Preparation method of Ni-WS2 coating

Abstract

The invention discloses a preparation method of a Ni-WS2 coating. The preparation method comprises the following steps that grinding, polishing, cleaning and drying are conducted on X100 pipeline steel to obtain an X100 matrix; deionized water, nickel sulfate, nickel chloride and boric acid are mixed, the pH value of the mixed solution is adjusted to 3.3-3.7, and hexadecyl trimethyl ammonium bromide, saccharin, tungsten disulfide nanoparticles, a brightener and a wetting agent are added to obtain an electroplating solution; and a pure nickel sheet is used as an anode, the X100 matrix is used as a cathode, electroplating deposition is carried out in the electroplating solution, the current density is 4A/dm <2>, and the electroplating deposition time is 30-40 minutes, so that the Ni-WS2 coating is prepared on the surface of the X100 pipeline steel. A protective layer with excellent corrosion resistance can be prepared on the surface of the X100 pipeline steel, the corrosion resistance and durability of the X100 pipeline steel are greatly enhanced, and the preparation method is simple, easy to operate, low in cost and high in repeatability.

Description

technical field [0001] The invention relates to the technical field of corrosion protection, in particular to a Ni-WS 2 Coating preparation method. Background technique [0002] Nickel plating is one of the main substitutes for hard chromium plating, and it has been widely used. For example, nickel plating can be used as an anti-corrosion material to improve the anti-corrosion performance of metals, and can also be used as a superhard wear-resistant material to improve the corrosion resistance of the substrate. Wear resistance, can also be used to simply beautify and decorate the substrate. [0003] With the advancement of science and technology, a single pure nickel coating can no longer meet the development needs. Although the pure nickel coating can improve the surface properties of the substrate to a certain extent, the dry friction coefficient of the pure nickel coating is relatively high, usually between 0.4 and 0.7, which is not conducive to surface lubrication, and...

AI Technical Summary

Problems solved by technology

[0003] With the advancement of science and technology, a single pure nickel coating can no longer meet the development needs

Although the pure nickel coating can improve the surface properties of the substrate to a certain extent, the dry friction coefficient of the pure nickel coating is relatively high, usually between 0.4 and 0.7, which is not conducive to surface lubrication, and the hardness and wear resistance of the pure nickel coating And anti-corrosion performance can no longer meet the needs of modern industry, which seriously limits the application range of nickel coating

[0004] In the existing technology, X100 pipeline steel that has been in service for a long time will be severely corroded, and surface anticorrosion treatment is required. However, the existing corrosion protection technology for X100 pipeline steel has the problems of poor corrosion resistance, high manufacturing cost, and poor durability.

Images