CALCULATION OF TEMPORAL AND RESIDUAL VOLTAGE DURING THE ELECTROHARDENING OF FORMING ROLLS
https://doi.org/10.17073/0368-0797-2014-11-15-22
Abstract
The article presents the physicomathematical model of thermo-stressed state of steel forming rolls, hardened after the induction electric heating. The model is implemented by numerical calculation of number of interrelated nonlinear heat conduction and thermoviscoelastivity equations taking into account the kinetics of phase transformation of austenite and specific character of forming rolls induction heating. The comparison of calculated values of voltage in the forming roll with 210 mm in diameter with the test data obtained by Sacha method confirms the adequacy of the mathematical model.
About the Author
Yu. A. Samoilovich
OJSC “Research Institute of Metallurgical Heat Engineering” (“VNIIMT”) (16, Studencheskaya str., Ekaterinburg, 620219, Russia)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Chief Re-searcher of Laboratory of heating furnaces
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Review
For citations:
Samoilovich Yu.A. CALCULATION OF TEMPORAL AND RESIDUAL VOLTAGE DURING THE ELECTROHARDENING OF FORMING ROLLS. Izvestiya. Ferrous Metallurgy. 2014;57(11):15-22. (In Russ.) https://doi.org/10.17073/0368-0797-2014-11-15-22
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