Wood drying, the dryer the better?

Fresh wood contains a lot of water, in a specific environment, the water will continue to evaporate. The natural evaporation of moisture will lead to the emergence of dry shrinkage, cracking, bending deformation, mildew and other defects, affect the quality of wood products, therefore, lumber is made from wood for (control) before drying process.

This is a reasonable use of wood, make lumber value-added important technical measures, is an indispensable first wood products production process.But not to say that the timber as dry as possible?A lot of people in the know on this point.Experts made the following analysis: wood under certain circumstances, after a period of time, its moisture content will tend to be a balance value, referred to as the equilibrium moisture content of the environment.When a piece of lumber moisture content is higher than the environment balance moisture content, the wood will platoon is wet contraction, vice of hygroscopic and expansion of will.In the Beijing area, for example, equilibrium moisture content of 11.4%, guangzhou equilibrium moisture content of 15.1%, if put the dry to 11% of the wood in Beijing is appropriate, but put the wood in guangzhou will be hygroscopic expansion, deformation.So, according to local conditions appropriate processing of wood drying, not as dry as possible.