What are the specific characteristics of plywood density and thickness
When decorating, we often need to use plywood. In fact, it is also commonly referred to as plywood, single-ply version, there are three plywood and five plywood and other common household materials. This kind of wood-based panels can effectively improve the efficiency of wood use, and the price is relatively low, so it is more popular. Next, we will understand the density and thickness of plywood, and the specific characteristics of plywood.
Density and thickness of plywood in Shandong Province
1. This kind of plywood production method is to use multi-layer thin veneer, and then fold them together for pasting and hot pressing, thus becoming a decoration material. Generally, it can be divided into three kinds of splints, namely, three-ply, five-ply, nine-ply, nine-ply and twelve-ply, namely twelve-ply. In general, the higher the density, the better the quality, and the density of plywood will be the same material of decoration wood, the greater the pressure applied in the process of pressing. Then the density of plywood made from it will be higher. This kind of wood will deform at high temperature, so it must be fast in hot pressing.
2. If it can be determined that its density is high, then it can be said that its quality is very good, usually greater than the same wood species, then the greater the unit pressure when bonding, the greater the density of plywood. Because wood is prone to plastic deformation at high temperature, the compression rate of hot-pressing bonding is higher than that of cold-pressing bonding, because plywood is made of crisscross veneers. The thermal conductivity of plywood is lower than that of the same kind of wood. The outermost veneer of plywood is called surface board, the front veneer is called panel, the reverse veneer is called back board, and the inner veneer is called core board or middle board.
The decoration materials are known to be laminated with multiple thin boards, and its thickness depends on how many pieces are used. For different combinations of laminates, the thickness of plywood is also different. Generally there are 3, 5, 9, 12, 15, 18 and other specifications, of course, according to special circumstances will have other thickness. Because the plywood is strong and has good stability, so many users will choose this kind of wood, but plywood uses more glue, so we need to do a good job in cleaning the edges and crevices.
What are the specific characteristics of plywood
Although the price of plywood in the market is different, its specific characteristics are consistent, and widely used in various occasions, plywood has a balanced high strength, and is not easy to shrink, expand and deform. Plywood is not easy to crack, so there is no need to worry about nails or screw cracks. Because plywood is man-made board, its size range is very wide, according to different needs, can make different sizes. Plywood surface modeling is easy, in modern building surface design, using plywood to complete the perfect, in addition, plywood weight is very light, production, removal, installation is very simple.