Low density oriented strand board

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 21/02 (2006.01) B27N 3/04 (2006.01) B27N 3/18 (2006.01) E04C 2/02 (2006.01) E04C 2/30 (2006.01)

Patent

CA 2682956

A low density oriented strand board has an average density of less than about 1.5 times the density of wood species used in the board and a homogenous vertical density profile. Low density OSB may be formed by preheating the wood finish prior to pressing, controlling the moisture content such that the core layer has a higher moisture content than the face layers, or a combination of pre-heating and moisture content control.

Panneau à copeaux orientés (OSB) à faible densité ayant une densité moyenne inférieure à environ 1,5 fois la densité d'essences de bois utilisés dans un panneau, et comportant un profil de densité vertical homogène. Les panneaux OSB peuvent être formés par le préchauffage du fini de bois avant le traitement, en contrôlant la teneur en humidité de façon à ce que la teneur en humidité de la couche intérieure soit plus élevée que celle des couches de surface extérieures; la formation des panneaux peut également faire appel à une combinaison de préchauffage et de contrôle de la teneur en humidité.

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