Patent ID: 6599456
Filing Date: 2003-07-29
Classification: B27N,B29C,B30B

Abstract:
A method for the production of boards of ligneous material comprising:forming a press material mat treated with a binding agent on a continuously moving spreading band; introducing the mat between the steel bands of a continuously operating hot press; applying pressure and heat to said mat in the continuously operating hot press; curing the mat into a hot board strand in the continuously operating hot press; then moistening both surfaces of the hot board strand; shock cooling the hot board strand with sprayed water in a first cooling section with an evaporation zone variable in its length and adaptable to the thickness of the board strand wherein the board strand is held between endless blocking bands under multiple calendar rolls; and carrying the board strand to a directly adjoining second cooling section under a predetermined light pressure through a double-band hold-down apparatus wherein the backs of the hold-down bands are sprayed with a coolant.