Structure and classification of twin-screw extruder

 Twin-screw extruder consists of several transmission device, feeding device, a cylinder and a screw, etc., the role of each member and the single-screw extruder similar. Single-screw extruder difference is that a twin-screw extruder has two parallel screw placed in the same barrel. Twin-screw extruder there are many different forms, the main difference lies in the different screw configuration. Twin-screw extruder screw configuration than the single-screw extruder is much more complex, which is due to a twin-screw extruder screw as well as the direction of rotation, the degree of engagement and so on. Commonly used in PVC profile extrusion twin-screw extruder is usually close engagement and counter-rotating screw, few have the use of a co-rotating twin-screw extruder, but generally only operated at low speed, about 10r / min range. The high-speed intermeshing co-rotating twin screw extruder for mixing, granulating or exhaust as a continuous chemical reactor using such an extruder screw speed maximum range of 300 ~ 600r / min. Non-delivery mechanism meshing extruder with intermeshing type extruder different, relatively close to the single-screw extruder machine conveyor mechanism, the two are different in nature. Address: Hubei Wuhan East Lake Jinshan Avenue 1304 Telephone: 13554140363 Raymond