Introduction to screw extruder

Screw extruder screw extruder There are two types of screw extruders: cold-feed screw extruder and hot-feed screw extruder, both of which are used to extrude rubber semi-finished products and finished products. The cold-feed screw extruder can feed the rubber without heat refining, and through the action of screw extrusion, shearing and stirring, the rubber is plasticized by heat and continuously extruded from the die. And by n-type continuous extrusion. It is mainly composed of screw, barrel, machine head, feeding mechanism and transmission device. The length-to-diameter ratio of the screw of the hot-feed extruder is generally 4 to 6, and the quality of the extruded product can meet the process requirements, and it needs to be equipped with a heat mixer.