A possible new ultrasonic thermo-pellicular effect and applications
Source abstract
Abstract
The paper presents some experimental works that allow concluding that a new effect of the ultrasounds, “ultrasonic thermo-pellicle effect”, may be accepted. It was identified during the application of the ultrasonic energy to melted polymers in flowing state. The modifications of the properties at the interface between the melted material and the metallic die could postpone, due to ultrasonic activation, the beginning of the “stick-slip” phenomenon allowing the increase of the productivity and the product quality and the flow of the thermoplastic material through the die of the extrusion head.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Coal Combustion and Slurry Processing · Engineering Technology and Methodologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Kuttruff H., Ultrasonics-Fundamentals and Applications, Elsevier Appl.Sci.,Paris, (1991)10.1007/978-94-011-3846-8 ↗
2. Rozenberg L. D., Physical Principles of Ultrasonic Technology, Vol. I and II, Plenum Press, N.York, (1973)
3. Agassant J.F., Avenas P., e.a., ’Polymer Processing Principles And Modeling’, Hanser Publisher, (1996)
4. Benallal A., thèse de doctorat, L’univ. de Pau et des Pays de L’adour, (1991)
5. Durand V., thèse de doctorat, L’ecole Nationale Supérieure De Mines De Paris, (1993)
6. Trotignon J.F., Piperaud M., E.A. – Precis des Matieres Plastiques. Structures, Proprietes, Mise en OEuvre et Normalisation, Afnor-Nathan, 5ed, (1991)
7. Shin-Ichi M., J. of Materials Processing Technology, vol.40, No.3-4/1994, (1994), p.443
8. Stan D.V., thèse de doctorat, Univ. Montpellier 2/France, (1999)
9. Dym J.B., Injection Molds And Molding - Practical Manual, Van Nostrand Reinhold Comp. , New York, (1987)
10. Stan D.V, Iclanzan T., Abadie M.J.M., ’L’effet de Surface dans le Cas de L’activation Ultrasonique des Milieux Visqueux sous Pression’, Synthetic Polymer Journal, tome VII, (2000), p. 84–92
11. Iclanzan T., Stan D.V., ’Ultrasonic Activation Limits in Thermoplastics Injection and Extrusion’, Materiale Plastice, vol. 42, nr.2/2005, (2005), p. 93
12. El Kissi N., Piau J. M., Rhéologie Pour la Transformation des Polymères Fondus, In : Proceedings GDR 901, IMG Grenoble, (1991), p.171
13. Piau J.M., Piau M., ’Easier Flow of Viscoplastic Materials With Ultrasonic Longitudinal Wall Motion’, J. of Non-Newtonian Fluid Mechanics ,104 (2-3), (2002), p.18510.1016/S0377-0257(02)00024-1 ↗
14. Huilin L., ’Influence of Ultrasound on the Processing and Structure of Polypropylene During Extrusion’, Polymer Engineering And Science, vol. 7, issue 1/2002, (2002), p.87
15. Guangshun C., Shaoyun G., Huilin L., ’Ultrasonic Improvement of Rheological Behaviour of Polystirene’, J..Of Applied Polymer Science, vol. 84, issue 13/2002, (2002), p.2451
16. Yurong C., Huilin L., ’Influence of Ultrasounds on the Processing and Structure of Polypropylene During Extrusion’, Polymer Engineering & Science, vol. 42, issue 7/2002, (2002), p.1534
17. Gongde L., Huilin L., ’Extrusion of Ultrahigh Molecular Weight Polyethylene under Ultrasonic Vibration Field’, J. Of Applied Polymer Science, vol. 89, issue 10/2003, (2003), p.2628
18. Shaoyun G., Yuntao L., e.a., ’Ultrasonic Improvement of Rheological and Processing Behaviour of LLDPE During Extrusion’, Polymer International, vol. 52, issue 1/2003, (2003), p.68;
19. http://ultramelt.org , “Ultrasonic in the melt System” project (2003-2005), consulted Jan. 2008
20. Iclanzan T., Stan D.V., ’Hot Runner Injection Mold With Ultrasonic Activation’, Patent RO-118576 B
21. Iclanzan T., Stan D.V., ’Method and Die for Ultrasonic Activated Extrusion’, Patent RO-118400 B
22. Iclanzan T., Stan D.V., ’Ultrasonic Activated Extrusion Die’, Patent Claim 00014/2007/RO
23. Iclanzan T., Stan D.V., ’Ultrasonic Activated Hot Runner Injection Mold’, Patent Claim A00793/2006/RO
24. Stan D.V., Iclanzan T.A., Tulcan A., ’Considerations on the Optimised Design of the Ultrasonic Horn for Industrial Applications’, Academic J. Of Manufacturing Engineering - AJME, vol. 2, nr. 3/2004, (2004), p.67.