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Plating solution of nickel-cobalt-tungsten gradient plating layer, preparation method and electroplating method

A plating solution and gradient technology is applied in the field of preparation of gradient plating, which can solve the problems of complex control of electroplating parameters and high requirements for electroplating power supply, and achieves the effects of easy preparation, simple plating solution formulation, and uniformity assurance.

Pending Publication Date: 2022-03-18
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to overcome the problems of complex control of electroplating parameters and high requirements for electroplating power in the gradient coating electroplating process, and provide a plating solution and electroplating method of a nickel-cobalt-tungsten gradient coating

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  • Plating solution of nickel-cobalt-tungsten gradient plating layer, preparation method and electroplating method
  • Plating solution of nickel-cobalt-tungsten gradient plating layer, preparation method and electroplating method
  • Plating solution of nickel-cobalt-tungsten gradient plating layer, preparation method and electroplating method

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Embodiment 1

[0038] This embodiment discloses a nickel-cobalt-tungsten gradient plating solution, each 1L of the plating solution includes: nickel sulfate 15g, cobalt sulfate 5g, sodium tungstate 50g, trisodium citrate 150g, ammonium chloride 30g, sodium chloride 10g.

[0039] And on this basis, a method for preparing a nickel-cobalt-tungsten gradient coating solution is disclosed, which specifically includes:

[0040] 1) the nickel sulfate of 15g and the cobalt sulfate of 5g are dissolved in water together to obtain the mixed aqueous solution of nickel salt-cobalt salt;

[0041] 2) Dissolve 50g of sodium tungstate in water to obtain an aqueous solution of sodium tungstate;

[0042] 3) dissolving the trisodium citrate of 150g in water to obtain trisodium citrate aqueous solution;

[0043] 4) the ammonium chloride of 30g and the sodium chloride of 10g are dissolved in water together to obtain aqueous chloride solution;

[0044] 5) Mix sodium tungstate aqueous solution and trisodium citra...

Embodiment 2

[0057] This embodiment discloses a nickel-cobalt-tungsten gradient plating solution, each 1L of the plating solution includes: 18g of nickel sulfate, 6g of cobalt sulfate, 60g of sodium tungstate, 180g of trisodium citrate, 36g of ammonium chloride, and sodium chloride 12g.

[0058] On the basis of the above, this embodiment also discloses a method for preparing a nickel-cobalt-tungsten gradient coating solution, which specifically includes:

[0059] 1) the nickel sulfate of 18g and the cobalt sulfate of 6g are dissolved in water together to obtain the mixed aqueous solution of nickel salt-cobalt salt;

[0060] 2) Dissolve 60g of sodium tungstate in water to obtain an aqueous solution of sodium tungstate;

[0061] 3) dissolving the trisodium citrate of 180g in water to obtain trisodium citrate aqueous solution;

[0062] 4) the ammonium chloride of 36g and the sodium chloride of 12g are dissolved in water together to obtain aqueous chloride solution;

[0063] 5) Mix sodium t...

Embodiment 3

[0073] This embodiment provides a nickel-cobalt-tungsten gradient plating solution, each 1L of plating solution includes: nickel sulfate 9g, cobalt sulfate 3g, sodium tungstate 30g, trisodium citrate 90g, ammonium chloride 18g, sodium chloride 6g.

[0074] On the basis of the above, the present embodiment also provides a method for preparing a nickel-cobalt-tungsten gradient coating solution, which specifically includes:

[0075] 1) the nickel sulfate of 9g and the cobalt sulfate of 3g are dissolved in water together to obtain the mixed aqueous solution of nickel salt-cobalt salt;

[0076] 2) Dissolve 30g of sodium tungstate in water to obtain an aqueous solution of sodium tungstate;

[0077] 3) dissolving the trisodium citrate of 90g in water to obtain trisodium citrate aqueous solution;

[0078] 4) the ammonium chloride of 18g and the sodium chloride of 6g are dissolved in water together to obtain aqueous chloride solution;

[0079] 5) Mix sodium tungstate aqueous solutio...

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Abstract

The invention discloses a plating solution of a nickel-cobalt-tungsten gradient plating layer, a preparation method and an electroplating method, and relates to the field of preparation of gradient plating layers, and every 1 L of the plating solution comprises 9-18 g of nickel sulfate, 3-6 g of cobalt sulfate, 30-60 g of sodium tungstate, 90-180 g of trisodium citrate, 18-36 g of ammonium chloride and 6-12 g of sodium chloride. Constant-current and direct-current continuous electroplating is adopted, and the problems that in the gradient plating electroplating process, electroplating parameter control is complex, and the requirement for an electroplating power source is high are solved.

Description

technical field [0001] The invention relates to the field of preparation of gradient coatings, and more specifically relates to a plating solution, a preparation method and an electroplating method of a nickel-cobalt-tungsten gradient coating. Background technique [0002] With the development of science and technology and economy, in order to meet the continuous improvement of coating performance requirements in the industrial field, coatings with composition, structure or performance gradients have been developed. The gradient distribution of composition and structure in the coating can not only improve the compatibility between the coating and the base material, increase the bonding strength between the two, but also make the coating have other special properties. [0003] Electrodeposition is a simple, fast, cheap, and easy-to-control method for preparing gradient coatings. In the electrodeposition preparation method of gradient coating, the deposition rate of different...

Claims

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Application Information

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IPC IPC(8): C25D3/56C25D5/00C25D5/34
CPCC25D3/56C25D5/615C25D5/34
Inventor 张中泉阴译飚廖志群卫国英
Owner CHINA JILIANG UNIV
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