| 摘要 |
A line for producing a hydraulic-binder-based board from a preform consisting of a facing material covered with a hydraulic binder composition and supported by a conveyor belt (7), wherein the line includes at least two forming tapes (301, 302) fitted with longitudinal tapes and a device that produces an impression in the upper part of the preform before the first forming tape. Such device suitably comprises at least a frame (101), two first pulleys (102, 103), two second pulleys (105, 106), two transmission belts (108, 109) and at least one wire (111) fixed removable to the belts. |
