2023.02.14
Our country began to use the foam box forming machine as early as the 1950s, but it is not a special foam box forming machine, but a mortar mixer. The foaming agent is directly added into the mortar mixer or concrete mixer, so that the foaming agent is stirred together with the mortar or concrete to form foam. Around the 1970s, a special foaming agent, the high-speed impeller foaming machine, began to appear. It’s been upgraded and upgraded ever since. At present, it has developed into the third-generation high-pressure aeration as the main body, which basically meets the needs of foam concrete.
No matter what kind of foam box forming machine, the basic principle of foaming is to introduce air into the foaming agent solution. The change of various models is that the gas is introduced in different ways, so the effect is also different.
There are two necessary factors for the formation of foam, one is the blowing agent solution and the other is air, which are dispensable to both. Without a blowing agent solution, no liquid film will form around the gas and there will be no bubbles. Without a gas and blowing agent solution, bubbles cannot form.
In the bubble forming system, the blowing agent solution is the dispersion medium, the gas is the dispersed phase, the gas is dispersed in the liquid to form bubbles, and then many bubbles form bubbles. In addition to the important factors affecting the performance of the blowing agent, the introduction of gas in the blowing agent solution is also another important factor. The introduction of gas into the liquid must be done by the foaming machine, that is, the foaming machine uses a certain method to introduce the gas into the liquid.
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