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pro vyhledávání: '"Aaron J. Hade"'
Autor:
Aaron J. Hade, A. Jeffrey Giacomin
Publikováno v:
Polymer-Plastics Technology and Engineering. 41:1-17
In a continuous plastic-pipe extrusion, melt emerges from an annular die and is then drawn freely into a sizing sleeve. Here, we investigate this extensional flow when a pressure difference is applied across the melt cone. A numerical solution to a p
Autor:
Aaron J. Hade, A. Jeffrey Giacomin
Publikováno v:
Polymer Engineering & Science. 40:1862-1869
We investigate how to avoid tearing, egg-shaped cross sections or foldover of the polymer melt cone in tube coating of wire. We use an isothermal Newtonian model for the melt cone. We calculate the melt stress and the draw ratio balance, the paramete
Publikováno v:
Polymer-Plastics Technology and Engineering. 39:23-46
In continuous plastic pipe extrusion, melt emerges from an annular die and is then freely drawn down into a sizing sleeve. Here, we investigate this extensional flow with and without internally applied air pressure. For the case without internal air
Autor:
Aaron J. Hade, A. Jeffrey Giacomin
Publikováno v:
Journal of Engineering Materials and Technology. 123:100-105
A numerical solution is presented for isothermal Newtonian wire coating under vacuum or with an externally applied pressure. Differential equations for the melt cone shape are derived from a force balance on the melt cone. Die design curves are then
Autor:
Aaron J. Hade, A. Jeffrey Giacomin
Publikováno v:
Journal of Polymer Engineering. 20
A numerical solution is presented for isothermal power law tube coating of wire under vacuum or with an externally applied pressure. Differential equations for the melt cone shape are derived from a force balance on the melt cone. The effect of shear