Tungsten disulfide/cobalt disulfide based composite coating and preparation method and application thereof

A tungsten disulfide and composite coating technology, applied in coatings, electrodes, electrolytic coatings, etc., to reduce friction coefficient and wear rate, excellent wear and corrosion resistance, and good economy.
CN109137014AInactive Publication Date: 2019-01-04GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2019-01-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of surface functional film materials, and discloses a tungsten disulfide / cobalt disulfide based composite coating and a preparation method and applicationthereof. Cobalt, nickel or cobalt-nickel alloy is used as an anode, a to-be-plated workpiece is used as a cathode, and after the anode and the cathode are soaked in a composite electroplating solutionand are ultrasonically vibrated, electrolytic deposition is carried out on the to-be-plated workpiece by pulse current to obtain the tungsten disulfide / cobalt disulfide based composite coating; and the composite electroplating solution comprises the following components under the condition that the total volume of deionized water and various substances is 1L: 30-100 g / L of cobalt salt, 30-100 g / Lof nickel salt, 10-50 g / L of boric acid, 10-50 g / L of a complexing agent, 0.05-0.3 g / L of a surfactant and 6-16 g / L of tungsten disulfide. The preparation method is simple, and the composite coatinghas high hardness, excellent wear resistance and friction reduction property and corrosion resistance. The composite coating is applied to a functional protection layer of a mechanical part which requires low friction coefficient, wear resistance and corrosion resistance, the overall performance of the mechanical part can be improved effectively, and the service life of the mechanical part is prolonged.
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Description

technical field

[0001] The invention belongs to the technical field of surface functional thin film materials, and more specifically relates to a tungsten disulfide / cobalt-based composite coating and its preparation method and application. Background technique

[0002] It is well known that the wear, corrosion and fracture failure of mechanical parts can lead to huge economic losses. In the past, electroplating hard chrome (Cr) coating with good wear resistance and corrosion resistance on the surface of mechanical parts was an important measure to solve this problem. At present, with the continuous enhancement of human environmental protection awareness, the electroplating Cr process seriously pollutes the environment and endangers human health. Environmental protection departments around the world have restricted and prohibited this process. In addition, with the rapid development of modern industry, the requirements for the comprehensive performance of mechanical parts ar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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