Year 2015,
Volume: 5 Issue: 4, 70 - 77, 28.12.2015
Abstract
This paper investigated the pressure drop during the extrusion processes. The objectives of this investigation were to increase efficiency of plastic extrusion which plastic equipment produced. In the experimental processes, two rectangular dies were used. HD 7255 thermoplastic was used as the fluid material of extrusion. A difference occurred between inlet and outlet. This difference was 2.34 MPa in terms of the pressure drop and was 0.001216 (kg s-1) in terms of the flow rate. The results of power law model is found in good agreement with experimental results for outlet sections of process.
References
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- Newtonian extrudate swell. Computers & Fluids, 57: 195–207
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- free surface flows. Comput. Methods Appl. Mech. Engrg. 256: 101–116
Year 2015,
Volume: 5 Issue: 4, 70 - 77, 28.12.2015
Abstract
References
- Baldi, F.; Franceschini, A.; Briatico-Vangosa, F.; Locati, D. and Riccò, T. 2010. Oscillating flow in
- capıllary dies for a HDPE melt: effects of extrusion parameters. Int J Mater Form vol. 3 Suppl
- :543– 546
- Burghelea, T.I.; Griess, H.J. and Münstedt, H. 2010. Comparative investigations of surface
- instabilities (“sharkskin”) of a linear and a long-chain branched polyethylene. Journal of Non-
- Newtonian Fluid Mechanics, vol. 165, Issues 19–20, pp. 1093–1104
- Carneiro, O. S., Nobrega, J. M., Pinho, F. T., Computer aided rheological design of extrusion dies for
- profiles, Journal of materials processing technology, 114, pp. 75–86, 2001.
- Carneiro, O. S., Nobrega, J. M., Recent developments in automatic die design for profile extrusion,
- Plastics Rubber and Composites, 33, pp. 400-408, 2004.
- Dubbeldam, J.L.A. and Molenaar, J. 2003. Dynamics of the spurt instability in polymer extrusion. J.
- Non-Newtonian Fluid Mech. 112: 217–235
- D.M. and Tang, H.S. 2007. Inverse problem solution of squeeze flow for parameters of generalized
- Newtonian fluid and wall slip. Journal of Non-Newtonian Fluid Mechanics, 143: 133–140
- Ferrás, L.L. Nóbrega, J.M. and Pinho F.T. 2012. Analytical solutions for Newtonian and inelastic non-
- Newtonian flows with wall slip. Journal of Non-Newtonian Fluid Mechanics, 175–176: 76–88
- Kostic, M. M., Reifschneider, L. G., Design of Extrusion Dies, Encyclopedia of Chemical Processing,
- pp. 633-649, 2006.
- Mitsoulis, E.; Georgiou, G.C. and Kountouriotis, Z. 2012. A study of various factors affecting Kalyon,
- Newtonian extrudate swell. Computers & Fluids, 57: 195–207
- Rahimia, S.; Durbanb, D. and Khosid, S. 2010. Wall friction effects and viscosity reduction of gel
- propellants in conical extrusion. Journal of Non-Newtonian Fluid Mechanics, 165: 782–792
- Xu, X.; Ouyang, J.; Yang, B. and Liu, Z. 2013. SPH simulations of three-dimensional non-Newtonian
- free surface flows. Comput. Methods Appl. Mech. Engrg. 256: 101–116
There are 24 citations in total.
Details
| Journal Section | Articles |
|---|---|
| Authors | |
| Publication Date | December 28, 2015 |
| Submission Date | December 28, 2015 |
| Published in Issue | Year 2015 Volume: 5 Issue: 4 |
