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Influential factors on the outer lens color in an industrial injection molding process

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Abstract

The quality and the aspect of outer lens fabricated by an injection molding process are an essential part for the optical properties of vehicular lighting system. This work is accurately addressed to identify the influential factors on the red color of the outer lens made of blends of polycarbonate and acrylonitrile butadiene styrene, which are mixed with a red masterbatch. Seven factors were investigated in this work: masterbatch concentration, mold and nozzle temperatures, holding and packing pressures, and holding and packing times. The main influential factors were found through a design of experiments in a linear approximation. The outer lens's red color is mainly influenced by the masterbatch concentration, the nozzle temperature, holding time, and the holding pressure, in a decreasing order. In contrast, the mold temperature, packing pressure, and packing time are not statically significant in the color appearance.

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Authors and Affiliations

  1. Instituto de Física, Universidad Autónoma de San Luis Potosí, Alvaro Obregón #64, 78000, San Luis Potosí, Mexico

    Octavio Meza & Elías Pérez

  2. Doctorado Institucional en Ingeniería y Ciencia de Materiales, Universidad Autónoma de San Luis Potosí, Manuel Nava #6, 78290, San Luis Potosí, Mexico

    Etzail Vega

  3. Hella, Electro-Óptica S.A. de C.V. Cumbres de Acultzingo No. 202, Los Pirules, Tlalnepantla, Edo. De México, 54040, Mexico

    Etzail Vega

Authors
  1. Octavio Meza
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  2. Etzail Vega
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  3. Elías Pérez
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Correspondence to Octavio Meza.

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Meza, O., Vega, E. & Pérez, E. Influential factors on the outer lens color in an industrial injection molding process. Int J Adv Manuf Technol 66, 455–460 (2013). https://doi.org/10.1007/s00170-012-4340-8

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  • DOI: https://doi.org/10.1007/s00170-012-4340-8

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