Progress in Screw Optimization of Compounding Equipment for Black PE100 for Gas Pipe
The causes of"white spots"in bimodal distribution polyethylene PE100 grade black gas pipes were described briefly from two aspects:bimodal distribution and carbon black filling.The relationship between product quality and mixed extrusion equipment was analyzed.The screw optimization measures and test results of three major manufacturers were classified and organized.The relationship between screw geometry and mixing effect was analyzed in detail from three aspects:twin-screw rotation direction,meshing degree and functional zone length,and its future development was prospected.
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