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          Analysis of the Difference between Parallel and Conical Twin Screws
          Author:administrator ?? Posted on:2018-04-25 12:01:34 ?? Text:【Big】【Medium】【Small】Browse (109)
          Summary:Is a parallel twin-screw extruder good, or a conical......

          Parallel and conical twin screw extruders

          Is a parallel twin-screw extruder good, or a conical twin-screw extruder? This is a question often asked by the user when choosing a twin-screw extruder.

          Twin screw extruder classification

          According to the direction of rotation of the twin-screw, the extruder can be divided into two extruders: the same direction and different direction. The same direction of the extruder is the same direction of rotation when the two screws work, the opposite direction refers to the two screws. When working, the direction of rotation is opposite.

          According to whether the axial line of the twin screw is parallel or not, it can be divided into two types of extruders, where the axis lines are parallel and the axis lines intersect. The axis line is parallel to the twin-screw extruder, and the axis line intersects with a conical twin-screw extruder.

          Twin screw extruders also have meshing and non-meshing points.

          Parallel and Conical Twin Screw Extruder Same

          There is a conveying mechanism that forcibly advances the plastics, a good mixing plasticizing ability and a dewatering ability, and has basically the same adaptability to the forming process of materials and plastic products.

          Parallel and Conical Twin Screw Extruder Differences

          1. Diameter: The diameter of the parallel twin screw is the same, and the diameter of the small end of the conical twin screw is different from that of the big end.

          2. Concentricity: The center-to-center distance of the flat twin-screw is the same. The two axes of the conical twin-screw are at an included angle. The size of the center distance changes along the axis.

          3. Length-diameter ratio: parallel double screw (L/D) refers to the ratio of the effective length of the screw to the outer diameter of the screw, and conical twin screw (L/D) refers to the length of the effective part of the screw and the diameter of the big end and small The ratio of the average of the end diameters.

          From the above, we can clearly see that the most significant difference between the parallel and conical twin-screw extruders is that the screw barrels have different geometry, which leads to many differences in structure and performance, although the characteristics of the two are different. But there are their own advantages.

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