How does a wood dryer solve wood defects

The wood dryer is a device used for drying in the wood processing industry. Regarding the many problems faced in the processing process, the most serious one is the problem of wood defects. Let's introduce the equipment to deal with wood defects: The sapwood of most tree species is more susceptible to fungal damage than the heartwood with higher extractive content.
These blemishes often appear in the early stages of drying when the lumber moisture content is above the fiber saturation point, and when nutrients, moisture, oxygen and wood temperature meet the needs of the fungus. Sapwood discoloration, decay and decay occur when wood is left to dry or under certain dry conditions.
Timber drying occurs shorter, resulting in different drying defects in tree species. When the tensile stress of the outer layer goes back to compensate the compressive stress of the inner layer, when the tensile stress of the outer layer exceeds the elastic limit, the wood will deform. In the initial or early stage of drying, the outer layer of the board loses moisture, and if it reaches the fiber saturation point, the outer layer begins to shorten.
The drying equipment selected by the wood drying equipment has high heat, so it has a very important effect on the drying of wood, and can also deal with the defects existing in the traditional equipment. It has become a popular drying in the new century. equipment.