pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (32권3호 144-149)
Evaluation on the Applicability of Refractory Coatings to Metal Mold for Cast Iron
주철금형주조용 도형재의 적용성 평가
Kum-Hee Seo, Ki-Young Kim, Byung-Moon Moon*
Korea University of Technology and Education, *Liquid Processing & Casting Technology R/D Group
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 1,000oC was in the range of 14.5~75.8oC/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.
Refractory mold coating, Cast iron, Wear, Spalling.
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