The production technology of flame-retardant medium-density fiberboard is high, and it is a modernized industry with relatively rich capital and technology. The production line has a high degree of automation. This product is also one of the better products in wood-based panel products, and the product qualification rate is high, but There are still some problems, and the quality problems that are generally reflected are: 1. The surface of the board is rough and the uniformity is poor, which affects the re-processing of the board. 2, the surface of the board is seriously polluted, such as rubber spots, oil stains, etc., affecting the re-processing of the board. 3. The thickness deviation of the plate is large. 4. The bark content of the board is high. 5, the water resistance of the board can not meet the needs of some application areas. 6. The middle layer of the board is soft, the screw force is held, the inner bonding strength is low, and the edge of the board is rough. 7, formaldehyde emission exceeded the standard, affecting personal health. These problems are not only the problems in the production of traditional flame-retardant medium-density fiberboard in China, but also the gap between China and foreign advanced levels in the past decade. In particular, when the formaldehyde emission of the flame-retardant medium-density fiberboard is unacceptable, the furniture manufactured by the fabric or the interior decoration material becomes an indoor pollution source, which affects personal health. In addition, the uniformity of the flame-retardant medium-density fiberboard board in China, the smoothness, the structure of the sheet, the thickness deviation, the water resistance and other quality are different from those of foreign products. The main reasons are: the accuracy of the equipment is not enough, the production line automation degree, technical level, management level and quality control are still in gap with foreign products, which requires China's medium-density industry to continuously improve the technical level, management level, standard level, Super world advanced level. In recent years, with the improvement of China's comprehensive national strength, the development of modern industrialization, the introduction of some advanced continuous press production lines, the production of flame-retardant medium-density fiberboard has approached or surpassed the level of international developed countries, the flame retardant of the products produced. MDF is not only superior to traditional products in terms of physical properties, but also effectively solves the shortcomings of traditional products. The application of phenolic resin glue effectively solves the shortcomings of the traditional flame retardant medium density fiberboard with poor water resistance. The application of the new flame retardant not only makes the flame retardant performance reach the international advanced level in the past, but also effectively solves the problem of formaldehyde pollution. Concerned about surprises Label: Common problems with flame retardant MDF? Previous: The shortage of flexible waterproof materials in the application Next: The purchase of children's furniture should be considered in many aspects Mild steel, sometimes referred to as carbon steel or ordinary carbon steel, is defined as having a carbon content of no more than 2% and no other perceptible alloy elements. Carbon Steel Bolts,High Carbon Steel Bolts,Bolt Carbon Steel,Carbon Steel Fasteners Taizhou Hongchuang Hardware Co., Ltd. , https://www.jstaizhouhongchuang.com
This steel is produced on a large scale and is the largest part of the steel production industry. You will be able to find it in various applications, fasteners and fasteners.
Generally, this kind of steel has high strength, high hardness and magnetism, and is usually used in motors and electrical appliances - however, their corrosion resistance is poor, and should not be used in corrosive environment without protective coating or coating.
There are some differences between low-carbon steel and steel, because steel has lower toughness and greater brittleness, and low-carbon steel can be further strengthened by adding carbon.
If you need more information or want to order carbon steel products, such as hexagon Bolts, carriage bolts, flange bolts, U-bolts, union bolts, expansion bolts, threaded rods, please contact us.