Interpretation of flow curves from semi-hyperboloidal dies

Venkata Giri Kolli, K. Jayaraman, M. D. Ellul

    Research output: ResearchConference contribution

    Abstract

    The contributions of shear and elongation to the measured pressure drop in flow of polypropylene melts through semi-hyperboloidal dies have been investigated with and without external lubrication. This was done with a set of dies having a fixed ratio of inlet area to outlet area and three different lengths. The flow curves obtained without lubrication have been analyzed for the dependence on length. Two distinct terms have been identified that represent the shear contributions to the measured pressure drop in unlubricated flow.

    LanguageEnglish (US)
    Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
    Pages256-260
    Number of pages5
    Volume3
    StatePublished - 2005
    EventSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States
    Duration: May 1 2005May 5 2005

    Other

    OtherSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005
    CountryUnited States
    CityBoston, MA
    Period5/1/055/5/05

    Profile

    Lubrication
    Pressure drop
    Polypropylenes
    Elongation

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Kolli, V. G., Jayaraman, K., & Ellul, M. D. (2005). Interpretation of flow curves from semi-hyperboloidal dies. In Annual Technical Conference - ANTEC, Conference Proceedings (Vol. 3, pp. 256-260)

    Interpretation of flow curves from semi-hyperboloidal dies. / Kolli, Venkata Giri; Jayaraman, K.; Ellul, M. D.

    Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 3 2005. p. 256-260.

    Research output: ResearchConference contribution

    Kolli, VG, Jayaraman, K & Ellul, MD 2005, Interpretation of flow curves from semi-hyperboloidal dies. in Annual Technical Conference - ANTEC, Conference Proceedings. vol. 3, pp. 256-260, Society of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005, Boston, MA, United States, 5/1/05.
    Kolli VG, Jayaraman K, Ellul MD. Interpretation of flow curves from semi-hyperboloidal dies. In Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 3. 2005. p. 256-260.
    Kolli, Venkata Giri ; Jayaraman, K. ; Ellul, M. D./ Interpretation of flow curves from semi-hyperboloidal dies. Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 3 2005. pp. 256-260
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