Plywood - the king of multifunctional man-made boards
Plywood, as a man-made board widely used in many fields such as construction, furniture, and decoration, occupies an important position in the modern material world with its unique properties and diverse uses.
Structure and production process of plywood: Plywood is made of multiple layers of thin wood sheets, that is, veneers, bonded together by adhesives. Usually, the fiber directions of these veneers are perpendicular to each other, and the wood grains of adjacent layers of veneers are staggered at 90°. This structure is called cross grain. In the production process, the logs must first be cut into thin slices, and then the veneers are dried to control their moisture content. Next, the adhesive is evenly applied to the veneers, and then they are stacked in a certain order and direction. Finally, the adhesive is cured by hot pressing or cold pressing, and the veneers are tightly combined to form plywood. Common plywoods include three-ply, five-ply, seven-ply, etc. The number of layers is generally an odd number, which can make the plywood more symmetrical in structure and reduce the possibility of warping and deformation.
Performance advantages of plywood:
1. Good stability: Due to its unique cross-grain structure, plywood has a relatively uniform strength in different directions and can effectively resist deformation and cracking caused by humidity and temperature changes. Compared with solid wood boards, plywood can better maintain the stability of its shape and size in a humid or dry environment, and is not prone to warping, twisting and other problems, so it is suitable for various climatic conditions and different use environments.
2. High strength: The gluing of multiple layers of veneer gives plywood higher strength and rigidity, and can withstand greater pressure and weight. It can be used to make structural components that bear large loads, such as roof panels, floors, walls, etc. in buildings, and can also be used to make furniture frames, countertops, etc., providing reliable support and durability.
Good processing performance: Plywood is easy to cut, drill, nail, bend and other processing operations, and can be made into components of various shapes and sizes according to different design requirements. At the same time, its surface is flat and smooth, which is convenient for surface treatment such as veneer, coating, printing, etc., which can meet different decorative requirements and achieve a variety of appearance effects.
3. Strong economy: The production of plywood can make full use of wood resources, process small-diameter wood, branch wood, etc. into single board, and improve the utilization rate of wood. Moreover, its production process is relatively mature and its production efficiency is high, so the cost is relatively low, the price is relatively close to the people, and it has a high cost performance ratio, and has been widely used in the market.
Application fields of plywood:
4. Construction industry: In building structures, plywood is often used to make roof panels, floor panels, wall panels, etc. As a template for concrete pouring, it has the advantages of being light, easy to install, and reusable, which can improve construction efficiency and reduce construction costs. In addition, plywood can also be used for interior decoration of buildings, such as making ceilings, partition walls, door and window frames, etc., to provide beautiful and durable decorative effects.
5. Furniture manufacturing: It is one of the indispensable materials in furniture making. It can be used to make cabinets, panels, drawers and other parts of various furniture such as wardrobes, cabinets, bookshelves, tables and chairs. The stability and strength of plywood can ensure the quality and service life of furniture. Its good processing performance and decorativeness can meet the design requirements of furniture of different styles, making furniture both beautiful and practical.
6. Packaging industry: Since plywood has certain strength and toughness and can withstand certain impact and pressure, it is widely used in the packaging field, such as making packaging boxes, pallets, containers, etc., for transporting and storing various products, and protecting products.
7. Other fields: Plywood also has certain applications in the fields of automotive interiors, shipbuilding, aerospace, etc. For example, in automotive interiors, plywood can be used to make components such as dashboards and door interior panels; in shipbuilding, it can be used to make shipboards, bulkheads, etc.; in the aerospace field, plywood can be used to make aircraft interior components, models, etc., and is favored for its light weight and high strength.
Suqian Xinchenyou International Trading Co., Ltd.
