But when purchasing, pay attention to the fact that expansion too fast or too slow is not good. It is likely to be high-density board or low-density board (these two types of boards are rarely used no

But when purchasing, pay attention to the fact that expansion too fast or too slow is not good. It is likely to be high-density board or low-density board (these two types of boards are rarely used now due to obvious defects). The processing precision and process requirements are high, and the cost is high; because of its high density, it must be cut with a precision saw and is not suitable for processing at the decoration site. In foreign countries, density board is a good material for making furniture. However, because our standards for density board are several times lower than international standards, the quality of density board in our country needs to be improved. Commonly used medium density boards in our country have several specifications: 3cm, 5cm, 9cm, 12cm, 15cm, 18cm and 25cm. ⑤Particle board (particle board): It is a board made of waste materials from wood harvesting and processing or wood shavings from other plants, and added with glue or other auxiliary materials. According to the pressing method, it can be divided into two categories: extruded particleboard and flat pressed particleboard. Advantages: Good sound absorption and sound insulation properties. Can be used as sound-absorbing building components such as soundproof siding doors. The expansion rate of the board is low and the board thickness error is small. The raw materials are sufficient, the cost is low, the quality and strength are good, and it is easy to cut and process. It is one of the main materials of cabinet boxes. The cost is cheaper than medium density board, and the formaldehyde content is much lower than that of large core board. It is one of the most environmentally friendly artificial boards. Disadvantages: Slightly poor nail holding ability. The quality difference between different products is large and difficult to distinguish; the bending resistance and tensile resistance are poor; the density is low and it is easy to loosen. Therefore, it is generally not suitable for making larger furniture or furniture with mechanical requirements. In terms of shape, it is not as good as MDF. Particleboards come in many specifications, with thicknesses ranging from 1.6 to 75 mm, with 19 mm as the standard thickness, and three commonly used thicknesses: 13, 16, and 19 mm. Of course, many specifications can now be customized. In the overall wardrobe industry, many specifications are consistent with medium density boards.