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.
CN114196997APending Publication Date: 2022-03-18CHINA JILIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA JILIANG UNIV
Publication Date
2022-03-18

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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.
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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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