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EPS foaming machine classification, principle and process

2021-07-09

1.Classification of EPS foaming machine

 There are many brands and models of foaming machines, but according to the foaming principle, there are only three types that are widely used at present: high-speed impeller type, high-pressure air type, and medium and low-pressure blast type. The difference of the same type is only the difference between its accessory equipment and automatic control. The structure of the foamed part is basically the same.

2. EPS foaming machine principle

   The basic principle of  foaming is to introduce air into the foaming agent solution, no matter what kind of foaming machine. Different models have different effects and different ways of introducing gas.

 EPS foaming machine classification, principle and process

 There are two necessary factors for the formation of foam, one is the foaming agent solution, the other is air, these two factors are inseparable from the two. Without foaming agent solution, no liquid film will be formed around the gas, and there will be no bubbles. Without gas, the foaming agent solution alone cannot form foam.

 In the bubble formation system, the gas is the dispersed phase, the gas is dispersed in the liquid to form bubbles, the blowing agent solution is the dispersion medium, and the bubbles are formed by numerous bubbles. In addition to the properties of the blowing agent, the introduction of gas in the blowing agent solution is also an important factor. The foaming machine adopts a certain method to introduce gas into the liquid, that is, the introduction of gas into the liquid must be completed by the foaming machine.    

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