PANEL FORMING Russian patent published in 2016 - IPC B44C5/04 

FIELD: construction.

SUBSTANCE: present invention relates to the field of forming of panels, e.g. building panels, more particular, the disclosure relates to a method of forming floor panels and floor panels produced by the method. Method for producing panel (1) with a wood based core (3) and surface layer (2) comprising a thermosetting resin, comprises the steps, wherein curing and connecting surface (2) layer to core (3) while applying heat and pressure in a first main pressing step, thus raising a temperature of the surface layer above an initial temperature; after first main pressing step to panel (1) bending force (F) is applied that the panel springs in a way, that an uppermost surface of the panel is convex an a lowermost surface of the panel is concave while the panel is still above the initial temperature; and releasing the bending force such that the panel springs back to an essentially flat shape.

EFFECT: technical result is the panel manufacturing with the based core and the surface layer containing thermosetting resin, by more controlled and effective way in terms of process costs, at reduction of stresses occurring during curing the thermosetting resin during heating and pressing of the panel.

20 cl, 1 ex, 6 dwg