Wood-based panel hot pressing process
The production of various wood-based panels follows a specific production process.
Different types of wood-based panels have different hot-pressing processes in the product hot-pressing stage.
For example, in the production of melamine impregnated paper veneer, the hot pressing process
Generally divided into constant temperature (145 ~ 165 t ) pressurization, pressure holding (about 2 ~
3 MPa), three stages of pressure relief [1°]; while medium density fiberboard (MDF)
The hot pressing process of production is usually pressurization (3. 5 ~ 5. 5 MPa), decompression,
Pressure holding (1 MPa), secondary pressurization (1 ~ 1.5 MPa), five stages of pressure relief
Section , the temperature is about 160 ~ 195 where the pressurized pressure, temperature and
And hot pressing time and other process parameters also need to be based on raw material conditions, tree species, board
Billet moisture content, finished plate thickness, equipment type (multi-layer hot press/continuous heat
Press) and other conditions are adjusted appropriately [11^ 2].
In the hot-pressing production of wood-based panels, meeting the requirements of the hot-pressing process is the guarantee
The most important condition to ensure product quality is also the mechanical
The basic conditions and criteria that must be met in the design of structure and control system,
Discuss the working principle of the heat press machine necessary to achieve the heat press process of the product
needs as a prerequisite.
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