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Preparation method and application of Ni/P-Ni/P/PTFE-PTFE composite coating

A PTFE-PTFE, composite coating technology, used in coatings, metal material coating processes, devices for coating liquids on surfaces, etc. The abrasiveness is not very ideal, etc., to achieve the effect of prolonging the service life, low cost and simple structure

Active Publication Date: 2015-03-25
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the coating performance obtained by composite electroless plating is better than that of pure electroless plating, there are many problems, such as: the corrosion resistance and wear resistance of the coating are not very ideal, the added particles cannot be uniformly attached to the coating, and There are problems such as pores

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  • Preparation method and application of Ni/P-Ni/P/PTFE-PTFE composite coating
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  • Preparation method and application of Ni/P-Ni/P/PTFE-PTFE composite coating

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Embodiment Construction

[0071] The present invention will be further described in detail below through the accompanying drawings and examples.

[0072] As shown in Fig. 1(a), the electroless plating device includes a plating tank 1, a plating solution 2, a part 3, a turret 4, etc. The plating tank 1 is equipped with a plating solution 2, and the part 3 is installed on the turret 4, and the turret 4 The rotation can drive the part 3 to rotate in the plating solution 2, and the surface of the part 3 is directly plated to form a uniform Ni / P coating.

[0073] As shown in Figure 1(b), the compound electroless plating device includes a plating tank 5, a compound plating solution 6, parts 7, a turntable 8, etc. The plating tank 5 is equipped with a compound plating solution 6, and the parts 7 are installed on the turntable 8. The rotation of the turret 8 can drive the part 7 to rotate in the composite plating solution 6, and the Ni / P / PTFE transition layer is formed by composite chemical plating on the surf...

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Abstract

The invention relates to the technical field of protective coatings on metal surfaces, and in particular relates to a preparation method and an application of a Ni / P-Ni / P / PTFE-PTFE composite coating. The method is applied to surfaces of mechanical components and can improve corrosion resistance, wear resistance and self-lubricating property of the mechanical components. A Ni / P plated layer is formed on the surface of a matrix by virtue of direct plating, a Ni / P / PTFE transition layer is formed on the surface of the Ni / P plated layer by virtue of composite chemical plating, and a polytetrafluoroethylene coating is sprayed on the surface of the Ni / P / PTFE transition layer to serve as a surface layer. The Ni / P-Ni / P / PTFE-PTFE composite coating provided by the invention is applied to surfaces of high-corrosivity vacuum pumps, semiconductor devices, scientific instruments and processes of biological pharmacy, medical treatment, chemistry & chemical industry and the like, and the protective coating can resist corrosion of high-corrosivity gases for a long time and can improve the service lives of the mechanical components.

Description

technical field [0001] The invention relates to the technical field of metal surface protective coatings, in particular to a preparation method and application of a Ni / P-Ni / P / PTFE-PTFE composite coating. Background technique [0002] Electroless nickel plating has excellent comprehensive physical and chemical properties such as corrosion resistance, wear resistance and weldability, and is widely used in aviation, aerospace, petrochemical, machinery, electronics, computers, automobiles, food packaging, molds, medical , textile and other fields. Electroless plating is a metal deposition process in which metal ions are reduced under the autocatalysis of the metal surface by a reducing agent in a solution. However, with the development of modern science and technology, the requirements for corrosion resistance and wear resistance of mechanical parts in these fields are getting higher and higher, and the single electroless nickel plating is increasingly unable to meet the needs ...

Claims

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Application Information

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IPC IPC(8): C23C18/36B05D7/24
CPCB05D7/24C23C18/36
Inventor 金花子吴杰南泉熊天英
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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