EP 0472057 B1 19950719 - Arrangement and process to obtain a cathodic protection.
Title (en)
Arrangement and process to obtain a cathodic protection.
Title (de)
Anordnung und Verfahren zur Erzielung eines kathodischen Korrosionsschutzes.
Title (fr)
Arrangement et procès pour obtenir une protection cathodique.
Publication
Application
Priority
DE 4025088 A 19900808
Abstract (en)
[origin: EP0472057A2] The invention relates to the cathodic corrosion protection for a metallic, aluminium-containing substrate surface which may have an electrolyte flowing round it by carrying out electrolysis, switching off the electrolysis, observing the control voltage and switching on the electrolysis when the control voltage is equal to a specified limit voltage. A counterelectrode (4), which can be corroded by the electrolyte only to an insignificant extent, is wired as anode, while the surface of a substrate (3) acts as cathode. A reference electrode (7) has a constant electrochemical potential with respect to the electrolyte. An electrolysis can be brought about in the electrolyte by a potentiostat (5) which is electrically connected to the substrate (3) and the counterelectrode (4), an electrical electrolysing voltage being switched on between the substrate (3) and the counterelectrode (4). A control unit (6, 8, 9), which is electrically connected to the substrate (3), the reference electrode (7) and the potentiostat (5) and which is capable of measuring an electrical control voltage between the reference electrode (7) and the substrate (3) switches the electrolysing voltage on and off. <IMAGE>
IPC 1-7
IPC 8 full level
C23F 13/00 (2006.01); C23F 13/02 (2006.01)
CPC (source: EP US)
C23F 13/02 (2013.01 - EP US)
Designated contracting state (EPC)
BE FR IT LU NL
DOCDB simple family (publication)
EP 0472057 A2 19920226; EP 0472057 A3 19920902; EP 0472057 B1 19950719; DE 4025088 A1 19920213; JP H05331669 A 19931214; US 5338417 A 19940816
DOCDB simple family (application)
EP 91113329 A 19910808; DE 4025088 A 19900808; JP 19627891 A 19910806; US 74193491 A 19910808