Screw of twin-screw extruder
The core position in a twin-screw extruder belongs to the screw. The screw is to the extruder what food is to humans. The characteristics of the screw, being the core component, are crucial to the entire extruder. As known from the production process of extrusion machinery, the screw operates under high-temperature, corrosive, and severely abrasive conditions while handling high-torque workloads. Therefore, the screw must possess the following characteristics:
1) High resistance to extreme temperatures, ensuring the screw does not deform under high-temperature environments.
2) Wear resistance, as the extruder operates through the intense friction interaction between two screws during work, ensuring a long service life.
3) High strength, hardness, and toughness, capable of withstanding high torque and operating at high speeds.
4) Corrosion resistance: Regardless of the material, it has a certain degree of corrosiveness, so the requirements for the screw material are very high.
5) Machinability: The peripheral edges of the screw have good cutting and processing capabilities.
6) Resistance to deformation: The screw material after heat treatment has low residual stress and minimal thermal deformation.
In addition to long-term factory-direct supply of various extruded feed and extruded food production lines, Jinan Datong Machinery Equipment Co., Ltd. also provides various spare parts for extruders, such as screws, barrels, molds, etc., to manufacturers. Welcome to inquire and order.
