Method for manufacturing damping or noise insulating plate as impact sound insulation made of wood fiber in dry process without active redrying, involves drying wood fiber below ten percent atmosphere of wood

摘要

The method involves drying wood fiber below 10 percent atmosphere of wood and simultaneously or after gluing with a water-free binding material, particularly polymeric methylene diphenyl diisocyanates (PMDI) belonging to a group of reactive isocynate. The damping or noise insulating plate (12) made of wood fiber or different material soluble in a refiner. The diffused matter is ventilated with a precompassing unit before an entry in the continuously working calibrated and hardening unit (8) for manufacturing of damping or noise insulating plate with a product concentration. An independent claim is included for a plant for manufacturing damping or noise insulating plate made of wood fiber in dry process without active redrying.