Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Evaluation on the Applicability of Refractory Coatings to Metal Mold for Cast Iron

주철금형주조용 도형재의 적용성 평가

  • Seo, Kum-Hee (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Kim, Ki-Young (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Moon, Byung-Moon (Liquid Processing & Casting Technology R/D Group, Korea Institute of Industrial Technology)
  • 서금희 (한국기술교육대학교 에너지.신소재.화학공학부) ;
  • 김기영 (한국기술교육대학교 에너지.신소재.화학공학부) ;
  • 문병문 (한국생산기술연구원 주조공정연구그룹)
  • Received : 2012.03.23
  • Accepted : 2012.06.22
  • Published : 2012.06.30
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Abstract

A series of refractory mold coatings were applied to cast iron specimens, and their resistances to wear and spalling were investigated. Tests were carried out with own made measures, and also a calculation was tried for the comparison of a part of results like spalling. Worn width by scrubbing the indenter on the coating layer increased significantly at high temperature. Temperature increasing rate across the specimen when the coating side was exposed to $1000^{\circ}C$ was in the range of $14.5{\sim}75.8^{\circ}C$/sec mm, and specimens with thicker coating layer showed lower temperature increase. Severe spalling of coated layer was observed after heating the specimen, and it was able to confirm by calculation using a commercial code.

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References

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