Effect of solidification of mold fluxes on the heat transfer in casting mold

Jung Wook Cho; Hiroyuki Shibata

doi:10.1016/S0022-3093(01)00333-7

Effect of solidification of mold fluxes on the heat transfer in casting mold

Jung Wook Cho, Hiroyuki Shibata

Division of Process and System Engineering

Research output: Contribution to journal › Conference article › peer-review

56 Citations (Scopus)

Abstract

Crystallization of molten mold flux film has been observed using a confocal scanning laser microscope (CSLM) with an infrared furnace. The observation has indicated that mold flux of larger basicity (CaO/SiO₂ = 1.41) starts crystallizing directly in liquid phase at temperatures >1373 K, and shows a faster growth rate of crystalline than that of smaller basicity (CaO/SiO₂ = 0.96). Cross-section of solidified fluxes shows that the shrinkage due to the crystallization is more for larger basicity flux than for smaller one. This difference implies that thermal resistance at mold/mold flux film interface arises from the solidification and crystallization of the flux film.

Original language	English
Pages (from-to)	110-117
Number of pages	8
Journal	Journal of Non-Crystalline Solids
Volume	282
Issue number	1
DOIs	https://doi.org/10.1016/S0022-3093(01)00333-7
Publication status	Published - 2001 Apr 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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abstract = "Crystallization of molten mold flux film has been observed using a confocal scanning laser microscope (CSLM) with an infrared furnace. The observation has indicated that mold flux of larger basicity (CaO/SiO2 = 1.41) starts crystallizing directly in liquid phase at temperatures >1373 K, and shows a faster growth rate of crystalline than that of smaller basicity (CaO/SiO2 = 0.96). Cross-section of solidified fluxes shows that the shrinkage due to the crystallization is more for larger basicity flux than for smaller one. This difference implies that thermal resistance at mold/mold flux film interface arises from the solidification and crystallization of the flux film.",

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AU - Cho, Jung Wook

AU - Shibata, Hiroyuki

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N2 - Crystallization of molten mold flux film has been observed using a confocal scanning laser microscope (CSLM) with an infrared furnace. The observation has indicated that mold flux of larger basicity (CaO/SiO2 = 1.41) starts crystallizing directly in liquid phase at temperatures >1373 K, and shows a faster growth rate of crystalline than that of smaller basicity (CaO/SiO2 = 0.96). Cross-section of solidified fluxes shows that the shrinkage due to the crystallization is more for larger basicity flux than for smaller one. This difference implies that thermal resistance at mold/mold flux film interface arises from the solidification and crystallization of the flux film.

AB - Crystallization of molten mold flux film has been observed using a confocal scanning laser microscope (CSLM) with an infrared furnace. The observation has indicated that mold flux of larger basicity (CaO/SiO2 = 1.41) starts crystallizing directly in liquid phase at temperatures >1373 K, and shows a faster growth rate of crystalline than that of smaller basicity (CaO/SiO2 = 0.96). Cross-section of solidified fluxes shows that the shrinkage due to the crystallization is more for larger basicity flux than for smaller one. This difference implies that thermal resistance at mold/mold flux film interface arises from the solidification and crystallization of the flux film.

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