2023.02.20
1. Fully understand the types of EPS foam machines
Although the basic principle of the EPS foam machine is to introduce gas into the aqueous solution of the foaming agent, the method of introducing gas is different for different types of foam machines. Understanding the advantages and disadvantages of various types of foaming machines plays a key role in accurately selecting foaming machines for manufacturers.
For example, the low-speed stirring type adopts low-speed rotating blades, the gas output value is low, and the foaming ability is low. The high-speed impeller type is driven by a high-speed rotating impeller, the diameter of the bubbles cannot be controlled, and the foam is not uniform.
Second, carefully grasp the basic technical parameters of the foaming machine
For manufacturers, it is necessary not only to understand the model and foaming principle of the EPS foaming machine, but also to understand several main technical parameters of the foaming machine to determine whether it meets their own production requirements.
1) Output value: The output value is the amount of foam produced, which should be slightly higher than 20% of the individual foam demand to leave room. Bubble generation should be based on the following limits, not upper limits;
2) Installed capacity: The installed capacity is the total installed power, which is of great significance to the adaptability of the calculation circuit to the total power consumption;
3) Equipment scale: this parameter is a necessary element of the overall planning of the workshop;
4) Bubble diameter scale: Generally, the comparison should be made according to the requirements of specific commodities for the bubble diameter.
Third, carefully understand the quality of foaming
It is pointed out that the foaming quality of the foaming machine should be measured mainly from three aspects: foam density, foam uniformity and foam water secretion.
Foam fineness: refers to the size of the bubble diameter, the smaller the bubble diameter, the finer the foam, the better the stability of the foam, the higher the strength of the produced product, and the better the insulation performance.
Foam uniformity: means that the diameter of the bubbles should be uniform. The smaller the diameter of the bubbles, the narrower the scale, the more uniform the force on the product, and the better the effect.
Foam water secretion: refers to the amount of foam agent aqueous solution after the foam bursts. The lower the secretion of foam water, the lower the water content of the foam, and the better the foaming performance of the foaming machine.
Whether the foaming machine can meet the requirements of the above three aspects should be approved by the testing machine. The foam released by the foaming machine must be a spongy foam with less water content and more delicate.
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