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Plywood is made of wood segments
Keywords: plywood
| Plywood is made of wood segments cut into veneer or wood square planer cut into thin wood, and then with adhesive glue and become three layers or layers of board material, usually with odd layers of veneer, and make adjacent layer veneer fiber direction vertical glue and become. Plywood is one of the commonly used materials of furniture, one of the three wood-based panels, and can also be used for aircraft, ships, trains, automobiles, construction and packing boxes. A group of veneer is usually formed by gluing each other vertically according to the direction of the grain of the adjacent layer. Usually, the surface plate and the inner plate are proportionally arranged on both sides of the central layer or the core of the plate. With glue-coated veneer according to the direction of the grain crisscross into the slab, in the heating or not heated under the condition of pressing. The number of layers is usually odd, and occasionally even. The difference of physical and mechanical properties in vertical and horizontal directions is small. Commonly used plywood types are plywood, plywood and so on. Plywood can improve the utilization rate of wood, is a main way to save wood. The main species are: beech, camphor, willow press, poplar, eucalyptus and so on
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