한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제53권5호
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  • Pages.541-547
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  • 2016
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
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Improving Strength in Casting Mold by Control of Starting Material and Process

  • Cho, Geun-Ho (School of Materials and Engineering, Changwon National University) ;
  • Kim, Eun-Hee (School of Materials and Engineering, Changwon National University) ;
  • Jung, Yeon-Gil (School of Materials and Engineering, Changwon National University)
  • 투고 : 2016.05.30
  • 심사 : 2016.07.22
  • 발행 : 2016.09.30
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초록

In developing high temperature molds with advantages of the sand and precision (investment) castings, mechanical properties of the mold were improved through homogeneous coating of starting powders with an inorganic binder and improvement of fabrication process. Beads with mullite composition were employed for properties of the mold under high temperature, which was compared with artificial sands. Precursors of silica and sodium oxide were used as starting materials for an inorganic binder to achieve homogeneous coating on the starting powders. Strength was enhanced by the glass phase converted from the inorganic binder through heat treatment process. Also, two kinds of process, wet and dry processes, were incorporated to prepare mold specimens. Consequently, fabrication process of the mold with superior strength and high temperature applicability, compared with the previous molds for sand casting, could be suggested through control of the starting material and enhancement of the vitrification efficiency.

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참고문헌

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피인용 문헌

  1. Effect of P/Al Molar Ratio and Curing Conditions of CBAPC Binder on Flexural Strength and Moisture Resistance of Artificial Sand Core vol.57, pp.12, 2016, https://doi.org/10.3365/kjmm.2019.57.12.808