MAGNESIUM ALLOY PHOSPHATING AGENT, METAL COMPONENT, AND SURFACE PHOSPHATING TREATMENT METHOD THEREFOR

摘要

A magnesium alloy phosphating agent is used for forming a coating on the surface of a metal component, and based on 1000 parts by weight, comprises the following components in parts by weight: 0.5 parts of 2 parts of phytic acid, 5 parts of 30 parts of zinc dihydrogen phosphate, 2 parts of 5 parts of ammonium hydrogen fluoride, 1 part of 4 parts of ammonium metavanadate, 1 part of 4 parts of zinc sulfate and the balance water. A conversion film formed by the magnesium alloy phosphating agent is dense, uniform, firm and stable and has strong adhesion, and prevents the erosion of a corrosive medium to a body.