The film blowing machine screw section is screw groove fixed depth, beyond its main function of mixing, transporting melt glue, and metering, it also need to provide sufficient pressure to maintain uniform melt glue temperature and to stabilize molten plastic flow. Long metering zone means good mixing effect, but if it is too long, the melt will stay much longer, lead to thermal decomposition. However, too short metering zone causes uneven temperature.
Film blowing machine screw section for the screw groove ditch deep groove fixed, the main function of mixing, melt output delivery, measurement, but also must provide sufficient pressure to maintain a uniform melt temperature and melt flow of molten plastic. Long, the mixing effect is good; the measurement section is too long is easy to make the melt stay for too long, and produce thermal decomposition; too short is easy to make the temperature uneven.
Film blowing machine screw aspect ratio = working length of screw (MM) ÷ screw diameter (MM)
Film blowing machine screw compression ratio = feed tooth depth (MM) ÷ metering depth (MM)
Film blowing machine screw features:
1) Film blowing machine screw aspect ratio, plasticizing ability, uniform temperature distribution, automatic temperature control, blown film uniform brightness and good product performance;
2) Users can configure the rotating head;
3) curly variety, can be arbitrary choice;
4) Film blowing machine screw using advanced frequency conversion technology, energy efficient;
Use the following advantages:
1, the film blowing machine screw using the most advanced alloy spraying technology, the precision machining, higher hardness, better corrosion resistance, long life, nitriding screw life is 2 to 3 times;
2, Large aspect ratio of screw, strong plasticizing ability, uniform temperature distribution, automatic temperature control and blown film.
3, the whole structure is compact, stable operation, single-arm structure, economical and practical, traction device integration and self-adjustable lift;
4, the use of advanced frequency conversion technology, energy efficient;
5, curly forms of diversity, can be arbitrary choice;
6, according to user needs to configure the rotating head.