木材干燥的基本原理是:利用本材内部存在的含水率梯度差和加热后形成的水蒸汽压力差,促使水分由内部向外部移动,并通过木材表面向外界蒸发:内部的水分移动速率与表面的水分蒸发速率应当协调一致,使木材由表及里均衡地变干。下文以用湿空气为介质的强制循环窑干法为例阐述木材干燥原理。 The basic principle of wood drying is: the use of this material exists within the gradient of moisture content and water vapor pressure difference after heating to promote the movement of water from the inside to the outside, and through the wood surface to the outside world evaporation: the rate of movement of water and the surface The rate of moisture evaporation should be harmonized so that the wood dries evenly from the surface to the surface. The following text uses wet air as a medium for forced circulation kiln dry method as an example to illustrate the principle of wood drying.