Why does the use of wood based panels improve the utilization rate of wood?

Wood-based panels are generally made of wood-based materials

1. Plywood: Rotate cut into veneer with a thickness of about 1mm with logs, and glue it into a board of specifications;

2. Particleboard: break the wooden material into pieces and glue it into a board of specifications;

3. Fiberboard: The wood material is broken into wood fiber, and the glue is assembled into a specification board.

The use of traditional wood, to cut the wood into boards, due to the growth characteristics of the wood, the thickness of the wood is uneven, bending, etc., in the cutting to cut the edge of the skin, straightened. Large-scale wood cutting should use a band saw, and the surface of the wood cut by the band saw needs to be planed into a smooth surface; And the loss of the sawing road is also relatively large, and in the process of making wood into wooden semi-finished products, it is necessary to avoid defects, truncation, planing and other processing, so the comprehensive utilization rate of general wood is generally about 40%.

Because the plywood is cut into thin slices, the loss in the cutting process is relatively small, and the influence of wood defects can be effectively avoided; Particleboard and MDF are broken wood materials, so that all parts of the wood except the bark can be fully utilized; Their loss is generally in the cutting utilization rate of the board, so the comprehensive utilization rate of wood is improved. The comprehensive utilization rate of splint is generally 65%, and the comprehensive utilization rate of particleboard and MDF is generally more than 80%.

1.Manufacturing process: The dimensional stability of wood-based panels is mainly affected by temperature, pressure and humidity in the manufacturing process; 2.

Product quality: whether the raw materials used are of high quality will affect the dimensional stability of the product; 3.Drying:

Wood-based panels are affected by the drying process, and due to the changes in the temperature and humidity of the external environment next to the state, the wood-based panels will also be deformed; 4.How to use: Excessive external force of wood-based panels will destroy its dimensional stability.

Humidity: Wood wood-based panels are made from wood grains or wood chips, so their water content has a great impact on dimensional stability. When the ambient humidity is high, the wood wood-based panel will absorb water and expand, resulting in a larger size; When the ambient humidity is low, the wood wood-based panel will lose moisture and shrink, resulting in a smaller size.

2.Temperature: Temperature also has an impact on the dimensional stability of wood-based panels.

When the temperature rises, the wood-based panels will expand, resulting in a larger size; And when the temperature drops, the wood wood-based panels shrink, resulting in a smaller size. 3.Plate thickness:

The thickness of the panels also affects the dimensional stability of wood-based panels. In general, thicker wood-based panels are more stable than thinner wood-based panels. 4.

Board density: Board density is also one of the factors affecting the dimensional stability of wood-based panels. The more dense the wood-based panel, the better its dimensional stability.

5.Manufacturing process: Different manufacturing processes can also affect the dimensional stability of wood-based panels.

For example, the hot pressing process can make the dimensions of wood-based panels more stable. In short, the above factors will have an impact on the dimensional stability of wood-based panels. When choosing wood-based panels, you need to take these factors into account in order to choose the product that best suits your needs.

Hello, dear, happy to serve you. The factors affecting the dimensional stability of wood-based panels include:1

Humidity of the board: Wood wood-based panels are usually made of wood particles, fibers and resins and other materials, if the moisture content of the wood is too high, it will cause the board to expand and deform, and vice versa, it will cause the board to shrink and deform. Teasing Lu 2

Density of the plate: The higher the density of the plate, the better its dimensional stability, and vice versa, the plate will be easily deformed. 3.

Panel processing technology: The quality and parameter control of wood wood-based panels in the processing process, such as hot pressing, drying, trimming and other processes, will also affect the dimensional stability of the board. 4.

The use environment of the plate: The use of the plate in different environments, such as the influence of temperature, humidity, ultraviolet radiation and other factors, will also have an impact on the dimensional stability of the plate. 5.

The quality of the board: The quality of the board includes factors such as particles, fiber size, distribution, type and content of resin, and the dimensional stability of high-quality wood-based panels will be better.

