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Advantages of SMC/BMC composites and molding process

Advantages of SMC/BMC composites and molding process

Send:2018/11/28 6:37:57

  Energy-saving and environmental protection air conditioner is a natural phenomenon of "direct evaporative refrigeration". After the fresh air outside is filtered and cooled by the environmental protection air conditioner, a large number of cool air sources are continuously sent into the room, and the indoor turbid air with odor, dust and high temperature is discharged from the outside. Through such a continuous cycle, the indoor temperature drops. Low. This kind of air conditioning is characterized by energy saving, power consumption is reduced by nearly 90% compared with the traditional air conditioning; outdoor air is filtered and cooled to deliver fresh, clean, low-temperature air; less investment, low initial installation costs, low maintenance costs, economic and durable. Because of its obvious power saving, good cooling effect and low investment, it is welcomed by many small and medium-sized processing enterprises.

  In order to improve the strength and aging resistance of the product envelope, all the envelopes of the environmental protection air conditioner are made of FRP. The main improvement of the envelope of the environmental protection air conditioner is that the envelope is changed from stainless steel spraying to FRP, and the internal structure and function of the envelope are unchanged. The price has been lowered, so that the energy-saving and environmental protection air conditioner market to a more competitive height. An air conditioner with more than 40 kilograms of FRP, FRP environmental protection air conditioner shell mostly using hand paste molding process.

  Although China is the first country in the world in terms of land area, it is still a country with relatively scarce resources if per capita resources are taken into account.

  Therefore, energy conservation and environmental protection is of great significance in the sustainable development of our country. Energy-saving and environmental protection air conditioning is welcomed by many small and medium-sized processing enterprises because of its remarkable power saving, good cooling effect and low investment. In recent years, the environmental protection air conditioner develops rapidly, and the market prospect is good. It is difficult to keep up with the development speed of the environmental protection air conditioner by hand pasting the FRP air conditioner shell. Some energy-saving and environmental protection air conditioner manufacturers adopt SMC molding process to produce the FRP air conditioner shell, that is, using new thermosetting SMC composite material. SMC composite is the abbreviation of Sheetmoldingcompound, that is, sheet molding compound. The main raw materials are GF (special yarn), UP (unsaturated resin), low shrinkage additive, MD (filler) and various additives. It first appeared in Europe in the early 1960s and developed in 1965 in the United States and Japan. In the late 80s, China imported advanced SMC production lines and production processes abroad.

  SMC material has the advantages of superior corrosion resistance, light weight, easy and flexible engineering design, and its mechanical properties can be compared with some metal materials, with good design, high strength, waterproof, corrosion resistance, not easy to pollute and so on. Therefore, the shell made of SMC composite material is characterized by light weight, high specific strength and impact resistance. Its density is about 1/4 of steel density and 2/3 of aluminum density, but its strength is very high. Its tensile strength is close to common carbon steel. Its bending strength and modulus of elasticity are 8. 10 times. Anti-acid and alkali, anti-corrosion, anti-aging, SMC materials are excellent corrosion-resistant materials, acid, alkali, salt, most of the organic matter, seawater and humidity have a better resistance to the role of microorganisms also have resistance to the performance of long service life.


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