Pet Cast Film Extrusion Line Continuous Screen Changer

The production process of cast film is that the resin is melted and plasticized by the extruder, then extruded from the head through the slit die opening, so that the molten material clings to the cooling roller, and then stretched and slit and rolled. hydraulic screen changer is indispensable in cast film production line, because of the many functions of cast film products, high requirements, and harsh processing conditions, the requirements for screen changer are very strict; the following Zhengzhou Batte hydraulic screen changer manufacturer will tell you a few requirements for the performance of screen changer in cast film production.

1, fine filtration, no impurities escape.

2, screen changer flow channel without stagnant area, no dead ends, the material does not produce superheated degradation.

3、When replacing the screen, the material flow is stable and the temperature fluctuation is small, which can ensure the continuous production of products for a long time without producing waste products.

4、The screen is inexpensive and does not produce secondary cross-contamination for one-time use.

5、The operation of changing the screen is easy and simple, with less labor and effort.

6、High temperature resistance, high pressure resistance, no material leakage.

7、The screen changer in extruder has stable performance, reliable operation and low application cost.

Optimized role of continuous screen changer in cast film production line.

1. crystal point in cast film production, by appropriately increasing the number of layers and mesh of screen changer filter can improve the problem of poor plasticization.

2.The problem of crystalline spots can be solved by using the automatic non-stop hydraulic screen changer when the production of different kinds of cast film is changed after the machine is shut down and started again.

3. There are foreign substances mixed in the resin and the water content is high, by using automatic screen changer layer by layer filtration can improve the cleanliness of raw materials.

And by using automatic non-stop screen changer, the production speed of cast film can be increased, the output is high, the production cost is low, and the transparency, gloss and thickness of the film can be improved.

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