A new technology that turns logs into cubes increases the utilization rate of timber by 50%: the logs are preheated and steamed to 100 degrees in a large, special microwave oven to soften the logs gradually, and then a high pressure of 10 kilograms per square centimeter is applied to press the logs into squares. The wood treated in this way is tough and dense, not easy to crack and warp, and the strength can be greatly improved.

A new method of material picking: cutting the wood in the radial direction, i.e. from the center of the wood outwards, so that the cutting line is perpendicular to the annual ring. In this way, there is no material difference between the corresponding points on the two surfaces, the only difference in material is in the width.

Therefore, after the plank loses water and shrinks, the width changes slightly, but it will never be twisted and deformed, thus greatly improving the utilization rate of wood. People are still exploring how to improve the utilization rate of wood, and you can also learn some wood-related knowledge through the official account of the wood industry.

Panel furniture can also have a very beautiful design. From bookcases to living room cabinets, they can all be made of wood-based panels.

Wood-based panels, as the name suggests, are made from scraps generated during the processing of wood and mixed with other fibers. There are many types of man-made panels, and the commonly used ones are particleboard, MDF, blockboard (large core board), plywood, and fireproof board and other decorative wood-based panels. Because they have different characteristics, they are used in different fields of furniture manufacturing.

Particleboard that diversifies the specifications of furniture panels Particleboard is a kind of man-made board that is cut into pieces of certain specifications from leftovers and sawdust in the process of wood processing, dried and mixed with adhesives, hardeners and waterproofing agents, and pressed at a certain temperature.

Because the particle board structure is relatively uniform and the processing performance is good, it can be processed into large-format boards according to needs, which is a better raw material for making furniture of different specifications and styles. The finished particleboard does not need to be dried again, it can be used directly, and the sound absorption and sound insulation properties are also very good. However, it also has its inherent drawbacks, because the edges are rough and easily absorb moisture, so the process of furniture edging made of particleboard is particularly important.

In addition, due to the large volume of particleboard, the furniture made from it is also heavier than other boards. Medium-density fiberboard to improve the aesthetics of furniture Medium-density fiberboard is a kind of man-made board made of wood or plant fibers by mechanical separation and chemical treatment, mixed with adhesives and waterproofing agents, etc., and then molded by high temperature and high pressure, which is an ideal man-made board for making furniture.

The structure of MDF is more uniform than that of natural wood, which also avoids problems such as decay and insect moth, and at the same time, it has small expansion and contraction, which is easy to process. Due to the flat surface of MDF, it is easy to paste various finishes, which can make the finished furniture more beautiful. In terms of flexural strength and impact strength, it is superior to particleboard.

Various decorative wood-based panels for beautifying the home The man-made panels used for decoration are the products of ordinary artificial panels that have been secondary processed by veneer. According to the finishing material, there are many types such as natural solid wood veneer wood-based panels, plastic veneer wood-based panels, and paper veneer wood-based panels.

Fireproof board, also known as "plastic veneer wood-based panel", has excellent wear-resistant, flame-retardant, easy-to-clean and water-resistant properties. This kind of man-made board is a good material for making dining table tops, kitchen furniture, and bathroom furniture.

Paper-based veneer wood-based panel This kind of board is a special paper-based veneer material with wood grain or other patterns pasted on the surface. Its various surface properties are slightly worse than those of plastic veneer wood-based panels, such as Polaroid boards, ornate boards, etc.

Advantages: wood-based panels are cheap, save forest wood, man-made panels are large and flat, easy to do various shapes, less deformation, and greater strength of plywood and directional fiberboard.

Disadvantages: Most man-made boards are polluted, and the release period is very long, most man-made boards are afraid of water, moisture will destroy the glue in them, and the service life is not as good as natural wood (natural wood can be renovated).

Advantages of man-made: many shapes, **cheap.

Cons: Some are not environmentally friendly.