Cobalt-tungsten-nickel alloy electroplating solution and preparation method thereof

A technology for electroplating solution and nickel alloy, which is applied in the field of cobalt-tungsten-nickel alloy electroplating solution and preparation, and can solve the problems of easy scorching, poor current efficiency, rough coating and the like

Inactive Publication Date: 2015-02-25
WUXI NUIST WEATHER SENSOR NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating formed by this electroplating solution is rough, has poor wear resistance and corrosion resistance, and has poor current efficiency, which will pollute the environment, and the high current density area is easy to burn

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The formula of the electroplating solution is as follows: sodium tungstate 30g / L, cobalt sulfate 10g / L, nickel sulfate 40g / L, sodium chloride 50g / L, potassium sulfate 40g / L, buffer 20g / L, stabilizer 20g / L , antioxidant 1g / L, add deionized water to 1000ml.

[0029] Take deionized water and put it in a container, weigh an appropriate amount of stabilizer and antioxidant according to the formula, and stir until dissolved; then weigh an appropriate amount of sodium tungstate, cobalt sulfate, and nickel sulfate and add them to the solution, and stir until dissolved at room temperature; Add sodium chloride and potassium sulfate to the solution, then heat the above solution to 55-65°C, stir while heating, and adjust the pH value of the solution with a buffer.

Embodiment 2

[0031] The formula of the electroplating solution is as follows: sodium tungstate 43g / L, cobalt sulfate 13g / L, nickel sulfate 51g / L, sodium chloride 73g / L, potassium sulfate 50g / L, buffer 27 g / L, stabilizer 30 g / L, antioxidant 2.5g / L, add deionized water to 1000ml.

[0032] Take deionized water and put it in a container, weigh an appropriate amount of stabilizer and antioxidant according to the formula, and stir until dissolved; then weigh an appropriate amount of sodium tungstate, cobalt sulfate, and nickel sulfate and add them to the solution, and stir until dissolved at room temperature; Add sodium chloride and potassium sulfate to the solution, then heat the above solution to 55-65°C, stir while heating, and adjust the pH value of the solution with a buffer.

Embodiment 3

[0034] The formulation of the electroplating solution is as follows: sodium tungstate 53g / L, cobalt sulfate 16g / L, nickel sulfate 63g / L, sodium chloride 96g / L, potassium sulfate 60g / L, buffer 34 g / L, stabilizer 40g / L L, antioxidant 4g / L, add deionized water to 1000ml.

[0035]Take deionized water and put it in a container, weigh an appropriate amount of stabilizer and antioxidant according to the formula, and stir until dissolved; then weigh an appropriate amount of sodium tungstate, cobalt sulfate, and nickel sulfate and add them to the solution, and stir until dissolved at room temperature; Add sodium chloride and potassium sulfate to the solution, then heat the above solution to 55-65°C, stir while heating, and adjust the pH value of the solution with a buffer.

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PUM

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Abstract

The invention relates to a cobalt-tungsten-nickel alloy electroplating solution and a preparation method thereof. The electroplating solution is prepared as follows: adding 30-70g / L sodium tungstate, 10-20g / L cobalt sulfate, 40-75g / L nickel sulfate, 50-120g / L sodium chloride, 40-70g / L potassium sulfate, 20-40g / L a buffer, 20-50g / L a stabilizer and 1-5g / L an antioxidant into deionized water to 1000ml, weighing an appropriate amount of a wetting agent, adding the deionized water and stirring till dissolution; and further weighing an appropriate amount of sodium tungstate, cobalt sulfate and nickel sulfate into a solution, and stirring at normal temperature till dissolution; further adding sodium chloride and potassium sulfate into the solution, heating the solution to 55-65 DEG C, stirring while heating and regulating the pH value of the solution with the buffer. A plated layer formed by the electroplating solution provided by the invention has strong throwing power and covering power, strong corrosion resistance, high current efficiency and little environmental pollution, and a high-density area of the plated layer can not be burned.

Description

technical field [0001] The invention relates to a cobalt-tungsten-nickel alloy electroplating solution and a preparation method thereof, belonging to the technical field of electroplating solutions. Background technique [0002] Electroplating is the process of plating a thin layer of other metals or alloys on the surface of certain metals using the principle of electrolysis. It is a process of using electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation ( Such as rust), improve wear resistance, electrical conductivity, reflective properties, corrosion resistance (copper sulfate, etc.) and enhance the appearance. The outer layer of many coins is also electroplated. [0003] During electroplating, the plated metal or other insoluble materials are used as the anode, and the workpiece to be plated is used as the cathode, and the cations of the plated metal are reduced on the surface of the workpiece to be plated ...

Claims

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Application Information

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IPC IPC(8): C25D3/56
CPCC25D3/56C25D3/562
Inventor 禹胜林
Owner WUXI NUIST WEATHER SENSOR NETWORK TECH
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