Method of producing a laminated wood product, and laminated wood products
A method of forming a laminated wood product adapted for receiving a load in a direction perpendicular to a principal fiber direction of the wood. The method comprises cutting a log along the principal fiber direction of the log, into a plurality of wood lamellae (20a, 20b), such that the wood lamel...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A method of forming a laminated wood product adapted for receiving a load in a direction perpendicular to a principal fiber direction of the wood. The method comprises cutting a log along the principal fiber direction of the log, into a plurality of wood lamellae (20a, 20b), such that the wood lamellae are formed as radial sections of the log, forming the wood lamellae to provide each wood lamella with a trapezoidal cross section, whereby the wood lamellae present a respective planar major base surface (bs1) that is formed at a radially outer part of the log and a respective planar minor base surface (bs2) that is formed at a radially inner part of the log, arranging the lamellae as at least one layer in which planar major base surfaces of immediately adjacent lamellae face opposite directions, and gluing together the lamellae side surface to side surface (ss1, ss2) such that a wood billet is formed, wherein the gluing comprises wet gluing at a moisture content of the wood lamellae greater than 25% by dry mass, whereby the billet has a thickness which is more than 75% of a radius of the log from which the lamellae were formed. The invention allows for forming a wood product that improves usage of timber raw material and provides beams having improved strength and/or reduced variation in strength between different beams. |
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