Time-varying heat transfer coefficients between tube-shaped casting and metal mold

1997 ◽  
Vol 40 (15) ◽  
pp. 3513-3525 ◽  
Author(s):  
Tae-Gyu Kim ◽  
Zin-Hyoung Lee
Keyword(s):  
Heat Transfer ◽  
Time Varying ◽  
Metal Mold ◽  
Transfer Coefficients ◽  
Heat Transfer Coefficients

scholarly journals Heat flow and heat transfer coefficient during crystallization under the pressure

2018 ◽  
Vol 157 ◽  
pp. 02036
Author(s):  
Richard Pastirčák ◽  
Ján Ščury ◽  
Tomáš Fecura
Keyword(s):  
Heat Transfer ◽  
Heat Flow ◽  
Solidification Process ◽  
Metal Mold ◽  
Transfer Coefficients ◽  
Microstructure Modeling ◽  
Heat Transfer Coefficients ◽  
Flow And Heat Transfer ◽  
Solidification Processes ◽  
Precise Prediction

Estimation of the heat flow at the metal-mold interface is necessary for accurate simulation of the solidification processes. For the numerical simulation, a precise prediction of boundary conditions is required to determine the temperature distribution during solidification, porosity nucleation, microstructure development, and residual stresses. Determination of the heat transfer coefficients at the metal-mold interface is a critical aspect for simulation of the solidification process and the microstructure modeling of the castings. For crystallization under the pressure and for thin-walled castings, HTC evaluation is important due to the very limited freezing time.

Metal–mold heat transfer coefficients during horizontal and vertical Unsteady-State solidification of Al–Cu and Sn–Pb Alloys

2004 ◽  
Vol 12 (3) ◽  
pp. 279-296 ◽  
Author(s):  
Carlos A. Santos ◽  
Cláudio A. Siqueira ◽  
Amauri Garcia ◽  
José M.V. Quaresma ◽  
Jaime A. Spim
Keyword(s):  
Heat Transfer ◽  
Unsteady State ◽  
Metal Mold ◽  
Transfer Coefficients ◽  
Heat Transfer Coefficients

scholarly journals A FERRITE POTENTIAL INFLUENCE ON HEAT TRANSFER CONDITIONS IN INDUSTRIAL MOLD DURING THE CONTINUOUS CASTING OF STEELS

2009 ◽  
Vol 8 (1) ◽  
pp. 18
Author(s):  
V. Karlinski ◽  
W. Fogazzi ◽  
B. V. De Souza ◽  
C. R. F. Ferreira ◽  
C. A. Dos Santos ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Processing System ◽  
Carbon Steels ◽  
Structure Characterization ◽  
Metal Mold ◽  
Transfer Coefficients ◽  
Metallographic Examination ◽  
Heat Transfer Coefficients ◽  
Numerical Predictions

This paper aims to apply a solidification mathematical model to the process of the continuous casting of steel. Heat transfer coefficients in the mold were determined by the inverse method and they are related with both macrostructure conditions and carbon equivalents of carbon steels from peritectic reactions. Both structure characterization and ferrite potential were established by solidification parameters and chemical composition after casting. Samples were cut at different positions of the metal/mold interface, whereas the selected sections were polished and etched with a reagent for the metallographic examination. The image processing system was used to analyze as-cast structure for every selected position. It was observed that during casting, numerical predictions about metal/mold heat transfer coefficients along the mold are in accordance with type-A and B steels ferrite potential, due to both its sticking and depression tendency.

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