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              Advantages and disadvantages of positive and negative thread

              The positive thread element is mainly used for conveying materials. The shape of screw groove of positive thread element can be rectangular or other shapes. At present, spiral groove shape is mostly us...
              2020-10-21

              Working principle of twin screw extruder

              Extruder is an important equipment for plastic processing, and it can not be separated from the screw components in use. Now we will understand the principle of twin-screw extruder and the classificati...
              2020-10-21

              How to find the method of extrusion technology progress

              Extruder is one of the main varieties of plastic machinery, accounting for 31% of the total output value of plastic machinery. The plastic products processed by extruder account for about 1 / 3 of the ...
              2020-10-21

              How to reduce wear and improve the use of screw barrel

              The screw of injection molding machine works under high pressure, high temperature, high mechanical torque and high friction for a long time. The first several factors are required by process condition...
              2020-10-21
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