대한치과기공학회지 (Journal of Technologic Dentistry)

  • 제34권4호
  • /
  • Pages.361-368
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  • 2012
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  • 1229-3954(pISSN)
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  • 2288-5218(eISSN)
대한치과기공학회 (Korean Academy of Dental Technology)
권호 표지
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원심 주조한 니켈-크롬 합금의 성량 변화 및 주조 온도에 따른 산화물 측정

Composition of nickel-chromium alloy on the centrifugal casting and the influence of quantitative of oxides on the casting temperature

  • 김원수 (대전보건대학교 치기공학과)
  • Kim, Won-Soo (Department of Dental Laboratory Technology, Daejeon Health College)
  • 투고 : 2012.09.04
  • 심사 : 2012.12.24
  • 발행 : 2012.12.30
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초록

Purpose: The aim of this study was to analysis the composition on the centrifugal casting and the oxide on the casting temperature. Methods: The nickel based alloy were used in this study. Wax pattern specimens (10*10*2) were invested with phosphate-bonded investment in metal rings, the liquid/powder ratio and overall burn-out schedules for these investments were followed in accordance with the manufacturer's instructions. After casting, the alloy specimens were evaluated as regards composition(EPMA). The casting temperatures were as follows: $1400^{\circ}C$ and $1700^{\circ}C$. The quantitative analysis of oxides were scanning electron microscope(SEM), energy dispersive spectroscopy(EDS) and line scanning. Results: Nearer the injection lines showed that there is a large amount of nickel. Quantitative of oxides of Ni-Cr alloy cast from $1400^{\circ}C$ is lager than Ni-Cr alloy cast from $1700^{\circ}C$. Conclusion: Casting when using a centrifugal casting machine centrifugal force affects the composition of the alloy. The higher the temperature, the amount of oxide that is generated many.

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참고문헌

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