The effect of wood carbonization The nutrients of wood […]
The effect of wood carbonization The nutrients of wood treated at high temperature are destroyed, which makes it have better anti-corrosion and insect-proof functions.
2. Because its water absorption function is reorganized, carbonized wood is not easy to absorb water and is resistant to moisture. In an environment with large differences in external humidity, it is not easy to deform, not easy to crack, and is more stable than ordinary wood. of) higher.
3. Due to the carbonization treatment, a protective film is formed on the surface. Compared with ordinary wood, carbonized wood has no disadvantages of surface fluff.
4. In appearance, the carbonization process deepens the color of the wood, and the higher the temperature during the carbonization process, the darker the color of the wood. After the carbonized wood is planed, the color is consistent inside and outside, and the texture becomes more Clear and comfortable in hand.
Commonly used wood drying methods include: conventional drying by steam heating, conventional drying by furnace gas heating, hot air drying, dehumidification drying, vacuum drying, and conventional drying by hot water and high-temperature water circulation (continue) heating, which has been popular in recent years. The appropriate drying method must be selected according to the drying characteristics and requirements of solid wood floors, as well as the scale and conditions of the enterprise.
Steam heating conventional drying
This method is a traditional drying method of drying wood by using saturated steam with gauge pressure P ≤ 0.4MPa and heating the drying kiln by heating the circulating (continue) air drying medium (the substance that plays a decisive role).
hot air drying
The hot blast stove used for heating is located outside the kiln, and is connected to the drying kiln by the inlet and return gas pipes. The air drying medium (the substance that plays a decisive role) is introduced into the hot blast furnace outside the kiln for heating through the return air pipe, and then returned to the kiln by the blower (Draught Fan), which is a conventional drying with double air circulation.
Dehumidifying and drying
It is a method of drying wood by gradually dehumidifying the air drying medium (the decisive substance) in the kiln with a dehumidifier (or called a heat pump) and heating it appropriately. The dehumidifier can only work in the set temperature range to have the dehumidification effect. The working temperature of ordinary dehumidifiers does not exceed 55℃, and the working temperature of medium temperature dehumidifiers does not exceed 65℃.