EP 0694090 A1 19960131 - PROCESS AND DEVICE FOR THE ELECTROLYTIC SURFACE COATING OF WORKPIECES
Title (en)
PROCESS AND DEVICE FOR THE ELECTROLYTIC SURFACE COATING OF WORKPIECES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ELEKTROLYTISCHEN OBERFLÄCHENBESCHICHTUNG VON WERKSTÜCKEN
Title (fr)
PROCEDE ET DISPOSITIF DE DEPOT ELECTROLYTIQUE D'UN REVETEMENT SUPERFICIEL DE PIECES
Publication
Application
Priority
CH 9400031 W 19940215
Abstract (en)
[origin: WO9521952A1] In the novel and advantageous process for electrolytically surface-coating special metal workpieces it is important for the electrolyte to be conveyed in a controlled circuit in and around the electrolysis region in which most of it is conveyed at a high flow rate, possibly at a higher inlet pressure, through the space between the cathodically connected workpiece and the anode and a smaller proportion of it is conveyed at a lower flow rate upwards to the rear of the anode away from the cathode. After leaving the electrolysis region the electrolyte is taken into a separate overflow tank and conveyed therefrom again into and around the electrolysis region between the anode and the cathode. Anode sludge is separated off in the overflow tank and/or in the feedback system. The device for implementing said process has an actual electrolysis tank (1.01), inlet lines (1.05) or apertures (1.06, 1.07) for the electrolyte at the base of the chamber between the cathodically connected workpiece (1.04) and the anode (1.03) or below behind the anode, at least one overflow tank (1.08) connected on or beneath the electrolysis container into which the electrolyte is fed after passing though the electrolysis region and a feedback device for the electrolyte with a filter (1.11).
IPC 1-7
IPC 8 full level
C25D 5/08 (2006.01); C25D 21/06 (2006.01)
CPC (source: EP US)
C25D 5/08 (2013.01 - EP US); C25D 21/06 (2013.01 - EP US)
Citation (search report)
See references of WO 9521952A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9521952 A1 19950817; AU 5968594 A 19950829; DE 59402538 D1 19970528; EP 0694090 A1 19960131; EP 0694090 B1 19970423; US 5716509 A 19980210
DOCDB simple family (application)
CH 9400031 W 19940215; AU 5968594 A 19940215; DE 59402538 T 19940215; EP 94905645 A 19940215; US 53277195 A 19950928