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Filler metal을 이용한 Stainless steel필터의 제조 및 통기도

Fabrication and Permeability of Stainless Steel Filter by using Filler Metal

  • 배승열 (경상대학교 재료공학부 및 공학연구원) ;
  • 안인섭 (경상대학교 재료공학부 및 공학연구) ;
  • 성택경 (경상대학교 재료공학부 및 공학연구) ;
  • 최주호 (경상대학교 응용화학공학부)
  • 발행 : 2004.08.01

초록

The application concept of using a fail safety filter on the filtering system is to prevent the particle leakage when the main filter element is broken at high temperature. In this study, the metal filters were fabricated by pressureless sintering method. The mixture of stainless steel powders and filler metal binder solved in the water solutions of 5% PVA was compacted to form the cylindrical filter without pressure. The compacted filter were sintered in the vacuum sintering furnace at 120$0^{\circ}C$ for 1 hour. The metal filter(produced with powder of 640-840 ${\mu}m$ size) having more than above 50% porosity, 500${\mu}m$ pore size, and permeability of 7.3${\times}$10$^{-11}$m$^{2}$ plugged within 2.5 minute to prevent the leakage of maximum slip particle size of less than 3${\mu}m$.

키워드

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