Cast film is a special processing technology that can evenly stretch molten plastic into a film.
During the film extrusion process, the pressure transmission mechanism of the screw and barrel has an important impact on production efficiency. We can control the pressure during the extrusion process through various methods to optimize production efficiency.
Temperature control is a key factor in maintaining the stability of the extrusion process. By adjusting the heating and cooling system of the barrel, the viscosity and fluidity of the molten material inside the barrel can be affected, thereby controlling the pressure during the extrusion process.
Equally important is the rotation speed of the screw. Faster rotation speed will cause higher extrusion pressure. The rotation speed of the screw should be kept within an appropriate range, because too high extrusion pressure may cause the extrusion of the film problem appear.
Different types of screw designs will also affect the extrusion pressure. Properly designed screw pitch and structure can help stabilize the pressure.
It should be noted that the extrusion pressure should be controlled within a stable range. Too high or too low extrusion pressure is not conducive to improving production efficiency and may even lead to product defects, so users need to implement reasonable pressure control through appropriate methods.