Wood has a small density and a large strength (higher quality coefficient), acid and alkali corrosion resistance, good insulation performance, easy cutting, texture and beautiful color and other excellent properties. A large amount of wood is required in all parts of the national economy such as construction, machinery, vehicles, ships, textiles, agricultural tools, furniture, musical instruments, and aviation. However, products made from undried wood are not guaranteed in quality, so the wood must be dried. After the wood has been dried, the following effects can be obtained.

First, improve the stability of the use of wood and wood products. Long-term exposure of wood to the air will cause swelling and shrinkage, and uneven swelling and shrinkage of wood will often cause cracking and deformation of the wood, affecting the use and causing waste. If you use wet wood or wood without dry wood (such as doors, windows, floors, furniture, etc.), it seems to be good when you just finished, but after a period of time, as the wood dries, the door frame will be skewed and the floor will be Warpage, looseness of the joints or cracking of the board surface cause great losses. If the production unit dries the wood to the required moisture content before use, the stability of the wood product structure can be ensured, and the appearance is beautiful and durable.

Second, to improve the strength of wood and wooden parts, when the wood moisture content is lower than the fiber and saturation point, the strength of the wood will increase as the moisture content of the wood decreases. The dried wood can improve the cutting conditions, improve the strength of the wood structural parts, the bonding strength and the surface decoration quality of the wood products. The thermal and electrical properties of wood change with the change of water content. To improve the thermal insulation and insulation of wood, it is also necessary to reduce the thermal conductivity and conductivity by reducing the water content.

Third, prevent the enamel and decay of wood. If wet wood is piled up in the open air for a long time, it will often cause decay or insect damage if appropriate measures are not taken. When the moisture content of wood is reduced to less than 20 %, the damage and destruction of fungi and pests can be greatly reduced. Therefore, generally in the production unit, the wood is dried to a moisture content of about 8-15 %. This not only ensures the inherent properties and strength of the wood, but also improves the corrosion resistance of the wood.

Fourth, reduce the weight of wood. The newly cut wood has a water content that exceeds its own weight. After short-term storage and natural drying, its water content is still high. When the wood is dried through the chamber, its weight can be reduced by about 30-50 %, which is beneficial to improve the carrying capacity of the vehicle.

In short, dried wood can guarantee the quality of wood products, improve the performance of wood and extend the service life, thus saving wood. Practice over the years has proven that wood drying is an indispensable process in production and has become a specialized discipline in science.

Tags: sheet brand , wood, wood-based panels, top ten brands of plates , plates

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