|
Vol.36, No.1, 130 ~ 138, 1998
|
| Title |
| Numerical Analysis of Heat Transfer and Solidification Phenomena in Continuous Casting for Cladding Process |
| 김창섭 , 조규섭 , 오규환 , 나형용 Chang Seob Kim , Gue Serb Cho , Kyu Hwan Oh , Hyung Yong Ra |
|
|
|
| Abstract |
| A numerical analysis of heat transfer and solidification phenomena in vertical-type continuous casting for cladding process(CCC process), which can produce a composite hot working roll of Fe-Cr-V-C and Fe-C alloy, was carried out. A commercial program, FLUENT, was used to analyze the heat transfer coefficients between molds, and then used to optimize the pouring temperature and casting speed on solidification phenimena. By increasing the heat transfer coefficient between molds, the size of mushy zone reduced and the starting position of solidification moved upward. Increase of the pouring temperature moved the starting position of solidification downward, while mushy zone remains constant. With increasing average casting speed, the size of mushy zone increased as well and the starting position of solidification moved downward. The decrease of ratio of the holding to withdrawal time decreased the temperature variation during casting. |
|
|
| Key Words |
|
|
 |
|
