Abstract:
A method for densifying a hygroscopic material is disclosed. The method is for hygroscopic material which may be a natural hygroscopic material or wood—The method comprises the steps of providing the hygroscopic material to be densified; pre-conditioning of the hygroscopic material by adjusting the moisture content of the hygroscopic material to a value within a predefined moisture range, if required; simultaneously heating and pressing the gas-tight packed hygroscopic material under predefined temperature and pressure conditions, whereby the moisture content of the hygroscopic material is kept constant; and obtaining a densified material.
Abstract:
Method for manufacturing diagonal plywood is disclosed. The method uses a rectangular-shaped plywood board or a joined plywood board made of a plurality of plywood boards having the same thickness and joined together into a rectangular shape is prepared. The rectangular-shaped board or joined board is cut diagonally with respect to any pair of parallel sides of the board along diagonal parallel lines spaced at a predetermined interval into a plurality of cut boards having a shape of parallelogram or trapezoid. Subsequently, the cut boards are joined together side-to-side into a joined elongated board in such a way that the opposite parallel sides thereof form the elongated sides of the resulting joined elongated board. The joined elongated board is cut across the elongated sides thereof into a plurality of rectangular-shaped boards of any desired dimension.
Abstract:
A method for manufacturing plywood includes receiving a face sheet on a main conveyor and feeding a plurality of pieces of core veneer onto a veneer conveyor by an automated core veneer feeder. The method also includes removing one or more of the plurality of pieces of core veneer from the veneer conveyor and placing the one or more of the plurality of pieces of core veneer onto the face sheet.
Abstract:
A pliable bentwood laminate with an intermediate layer (2), in particular forming a central layer, having a first and a second surface side, wherein on the first surface side a first outer timber layer (3) is provided, and on the second surface side a second outer timber layer (4) is provided, wherein the distance between the outer surface of the first outer timber layer (3) and the outer surface of the second outer timber layer (4) amounts to at least 8 mm, wherein the first and second outer timber layers (3, 4) are formed from peeled balsawood veneer, and wherein the density of the first and second outer timber layers (3, 4), with a residual moisture content of 12% by weight with respect to the timber mass, amounts to less than 200 kg/m3, and wherein the first and second outer timber layers (3,4) have peeling cracks (5) on one surface side, wherein, the first and second outer timber layers (3, 4) are arranged such that the surface side having the peeling cracks (5) is facing away from the intermediate layer (2) and wherein, the bentwood laminate can be curved and/or is curved with an inner bending radius from a range of values of between 100 mm and 250 mm, and wherein, the intermediate layer is designed as a directional timber layer, and wherein, a neutral fibre of the bentwood laminate runs in the intermediate layer, and in that, timber fibres of the directional intermediate layer run at right-angles to the longitudinal extent of the peeling cracks of the first and second outer timber layers (3, 4).
Abstract:
Multi-layer moulding having a high structural load-carrying capacity with two opposing broad faces and a laterally peripheral end face, containing, in layers, broad face on broad face, layered wood veneers and, lying between the wood veneers, adhesives. The wood veneers are layered in such a way that the grain of at least one of the wood veneers deviates from the grain of one or the other wood veneers by 45° to 90° and in that the grain of the wood veneers deviates by 22.5 to 67.5° with respect to a surface normal to an end face of the moulding.
Abstract:
A simulated commodity tropical hardwood-based panel includes an engineered veneer face including a first wood from one or more sustainable sources of wood. The face has a dyed coloring, a simulated grain, or a dyed coloring and a simulated grain that is substantially similar to the coloring, grain, or coloring and grain of a tropical hardwood veneer. The panel further includes a back and a core disposed between the face and back. The face, the core and back are stacked and adhered together to form a laminated panel. The face of the simulated commodity tropical hardwood-based panel has an appearance that is substantially similar to the appearance of the face veneer of a commodity tropical hardwood-based panel that includes the tropical hardwood veneer. The panel comprises no tropical hardwood from a non-sustainable source of wood.
Abstract:
Multi-layer moulding having a high structural load-carrying capacity with two opposing broad faces and a laterally peripheral end face, containing, in layers, broad face on broad face, layered wood veneers and, lying between the wood veneers, adhesives. The wood veneers are layered in such a way that the grain of at least one of the wood veneers deviates from the grain of one or the other wood veneers by 45° to 90° and in that the grain of the wood veneers deviates by 22.5 to 67.5° with respect to a surface normal to an end face of the moulding.
Abstract:
A multilayered bamboo article and a method for making the same is disclosed. Strips of bamboo with roughly square cross sections are secured together into layers in which the layer has parallel grain orientations. These layers are then combined together in perpendicular grain orientations to form a multilayered bamboo article. The bamboo strips and layers are secured together using a glue resistant to high temperatures when cured resulting in a strong multilayered bamboo article resistant to the effects of hot water.
Abstract:
A method and apparatus for producing endless (infinite length) lamination of elongated substrate pieces and elongated face layer pieces of random variable length.
Abstract:
An apparatus having several stations that receive, apply adhesive to, crowd, press and cure the wood pieces into a continuous wood panel. A singulation station engages an individual one of the wood pieces oriented in a cross-machine direction from an infeed station, presents the wood piece to an adhesive station for adhesive application and releases the wood piece for crowding at a crowding station into a batch of the wood pieces. A press station downwardly presses the batch with an upper platen and presses the batch in a downstream direction onto the continuous wood panel with a clamping device. A radio frequency device applies radio waves to cure the adhesive between the wood pieces of the batch so as to adhere the wood pieces together and so as to adhere the batch to the continuous wood panel. A cutting station cuts individual wood panels from the continuous wood panel.