B - Operations – Transporting – 27 – N
Patent
B - Operations, Transporting
27
N
B27N 3/18 (2006.01) B27N 3/08 (2006.01) B27N 3/24 (2006.01)
Patent
CA 2356893
In a method and an arrangement for continuously producing profiled, lignocellulose-containing board or strip-like products the fibre material is disintegrated into particle and/or fibre form, which are then dried, glue- coated and formed into a fibre mat (3). This is pressed into a board or strip- like product (4) while injecting steam. Prior to pressing, the fibre mat (3) is given a surface profile, which is maintained during the steam injection process, whereupon the surface of the board of strip-like product is compressed with this profile.
L'invention concerne un procédé et un dispositif de fabrication en continu de produits lignocellulosiques profilés ayant la forme de planches ou de bandes. Selon ce procédé, la matière fibreuse est désintégrée pour prendre la forme de particules et/ou de fibres, ces dernières étant ensuite séchées, recouvertes de colle et formées en un mat de fibres (3). On presse ce mat en injectant de la vapeur pour lui donner la forme d'un produit en forme de planche ou de bandes (4). Avant de presser le mat de fibres (3), on lui confère un profil de surface qui est maintenu au cours du processus d'injection de vapeur, la surface du produit en forme de planche ou de bandes étant comprimée avec ce profil.
Eriksson N. Lennart
Lundgren Goran
Fetherstonhaugh & Co.
Valmet Fibertech Ab
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