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Description of production process of PE protective film for aluminum
- Jan 04, 2019 -

In the process of producing a PE protective film for aluminum, a blown film machine is mainly used to heat and melt the PE plastic particles and then blow them into a film. During processing, the dry polyethylene particles are first added to the lower hopper, and the hopper enters the screw by the weight of the particles themselves. When the pellets are in contact with the helical bevel, the rotating bevel faces the plastic and the bevel The vertical thrust of the surface causes the plastic particles to move forward continuously.


In the process of this shift, the raw material of the PE aluminum protective film, plastic, and the friction between the screw, the plastic and the barrel, and the collision between the particles, and the gradual melting of the external heating of the barrel .


Next, the plastic in the molten state passes through the filter of the film blowing machine head, and after removing the impurities, it is discharged from the die die, and after being inflated, the air ring is cooled, it is pressed by the herringbone plate, and then taken up by the pulling roller. The finished PE protective film can be rolled into a cylinder.