D - Textiles, Paper
21
D
D21D 5/16 (2006.01)
Patent
CA 2685390
The invention relates to a method for the production of a screen, and to a screen for the treatment of a fibrous material suspension suitable for the production of a fibrous material web, the screen comprising at least two screen layers (1) that are connected to each other and have passages, wherein at least part of the passages are disposed such that screen openings (3) extending through the screen are created. To this end, the production of the screen is to be simplified in that part of the passages are disposed such that recesses (4), which do not pass through the screen, are created on the front (2) of the screen, and that at least the passages forming the recesses (4) are introduced into the screen layers (1) before the connection thereof.
L'invention concerne un procédé de production d'un tamis et un tamis pour le traitement d'une suspension de fibres adaptée à la production de bandes de matière fibreuse, ledit tamis comprenant au moins deux couches liées et présentant des percées, au moins une partie des percées étant disposée de manière à donner des trous (3) traversant le tamis. Le but de l'invention est de simplifier la production du tamis. A cet effet, une partie des percées est disposée de manière à obtenir sur la face avant (2) du tamis des évidements (4) non débouchants et au moins les percées formant les évidements (4) sont réalisées dans les couches (1) de tamis avant la liaison de ces dernières.
Brettschneider Werner
Gindele Wolfgang
Sim & Mcburney
Voith Patent Gmbh
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