• Title/Summary/Keyword: Metal Foundry

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Fabrication Development of Stainless Steel - cast Iron Dual Tube (스테인리스강-주철 이중복합관의 제조개발에 관한 연구)

  • Choi, Sang-Ho;Kang, Choon-Sik
    • Journal of Korea Foundry Society
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    • v.8 no.4
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    • pp.429-436
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    • 1988

  • The influences of some casting conditions on bonding ratio and state at bonding zone of stainless steel-cast iron dual tube produced by centrifugal casting process were investigated to estimate fabrication technics. 1) Bonding ratio is increasing such as increasing of inner surface temperature of outer metal(stainless steel STS 304), if pouring temperature of inner metal (cast iron) is constant. 2) The more pouring temperature of inner metal (cast iron) increase, the more bonding ratio increase when inner surface temperature of outer metal (cast iron) is constant. 3) As the mold rotary speed is increase, the hatching area of bonding map (perfect bonding area) goes down to the low pouring temperature of inner metal. 4) In order to predict bonding state of two different metal, we are able to make and use the bonding map about casting conditions such as inner surface temperature of outer metal, pouring temperature of inner metal and mold rotary speed.

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Numerical and Experimental Studies on Thermal Strain Analysis of Al Alloy Casting Mold using Metal Foundry (금형주조기를 이용한 알루미늄 합금 금형의 수치해석적 열변형 해석과 실험에 관한 연구)

  • Oh, Yool-Kwon;Kim, Yong-Bum;Yoon, Hee-Sung
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.2050-2054
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    • 2007

  • This study numerically and experimentally investigated on thermal strain analysis of aluminum alloy casting mold using metal foundry. To predict the numerical result of thermal strain in Al alloy casting mold during the cooling process, it is performed the investigation of temperature distribution, stress and displacement based on the physical properties of Al alloy. In results of this study, Al alloy casting mold represented rapidly cooling graph during initial 20minutes after beginning cooling process, therefore value of stress and displacement is rapidly changed during initial 20minutes after beginning cooling process. In addition to, temperature distribution obtained by experiment confirmed corresponding pattern then compared numerical analysis with experiment. These results are distribute to make the effective and the high precision casting mold.

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