公开(公告)号：JP2003193259A

公开(公告)日：2003-07-09

申请号：JP2001392916

申请日：2001-12-25

Applicant: NEW IND RES ORGANIZATION

Inventor： TSUBAKINO HARUSHIGE ,  YAMAMOTO ATSUYUKI

IPC: C23C22/57 ,  C22C23/02 ,  C22C23/04 ,  C23C22/68

Abstract: PROBLEM TO BE SOLVED: To improve the corrosion resistance and recycling properties of an Mg alloy by surface treatment. SOLUTION: An Mg alloy having a composition containing, as alloy elements, one or more kinds selected from 0.0001 to 10% Al, 0.0001 to 10% Zn, 0.0001 to 1% Mn, and 0.0001 to 1% Si, and the balance Mg with inevitable impurities is immersed into an aqueous solution having a composition containing, as chemical components, each substance of 1 to 300 g sodium chloride, 1 to 400 g magnesium chloride, 0.00001 to 0.1 g magnesium hydroxide, and 0.001 to 500 g sodium hydroxide expressed in terms of mass in 1 L of water, and the balance water with inevitable impurities for 10 s to 36 ks, and is thereafter dried, is heated in the air, and is held at 573 to 873 K for 10 s to 36 ks. COPYRIGHT: (C)2003,JPO