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Electroplating solution for co-ni-p-diamond coating and its preparation method and electroplating method

A co-ni-p-, electroplating solution technology, applied in the direction of coating, electrolytic coating, etc., can solve the problem of not having hard chrome characteristics

Active Publication Date: 2020-09-22
济南东方结晶器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these coatings have all the properties of hard chrome

Method used

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Effect test

Embodiment 1

[0064] A kind of electroplating solution of Co-Ni-P-diamond coating, by comprising the raw material of cobalt sulfamate, nickel sulfamate, boric acid, cobalt chloride, phosphorous acid, diamond micropowder, pressure slow release agent, whitening agent and water be made of;

[0065] The mass concentration that the addition of described cobalt sulfamate accounts for the described electroplating solution of finished product is 360g / L;

[0066] The mass concentration that the addition of described nickel sulfamate accounts for the described electroplating solution of finished product is 60g / L;

[0067] The mass concentration that the addition of described boric acid accounts for the described electroplating solution of finished product is 40g / L;

[0068] The mass concentration that the addition of described cobalt chloride accounts for the described electroplating solution of finished product is 20g / L;

[0069] The mass concentration of the electroplating solution that the addit...

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PUM

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Abstract

The invention provides a plating solution for a Co-Ni-P- diamond coating which is prepared from raw material comprising amino cobalt sulfamate, amino nickel sulfamate, boric acid, cobalt chloride, phosphorous acid, diamond micropowder and water. An electroplating method for preparing Co-Ni-P- diamond coating by the above electroplating solution is also introduced. Through formula optimization andprocess optimization, the corresponding process steps and parameters are applied to the new electroplating solution, realizing formula and process strengthening for powerful alliance. The performanceof the coating is thus improved in the two aspects of the formulation of plating solution and plating method, the result of which gives rise to a coating that can completely replace the hard chrome plating in terms of service performance. The new coating is more environmentally friendly and lower in cost. The phosphorus content (mass percentage) in the above plating layer is 6%-9%, with the hardness of the plating layer being 720 HV. The plating layer is under heat-treatment in air at 300DEG C for 2 hours and the hardness is up to 1050 HV.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to an electroplating solution for a Co-Ni-P-diamond coating, a preparation method thereof, and an electroplating method. Background technique [0002] Electroplated hard chromium coatings are widely used as wear-resistant coatings to prolong the life of mechanical parts. However, traditional hard chrome plating processes produce hexavalent chromium ions, known carcinogens. As a result, efforts are underway throughout the electroplating industry to replace hard chrome coatings with environmentally friendly, non-carcinogenic coatings that have similar or better properties than hard chrome. [0003] Plasma spraying, high velocity oxygen fuel (HVOF) and other similar processes are currently being used to thermally spray hard coatings of chromium carbide, tungsten carbide, triboron alumina, aluminum oxide, etc. in place of hard chrome coatings. However, these processes cannot be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D15/00C25D3/56
CPCC25D3/562C25D15/00
Inventor 邓文
Owner 济南东方结晶器有限公司
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