Author/Authors :
Arefpour، A. R. نويسنده Advanced Materials Research Center, Faculty of Materials Engineering,Islamic Azad
University, Najafabad Branch,Najafabad,Iran , , Shafierad، A. نويسنده Advanced Materials Research Center, Faculty of Materials Engineering,Islamic Azad
University, Najafabad Branch,Najafabad,Iran , , Monshi، A. نويسنده Advanced Materials Research Center, Faculty of Materials Engineering,Islamic Azad University, Najafabad Branch,Najafabad,Iran , , Saidi، A. نويسنده Advanced Materials Research Center, Faculty of Materials Engineering,Islamic Azad University, Najafabad Branch,Najafabad,Iran , , Monshi، M. نويسنده Advanced Materials Research Center, Faculty of Materials Engineering,Islamic Azad
University, Najafabad Branch,Najafabad,Iran ,
Abstract :
The aim of conducting this research was to evaluate the viscosity change in the continuous casting of steel mold powders by altering their chemical compositions, using hot stage microscope analysis. 4 low-fluorine samples containing such compositions as MnO, Fe2O3, Li2O, TiO2 and ZnO, as well as another fluorine-free sample containing a combination of Fe2O3 and TiO2, were prepared in this research. The viscosity of the reference powder (the mold powder applied in high-speed continuous casting in steel industry), as well as the viscosity of the above-mentioned samples, was evaluated using hot stage microscope analysis. The results of hot stage microscope analysis revealed that the viscosity of the reference powder was similar to that of low-fluorine and fluorine-free samples. Finally, a fluorine-free sample containing a combination of Fe2O3 and TiO2 was introduced as an optimized composition which could be a substitute for the currently-used mold powder applied in the continuous casting of steel with high speed, considering its similar viscosity to be that of the reference powder
