Wood deformation and cracking is due to the internal stress caused by the. The root cause for this change is because the wood moisture content change. Because wood is composed of many rings, plate and rotary cutting of two surfaces of ring age is not equal, figure ground says: the age of a face water reflect the slow, and the age of a small face water quick reaction. Therefore, under the same conditions, the older side surface change no age small side surface area change is big. Because the wood no ductility, the narrow area of one side only by cracking to increase the surface area to maintain balance. So we say that the cracking is closely related with the deformation and moisture content of wood.
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Wood deformation and cracking of why the relevant index and water?
Source： Time：2013-04-27 10:26:11 views：
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