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Información tecnológica

versão On-line ISSN 0718-0764

Resumo

CORAZZA, Emerson J; SACCHELLI, Carlos M  e  MARANGONI, Cintia. Cycle Time Reduction of Thermoplastic Injection using Nitriding Treatment Surface Molds. Inf. tecnol. [online]. 2012, vol.23, n.3, pp. 51-58. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642012000300007.

A study on the heat transfer in a mold, comparing experimental injection tests using a mold with and without surface treatment (nitriding) is presented. Process simulations were carried out using Computer Aided Engineering tools (CAE) for the estimation of the initial parameters to be applied in the tests in instrumented P20 steel injection molds with the polymer crystal polystyrene. Results indicated a reduction of cooling time and of the time of the process in the mold with treatment, due to an increase of the thermal conductivity.

Palavras-chave : injection; mold; cycle time; cooling; surface treatment.

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