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Nickel-chromium-copper-cobalt alloy electroplating solution and preparation method thereof

An alloy electroplating solution and a preparation method technology, applied in the field of electroplating solution, can solve problems such as single electroplating, and achieve the effects of improving corrosion resistance, not easy to fall off, and good stability

Active Publication Date: 2014-09-17
JURONG BOYUAN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the electroplating we carry out is relatively simple, and nickel plating is more common, but this single electroplating layer can no longer meet the needs of the market, so seeking an alloy electroplating solution is the development trend of the electroplating industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: a kind of nickel-chromium-copper-cobalt alloy electroplating solution comprises following components: nickel sulfate 10g / L, nickel nitrate 23g / L, chromium sulfate dodecahydrate 12g / L, copper sulfate hexahydrate 8 g / L, acetic acid Cobalt 1g / L, brightener 5mL / L, ascorbic acid 0.2 g / L, citric acid 6g / L, pH value 5. The brightener is 0.1mol / L stannous chloride hydrochloric acid solution.

[0016] The preparation method of above-mentioned nickel-chromium-copper-cobalt alloy electroplating solution, the method comprises the steps:

[0017] (1) Prepare the materials according to the dosage of the components of the above electroplating solution; when preparing the materials, the brightener is ready for use;

[0018] (2) Under the condition of 30°C, add nickel sulfate, nickel nitrate, chromium sulfate dodecahydrate, copper sulfate hexahydrate, cobalt acetate, ascorbic acid and citric acid to dissolve completely, then add brightener and stir evenly; To the require...

Embodiment 2

[0021] Embodiment 2: a kind of nickel-chromium-copper-cobalt alloy electroplating solution comprises following components: nickel sulfate 20g / L, nickel nitrate 38 g / L, chromium sulfate dodecahydrate 18 g / L, copper sulfate hexahydrate 12 g / L , cobalt acetate 3 g / L, brightener 9 mL / L, ascorbic acid 0.5 g / L, citric acid 10 g / L, pH value 6. The brightener is 0.1mol / L stannous chloride hydrochloric acid solution.

[0022] The preparation method of above-mentioned nickel-chromium-copper-cobalt alloy electroplating solution, the method comprises the steps:

[0023] (1) Prepare the materials according to the dosage of the components of the above electroplating solution; when preparing the materials, the brightener is ready for use;

[0024] (2) Under the condition of 40°C, add nickel sulfate, nickel nitrate, chromium sulfate dodecahydrate, copper sulfate hexahydrate, cobalt acetate, ascorbic acid and citric acid to dissolve completely, then add brightener and stir evenly; To the ...

Embodiment 3

[0027] Embodiment 3: a kind of nickel-chromium-copper-cobalt alloy electroplating solution comprises following components: nickel sulfate 16g / L, nickel nitrate 25 g / L, chromium sulfate dodecahydrate 15 g / L, copper sulfate hexahydrate 10 g / L , cobalt acetate 2 g / L, brightener 6 mL / L, ascorbic acid 0.3 g / L, citric acid 8 g / L, pH value 5.5. The brightener is 0.1mol / L stannous chloride hydrochloric acid solution.

[0028] The preparation method of above-mentioned nickel-chromium-copper-cobalt alloy electroplating solution, the method comprises the steps:

[0029] (1) Prepare the materials according to the dosage of the components of the above electroplating solution; when preparing the materials, the brightener is ready for use;

[0030] (2) Under the condition of 35°C, add nickel sulfate, nickel nitrate, chromium sulfate dodecahydrate, copper sulfate hexahydrate, cobalt acetate, ascorbic acid and citric acid to dissolve completely, then add brightener and stir evenly; To the re...

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PUM

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Abstract

The invention discloses a nickel-chromium-copper-cobalt alloy electroplating solution which comprises 10-20 g / L nickel sulfate, 23-38 g / L nickel nitrate, 12-18 g / L chromic sulfate dodecahydrate, 8-12 g / L copper sulfate hexahydrate, 1-3 g / L cobalt acetate, 5-9 mL / L brightening agent, 0.2-0.5 g / L ascorbic acid and 6-10 g / L citric acid. The pH value is 5-6. The electroplating solution has favorable stability; by adding the copper, chromium and cobalt, the corrosion resistance of the electroplated coating is enhanced, and the coating can not easily shed; and the addition of the cobalt salt can enhance the gloss of the nickel coating.

Description

technical field [0001] The invention belongs to the field of electroplating solutions, in particular to a nickel-chromium-copper-cobalt alloy electroplating solution and a preparation method thereof. Background technique [0002] Electroplating solution refers to a liquid that can expand the cathodic current density range of the metal, improve the appearance of the coating, and increase the stability of the solution against oxidation. At present, the electroplating we carry out is relatively simple, and nickel plating is more common, but this single electroplating layer can no longer meet the needs of the market. Therefore, it is the development trend of the electroplating industry to seek an alloy electroplating solution. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a nickel-chromium-copper-cobalt alloy electroplating solution and a preparation method thereof. [0004] In orde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56
Inventor 王梅凤
Owner JURONG BOYUAN ELECTRONICS
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