Wood composite forming and curing system

Details Wood composite forming and curing system Wood composite forming and curing system

B - Operations, Transporting

27

N

18/1012, 18/1172

B27N 3/06 (2006.01) B27N 3/08 (2006.01) B27N 3/14 (2006.01) B27N 3/16 (2006.01) B27N 3/18 (2006.01) B29C 35/08 (2006.01) H05B 6/64 (2006.01)

Patent

CA 2025555

WOOD COMPOSITE FORMING AND CURING SYSTEM ABSTRACT OF THE DISCLOSURE Adhesive coated wood strands are laid up on a conveyor belt and conveyed thereon to a microwave curing press. Due to uneven temperature or moisture profiles of the layup and/or uneven micro- wave deposition patterns in the press, the structure wood products thereby formed in the past had uneven density profiles. This reduces product strength and product properties especially after wetting. Before entering the press the moisture and/or temperature profiles of the layup are controllably altered according to this invention thereby improving the resulting density profiles. Moisture and/or temperature levels of predetermined areas of the mat are increased or decreased to obtain the desired pre-press profiles. The profiles can be adjusted for example by the application of hot steam to the lower mat surface directly or the conveyor belt directly and the mat thereby indirectly, and/or the application of a water spray and cooling fan air to the same or different mat layers.

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