2022.08.19
When supplying air, try not to make the wind pressure too large, and the bending radius should be as large as possible (to reduce collision resistance). , the air supply speed shall not exceed 8m/s.
There is a certain amount of foaming agent and water vapor left in the beads pre-blown by the foaming mechanical equipment. When the power is turned on, it condenses into a liquid. The liquid foaming agent dissolves in the polystyrene, and negative pressure (partial vacuum) appears in the bubbles. The pressure in the bubbles drops immediately, and the beads are soft and easily deformed. Therefore, when supplying air, try not to make the wind pressure too large, the inner wall of the pipeline should be as smooth as possible, and the bending radius should be as large as possible (to reduce collision resistance). s, to avoid electric ignition in the use process of eps static foam machinery.
The beads that have just come out of the foam mechanical pre-expansion machine are all wet. After they are released from the pre-expansion machine, they absorb air and suddenly cool down, causing the foaming agent in the honeycomb foam cells to condense, forming a negative pressure in the foam cells, and the beads are pre-heated. It must be placed for a period of time after the hair is made. On the one hand, it is dry, and on the other hand, the negative pressure is eliminated by infiltrating air, and the internal pressure and external pressure in the foam pores are balanced.
The process of drying for a certain period of time is called EPS bead curing after cooling and stable cell pressure. Aging improves the fusion between the pre-formed beads and the elasticity of the beads, and the further expansion of the beads during the molding process is beneficial to improve the quality of EPS products.
In fact, if we want to extend the service life of this type of equipment, we not only have to pay special attention to its quality when purchasing this type of equipment, but as long as the daily maintenance work is done well, it can be guaranteed.
Daily work maintenance. In fact, the maintenance of the foam molding machine is also divided into two parts. The daily maintenance work is relatively simple. We try to implement the maintenance work before and after each use of the equipment. Therefore, there are some tasks to be done every day. Before the shift every day, some parts may also need to use lubricants, and we must still test the equipment.
Regular maintenance work. After all, some internal parts are definitely prone to wear and tear, and regular maintenance of the molding machine is also very critical. If the internal parts are worn out, such equipment is used every day, and we must also replace the foam. The maintenance of the foam molding machine is relatively simple to avoid more serious failures of the equipment.
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