1. Processing temperature. The processing temperature of bottle-shaped blow molding products is mainly related to the characteristics of the plastic raw materials and equipment used.
Under normal circumstances, medium and small barrel-shaped blow molding products generally use HDPE or a blend of HDPE and LDPE with good fluidity, and the processing temperature is between 130 and 180 ℃, and the processing temperature of a few materials may be higher than 180 ℃. The temperature setting is set from low to high in sequence from the feed port of the extruder to facilitate the normal processing and molding.
2. The screw speed of the extruder. The screw diameter of the extruder system of the medium-sized hollow molding machine is smaller, and the screw speed can be relatively high. The speed can be adjusted according to the characteristics of the iron barrel product and the extruder screw, and the screw speed can be controlled. At 10～70r/min.
3. The pressure of the hydraulic system. In the iron drum, the pressure of the hydraulic system of the small and medium-sized hollow molding machine is adjusted between 8 and 14MPa, which is mainly adjusted according to the molding characteristics of the blow molded product. When the molded blow molded product is satisfied, it can be adjusted. Adjusting the pressure of the hydraulic system to work under a lower pressure state is conducive to energy saving and prolonging the service life of the hollow molding machine.https://www.fhpails.com/