2022.04.07
Expandable polystyrene is an ideal packaging material. Through the molding process, it can be processed into packaging products of various shapes and thicknesses as required. In the case of high load, the material achieves the function of buffering and shock absorption through deformation, energy absorption, decomposition of energy, etc., and has the functions of heat preservation and heat insulation at the same time. Foam boxes are generally white, and colors can be produced on request. Foam boxes are so widely used because of their natural advantages:
1. Lightweight. Part of the space of EPS packaging products is replaced by gas, and each cubic decimeter volume contains 3-6 million independent airtight bubbles. Therefore, it is several times to dozens of times larger than plastic.
2. It has the ability to absorb shock loads. When EPS packaging products are subjected to shock load, the gas in the foam is stagnant and compressed, so that the external energy is consumed and dissipated, and the foam body gradually terminates the shock load with a small negative acceleration, so it has a good shockproof effect.
3. Good thermal insulation performance. Thermal conductivity is the weighted average of pure EPS thermal conductivity (108cal/m.h.℃) and air thermal conductivity (about 90cal/m.h.℃).
4. Good sound insulation performance. The sound insulation of EPS products is mainly through two ways, one is to absorb sound wave energy and reduce reflection and transmission; the other is to eliminate resonance and reduce noise.
5. Anti-aging and corrosion resistance. Except for prolonged exposure to high-energy radiation, the product has no obvious aging phenomenon. Resistant to many chemicals, such as dilute acid, dilute alkali, methanol, lime, asphalt, etc.
6. Anti-static performance. Because EPS products have low electrical conductivity, it is easy to generate self-charging phenomenon during friction, which will not affect general user products. For high-precision electronic products, especially large-scale integrated block structural components of modern electrical appliances, anti-static foam box equipment should be used.
The use and advantages of foam box equipment are now very popular packaging methods. These packaging products can be seen in many fields. As a common packaging, the price of foam packaging is also very cheap, compared with other means of transportation. Said to be a cheap package. The foam packaging on the outer layer of the item is basically to reduce the damage when transporting the goods, so that the item can be stabilized without being damaged when it receives bumps. This is the purpose of foam packaging. There are also quality points in the foam box, but they are not big. Basically, the ones with better quality are more expensive.
The use and advantage of foam box equipment are excellent packaging materials, such as televisions, refrigerators, washing machines, air conditioners, electronic instruments, precision instruments, glassware, ceramic products, arts and crafts and other products, all of which are inseparable from EPS foam parts as a cushioning package. EPS foam is a lightweight material formed by heating and foaming with polystyrene resin as the base material, adding auxiliary materials such as foaming agents. It has the advantages of light weight, low thermal conductivity, low water absorption, water resistance, aging resistance, low temperature resistance, easy processing, low price and high quality. An indispensable container for thermal insulation and preservation materials. The use and advantages of foam box equipment are relatively easy to recycle and reuse, and it is a good green packaging material. Foam box production line configuration:
Continuous pre-conditioner – fluidized drying bed – foam box forming machine – auxiliary equipment (steam boiler, air pump, cooling water tower, mold, pipeline)
Basic process flow:
Raw material EPS beads factory – pre-foaming – automatic machine product forming – product drying – product packaging – factory
At present, China has become the world’s largest consumer of foam machinery and styrene board equipment, and its consumption accounts for about 28% of the global market. Under the temptation of such a huge market, major multinational companies are eager to move. Coupled with the relatively low prices of factors of production in China, it has become the driving force for major companies to seize the Chinese market.
The development of foam box equipment industry depends on the development of foam raw material industry and foam product processing industry. The general development trend of China’s foam plastic machinery is to develop in the direction of combined structure, specialization, serialization, standardization, compounding, miniaturization, large-scale, individualization and intelligence, and at the same time to meet the requirements of energy saving, material saving and high efficiency. requirements to meet the cost saving needs of foam raw materials and foam products processing enterprises.
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