Panel forming

摘要

Building panels, especially laminated floor panels are shown, which are provided with a locking system and several core grooves at the rear side in order to save material and decrease weight. Building panels, each having a surface layer on a front side, a backing layer on a rear side and an intermediate core, wherein the intermediate core and the surface and the backing layer all comprise wood fibers and thermosetting resins, said building panels are provided with a locking system for vertical and horizontal locking of a first edge of a first building panel to an adjacent second edge of a second building panel.

主权项

1. A method to produce floor panels, each of the floor panels having a surface layer on a front side, a backing layer on a rear side and an intermediate core, wherein the intermediate core, the surface layer and backing layer all comprise wood fibers and thermosetting resins, the method comprising:
creating wood fiber chips by forming at least one core groove in a rear side of a previously produced floor panel; producing a mix by mixing the wood fiber chips with a thermosetting resin; scattering the mix on at least one of an upper side and a lower side of a core; forming a board from the core and the mix by curing the mix under heat and pressure; and cutting the board into a plurality of floor panels.