公开(公告)号：US09845547B2

公开(公告)日：2017-12-19

申请号：US14621008

申请日：2015-02-12

申请人： Hyundai Motor Company ,  Inha-Industry Partnership Institute

发明人： Ye Lim Kim ,  Hyung Sop Yoon ,  Hyeon Seok Yoo ,  Dong Eun Lee ,  Chul Ho Lee ,  Jin Sub Choi

IPC分类号： C25D11/06 ,  C25D11/10 ,  C25D11/08

CPC分类号： C25D11/10 ,  C25D11/06 ,  C25D11/08

摘要： A method for surface treatment of aluminum alloys for forms an oxidation film in the aluminum alloys for casting by adding a metallic anion compound to an electrolytic solution. The method can prevent cracks from occurring on a surface of the aluminum alloys for casting at the time of applying an anodizing method.