Metal part surface electroplating pretreatment process

The invention provides a metal part surface electroplating pretreatment process and relates to the technical field of metal surface treatment. A metal part is immersed in surface cleaning fluid for 5-15 min; the metal part is made to rotate rapidly, the rotation speed is not smaller than 800 revolutions/min, and the rotation lasts for 3-5 min; the metal part is taken out and is cleaned in clean water; water on the metal part is drained off; the water-drained metal part is put in a metal surface treating agent to be soaked for 5 min, the metal part is taken out and is dried at normal temperature, and a layer of protection film is formed on the surface of the metal part. Compared with the prior art, the process is simple; the working efficiency is high; the pollutant cleaning effect of the surface of the metal part is good; the cleaning efficiency of the metal surface is improved by utilizing rapid flowing of the surface cleaning fluid; as the flowing surface cleaning fluid contains silica sand and can play a role in reinforcing cleaning of stubborn stains and rust on the metal surface; the protection film formed on the metal surface is not prone to falling off and has good adhesive force, so that the corrosive protection performance of a coating is improved.