Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Development of $Al_2O_3-SiC-C$ Refractory for Hot Metal Pretreatment

용선예비처리용 $Al_2O_3-SiC-C$계 내화물 개발

  • 김의호 (포항종합제철(주)기술연구소) ;
  • 이석한 (포항종합제철(주)기술연구소) ;
  • 이석향 (포항종합제철(주)기술연구소) ;
  • 서병길 (포항종합제철(주)기술연구소) ;
  • 박정민 (포항종합제철(주)기술연구소) ;
  • 이재옥 (포항종합제철(주)기술연구소)
  • Published : 1986.05.01

Abstract

As there is a growing trend to make high quality steel improving production efficiency and utilizing slag as resources the technologies of hot metal pretreatment have been progressed to meet these demands. Although mill scale $Na_2CO_3$ and CaO used as fluxes proved to be excellent agents then can severely corrode refractories such as chamotte and high alumina for torpedo or open ladle car. Thus it was considered necessary to develop new refractories which can endure suchy conditions. Desulfurization fluxes vastly used in POSCO are $CaCO_3$ and CaO Recent trials have been made by testing phenol resin bonded $Al_2O_3-SiC-C$ bricks in torpedo ladle car for hot metal pretreatment. The results showed that the life of this brick became about 1.2 times longer than that of foreign products. And the crushing strength M.O.R corrosion resistance and oxidation resistance were tested.

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References

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