solution of cold-rolled zinc-copper-titanium deformed zinc sheet mainly includes the following components:

[0053] Na 2 CO 3 5g / L

[0054] Electroless copper plating solution mainly includes the following components:

[0055]

[0056] Use above-mentioned electroless copper plating liquid to carry out the specific technological process of electroless copper plating to cold-rolled zinc-copper-titanium alloy as follows:

[0057] Degreasing: Put zinc copper titanium deformed zinc plate into Na 2 CO 3 In the solution, the temperature is room temperature, the degreasing time is 4min, and washed with water.

[0058] Copper plating: place the zinc-copper-titanium deformed zinc plate treated in the above steps into the above electroless copper plating solution for surface copper plating, the temperature is room temperature, and the copper plati...

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Abstract

The invention relates to an electroless copper plating solution for a zinc alloy and the application of the electroless copper plating solution, belonging to the technical field of metal surface chemical treatment. The electroless copper plating solution mainly comprises copper salt, a reducing agent, a complexing agent, a stabilizer, a surfactant and an accelerant, wherein the concentration of each component is as follows: the concentration of the copper salt is 10-30 g / L; the concentration of the reducing agent is 5-20 g / L; the concentration of the stabilizer is 7-50 mg / L; the concentration of the complexing agent is 30-120 g / L; the concentration of the surfactant is 5-80 mg / L; and the concentration of the accelerant is 0.1-15 g / L. By using the electroless copper plating solution for the zinc alloy provided by the invention, a pretreatment procedure for traditional electroless copper plating for the zinc alloy is shortened, and requirement of electroless copper plating on temperature conditions is also lowered. By adopting the electroless copper plating solution provided by the invention, the electroless copper plating rate during zinc alloy electroless copper plating can be greatly improved; the plating layer of an obtained product is uniform; the plating layer is combined with a substrate well; and large-scale application is convenient.

Description

technical field [0001] The invention relates to a zinc alloy electroless copper plating solution and its application, belonging to the technical field of metal surface chemical treatment. Background technique: [0002] Zinc alloys are widely used in various decorative fields, such as furniture accessories, architectural decoration, bathroom accessories, toys, various metal buckles, lighting parts, etc. However, the surface of zinc alloy is prone to oxidation and corrosion in the environment, which affects its aesthetics, and with the extension of oxidation and corrosion time, other properties of zinc alloy will also be greatly affected. Therefore, it is very necessary to protect the surface of zinc alloy during application. Zinc is an amphoteric metal, and its standard electrode potential is -0.76V. Therefore, zinc and zinc alloys have relatively high chemical activity. Whether it is electroplating or electroless plating, the surface treatment of zinc has always been diffic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/40
CPCC23C18/40
Inventor 林高用王洪洋赵思宇王晶莉周杨鑫
Owner CENT SOUTH UNIV
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