| Regularity in Extrusion of Curved Rubber Hose and Its Applied Mathematic Model |
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| DOI： |
| Key Words: curved rubber hose；extrusion；plate model；bending radius；speed ratio |
| Author Name | Affiliation | | He Hong | Beijing University of Chemical Technology |
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| Abstract: |
| An experimental and theoretical study was made on the regularity in extrusion of curved rubber hose and an applied mathematic model was established.The relationship among the bending radius of curved rubber hose，the geometrical parameters of extruder head and the rheological parameters of compound could be reflected by regarding the eccentric annulus as parallel plates and their quantitive relationship could be correctly described by a formula modified through the experiment；a mathematic model for the computered-control in extrusion was established based on the said formula；a bicylindrical coordinate was used to calculate the axial laminar flow of power-law fluid in the eccentric annulus with finite difference method，and the calculated bending radius was basically fit to the measured one in the experiment. |
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