Their heat treatment particle is hardened in continuous flow -- by uniformly across the pipe with closed wall and extending through the room with the entrance for steam or hot gas

摘要

A method for bonding wood plies (1a, 2b) together comprises the steps of (i) forming passages (2) in at least one of faces of the wood plies, except faces thereof for providing opposed faces of a bonded wood product, (ii) placing the wood plies (1a, 1b) on one another with a thermosetting adhesive material or materials between, and (iii) pressing the wood plies (1a, 1b) together transverse to the opposed faces of the wood plies, while blowing a heating fluid into the passages (2) to heat and harden the adhesive material or materials. The passages (2) should preferably be evenly distributed on the face of the wood ply (1a, 1b) to uniformly heat and harden the adhesive material. According to one embodiment of the invention, the passages (2) extend from one edge of the wood ply (1a, 1b) to an opposed edge thereof. Steam or hot air may be used as the heating fluid. IMAGE