Electroplating method capable of preventing surface corrosion of pump body

Abstract

The invention relates to the technical field of pump performance research, and discloses an electroplating method capable of preventing surface corrosion of a pump body. The ingredients of electroplate liquid comprises, by weight, 30-35 parts of chromium oxide, 20-25 parts of nickel sulfate, 12-15 parts of sulphuric acid, 8-10 parts of sodium hypophosphite, 4-6 parts of sodium citrate, 3-5 parts of sodium formate, 2-4 parts of urea, 0.3-0.5 part of a surfactant, 1.2-1.4 parts of ZrO2 nano powder, 0.5-0.8 part of TiO2 nano powder, 0.1-0.2 part of EDTA and 200-220 parts of water; and the thickness of a plating is 10-12 microns. Through process parameters involved in the prepared electroplating liquid containing the ZrO2 nano powder and the TiO2 nano powder, the best electroplating anticorrosion effect is realized, a non-crystalline structure is formed, the high corrosion resistance is provided, and the corrosion resistance is equivalent to or even better than that of stainless steel withsimilar chromium content.

Description

technical field [0001] The invention belongs to the technical field of pump performance research, and in particular relates to an electroplating method for preventing surface corrosion of a pump body. Background technique [0002] A pump is a machine that transports fluid or pressurizes the fluid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. The pump is mainly used to transport liquids such as water, oil, acid and alkali liquid, emulsion, suspoemulsion and liquid metal, and can also transport liquid, gas mixture and liquid containing suspended solids. Pumps can usually be divided into three categories according to their working principles: positive displacement pumps, dynamic pumps and other types of pumps. In addition to classification by working principle, it can also be classified and named by other methods. For example, according to the driving method, it can be divided into electric ...

AI Technical Summary

Problems solved by technology

[0003] Affected by the working environment, the pump body is prone to corrosion and wear, which greatly shortens its service life and poses hidden dangers to the safe and stable operation of the pump. The existing solution is to use coatings for protection. Although coating protection is effective , but it is easy to fall off, and the combination with the surface is not good. Therefore, the surface treatment method of electroplating and anti-corrosion is applied.