In real time, all kinds of wood have quite good dimensional stability. For example, Ming and Qing furniture, which has been in existence for hundreds of years, is still intact. The problem you are experiencing is essentially a problem between the moisture content of wood in the drying of wood and the moisture content of the local earth. When the moisture content of the wood is greater than the moisture content of the local earth, the water molecules in the wood move to the atmosphere due to the various The imbalance of internal stress caused by the difference in direction causes cracking, warping, and deformation of the wood.
Conversely, when the moisture content of the wood is less than the moisture content of the local earth, the wood will absorb water into the atmosphere, and the size of the wood will inevitably change.
Solution: When the wood is dry, the drying process should be based on the moisture content of the wood and the local atmospheric moisture content. Apply a layer of varnish to the current wood to isolate the movement of moisture. To a certain effect, such as logs, a layer of tar can be applied to the cross section at a low cost.
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