PRODUCTION PROCESS FOR BOARDS WITH FOUR FEATHERED EDGES BASED ON HYDRAULIC BINDER, LINE FOR THE PRODUCTION OF SUCH BOARDS

摘要

The invention relates to a production process for a board made of hydraulic binder having a facing on each of its sides, comprising on one side two first feathered parallel edges (10) and on the same side or the other side two second other feathered parallel edges (25bis) perpendicular to the first ones, said process comprising the use of a forming lath (6) having at least two distal parts (61, 62). The invention also relates to a production line and a specific lath.