Little fairy takes you to the foam machine

A certain amount of foaming agent and water vapor remain in the beads pre-delivered by the foaming machinery and equipment. After leaving the machine, they condense into liquid. The liquid foaming agent dissolves into polystyrene, causing the pressure in the bubble to drop rapidly, and the bubble appears negative Pressure (partial vacuum). The beads are very soft and easily deformed. Therefore, when supplying air, try not to make the wind pressure too large, and the inner wall of the air duct should be lubricated as much as possible, and the bending radius should be as large as possible (to reduce the knock resistance). The pipeline should be a good electrical conductor, so all lines need to be grounded to prevent static electricity from igniting, and the transmission speed should not exceed 8m/s to prevent damage to the beads.　　 The beads that just came out of the foam machine pre-expander are wet. After being discharged from the pre-expander, the foaming agent in the honeycomb unit condenses, forming a negative pressure in the unit. Therefore, it is necessary to place the beads for a period of time after pre-hairing. On the one hand, it is boring, and on the other hand, it is the negative pressure in the air to balance the internal pressure and external pressure in the cell, avoid cell collapse, and make the beads elastic.　　 The EPS beads that have just come out of the pre-expander experience a certain period of dryness and stable cell pressure, which is called maturation. The maturation improves the further expansion of the pre-expanded beads in the molding process, the sintering between beads and the elasticity of the beads, which is conducive to improving the quality of the EPS products. During the maturation process, the beads pass through the air, and the foaming agent and water vapor in the pores of the cells are condensed into liquid, so that a negative pressure is formed in the cells. At this moment, air passes through the cell membrane to the inside of the cell, so that the pressure in the cell is balanced with the external pressure, so that the pre-expanded beads will have elasticity.　　 Maturation can be divided into two methods: maturation and pressure maturation.　　 1. In a cool, dry, and ventilated condition, letting it inflate is called maturation.　　2. Add gas (air, nitrogen) to the naturally matured pre-expanded beads into a sealed container to fill it with a certain pressure, which is called pressure curing
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Many of the automation equipment manufacturer listed here can be purchased for less money, but in general we recommend paying a slightly higher price for significantly improved performance. These are our top choices and their recommended configurations.