公开(公告)号：EP1698716A4

公开(公告)日：2007-07-04

申请号：EP04799542

申请日：2004-11-09

申请人： TOYO KOHAN CO LTD ,  TOYO SEIKAN KAISHA LTD

发明人： KUROKAWA W ,  MATSUBAYASHI H ,  AIHARA M ,  MATSUBARA M ,  ISHIDA MASATOKI ,  MAIDA N

IPC分类号： C25D9/08 ,  C23C8/40 ,  C23C26/00 ,  C25D13/02 ,  C25D13/22 ,  C25D17/00

CPC分类号： C23C8/40 ,  C25D9/08

摘要： Disclosed are a method and an apparatus for forming an oxide coating film with excellent corrosion resistance and adhesiveness on a cathode made of a metal plate by a simple process at low cost. A direct current voltage is applied between an anode (12) and a cathode (13) in an electrolyte solution which cathode (13) is made of a metal plate to be coated with oxide and arranged opposite to the anode (12), while supplying oxygen or a gas containing oxygen into the electrolyte solution, so that the metal plate cathode (13) is coated with oxide, thereby being formed into a oxide-coated metal plate.