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Patent
Title
Verfahren zum Herstellen von Flachspaenen aus Holz
Other Title
Flat chippings producing method for structure oriented derived timber product e.g. cellulose containing plates, involves subjecting preliminary product to hydrothermal treatment, and subjecting product to chipping or splitting
Abstract
(B3) Die Erfindung betrifft Verfahren zum Herstellen von Flachspaenen fuer strukturorientierte Holzwerkstoffe. Das Verfahren umfasst die folgenden Verfahrensschritte: - es wird aus lignozellulosehaltigem Material ein Vorprodukt erzeugt; - das Vorprodukt hat eine Laenge von zwischen 20 und 200 mm; - das Vorprodukt wird einer hydrothermalen Behandlung unterworfen; - die Einwirkungsdauer betraegt wenigstens drei Minuten, und die Einwirkungstemperatur betraegt wenigstens 40°C; - das Vorprodukt wird einer Zerspanung oder Spaltung unterworfen.
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DE 102007003698 B3 UPAB: 20080604 NOVELTY - The method involves producing a preliminary product from a cellulose containing material, where the preliminary product exhibits a length between 20 and 200 millimeters. The preliminary product is subjected to a hydrothermal treatment. The exposure time of the hydrothermal treatment amounts to three minutes, where the exposure temperature amounts to 40 degree Celsius. The preliminary product is subjected to chipping or splitting. USE - Method for producing flat chippings from wood for a structure oriented derived timber product e.g. cellulose containing plates or formed parts. ADVANTAGE - The method facilitates production of the strand material from preliminary products such as maxi chips and flat chips, which contains high portion of expressed laminar strands and less fine goods portion, and requires less energy for chipping.
Inventor(s)
Loth, R.
Thole, V.
Patent Number
102007003698
Publication Date
2007
Language
German