Basic knowledge of veneer dryer

The basic knowledge of wood drying equipment, wood drying refers to the process of relying on the energy provided by the outside world to turn the water in the wood into steam and discharge the wood. Wood drying can be divided into natural drying and manual drying.

The most important thing to choose solid wood furniture is to see the internal quality of furniture, that is, the drying of wood. The control of the moisture content of wood is a problem that people can't see and easily ignore when they buy furniture, but this is directly related to whether the furniture will deform and crack. If the drying equipment is not good and the moisture content control is not in place, it is difficult to ensure that the furniture will not deform or crack even if the shape of the furniture is beautiful and the workmanship is fine. Therefore, most small manufacturers produce panel furniture instead of solid wood furniture.

What is the moisture content (weight) of wood? This is mainly determined by the average air humidity in the area. Only when the moisture content of the board is balanced with the humidity of the outside air, can the stability of the furniture be guaranteed, and the deformation and cracking will not occur. The average moisture content of air in different areas is different, 10% in the north and 16% in the south. According to the difference of air moisture content between the north and the south, the state has formulated the regulation that it is qualified to control the moisture content within 12%. Due to the high moisture content of the air in the south, the furniture produced is difficult to adapt to the climate in the north. It can be shrunk by 0.5-1.5mm every 10 cm. It is not suitable for use in the north, and it is easy to deform and crack. The average moisture content of air in North China is the closest to that of wood.

Generally, small enterprises choose to bake or entrust wood processing plants for processing. Generally, the moisture content of the board can only be controlled to about 14%. Moreover, the indiscriminate heating will make the moisture content inside and outside the board uneven. The quality of furniture made of such board is not guaranteed. So we should be vigilant.