Cu-Zn-Sn ternary alloy electroplate liquid

A cu-zn-sn, ternary alloy technology, applied in the field of electroplating solution, Cu-Zn-Sn ternary alloy electroplating solution, and alloy electroplating solution, can solve the problem of unsatisfactory appearance and color of imitation gold plating, which endangers the health of operators , narrow range of process parameters, etc., to achieve the effect of good appearance and color, wide range of process parameters, uniform plating and strong coverage

Inactive Publication Date: 2015-11-04
WUXI QIAOYANG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are two types of imitation gold electroplating, cyanide electroplating and cyanide-free electroplating. The traditional imitation gold electroplating process is cyanide electroplating, which is highly toxic, difficult to treat waste water and liquid waste, serious environmental pollution, and will seriously endanger the health of operators. Healthy, applications are extremely limited
And the existing cyanide-free imitation gold electroplating mainly contains Cu-Zn binary gold imitation electroplating and Cu-Zn-Sn ternary gold imitation electroplating process, but existing technology all has process parameter range narrower, imitation gold coating appearance color and luster is not good Ideal, there are many pinholes on the surface, pitting and other shortcomings, and its process still needs to be further improved and optimized

Method used

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  • Cu-Zn-Sn ternary alloy electroplate liquid
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  • Cu-Zn-Sn ternary alloy electroplate liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The Cu-Zn-Sn ternary alloy electroplating solution of the present embodiment comprises the component of following concentration:

[0022]

[0023] The electroplating solution of this embodiment also includes a pH adjusting agent—potassium hydroxide or sodium hydroxide, which is used to adjust the pH of the electroplating solution to 8.0.

[0024] Configure according to the above ratio, stir evenly, the anode required for Cu-Zn-Sn ternary alloy electroplating solution is stainless steel; the cathode current density of Cu-Zn-Sn ternary alloy electroplating solution is 2-4A / dm 2 ; The temperature of the Cu-Zn-Sn ternary alloy electroplating solution is room temperature.

Embodiment 2

[0026] The Cu-Zn-Sn ternary alloy electroplating solution of the present embodiment comprises the component of following concentration:

[0027]

[0028]

[0029] The electroplating solution of this embodiment also includes a pH adjusting agent—potassium hydroxide or sodium hydroxide, which is used to adjust the pH of the electroplating solution to 9.0.

[0030] Refer to Example 1 for the parameters of the Cu-Zn-Sn ternary alloy electroplating solution in this embodiment for electroplating.

Embodiment 3

[0032] The Cu-Zn-Sn ternary alloy electroplating solution of the present embodiment comprises the component of following concentration:

[0033]

[0034]

[0035] The electroplating solution of this embodiment also includes a pH adjuster—potassium hydroxide or sodium hydroxide for adjusting the pH of the electroplating solution to 10.0.

[0036] Refer to Example 1 for the parameters of the Cu-Zn-Sn ternary alloy electroplating solution in this embodiment for electroplating.

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Abstract

The invention relates to Cu-Zn-Sn ternary alloy electroplate liquid. The Cu-Zn-Sn ternary alloy electroplate liquid comprises, by concentration, 15-25 g / L of copper sulfate, 10-20 g / L of tin methane sulfonate, 20-40 g / L of zinc sulfate, 100-120 g / L of sulfuric acid, 10-20 mL / L of citric acid and 20-35 g / L of potassium citrate. The pH value of the electroplate liquid is regulated to range from 8.0 to 10.0 through a pH value regulating agent. An existing cyanide gold imitation electroplate technology can be replaced with the electroplate liquid, and the electroplate liquid can be applied to utilization of imitated 9K or imitated 18K or imitated 24K gold on the surfaces of decorative objects such as jewelry, clocks, watches and crafts.

Description

technical field [0001] The invention relates to an electroplating solution, and further relates to an alloy electroplating solution, in particular to a Cu-Zn-Sn ternary alloy electroplating solution, which belongs to the field of electroplating. Background technique [0002] Imitation gold electroplating is a decorative alloy electroplating technology. Jewelry, handicrafts, household appliances, lamps and clocks and other accessories are coated with a decorative imitation gold coating to become dazzling, which can achieve the same appearance as pure gold and its coating. The effect of the same color and luster, so the imitation gold plating is very popular. [0003] There are two types of imitation gold electroplating, cyanide electroplating and cyanide-free electroplating. The traditional imitation gold electroplating process is cyanide electroplating, which is highly toxic, difficult to treat waste water and liquid waste, serious environmental pollution, and will seriously...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56
Inventor 沈秋
Owner WUXI QIAOYANG MACHINERY MFG
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