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Extruders, extrusion drag flow

Because the working of self-wiping twin-screw extruders is mainly based on drag in an open channel, the equations derived for single-screw extrusion can be used. Combination of drag flow and pressure flow in a single chaimel leads to an equation for the throughput per channel ... [Pg.30]

This is also referred to as Couette flow, although Couette flow is only a speciflc type of drag flow. Drag flow is important in extrusion. The two major boundaries that contain the polymer in the extruder are the barrel surface and the screw surface. Since the screw is rotating in a stationary barrel, one boundary is moving relative to the other this causes drag flow to occur. [Pg.202]

Camphell, G. A., P. A. Sweeney, and J. N. Felton, Experimental Investigation of the Drag Flow Assumption in Extruder Analysis, Po/yw. Eng. Set, 32, 1765-1770,1992. Fenner, R. T., Extrusion (Flow in Screw Extruders and Dies), in Computational Analysis of Polymer Processing, J. R. A. Pearson and S. M. Richardson (eds.), Applied Science, London, 1983. [Pg.681]

See other pages where Extruders, extrusion drag flow is mentioned: [Pg.5730]    [Pg.254]    [Pg.254]    [Pg.258]    [Pg.161]    [Pg.547]    [Pg.1719]    [Pg.690]    [Pg.106]    [Pg.26]    [Pg.787]    [Pg.586]    [Pg.345]    [Pg.360]    [Pg.233]    [Pg.240]    [Pg.628]    [Pg.80]    [Pg.271]    [Pg.122]   
See also in sourсe #XX -- [ Pg.131 , Pg.289 , Pg.302 , Pg.303 ]



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