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Imitation gold electroplating liquid and using method thereof

An electroplating solution and imitation gold technology, applied in the field of imitation gold electroplating solution, can solve the problems of high contact resistance and low corrosion resistance, and achieve the effects of good electroplating performance, stable performance and simple preparation.

Inactive Publication Date: 2015-03-25
HENGYANG FENGSHUN AXLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since metals cannot avoid the occurrence of defective electronic circuits, tin plating is prone to problems such as high contact resistance and low corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of imitation gold electroplating solution, is made up of cuprous cyanide, zinc cyanide, sodium cyanide, sodium phosphate and sodium fluoride; Wherein, the concentration of described cuprous cyanide is 80g / L, and the concentration of zinc cyanide is 10g / L; the concentration of sodium cyanide is 100g / L; the concentration of sodium phosphate is 20g / L; the concentration of sodium fluoride is 3g / L.

[0017] A method of using a gold-imitating electroplating solution. The electroplating solution prepared according to the composition ratio is added to the electroplating tank whose anode is a copper-zinc alloy plate, and the temperature controller is adjusted so that the temperature of the electroplating solution in the electroplating tank is controlled at 25 ° C. ;Adjust the current valve so that the current density of the electroplating solution is 8A / dm 3 , Then, put the parts that need to be electroplated into the electroplating tank, and then energize the electroplat...

Embodiment 2

[0020] A kind of imitation gold electroplating solution, is made up of cuprous cyanide, zinc cyanide, sodium cyanide, sodium phosphate and sodium fluoride; Wherein, the concentration of described cuprous cyanide is 70g / L, and the concentration of zinc cyanide is 8g / L; the concentration of sodium cyanide is 90g / L; the concentration of sodium phosphate is 10g / L; the concentration of sodium fluoride is 2g / L.

[0021] A method of using a gold-imitating electroplating solution. The electroplating solution prepared according to the composition ratio is added to the electroplating tank whose anode is a copper-zinc alloy plate, and the temperature controller is adjusted so that the temperature of the electroplating solution in the electroplating tank is controlled at 25 ° C. ;Adjust the current valve so that the current density of the electroplating solution is 5A / dm 3 , Then, put the parts that need to be electroplated into the electroplating tank, and then energize the electroplatin...

Embodiment 3

[0024] A kind of imitation gold electroplating solution, is made up of cuprous cyanide, zinc cyanide, sodium cyanide, sodium phosphate and sodium fluoride; Wherein, the concentration of described cuprous cyanide is 80g / L, and the concentration of zinc cyanide is 10g / L; the concentration of sodium cyanide is 110g / L; the concentration of sodium phosphate is 25g / L; the concentration of sodium fluoride is 5g / L.

[0025] A method of using a gold-imitating electroplating solution. The electroplating solution prepared according to the composition ratio is added to the electroplating tank whose anode is a copper-zinc alloy plate, and the temperature controller is adjusted so that the temperature of the electroplating solution in the electroplating tank is controlled at 25 ° C. ;Adjust the current valve so that the current density of the electroplating solution is 10A / dm 3 , Then, put the parts that need to be electroplated into the electroplating tank, and then energize the electropla...

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PUM

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Abstract

The invention discloses an imitation gold electroplating liquid. The imitation gold electroplating liquid consists of cuprous cyanide, zinc cyanide, sodium cyanide, sodium phosphate and sodium fluoride, wherein the concentration of cuprous cyanide is 70-80g / L, the concentration of zinc cyanide is 8-10g / L, the concentration of sodium cyanide is 90-110g / L, the concentration of sodium phosphate is 10-25g / L, and the concentration of sodium fluoride is 2-5g / L. The raw materials of the imitation gold electroplating liquid are readily available, and the imitation gold electroplating liquid is simple to prepare, low in cost, stable in performance and good in electroplating performance. The invention also discloses a using method of the imitation gold electroplating liquid. The using method is simple and convenient to operate, and has a good electroplating effect.

Description

[0001] technical field [0002] The invention relates to an electroplating solution in metal electroplating and a using method thereof, in particular to an imitation gold electroplating solution and a using method thereof. Background technique [0003] Copper-based blanks such as phosphor bronze or beryllium are generally used for parts blanks for electrical contacts such as connectors used in connection parts of electronic equipment; electroplating technology is widely used for surface treatment of parts for electrical contacts, and the types can be roughly divided into precious metals Electroplating and base metal plating. [0004] Precious metal electroplating mainly uses gold electroplating. Compared with base metal electroplating, gold electroplating can maintain low contact resistance, and has high corrosion resistance and good stability. But the cost of precious metal plating is high. [0005] A base metal plating widely used in industry is tin-lead-tin tin plating....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/58
CPCC25D3/58
Inventor 刘登发尤华胜
Owner HENGYANG FENGSHUN AXLE CO LTD
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