{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,5]],"date-time":"2024-09-05T19:06:07Z","timestamp":1725563167304},"reference-count":12,"publisher":"ASMEDC","content-domain":{"domain":["asmedigitalcollection.asme.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2006,1,1]]},"abstract":"<jats:p>A wide variety of plastic profiles are produced in extrusion lines, which are basically comprised by an extruder, a die and a calibrator. Because the initial cooling stages will determine the final quality of the extrudate, the study of the thermal modeling of the calibrator is of great interest. In this context the use of computational tools is becoming increasingly useful for the calibrator design and optimization. Therefore, reliable experimental data is of paramount relevance to validate thermal models. For that purpose, an experimental apparatus was set-up at the laboratory, which includes: a calibrator, a heat chamber, a data acquisition system, a traction system and various polymer test samples. The experimental facility is designed to obtain data inside the polymer. Based upon computer simulations a calibrator was built in a aluminum alloy with 600\u00d7150\u00d780 mm. The cross section aperture for the polymer profile is of 30\u00d716 mm. Low inertia thermocouples were located at various positions and at depths varying between 1.0 to 5.0 mm from the calibrator\/polymer interface. This is the region where greater thermal gradients are expected. Other sensors (at the surface) can be used to determine the interface thermal resistance. Data were collected by a high-speed data acquisition board (data a rate up to 500 kHz), with electronics for signal conditioning in order to compensate the low level signal of thermocouples. The data are stored for subsequent processing. All the process is controlled using an interface developed in LabView. Preliminary testes were carried out in PVC samples due to its high melting point and availability. The results proved the usefulness of the test facility to obtain relevant data concerning the thermal behavior of calibrators.<\/jats:p>","DOI":"10.1115\/imece2006-14428","type":"proceedings-article","created":{"date-parts":[[2008,4,3]],"date-time":"2008-04-03T14:01:02Z","timestamp":1207231262000},"page":"569-575","update-policy":"http:\/\/dx.doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":1,"title":["Development of an Experimental Facility to Test Polymer Extrusion"],"prefix":"10.1115","author":[{"given":"P. A. M.","family":"Lobarinhas","sequence":"first","affiliation":[{"name":"University of Minho"}]},{"given":"S. F. C. F.","family":"Teixeira","sequence":"additional","affiliation":[{"name":"University of Minho"}]},{"given":"J. C. F.","family":"Teixeira","sequence":"additional","affiliation":[{"name":"University of Minho"}]}],"member":"33","published-online":{"date-parts":[[2007,12,14]]},"reference":[{"key":"2020010923172812400_r1","unstructured":"Teixeira\n              JCF\n            ; CovasJ; TeixeiraSF; CarneiroO and OliveiraP - \u2018Design and Optimisation of Calibrators for Thermoplastics Profile Extrusion\u2019, in NAFEMS World Congress \u201997, Vol. 1, pp 606\u2013615, Nafems Publications. 1997."},{"key":"2020010923172812400_r2","unstructured":"Kleindienst\n              V.\n            \n           (1973) \u201cEffective Parameters for Vacuum Calibration of Extruded Plastic Pipes\u201d, translated from Kunststoffe -German Plastics Stuttgart, Vol. 63, 7\u201311."},{"key":"2020010923172812400_r3","unstructured":"Menges\n              G.\n             and KalwaM. (1987), \u201cFEM simulation of heat transfer in plastic processing\u201d, Kunststoffe-German Plastics, Vol. 77, 797\u2013803."},{"key":"2020010923172812400_r4","unstructured":"Pittman, J., Whitham, G.P. and Beech, S., (1992), \u201cThe Cooling Phase of Large Pipe Manufacture\u201d, Plastics Pipes VIII Pri Eindhoven."},{"key":"2020010923172812400_r5","doi-asserted-by":"crossref","unstructured":"Sheehy\n              P.\n             and TanguyP. A. (1994), \u201cA Finite Model for Complex Profile Calibration\u201d, Polymer Engineering and Science, Vol. 34, 8, 650\u2013656.","DOI":"10.1002\/pen.760340806"},{"key":"2020010923172812400_r6","unstructured":"Fradette\n              L.\n            , TanguyP. A., ThibaultF. and SheehyP. (1995), \u201cOptimal Design in Profile Extrusion Calibration\u201d, Journal of Polymer Engineering, Vol. 14 (4), Pa\u00b4g. 295\u2013322."},{"key":"2020010923172812400_r7","unstructured":"Lingenheil\n              M.\n             and KaltentalPraller, A. (1997), \u201cIce-cold inside\u201d, translated from Kunststoffe Plast Europe, Vol. 87, 162\u2013164."},{"key":"2020010923172812400_r8","unstructured":"Szarvasy, I. (2000), \u201cSimulation of Complex PVC Window Profile Cooling During Calibration With Particular focus on Internal Heat Exchange\u201d, 3rd Esaform Conference on Material Forming, 27\u201330."},{"key":"2020010923172812400_r9","unstructured":"Placek, L., Svabik, J. and Vlcek, J. (2000), \u201cCooling of Extruded Plastics Profiles\u201d, 131\u2013132."},{"key":"2020010923172812400_r10","unstructured":"Conrad, U. and Pittman, John F.T. (2000) \u201cPVC Profile Calibration: Comprehensive Trials Relating Process Outcomes and Operating Conditions\u201d, 3rd ESAFORM Conference on Material Forming, 23\u201326."},{"key":"2020010923172812400_r11","unstructured":"Conrad, U and Pittman, J.F.T., (2001), \u201cPVC Profile Calibration: Dependence of Profile Geometry and Shrinkage on Processing Parameters\u201d, Center for Polymer Processing Simulation and Design, pp 207\u2013210."},{"key":"2020010923172812400_r12","unstructured":"Conrad, U and Pittman, J.F.T., (2002), \u201cPVC Profile Calibration: Investigation in the Influence of Processing Conditions on Shrinkage and Profile Geometry in uPVC Calibration\u201d, PPS18, Guimara\u02dces, Portugal."}],"event":{"name":"ASME 2006 International Mechanical Engineering Congress and Exposition","start":{"date-parts":[[2006,11,5]]},"sponsor":["Heat Transfer Division"],"location":"Chicago, Illinois, USA","end":{"date-parts":[[2006,11,10]]},"acronym":"IMECE2006"},"container-title":["Heat Transfer, Volume 2"],"original-title":[],"link":[{"URL":"http:\/\/asmedigitalcollection.asme.org\/IMECE\/proceedings-pdf\/doi\/10.1115\/IMECE2006-14428\/4562339\/569_1.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/asmedigitalcollection.asme.org\/IMECE\/proceedings-pdf\/doi\/10.1115\/IMECE2006-14428\/4562339\/569_1.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,1,9]],"date-time":"2020-01-09T23:17:37Z","timestamp":1578611857000},"score":1,"resource":{"primary":{"URL":"https:\/\/asmedigitalcollection.asme.org\/IMECE\/proceedings\/IMECE2006\/47853\/569\/310107"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,1,1]]},"references-count":12,"URL":"https:\/\/doi.org\/10.1115\/imece2006-14428","relation":{},"subject":[],"published":{"date-parts":[[2006,1,1]]}}}