SURFACE TREATMENT METHOD FOR MAGNESIUM OR MAGNESIUM ALLOY

摘要

Disclosed are a surface treatment method for magnesium or magnesium alloy, which uses a brucite crystal film as a lubrication film for forming by forming the brucite crystal film and can remove the film to be clean after the forming. According to an embodiment of the present invention, the surface treatment method for magnesium or magnesium alloy includes: a step of preparing magnesium or magnesium alloy; a step of forming the brucite crystal film on the surface of the magnesium or the magnesium alloy; a step of forming the magnesium or the magnesium alloy on which the brucite crystal film is formed; and a step of removing a crystal film existing on the surface of the formed magnesium or the magnesium alloy. The step of removing the crystal film existing on the formed magnesium or the magnesium alloy uses the denitration method.