The melting performance of single screw extruders

J.F. Ingen Housz, H.E.H. Meijer

Research output: Contribution to journalArticleAcademic

14 Citations (Scopus)


A number of recent screw designs is analyzed for melting performance, using a simple analytical approach based on Tadmor's original work. The melting length for a screw with constant depth channel is used as reference. An ideal compression screw will have a melting length of one-half the melting length of the reference screw. The Maillefer melt separation principle is discussed. The Maillefer screw melts in 2/3 of the length of the reference screw. Screws by Barr, by Dray and Lawrence and by Kim are shown to approach the ideal compression screw. A new design screw, using ideal compression and multiple channels and having a very large screw pitch, is shown to be a considerably more efficient melting device than any of the other, screws discussed.
Original languageUndefined
Pages (from-to)352-359
JournalPolymer engineering and science
Issue number6
Publication statusPublished - 1981
Externally publishedYes


  • IR-70745

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