Plastic cast film machine screen changer

The main functions of the casting machine screen changer in the cast film extrusion process include:

Filtering impurities

Filtering impurities and unplasticized particles in the melt through the screen to enhance the physical and chemical properties of the cast film.

Melt reorganization and plasticization

Reorganize and further plasticize the melt by streaming and mixing to improve the dispersion and homogeneity of the blended system.

Establishment of melt pressure

Remove gas from the material by adjusting the pressure to improve the density of the melt and prevent the diaphragm from having holes or air holes.

Guarantee production stability

Maintain stable material flow and low temperature fluctuation during screen change to ensure long time continuous production and reduce scrap.