点击下载 为什么木材加工需要湿度控制，而不仅仅是温度控制 en-US Why woodworking needs humidity control, not just temperature control.
If you've ever lived in a house with wooden doors and frames, you probably know how much temperature affects wood. When it gets cold, wood expands, and when it gets warm, wood contracts. But did you know that it has nothing to do with temperature and everything to do with humidity?
Wood and Humidity Wood is a natural substance, a common building material, and ideal for making furniture, decorative items, and works of art. Almost every household in China has wood products in their home in some form or another. Wood is a hygroscopic material, which means that its internal moisture content fluctuates with the humidity of the surrounding air. In the winter, the moisture content in the air is high, so the wood expands. In the summer, it has low humidity, so it will shrink down. This is how a wooden door or door frame can expand or contract throughout the year. While this is something inconsequential for every home, it can be financially costly when it comes to manufacturing or working with anything related to wood.
Drying Wood The process of manufacturing wood begins when the tree is cut down, and moisture and humidity control is already a key factor. In a freshly felled tree, the wood is full of moisture. Depending on the species, free water (free water) makes up about 72% of the total water content of the tree, the remaining 28% of the water is in the wood fibers, soaking through the cell walls. This is called bound water it is what causes the fibers to swell - just like a sponge swells when you get it wet. When wood dries, the free water evaporates first, then the bound water. When wood loses its free water, it usually doesn't change shape or size. Once the bound water begins to evaporate, it shrinks. Typically wood is dried to a moisture content of 8-12%. The amount of bound water in wood changes constantly with the moisture in the surrounding atmosphere, increasing or decreasing by 1% for every 5% change in relative humidity.
Why is it important to control humidity in wood manufacturing and processing? Controlling humidity in wood manufacturing is about creating a quality product. Dehumidification and drying equipment creates a controlled environment that can have a significant impact on the final product. So, dehumidification and drying equipment can help create higher quality results with minimal investment.
In dehumidification and drying of wood, PARKOO dehumidifiers and dryers offer a range of solutions to keep the wood can be made in the best possible environment. If you would like more information, you can contact our team.
