How to process and dry logs

Manual drying method: wood is sealed in a steam drying room, and water evaporation is promoted by steam to dry the wood. The highest drying degree can make the moisture content of wood reach 3%. However, the wood after high temperature evaporation is damaged, which is easy to become brittle and lose toughness, which is not conducive to carving. Generally speaking, the dryness of logs should be kept at about 30% moisture content.

Simple manual drying method: first, dry the moisture inside the wood with fire. The second method is to boil the resin in wood with water and then air-dry. This method is called water immersion air-drying method. These two methods can shorten the drying time and reduce the variability of trees, but they are only suitable for small pieces of wood (put in asphalt barrels), which are easy to change color and damage wood after soaking.

Natural drying method: air drying method is usually used. Classify sawn wood (boards, squares or circles) and pile them up. The bottom of the stake is 500-700 mm from the ground, and there is a gap in the middle, so that air can circulate and take away water, and the wood will gradually dry. Natural drying usually takes several years and months to make wood meet certain drying requirements.

Microwave drying method: 1, the internal and external temperatures of wood are basically the same. Because microwave penetrates wood, directly excites water molecules and generates heat, and the internal temperature is slightly higher than the external temperature, it can avoid the problems of deformation, cracking and drying shrinkage caused by temperature gradient in traditional heating drying wood to the maximum extent, and can significantly improve the utilization rate of wood. 2, the wood is well formed, and the wood semi-finished products can be directly dried. Microwave drying of wood can completely eliminate the internal stress of wood, so the wood products after primary processing can be dried. Break the traditional furniture production process, that is, first dry the board and wood square, then cut it into parts for processing, first process the board and wood square into various straight and curved specifications according to the needs of furniture structure, and then dry it with microwave.