Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/42659
Título: Global efficiency of innovative rotational mold directly heated by thermal fluid
Autores/as: Monzo̊n, Mario D. 
Bordo̊n, Pablo 
Benítez, Antonio N. 
Kearns, Mark
Hernández Castellano, Pedro Manuel 
Marrero Alemán, María Dolores 
Clasificación UNESCO: 220504 Mecánica de fluidos
331210 Plásticos
Palabras clave: Polimeros
Fecha de publicación: 2012
Editor/a: 0032-3888
Publicación seriada: Polymer Engineering and Science 
Resumen: The article is focused on analysis of global efficiency of new mold for rotational molding of plastic parts, being directly heated by thermal fluid. The overall efficiency is based on several items such as reduction of cycle time, better uniformity of heating–cooling and low energy consumption. The new tool takes advantage of additive fabrication and electroforming for making the optimal manifold and cavity shell of the mold. Experimental test of a prototype mold was carried out on an experimental rotational molding machine, developed for this purpose, measuring wall temperature, and internal air temperature, with and without plastic material inside. Results were compared with conventional mold heated into an oven and to theoretical simulations done by Computational Fluid Dynamic software (CFD). The analysis represents considerable improvement of cycle time related to conventional methods (heated by oven) and better thermal uniformity to conventional procedures by direct heating of oil with external channels. In addition to thermal analysis an energetic efficiency study was done.
URI: http://hdl.handle.net/10553/42659
ISSN: 0032-3888
DOI: 10.1002/pen.23139
Fuente: Polymer Engineering and Science[ISSN 0032-3888],v. 52, p. 1998-2005
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