[Recommendation] The development history of the foaming machine How to use the foaming machine

Our company is a professional company that provides polystyrene EPE foam machine and other products and services. Do you know how to use foam machinery? This article will give you a specific introduction on this aspect. Let’s take a look at the 'development process of foaming machine and how to use foam machinery'. The foaming machine has appeared in foreign countries as early as its original model is to use the impeller to rotate at high speed , So it is also called 'bubbling machine'. Later, with the continuous advancement of technology, the technical content of foaming machines continued to increase, new models continued to appear, and different technical systems were formed. my country began to use foaming machines as early as the 1950s, but instead of special foaming machines, mortar mixers were used. That is, the foaming agent is directly added to the mortar mixer or concrete mixer, and the foaming machine and the mortar or concrete are mixed together to generate foam. Later, around the 1970s, dedicated foaming machines, namely high-speed impeller foaming machines, began to appear. In the future, the technology has been continuously upgraded and replaced, and now it has developed into a third-generation model with high-pressure inflation as the main body, which can basically meet the needs of foam concrete. However, compared with foreign developed countries, my country's foaming machine has a low degree of automation, and there is still a certain gap in foaming performance, which needs to be further improved. From the perspective of development trends, this gap is gradually narrowing and narrowing. The main advantage of my country's foaming machine is its low price. Most of the imported models are more than 100,000 yuan/unit, and the highest is 15-200,000 yuan/unit, while most domestic models are tens of thousands of yuan/unit, and the simple and small models are even several thousand yuan/unit. They have certain advantages in price. Therefore, it is suitable for foaming according to national conditions, and the development of foaming machines is welcomed by most small and medium-sized enterprises. More people will pay attention: a certain amount of foaming agent and water vapor are retained in the beads of the foam machinery and equipment. When they are out of the machine, they will condense into a liquid, and the liquid foaming agent will dissolve into the polystyrene to make bubbles The pressure in the medium drops quickly, negative pressure (partial vacuum) appears in the bubble, and the beads are very soft and easily deformed. Therefore, when air is sent, try not to make the wind pressure too large. The inner wall of the duct should be as smooth as possible, and the bending radius should be as large as possible (to reduce collision resistance). The pipeline should be a good conductor of electricity, and the entire line must be grounded to avoid static electricity. Sparking, the transmission speed should not exceed 8m/s to avoid damage to the beads. A certain amount of foaming agent and water vapor are retained in the pre-expanded beads of the foam machinery and equipment. When they are discharged from the machine, they will condense into a liquid, and the liquid foaming agent will dissolve into the polystyrene to quickly reduce the pressure in the bubbles. , There is negative pressure (partial vacuum) in the bubble, and the beads are very soft and easily deformed. Therefore, when air is sent, try not to make the wind pressure too large. The inner wall of the duct should be as smooth as possible, and the bending radius should be as large as possible (to reduce collision resistance). The pipeline should be a good conductor of electricity, and the entire line must be grounded to avoid static electricity. Sparking, the transmission speed should not exceed 8m/s to avoid damage to the beads. The beads of the foam mechanical pre-expansion machine are wet. After being released from the pre-expansion machine, due to the development of suction, how to use the foam machinery to condense the air, it suddenly encounters cold, causing the foaming agent in the honeycomb cells to condense and cause negative formation in the cells. Therefore, the beads must be placed for a period of time after the pre-expansion. On the one hand, they are dried, and on the other hand, they are allowed to infiltrate the air to eliminate the negative pressure, so that the internal pressure and external pressure in the cells are balanced to prevent the cells from collapsing and The beads are elastic. The process of drying, cooling and stabilizing the cell pressure of the EPS beads just out of the pre-expander is called maturation. Maturation improves the further expansion of the pre-expanded beads during the molding process, the fusion between beads and the elasticity of the beads, which is beneficial to improve the quality of EPS products. The content introduced above is about 'the development process of foaming machine and how to use foam machinery'. After reading our introduction, you must have a sufficient understanding of this aspect. In addition to this, we also introduced the polystyrene EPE foam machine, manufacturers, manufacturers, etc. in another article, so stay tuned! Keywords in this article: Foaming, Development, Model, Foaming agent, Appearance, Definite
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