What types of plastic extruders are there?
The single-screw extruder occupies an important position both as a plasticizing and granulating machine or as a molding processing machine. In recent years, the single-screw extruder has made great progress.
The twin-screw extruder has good feeding characteristics, is suitable for powder processing, and has better mixing, exhaust, reaction and self-cleaning functions than the single-screw extruder, and is characterized by processing plastics with poor thermal stability and blending It also shows its superiority when feeding. On the basis of twin-screw extruders, in order to process blends with poor thermal stability more easily, multi-screw extruders have been developed, such as Guanghua plastic extruders.
1. According to the number of screws, it can be divided into single-screw extruder, twin-screw extruder and multi-screw extruder;
2. According to whether there is a screw in the extruder, it is divided into screw extruder and plunger extruder;
3. According to the operating speed of the screw:
Ordinary extruder: the speed is below 100r/min;
High-speed extruder: the speed is 100-300r/min;
Ultra-high-speed extruder: the speed is 300-1500r/min.
4. Classification according to the assembly structure of the extruder: there are integral extruders and separate extruders;
5. According to the spatial position of the screw in the extruder, it can be divided into horizontal extruder and vertical extruder;
6. According to whether the extruder is vented during processing, it can be divided into vented extruder and non-vented extruder.
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[拓展名称] include a great variety of devices with a wide range of complexity: from simple plastic extruder machine manufacturers used since prehistoric times to the complex of modern mechanized extruder machine manufacturers.