The twin screw extruder is one of the most frequently used equipment for producing thermoplastic composite materials. Its wide range of applications and high efficiency have prompted more and more companies for plastic pipe and bar processing to search for a complete variety of twin screw extruders. The more important component of the twin screw extruder is the screw, so what performance requirements must the screw meet to ensure the quality of the material?
The screw is an important supporting component of the twin screw extruder, and its quality directly affects the plasticizing effect and output of the material. It needs to continuously push batch after batch of materials close to the extrusion port at a quick rotate speed. At the same time, the screw itself needs to withstand great friction and corrosion caused by the decomposition of plastic during the movement. Therefore, only the screw with a high mechanical strength can make the material continue to move forward.
In the high-speed plasticizing and forming operation of the twin screw extruder, the screw needs to be continuously driven to shear and plasticize the plastic. At the same time, the material needs to rely on the huge torque of the screw so that it can be driven continuously after entering the barrel. Therefore, the screw of the twin screw extruder not only needs a huge torque, but its own characteristics need to be able to meet the high temperature and high pressure working environment in the barrel.
The work of the screw of the twin screw extruder is to promote the continuous forming and extruding of the material in the high-temperature barrel. At the same time, the alternating heating and cooling functions in the barrel will produce a certain pressure drop. The screw that has been operating in the barrel for a long time needs to have the characteristics of not being easily deformed under high temperature and high pressure working environment. Only such characteristics can ensure that the plasticization of the material obtains a better effect.
The wide application of twin screw extruders has promoted the rapid development of machinery, electronics and plastics industries. These industries have great confidence in quality-certified twin screw extruders. Especially for the important part of the extruder, the screw not only has high mechanical strength in today's production applications, but also has a huge torque and can adapt to long-term operations at high temperature and high pressure.
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