EP 0359736 B1 19930203 - METHOD OF ELECTROLYTICALLY PICKLING SPECIAL STEEL
Title (en)
METHOD OF ELECTROLYTICALLY PICKLING SPECIAL STEEL
Publication
Application
Priority
AT 225888 A 19880914
Abstract (en)
[origin: EP0359736A1] In a method of electrolytically pickling steel strip, in particular hot-rolled special steel strip, the hot-rolled special steel strip is alternately pickled anodically and cathodically in an aqueous solution of Na2SO4 and then in an aqueous solution of NaNO3 and NaF, whereby the formation of hazardous nitrous gases is prevented.
IPC 1-7
IPC 8 full level
C25F 1/06 (2006.01)
CPC (source: EP KR US)
Designated contracting state (EPC)
BE DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0359736 A1 19900321; EP 0359736 B1 19930203; AT 391486 B 19901010; AT A225888 A 19900415; DE 58903444 D1 19930318; ES 2039949 T3 19931001; FI 893978 A0 19890824; FI 893978 A 19900315; FI 90093 B 19930915; FI 90093 C 19931227; JP H02107800 A 19900419; JP H0713320 B2 19950215; KR 900004969 A 19900413; KR 950012425 B1 19951017; US 5022971 A 19910611; ZA 896965 B 19900627
DOCDB simple family (application)
EP 89890225 A 19890901; AT 225888 A 19880914; DE 58903444 T 19890901; ES 89890225 T 19890901; FI 893978 A 19890824; JP 23452789 A 19890908; KR 890012905 A 19890906; US 40634289 A 19890913; ZA 896965 A 19890913