かみ合い型同方向回転二軸スクリュ押出機のスクリュエレメントの押出特性に関する実験的研究 An Experimental Study on the Pumping Characteristics of Screw Elements for an Intermeshing Corotating Twin-screw Extruder

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A visual study on the pumping characteristics of screw elements for an intermeshing co-rotating twin-screw extruder was conducted by using polystyrene melt as a classic non-Newtonian fluid. Here the output was regarded as the sum of drag flow and pressure flow based on the previous theoretical and experimental studies for single and twin-screw extruders. Therefore the relationship between the output and pressure gradient for a given screw geometry was approximately expressed as a linear dimensionless form which contains two dimensionless constants, the so-called pumping-characteristic parameters related to the element geometry and degree of departure of the used fluid from the Newtonian fluid.<br>The pumping-characteristic parameters for right-handed flight screw elements (RF) with leads of 0.938<i>D</i> and 0.703<i>D</i>, neutral kneading disk (NK) and blister ring (BR) were experimentally determined, where both the NK and the BR are regarded as the special forms of the screw elements without generating drag flow. Moreover the effect of the clearance between the screw and barrel on its pumping characteristics, where the right-handed flight screw element with lead of 0.938<i>D</i> as an example was also observed. The results indicated that the expression of the linear relationship between the dimensionless output and dimensionless pressure gradient for each of the used screw elements is a good approximation. It was also found that the clearance in the range used here greatly affects the pumping characteristic of the RF, and that the latter should not be neglected for predicting the pumping characteristics or extruding and conveying capacities of the RF as well as the screw combination including its elements.

収録刊行物

  • 成形加工

    成形加工 8(6), 411-417, 1996-06-20

    The Japan Society of Polymer Processing

参考文献:  12件中 1-12件 を表示

  • <no title>

    王寧和

    成形加工 6, 755, 1994

    被引用文献1件

  • <no title>

    CARLEY J. F.

    Ind. Eng. Chem. 45, 974, 1953

    被引用文献1件

  • <no title>

    MALLOUK R. S.

    Ind. Eng. Chem. 45, 987, 1953

    被引用文献1件

  • <no title>

    BOOY M. L.

    Polym. Eng. Sci. 20, 1220, 1980

    被引用文献1件

  • <no title>

    GRIFFITH R. M.

    I & EC Fundamentals 3, 181, 1962

    被引用文献1件

  • <no title>

    RAUWENDAAL C. J.

    Polymer Extrusion, 1990

    被引用文献1件

  • <no title>

    WHITE J. L.

    Adv. in Polym. Tech. 7, 419, 1987

    被引用文献1件

  • <no title>

    WANG Y.

    J. Non-Newtonian fluid Mech. 32, 19, 1989

    被引用文献1件

  • <no title>

    CHEN Z.

    Intern. Polym. Proc. 5, 304, 1991

    被引用文献1件

  • <no title>

    TODD D. B.

    Intern. Polym. Proc. 5, 2, 1991

    被引用文献1件

  • <no title>

    LAI-FOOK R. A.

    Polym. Eng. Sci. 29, 433, 1989

    被引用文献1件

  • <no title>

    BROYER E.

    AIChE J. 21, 198, 1975

    被引用文献3件

各種コード

  • NII論文ID(NAID)
    10003812401
  • NII書誌ID(NCID)
    AN10278882
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09154027
  • データ提供元
    CJP書誌  J-STAGE 
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