Processing technology of fracturing pump plunger with wear-resistant and corrosion-resistant protective layer

The invention relates to the technical field of fracturing pump plunger machining, in particular to a machining technology for a fracturing pump plunger with a wear-resistant and corrosion-resistant protective layer, and aims to solve the problems that an existing fracturing pump plunger is prone to damage and needs to be frequently replaced due to poor corrosion resistance and wear resistance, and the equipment utilization rate is reduced. According to the processing technology, silicon carbide, silicon dioxide and mica powder are modified by utilizing a coupling agent, so that the dispersity of the silicon carbide, the silicon dioxide and the mica powder in wear-resistant and corrosion-resistant liquid is enhanced, agglomeration is avoided, amino groups on the silicon carbide, the silicon dioxide and the mica powder can react with carboxyl groups in the wear-resistant and corrosion-resistant liquid and are connected in a chemical bond manner, and the binding force is enhanced; the wear-resistant and corrosi