Device and method for preparing and/or coating the surfaces...

Details Device and method for preparing and/or coating the surfaces... Device and method for preparing and/or coating the surfaces...

C - Chemistry, Metallurgy

23

C

C23C 10/06 (2006.01) C23C 8/06 (2006.01) C23C 10/48 (2006.01)

Patent

CA 2246805

The invention relates t;o an apparatus and a method for preparing and/or coating the surfaces of metallic hollow structural elements, that comprise at least two connection openings between their outer and inner surfaces. In order to achieve this, first at least two reaction gas mixtures (I, II) are prepared by means of reaction gas sources for treating the outer and inner surfaces of the hollow structural elements, and the first reaction gas mixture (I) is guided over the outer surfaces and thereafter over the inner surfaces of the structural elements, while the second reaction gas mixture (II) is guided over the inner surfaces and thereafter over the outer surfaces of the structural elements.

L'invention concerne un dispositif et un procédé pour préparer et/ou revêtir les surfaces d'éléments de construction creux comportant au moins deux ouvertures reliant leurs surfaces extérieures et intérieures. Tout d'abord, au moins deux mélanges de gaz réactionnels (I, II) destinés au traitement des surfaces extérieures et intérieures des éléments de construction sont préparés à l'aide de générateurs de gaz, et le premier mélange (I) est passé sur les surfaces extérieures puis sur les surfaces intérieures des éléments de construction tandis que le second mélange (II) est passé sur les surfaces intérieures puis sur les surfaces extérieures des éléments de construction.

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