EP 0242421 B1 19890906 - METHOD AND APPARATUS FOR ELECTROCHEMICAL POLISHING AND PICKLING
Title (en)
METHOD AND APPARATUS FOR ELECTROCHEMICAL POLISHING AND PICKLING
Publication
Application
Priority
EP 86105747 A 19860425
Abstract (en)
[origin: US4776933A] It is provided in an electrochemical polishing and pickling method and apparatus for treating metal surfaces that an electrolyte stream (18) entering a casing (12) is divided into an anodic partial stream (20) and a cathodic partial stream (22). The anodic partial stream (20) flows past a dielectric wall (32) as well as the surface (10') to be polished or pickled, while the cathodic partial stream does not reach the surface (10') to be polished but instead is recycled directly into an electrolyte reservoir (30) after having passed the cathodes (24).
IPC 1-7
IPC 8 full level
B23H 3/10 (2006.01); C25F 1/02 (2006.01); C25F 1/04 (2006.01); C25F 3/16 (2006.01); C25F 7/00 (2006.01)
CPC (source: EP US)
C25F 1/04 (2013.01 - EP US); C25F 3/16 (2013.01 - EP US); C25F 7/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0242421 A1 19871028; EP 0242421 B1 19890906; AT E46197 T1 19890915; DE 3665490 D1 19891012; JP 2573220 B2 19970122; JP S62260100 A 19871112; US 4776933 A 19881011
DOCDB simple family (application)
EP 86105747 A 19860425; AT 86105747 T 19860425; DE 3665490 T 19860425; JP 10116687 A 19870425; US 4217087 A 19870424