1957 Volume 43 Issue 10 Pages 1098-1104
The non-metallic inclusion in steel is greatly influenced with oxidation of molten steel by air during pit-practice. The authors studied on oxidation of various elements in molten steel during pouring and effect of casting conditions on oxidation.
The results obtained were as follows:
1. Silicon, manganese, aluminium and chrome were oxidized in proportion to content of these elements before pouring.
2. Increased SiO2 and MnO in steel during pouring were about 3-% and 7-15% of total amount of oxidized silicon and manganese respectively.
3. Increased Al2O3 was about 25% of total amount of oxidized aluminium and it was correspond with about 50% of total Al2O3 in steel after pouring.
4. Oxidation of chrome was not oxidized strongly in comparison with the other elements, but increased Cr2O3 during pouring was correspond with about 50-100% of total Cr2O3 in steel after pouring.
5. The molten steel of slow casting velocity was more oxidized heavily than the case of fast casting velocity.
The oxidation of molton steel by air during pouring was influenced with the condition of its stream.
