Rapid Tooling of Porous Ceramic Mold Using Slip Casting

슬립 캐스팅을 이용한 통기성 세라믹형의 쾌속 제작

  • 정성일 (부산대학교 대학원 정밀기계공학과) ;
  • 정두수 (한국신발, 피혁연구소) ;
  • 임용관 (부산대학교 대학원 정밀기계공학과) ;
  • 정해도 (부산대학교 기계공학부) ;
  • 조규갑 (부산대학교 산업공학과)
  • Published : 1999.05.01

Abstract

The application field of porous mold is more and more expended. A mixture of alumina and cast iron is used for making porous mold using slip and vacuum casting method in this study. Slip casting is a process that slurry is poured into silicon rubber mold, dried in vacuum oven, debinded and sintered in furnace, In this procedure, slurry is composed of powder, binder, dispersion agent, and water. Vacuum casting is a technique for removing air bubbles existed in the slurry under vacuum condition. Since ceramics has a tendency of over-shrinkage after sintering, cast iron is used to compensate dimensional change. The results shows that sintering temperature has a great effect on characteristics of alumina-cast iron composite sintered parts. Finally ceramic-metal composite sintered mold can be used for aluminum alloy casting of shoe mold using this process.