STUDIES ON THE INGOT MAKING PROCESS IN NITROGEN ATMOSPHERE (I)

Abstract

This paper compares results of the nitrogen blowing process with the ordinary and floating boards process for prevention of molten steel from oxidation in pouring process. Results obtained are summarized as follows:
1) Floating boards are not much effective.
2) Nitrogen is effective.
3) Oxidation of molten steel in ingot molds cannot be neglected from consideration of scum formation in ingot molds.