AN ADDITIVE APPROACH TO CYCLE TIME REDUCTION IN ROTATIONAL MOLDING

摘要

Rotational molding is a versatile process for the production of a wide variety of plastic parts, but suffers from the disadvantage of long cycle times as compared to other plastic processing methods.A Cycle Time Reduction Committee commissioned by ARM found that rotational molding cycle times can be decreased by up to 50% by adoption of three technologies:.The use of internal air pressure to accelerate the sintering and densification process during heating; The use of internal air cooling to speed up the solidification process during cooling; and Monitoring of internal air temperature and pressure to enable improved process control.