What are the functions of various parts of the film blowing machine?
1.The extruder is responsible for melting,plasticizing and extruding the resin,which mainly affects the plasticization of the film.
2.There is a helix in the head,which is responsible for the cross mixing of plastics and has an impact on the tension and strength of the film.
3.The die head controls the blowing ratio of the membrane,which affects the thickness and stability of the membrane,generally 1:3.5
4.The cooling device is responsible for cooling the film bubble,which has a great impact on the film strength,stability and brightness.
Other parts have no great influence on the film,as long as the film is flat and the strength meets the requirements.
