Global patent index - EP 0969146 A1

EP 0969146 A1 2000-01-05 - Device for the cathodic protection of a coating element in a paper coating installation

Title (en)

Device for the cathodic protection of a coating element in a paper coating installation

Title (de)

Vorrichtung zum kathodischen Schutz von Auftragselementen einer Papierstreichanlage

Title (fr)

Dispositif de protection cathodique d'un élément de couchage dans un appareil d'enduction de papier

Publication

EP 0969146 A1 (DE)

Application

EP 99112510 A

Priority

DE 19829491 A

Abstract (en)

The coat application elements (9, 10) consist of an electrically conductive material and are electrically connected to at least one sacrificial anode (3, 3a). The latter is in electric contact with an aqueous anionic coating material (4), and consists of a material which in terms of the electric potential is less noble than the material of the coat application elements.

Abstract (de)

Die Erfindung betrifft einen kathodischen Korrosionsschutz von Auftragselementen (9, 10) einer Papierstreichanlage. Dazu ist eine Opferanode (3, 3a) vorgesehen, die in einer wäßrigen anionischen Streichmasse (4) als Elektrolyten angeordnet ist. Das bzw. die Auftragselemente sind mit dem Minuspol einer Gleichspannungsquelle (6) verbunden und als Katode geschaltet. Als Auftragselemente sind Streichrakel (10), Dosierlamelle (9) oder Egalisierungsstäbe vor Auftragswalzen vorgesehen, die aus einem korrosiven Material wie Eisen oder einer Eisenlegierung bestehen. Dabei ist als Opferanode (3, 3a) ein Werkstoff vorgesehen, der in der Spannungsreihe unedler ist als der vorgesehene Werkstoff der Auftragselemente (9, 10). <IMAGE>

IPC 1-7 (main, further and additional classification)

D21H 23/22; C23F 13/02

IPC 8 full level (invention and additional information)

B05C 11/02 (2006.01); B05C 11/04 (2006.01); C23F 13/02 (2006.01); D21H 23/22 (2006.01)

CPC (invention and additional information)

D21H 23/22 (2013.01); B05C 11/023 (2013.01); B05C 11/04 (2013.01); C23F 13/02 (2013.01)

Citation (applicant)

DE 3931793 A1 19900329 - BTG KAELLE INVENTING AB [SE]

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0969146 A1 20000105; EP 0969146 B1 20030917; AT 250163 T 20031015; DE 19829491 A1 20000105

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