Method of coating an article

C - Chemistry – Metallurgy – 23 – C

Patent

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C23C 16/26 (2006.01) A63B 49/02 (2006.01) A63B 53/00 (2006.01) A63B 53/04 (2006.01) C23C 14/06 (2006.01) C23C 14/48 (2006.01)

Patent

CA 2379704

A method of coating an article (18) wherein the method includes placing a large number N of non-industrial stock pieces (18) in a vacuum chamber (12) where N is a function of the cost of each stock piece, generating a plasma via mechanism (20) about the stock pieces, and supplying a current via power supply (22), modulator (24) and feed through (26) to the stock pieces at a level tailored to sufficiently coat each of the plurality of stock pieces with ions from the plasma and wherein the current level depends on the number N of stock pieces.

L'invention concerne un procédé permettant d'appliquer un revêtement sur un article (18). Ce procédé consiste à placer un nombre N élevé de pièces (18) non industrielles dans une enceinte (12) à vide, N étant une fonction du coût de chaque pièce, à générer un plasma autour des pièces au moyen d'un mécanisme (20) générateur de plasma, et à faire passer un courant sur les pièces au moyen d'une alimentation (22) électrique, d'un modulateur (24) et d'une traversée (26). L'intensité du courant est calculée de manière à assurer un enrobage suffisant de chaque pièce par les ions provenant du plasma, et dépend du nombre N de pièces.

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