Wood drying and anticorrosive treatment method

Abstract

The invention belongs to the technical field of wood processing technology, and particularly discloses a wood drying and anticorrosive treatment method. The wood drying and anticorrosive treatment method comprises the following steps: S1, wood loading; S2, prefreezing of a wood; S3, vacuum freeze drying; S4, heating; S5, soaking in a preservative; S6, extraction of the redundant preservative; S7, prefreezing of the wood; S8, vacuum freeze drying; and S9, heating. The wood drying and anticorrosive treatment method has the advantages that the wood is treated by the vacuum freeze drying method, so that corrugation of the wood due to the surface tension caused by liquid water is avoided, and the original tissue structure of wood fibers is retained. In the later anticorrosive treatment process, as the microstructure of the freeze-dried wood is not changed, and the effect of absorbing liquid is good, preservative liquid can be also quickly absorbed without injecting the preservative by pressure, and the leaching resistance is high; furthermore, energy required for injecting the preservative by pressure is saved; and meanwhile, worms and worm eggs in the wood can be killed in the vacuum freeze drying process.

Description

technical field [0001] The invention relates to the technical field of wood processing technology, in particular to a wood drying anticorrosion treatment method. Background technique [0002] Wood needs to go through a pretreatment process before use, and drying treatment is a very important part of it. In the process of drying wood, it is the goal that people have been pursuing for a long time to ensure the quality of wood as much as possible. [0003] At present, traditional high-temperature drying or low-temperature vacuum drying is used at home and abroad. Usually, the wood is heated to a certain temperature, usually above 80°C, and kept for a certain period of time. Vacuum drying also requires vacuuming the drying furnace to reduce the vapor pressure of water to achieve drying. purpose of wood. However, during the drying process, the tension of the water will cause the wood to shrink, deform, etc., reducing the quality and value of the wood. At the same time, high-te...

AI Technical Summary

Problems solved by technology

The traditional method is to pressurize the preservative into the wood in the tank. This process requires a lot of energy, and too high pressure injected into the wood may destroy the structure of the wood itself.

And in the process of preservative treatment, the excess preservative injected into the wood will be discharged directly, which will have a great impact on the environment

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