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Simulation of Heating Cycles for Large Steel Ingots

Published online by Cambridge University Press:  01 March 2016

L.F. Romano Acosta
Affiliation:
Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, San Nicolás de los Garza, Nuevo León, C.P. 66450, México.
O. Zapata
Affiliation:
Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, San Nicolás de los Garza, Nuevo León, C.P. 66450, México.
I. Álvarez
Affiliation:
Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, San Nicolás de los Garza, Nuevo León, C.P. 66450, México.
R. Cerda
Affiliation:
Frisa S.A. de C.V. Santa Catarina, Nuevo León, C.P. 66150, México.
L. Leduc Lezama
Affiliation:
Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Nuevo León, Pedro de Alba s/n, San Nicolás de los Garza, Nuevo León, C.P. 66450, México.
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Abstract

A simulation model is presented, where temperature, phases and internal stresses can be predicted as a function of time during the heating of large steel ingots for forging. Heating cycle measurements and computer simulations are compared for an A105 steel grade 34-Ton tapered ingot. A study of the heat transfer inside a natural gas-fired furnace was carried out to make an estimation of internal stresses due to thermal expansion and phase transformation from α ferrite and pearlite to γ austenite during heating. The model was validated with a second test of an AISI 4330 steel grade 35.4-Ton ingot. The simulation model described can calculate internal stresses in any ingot in order to optimize its heating cycle without compromising ingot internal quality, reducing energy consumption and increasing productivity of the furnace.

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Articles
Copyright
Copyright © Materials Research Society 2016 

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References

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