First, the unique advantages of wood
1, the wood is hard and durable, mainly because the wood is light and high strength, the ratio of the strength and density of wood is higher than that of the general metal.
2, wood processing performance is superior, mainly due to the wood material is light, soft, the use of simple tools can be processed into a variety of shapes of products. Wood processing consumes less energy and is an energy-saving material.
3, wood will not rust, not easy to be corroded.
4. Wood (dry wood) has weak conductivity to heat and electricity, small response to temperature changes, strong flammability, and no significant phenomenon of thermal expansion and contraction. Therefore, wood is suitable for use in heat insulation and electrical flammability requirements of high places. Furniture made of wood can give a person warm in winter and cool in summer comfort.
5, the wood overload is not brittle when broken, so that the wooden furniture, increase some security.
6. Although wood will burn at high temperature, the deformation of large wood structure is smaller and slower than that of metal structure, and it can still maintain a certain strength when it is gradually burned or carbonized, while the metal structure will creep and collapse rapidly due to high temperature.
7, wood color, beautiful pattern, at the same time after finishing rendering will become more pleasing to the eye, suitable for the production of furniture, instrument boxes, crafts and so on.
Two, the widespread defects of wood
There are advantages, naturally there will be shortcomings, although wood has many excellent attributes, but because of some of their own characteristics, there are also widespread defects that can not be ignored. Below, let us talk about the specific shortcomings.
1, wood is anisotropic heterogeneous material, that is to say, there are certain differences in the performance of each part, mainly shown as a variety of physical and mechanical properties of the differences. The uneven expansion aggravates the deformation of wood, and the difference of strength is easy to lead to wood cracking.
2. Wood is a hygroscopic material, that is to say, it is easy to get damp. Thus under natural conditions will occur wet rise, dry shrinkage, affect the stability of the size of the wooden character, that is easy to deformation.
3, wood is a natural polymer organic polymer, which makes some insects and fungi (mold, wood rot bacteria) can parasitic, that is, easy to attract insects and corrosion, so that wood health, wood products destruction, causing great human, material and financial losses.
4, wood drying is more difficult. Wood products must be made from dried wood. Wood drying to consume more energy, and a little attention will occur warping, cracking and other defects, bring unnecessary losses.
5. Wood is flammable. Where a lot of wood is used, attention must be paid to strengthening fire prevention measures.
Post time: Dec-12-2022