C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
C25D 5/02 (2006.01) C25D 5/56 (2006.01) C25D 7/06 (2006.01) C25D 7/12 (2006.01) H05K 3/24 (2006.01)
Patent
CA 2369687
The object of the invention is to provide a process for electroplating a work piece (1) which is coated with an electrically conducting or modified polymer, wherein, independently of the work piece to be electroplated, it is possible to simultaneously reduce the current density and shorten the electroplating time. The invention includes, as a first step, that the work piece is connected to a current source (8) by multiple adjoining contact elements (5) and covered with a thin metallic coat, except at the points covered by the contact elements and that subsequently, in a second step, the contact elements are removed and an unbroken metal coat (10) is formed.
La présente invention concerne un procédé de plaquage électrolytique d'une pièce (1) qui est enduite d'un polymère électro-conducteur ou modifié. En l'occurrence, quelle que soit la pièce à plaquer par voie électrolytique, l'invention permet de réduire la densité du courant tout en raccourcissant la durée du plaquage électrolytique. A cet effet, on commence par relier la pièce à une source de courant (8). On utilise pour cela plusieurs éléments de contacts (5) voisins. La pièce se recouvre d'une fine couche métallique, à l'exception des points couverts par les éléments de contacts. Il ne reste plus qu'à retirer les éléments de contact et à former une couche de métal (10) ininterrompue.
Hupe Jurgen
Kronenberg Walter
Enthone Inc.
Enthone-Omi Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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