Composite electroplating solution capable of prolonging service life of scaffolds

Abstract

The invention discloses a composite electroplating solution capable of prolonging the service life of scaffolds. The composite electroplating solution is composed of, by weight, 1-3 parts of N-methyl pyrrolidone, 6.8-9 parts of aniline, 0.8-1 part of sodium citrate, 0.1-0.2 part of ammonium persulfate, 50-60 parts of boric acid, 220-250 parts of nickel sulfate, 40-50 parts of nickel chloride, 0.2-0.3 part of lauryl sodium sulfate, 50-60 parts of polytetrafluoroethylene emulsion, 3-4 parts of cationic surface active agents FC134, 2.6-3 parts of cerium oxide, 3-4 parts of nano-scaled calcium fluoride, 0.1-0.2 part of rare earth coupling agents, 2.2-2.8 parts of bentonite, an appropriate amount of ethyl alcohol and an appropriate amount of deionized water. The electroplating solution can be recycled many times, waste of the electroplating solution, environmental pollution and treatment cost are reduced, and the electroplating layers are good in mechanical property, high in hardness, long in service life and high in firmness. Thus, the composite electroplating solution is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of electroplating solutions, in particular to a composite electroplating solution for improving the service life of scaffolding. Background technique [0002] Electroplating, also known as metal electrodeposition technology, is a process in which the workpiece is immersed in a solution containing the metal salt to be deposited, and a negative charge is applied to the workpiece to deposit a layer of metal or alloy layer that is closely bonded to the workpiece on the surface of the workpiece. The basic principle of electroplating is to reduce the metal ions in the solution on the interface between the solution and the plated parts through the action of various electric fields, generate metal atoms and deposit them on the metal surface to form a coating. Composite coating is a surface modification technology that adds insoluble solid particles to the plating solution to cause co-deposition of matrix metal and s...

AI Technical Summary

Problems solved by technology

[0003] In the article "Research on NI-PTFE Composite Electroplating Process", the author proposed that the Ni / PTFE composite coating was successfully prepared by adding polytetrafluoroethylene emulsion and FC134 cationic surfactant to the electroplating solution. In terms of mechanical properties, the friction coefficient of the composite coating is 0.218, which is only about 34% of the pure nickel coating. However, due to the softness of PTFE, after entering the coating, the hardness of the composite coating is reduced compared with that of the pure nickel coating, and at the same time, the amount of wear is somewhat reduced. Increase

Therefore, in some fields, this composite coating cannot meet the demand