Abstract

We have developed Vacuum Electroslag Remelting process (VSR) by ourselves. This process is ESR process under vacuum or low pressure. This process has many strong points as compared with VAR and ESR process. Especially on this process, it is possible to attain ultra low oxygen content by controlling the interaction of air and molten slag.Using this process, we have succeeded in producing the stainless steel ingot, oxygen content of which was less than 10ppm and inclusion number of which was very low.

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