摘要:
The present disclosure provides embodiments of a lapper assembly for use to overlap successive sheets of wood veneer or other materials along a conveyor. The lapper assembly may include a stop member configured to be rotatably mounted to a roller such that the stop member is pivotable around the rotational axis of the roller independently of the rotational angle of the roller. The lapper assembly may further include a lever arm coupled to one end of the stop member. An actuator may be pivotably coupled to the lever arm and the conveyor frame, and operated to pivot the stop member between a workpiece engaging position, in which the stop member extends into the path of workpiece flow, and a workpiece disengaging position below the path. Optionally, the lapper assembly roller and other rollers upstream/downstream may be operatively connected to a drive. Corresponding systems and methods are also disclosed herein.
摘要:
The present disclosure relates, according to some embodiments, to methods and systems for impregnating wood with a polymer solution and products thereof. In some embodiments, the present disclosure relates to a method of processing a wood piece to generate a wood product, the method comprising: (a) placing the wood piece into a reactor having a chamber pressure of a vacuum environment; (b) exposing the wood piece to a polymer solution; (c) performing an iterative process where each cycle of the iterative process comprises a pressurizing period during which the chamber pressure is increased to an increased chamber pressure and a stabilizing period during which the chamber pressure is monitored to measure a chamber pressure decrease, if any; (d) when the decrease of chamber pressure during the stabilizing period is less than or equal to the certain threshold change, normalizing the reactor chamber to a normalized pressure; and (e) setting the wood piece to generate the wood product. The present disclosure further relates to a wood product generated by a method of processing a wood piece.
摘要:
Gegenstand der Erfindung ist ein Verbundwerkstoff mit zwei oder mehreren übereinander angeordneten Schichten eines Holzes, wobei die Schichten untereinander mit einem Einkomponenten-Polyurethan-Klebstoff, enthaltend ein Prepolymer mit freien NCO-Gruppen, verbunden sind und ein Holz mit einem Volumenanteil an Libriformfasern im Bereich von 50 bis 70 % eingesetzt wird.
摘要:
The invention relates to a method for preparing a wood veneer plate. In the method, resin is applied on wood veneer surfaces, the wood veneers are piled on top of each other and hot pressed together for curing the resin. Resin is applied on surfaces which face each other when piled such that the resin is applied on at least 50%, advantageously at least 75%, most advantageously 100% of the surfaces facing each other when piled.