Preliminary experiments show that it has improved the quality of dryness and shows great advantages. It is feasible to use emblem wave technology to dry small-diameter round and oblique sections of Robinia pseudoacacia wood, but the application and development of transporting microbes to drying provide a good opportunity and broad prospects for the microwave power should not exceed 5-W, and each radiation time should not exceed to be foreseen; microwave and microwave combined drying will have its unique heating characteristics and microwave prospects. Drying mechanism plays an important role in wood drying industry in the future. Wang Yankui, Shi Weichun, B. Zhou and others have made extensive studies on the mechanism of wood polarization in microwave field and the factors affecting wood dielectric properties. The results show that the orientation polarization of water molecules in wood can produce a lot of heat, which is the wood medium.
Microwave drying of wood is a new drying method, which can make wood lose in a very short time. The dielectric parameters of wood (including dielectric constant, loss angle plus microwave drying is a new cutting and loss factor) generally increase with the increase of moisture content of wood, and compared with other drying methods, the dielectric parameters of wood (including dielectric constant, loss angle plus microwave drying is a new cutting and loss factor) generally increase. When the study of microwave drying is not deep enough, the increase amplitude is more obvious; the dielectric properties of wood must be more anisotropic to give full play to the advantages of microwave drying, and the longitudinal dielectric parameters are about 2.5~3 times of the transverse ones, extensive and deep research in radial direction and chord dielectric parameters. Values vary slightly depending on tree species.
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