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The initial CNC cutting machine was based on organic materials such as polyphenylene plates. However, organic materials had the disadvantage of poor fire resistance. Now the polyphenyl board already has the fireproof effect of Class B2 and B1, and more fireproof and waterproof CNC cutting machines have been launched one after another. It can be seen that the big trend of CNC cutting machine is not only towards the direction of more thermal insulation, but also Take into account other factors.
1. More attention to moisture-proof and waterproof performance is an important factor in the development direction of the adiabatic CNC cutting machine. The water absorption rate is an important factor that should be taken into account when selecting thermal insulation materials. The thermal conductivity of water at room temperature is 23.1 times that of air. Insulation material not only greatly reduces its thermal insulation after absorbing water, but also accelerates the corrosion of metal, which is very harmful. The gap structure of CNC cutting machine is divided into several types: connected type, closed type, and semi-closed type. Except for a small number of organic foams, the majority of voids are closed type. Other numerical control cutting machines absorb water regardless of the void structure. The capillary that communicates with the voids absorbs water, so the overall water absorption is high.
At present, most CNC cutting machine materials do not drown and have a high water absorption rate. As a result, the waterproof requirements of the outer sheath are very strict, which increases the cost of the outer sheath. The current silicone modifier in the modifier is a more efficient and effective water-repellent agent for CNC cutting machines. Its hydrophobic mechanism is the use of organic silicon compounds, and has a strong chemical affinity with inorganic silicate materials. , To effectively change the surface characteristics of silicate materials, so that it achieves hydrophobic effect. It has good stability, low cost, simple construction process and so on.
2. The use of new nanotechnology CNC cutting machine is also a major direction of research At present, there have been several new CNC cutting machines (such as nanohole insulation materials, asbestos substitutes for composite insulation materials, etc.). Nanoporous insulation materials: With the continuous development of nanotechnology, nanomaterials are increasingly favored by people. Nanoporous silicon CNC cutting machine is a new application of nanotechnology in the field of CNC cutting machine. Most of the pore size in the component material should be in the nanometer scale. According to molecular motion and collision theory, the heat transfer of gas is mainly through higher-speed molecules on the high-temperature side, and low-speed molecules on the low-temperature side collide with each other to transfer energy.
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