It is invented in 1979 by Samuel Bentham with durable features, aesthetics, and competitive prices. Nowadays, plywood has become a top-rated product, applied in packaging, construction, furniture, and even shipbuilding industries.
So how to produce plywood?
1. Select log
Start the production process by selecting a wood that meets the size and quality requirements. The primary purpose here is to make sure that veneer can be made to ensure size and aesthetics. Some types of wood used to produce plywood are maple, mahogany, and some varieties of pine, cedar, and spruce.
After being carefully selected, the log will be carefully preserved, in preparation for the peeling process.
2. Cut and peel
In the next step, each log will be measured and cut by an industrial saw, then peeled off by a specialized machine. Then the it will be peeled into a layer of wood by a rotary lathe machine. The veneers will take the form of continuous sheets, which will then cut into sheets of appropriate size. The standard size of veneer layers is 1270 × 50mm
The quality of the plywood depends significantly on the quality of the veneer. The substandard veneers will be removed immediately to ensure product quality.
3. Drying the veneer
After being peeled and cut, the veneer is still very wet or high moisture, the next process will be to remove dampness by drying in a specific time. The moisture content of the veneer is also one of the crucial factors that determine the quality of plywood. The standard moisture content of the finished product will be less than 14%.
4. Bonding uses adhesives
The veneer will be covered with a layer of glue and lined together. Two sheets of plywood’s face will be folded out. The combination of veneers and adhesives will determine the thickness and durability of the plywood. Different types of adhesive will use following the purpose of the plywood. With typical purpose plywood, the glue makes by urea-formaldehyde (urea-formaldehyde). For plywood used with waterproof requirements, melamine glue or phenol-based glue will be used. Particularly for plywood used in the furniture, the adhesive used must also meet the E0 standard (Emission 0)
5. Hot pressing
The plywood will put through the hydraulic press machine. Because of the pressure and temperature, the adhesive will harden, bonding with the veneer. As a result, the plywood can be flat, durable, and desired thickness. This process usually takes 30 minutes. The time may vary according to the thickness and type of wood.
After a preliminary quality check, the plywood will be passed through the cutter to ensure smooth edges. The board size will customize according to customer requirements.
7. Check quality.
Workers will check the quality of each product, including durability, appearance, alignment, if there are any errors or substandard quality, the product will be rejected or repaired.
So now you know how to produce a plywood board. Lots of stages and efforts to be able to create quality products. By strict process, we ensure the quality of each product to ensure every customer request.
If you have any questions about plywood products, email us or leave a comment below.
Have a nice day!!!