EP 0656957 A1 19950614 - PROCESS FOR PHOSPHATIZING STEEL ZINC-COATED ON ONE SIDE ONLY.
Title (en)
PROCESS FOR PHOSPHATIZING STEEL ZINC-COATED ON ONE SIDE ONLY.
Title (de)
VERFAHREN ZUR PHOSPHATIERUNG VON EINSEITIG VERZINKTEM STAHLBAND.
Title (fr)
PROCEDE DE PHOSPHATATION D'ACIER ZINGUE D'UN SEUL COTE.
Publication
Application
Priority
- DE 4228470 A 19920827
- EP 9302205 W 19930818
Abstract (en)
[origin: US5516372A] PCT No. PCT/EP93/02205 Sec. 371 Date Apr. 27, 1995 Sec. 102(e) Date Apr. 27, 1995 PCT Filed Aug. 18, 1993 PCT Pub. No. WO94/05826 PCT Pub. Date Mar. 17, 1994.A process for phosphating a galvanized surface of a steel strip electrolytically galvanized on one side by contacting the galvanized surface of the steel strip with a phosphating solution containing 1.0 to 6 g/l zinc, 0.5 to 5.0 g/l nickel and 14 to 25 g/l phosphate at a temperature of 40 DEG to 70 DEG C. for from 2 to 20 seconds. The ungalvanized surface remains metal bright.
IPC 1-7
IPC 8 full level
C23C 22/12 (2006.01); C23C 22/18 (2006.01); C23C 22/22 (2006.01); C23C 22/36 (2006.01)
CPC (source: EP KR US)
C23C 22/12 (2013.01 - EP KR US); C23C 22/184 (2013.01 - EP KR US); C23C 22/188 (2013.01 - KR); C23C 22/362 (2013.01 - EP US); C23C 22/365 (2013.01 - KR); C23C 22/77 (2013.01 - KR); C23C 22/80 (2013.01 - KR)
Citation (search report)
See references of WO 9405826A1
Designated contracting state (EPC)
AT BE DE ES FR GB IT LU NL
DOCDB simple family (publication)
US 5516372 A 19960514; AT E150803 T1 19970415; DE 4228470 A1 19940303; DE 59305978 D1 19970430; EP 0656957 A1 19950614; EP 0656957 B1 19970326; JP H08501829 A 19960227; KR 950703075 A 19950823; WO 9405826 A1 19940317
DOCDB simple family (application)
US 38793195 A 19950427; AT 93919089 T 19930818; DE 4228470 A 19920827; DE 59305978 T 19930818; EP 9302205 W 19930818; EP 93919089 A 19930818; JP 50679893 A 19930818; KR 19950700721 A 19950224