B - Operations – Transporting – 27 – K
Patent
B - Operations, Transporting
27
K
B27K 3/08 (2006.01)
Patent
CA 2548480
A process for the treatment of wood including: placing the wood to be treated in a treatment vessel and applying a vacuum; exposing the wood to a treatment solution while substantially maintaining said vacuum; applying a predetermined pressure to the wood for a period of time sufficient to partially impregnate the wood with the treatment solution; reducing the pressure within the treatment vessel and concurrently emptying the treatment vessel of treatment solution; whereby immediately after said reduction of pressure within the treatment vessel, the partially impregnated wood includes an unimpregnated inner zone which has a residual vacuum elevating seepage of treatment solution from the partially impregnated wood.
L'invention concerne un procédé de traitement du bois. Ce procédé consiste : à placer le bois à traiter dans une cuve de traitement et à appliquer un vide ; à exposer le bois à une solution de traitement tout en maintenant sensiblement le vide ; à appliquer une pression prédéterminée sur le bois, pendant une période suffisante pour imprégner partiellement le bois au moyen de la solution de traitement ; à réduire la pression à l'intérieur de la cuve de traitement et à vider simultanément ladite cuve de la solution de traitement. Ainsi, immédiatement après la réduction de pression à l'intérieur de la cuve de traitement, le bois partiellement imprégné présente une zone intérieure non imprégnée dont le vide résiduel augmente le suintement de la solution de traitement du bois partiellement imprégné.
Kirby Eades Gale Baker
The University Of Melbourne
LandOfFree
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