Melting section structure of screw in single screw extruder

The utility model discloses a melting section structure of a screw in a single screw extruder, which can improve the melting velocity of plastic solids and comprises a screw main body and main and auxiliary screw threads arranged on a melting section of the screw main body. The main and auxiliary sc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WU TINGQI, GAO XUEFEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a melting section structure of a screw in a single screw extruder, which can improve the melting velocity of plastic solids and comprises a screw main body and main and auxiliary screw threads arranged on a melting section of the screw main body. The main and auxiliary screw threads have the same lead. Along the material feeding direction, the width of a melt screw channel formed between the main and auxiliary screw threads is narrower than that of a sold screw channel formed between the auxiliary and main screw threads, and the melt screw channel is deeper and deeper, while the solid screw channel is shallower and shallower. The single screw extruder adopting the screw with the melting section structure can save energy consumption by about 30 percent and improve the production efficiency by over 50 percent.