Method for manufacturing a high strength lumber

Details Method for manufacturing a high strength lumber Method for manufacturing a high strength lumber

B - Operations, Transporting

27

M

B27M 1/08 (2006.01) B27M 1/02 (2006.01) F26B 3/347 (2006.01) F26B 7/00 (2006.01)

Patent

CA 2236870

A method for manufacturing a high strength lumber obtained by artificially compressing a volume of grown natural wood without any destruction of wood tissue, and which is made such that a pine tree is lumbered and exposed to a microwave whereby moisture content is forcibly discharged and cellulose is softened and thereby volume is constricted up to more than 70% by a hydraulic press during a latent heat is still present, so that a high strength lumber is obtained without any destruction of lumber tissue and due to this, a strength and hardness are improved about 30 times of original wood and a tensile strength is increased about up to 10 times of original wood.

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