Carbonized wood is a modified product of high temperature heat treatment of wood. Compared with ordinary wood, it has a series of characteristics:

The dimensional stabilization of wood is a treatment method to change its hygroscopic and hygroscopic properties without destroying the complete structure of the wood cell wall.

What are the hazards of wood blue stain? do you know?The following are the hazards of wood blue stain.

Wood blue stain usually refers to the discoloration of all sapwood in wood, and blue stain is a general term for the discoloration of wood sapwood. In addition to changing to blue, it also includes other color changes, such as black, pink, green, etc. The fungi that cause blue-staining of wood include Cymbidium spp., Ceratosporium spp. and Chromium spp., etc. The most serious damage to rubber wood is Cocoa spp.

Wet wood suitable materials for industrial applications are usually used for low industrial, density, mechanical strength, mechanical properties, perishability, etc., not directly used, practicality and practicality after treatment and drying. It mainly has the following aspects.

During the drying process of wood, in the process of water evaporation in wood, due to the different combinations of various water in wood and wood, the properties of water in wood at each stage are different, and the properties of wood corresponding to this are also different. Therefore, in the wood drying process, the evaporation process of water in the wood should be reasonably controlled, so as to improve the drying speed as much as possible on the premise of ensuring the drying quality of the wood.

Whether the sawn timber accumulation is reasonable or not directly affects the dry quality of the wood, and its importance cannot be ignored because the sawn timber accumulation operation is simple and heavy. There are some requirements for stacking operations as follows:

Drying benchmarks for new tree species need to be established. Before establishing new drying benchmarks, it is necessary to understand the structure of wood and its physical and mechanical properties, especially the relationship between wood density and drying shrinkage coefficient, and use the drying benchmarks of tree species with similar properties as a reference. . Or saw small samples and dry them in a drying box to observe their drying conditions. You can also put all kinds of wood to be dried together for drying experiments to observe the drying conditions of various test materials, and then according to various The reaction of sawn timber to drying is carried out by tree species. The steps are as follows:

The use of "carbonized wood" is divided into two categories: indoor use and outdoor use. Indoor use is mainly used for: floors, wall panels, interior decoration, furniture, doors and windows, blinds, window sills, sauna room floors and wooden structures, etc. Especially in the new residential buildings in northern my country, there are more and more ground heating floors. Too many cannot use solid wood flooring because of the unfavorable dimensional stability, and only laminate flooring or multi-layer solid wood composite flooring can be used. In the environment of floor heating, the release of formaldehyde from the adhesive layer of reinforced and composite floors causes indoor air pollution, which is a very difficult problem. The carbonized wood has good size performance and no air pollution, so it can be used for floor heating.

The basic principle and drying essence of dehumidification drying and conventional drying are the same. Both rely on the convection heat exchange between the hot air in the wood drying room and the wood to be dried, and the air heats the wood and absorbs the moisture evaporated from the wood. The main difference between the two is the method of dehumidifying the air.