Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Ignition resistance of CaO added Mg-3Al, Mg-6Al and Mg-9Al Eco-Mg alloys

CaO가 첨가된 Mg-3Al, Mg-6Al 및 Mg-9Al Eco-Mg 합금의 발화 저항성 평가

  • Lee, Jin-Kyu (Foundry Tech. Ctr., Korea Institute of Industrial Technology) ;
  • Kim, Shae-K. (Foundry Tech. Ctr., Korea Institute of Industrial Technology)
  • Received : 2010.12.30
  • Accepted : 2011.03.21
  • Published : 2011.04.30
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Abstract

Molten magnesium alloys and magnesium products are easily oxidized and burned when they are exposed to high temperature for manufacturing process and by accident. In order to solve these problems, CaO addition in magnesium alloys has been developed. The ignition resistance of CaO added Mg-3Al, Mg-6Al, and Mg-9Al Eco-Mg alloys were investigated in comparison with those of magnesium alloys without CaO. The ignition resistance was examined by three methods : DTA, furnace chip ignition test, and torch ignition test. DTA was carried out for obtaining quantitative ignition temperature data with respect to specimen geometry and test environment; the furnace ignition test for burr and chip ignition temperature data; and the torch test for ignition temperature data for manufactured products. The ignition resistance of magnesium alloys under all conditions greatly increased by CaO addition.

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References

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