CHROME-PLATED PART AND MANUFACTURING METHOD OF THE SAME
摘要
An nickel plating layer (5a) intended for corrosion current distribution is formed over a body (2), and a 0.05 to 2.5 micrometers thick surface chrome plating layer (6) made of trivalent chromium is formed on the surface thereof using basic chromium sulfate as a source of metal. Further on the same, a not less than 7 nm thick chromium compound film (7) is formed by cathode acidic electrolytic chromatin. The corrosion distribution nickel plating layer (5a) has a function of forming a microporous structure, a microcrack structure, or the both of the same in the surface chrome plating layer (6).
申请公布号
WO2009028182(A2)
申请公布日期
2009.03.05
申请号
WO2008JP02327
申请日期
2008.08.27
申请人
NISSAN MOTOR CO., LTD.;ATOTECH DEUTSCHLAND GMBH;SUGAWARA, SOICHIRO;KOYASU, HIROAKI;SAKAI, HIROSHI;GEISSLER, JENS-ERIC;KEERS, GRANT
发明人
SUGAWARA, SOICHIRO;KOYASU, HIROAKI;SAKAI, HIROSHI;GEISSLER, JENS-ERIC;KEERS, GRANT