First, shavings: It is the manufacturing workshop for raw materials in the entire board production. It mainly cuts the loose wood into wood chips that meet the production specifications to provide better conditions for fiber separation.
Second, hot grinding, wood chips cut from the chipping workshop were preheated and steamed, and the fibers were mechanically separated.
Third, the fiber drying: thermal grinding milled fiber plus sizing makes the fiber moisture content of 40% -50%, if not difficult to adapt to the follow-up section after drying the fiber, in this process section, the main control drying temperature is about 165 °C, not Can cause resin pre-curing, thus affecting the plate's MOR and IB, and other mechanical properties.
4. Pavement: It will be dried and stored in the fiber silo for a period of time. After feeding the fan to the paving machine, vacuum fiber is used to realize rough shaping of the fiber. Then, the forming process of the plate is broken through the stripping roller and the pre-pressing machine. .
Fifth, hot pressing: It is an important process for the manufacture of MDF. It plays a decisive role in product quality and production. It is the combination of heat and pressure, moisture in the slab vaporizes, evaporation, and density increase. Re-distribution of adhesives, adhesives, and water repellents will cause a series of changes in the components of the raw materials so that various binding forces will be formed between the fibers and the products will reach and meet the quality requirements.