Composite board is generally a wooden composite composed of two different materials with different properties, the core layer and the surface layer, which are glued together. It is generally called sandwich board, and its surface plate is generally thinner, while the core layer is thicker. This type of lamination
Structure is actually a thin shell structure. The surface layer is usually made of veneer, thin plywood, thin fiberboard, thin wood, or paper decorative boards. The materials for the core layer are mostly wood shavings, fibers, broken wood
Bagasse, sawdust, cotton stalk scraps or light foam, etc. According to needs, the structure can also be divided into two categories: solid core and hollow core.
By utilizing these materials for production, the utilization rate of wood can be improved, and more importantly, the composite effect can be utilized to improve the physical and mechanical properties of the material. If dimensional stability is improved, resulting in low density and resistance
Increased rigidity and increased material properties such as insulation, fire resistance, wear resistance, and corrosion resistance
The core layer and structure of wooden composite materials have a significant impact on their physical and mechanical properties. If used as a lightweight structural material, the core layer can choose structures such as lightweight or hollow wood frames. If used as sound insulation, insulation
Materials, the core layer can choose materials with less density and low strength, such as light wood, foamed plastic and other lightweight porous materials. No matter what material is used for the surface and core layers, they all need to use adhesives
They are firmly glued together. If the two are not firmly bonded, the surface material and core plate will peel off, leading to damage.
Regardless of the structure of the board, its production methods can be divided into two categories: primary processing completion and secondary processing completion.
Once processed, the production of the board is completed by pre making a surface layer of thin board or other materials, and then laying a core layer material between the two surface layers, which is then glued together in one go
After the secondary processing is completed, the core layer board is first made, and then the core layer material is bonded with the two surface layer materials to form a composite board.