B - Operations – Transporting – 27 – N
Patent
B - Operations, Transporting
27
N
B27N 3/18 (2006.01) B27N 3/24 (2006.01) B27N 7/00 (2006.01) B44C 5/04 (2006.01)
Patent
CA 2236633
The invention relates to a process for producing sheets made from wood-derivatives, such as chipboard or fibreboard, from a mixture of particles containing wood cellulose and/or cellulose, such as chips, fibres and shavings etc., which have been treated with a bonding agent, the individual particles being sprinkled from a spreader on to a moving moulding belt to form a mat of material to be pressed and this mat being delivered to a multilayer or a continuous press and pressed and hardened under pressure and heat conditions. For the purpose of effecting the structuring and production in an operating cycle the invention consists of subjecting the newly finished wood-derivative sheet exiting from the pressing stage to a single-side or two-side structuring process.
L'invention a trait à un procédé de production de feuilles comme des panneaux de particules ou des panneaux de fibres de bois à partir de produits dérivés du bois. Le procédé consiste à utiliser un mélange de particules contenant de la cellulose de bois et/ou de la cellulose comme des copeaux, des fibres et des rognures, etc. qui ont été traités avec un liant; les particules sont ensuite pulvérisées par un diffuseur sur une bande mobile de moulage pour former une couche de matériel à presser qui est livrée à une presse multicouche ou continue pour être pressée puis durcie sous l'effet de la pression et de la chaleur. Pour améliorer le formage et la production des panneaux au cours du cycle de traitement, l'invention propose de soumettre les nouveaux panneaux finis obtenus par pressage à un procédé de formage d'une seule face ou de deux faces.
Kirby Eades Gale Baker
Maschinenfabrik J. Dieffenbacher Gmbh & Co.
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