Coating film removing method of coated magnesium alloy material, manufacturing method of recycled magnesium alloy material, and recycling system of magnesium alloy material

摘要

PPROBLEM TO BE SOLVED: To provide a method for properly removing, in a short period of time, a coating formed on the surface of a magnesium alloy product while attaining the life prolongation of a treatment solution to be used, a method of making a recycled magnesium alloy product including the method, and a recycling system for the magnesium-alloy product. PSOLUTION: When removing the coating from the coated magnesium-alloy product, the coated magnesium-alloy product is subjected to a first treatment step S11 of allowing a first alkaline solution to act on the coated magnesium-alloy product and a second treatment step S13 of allowing a second alkaline solution different from the first alkaline solution to act on the magnesium-alloy material which has undergone the first treatment step S11. PCOPYRIGHT: (C)2006,JPO&NCIPI