The present invention relates to a method for increasing crude steel production; The purpose is to provide a way to increase converter melt volume by changing converter operations.;The present invention for achieving the above object in the steelmaking manufacturing method including a converter blow-refining process for blowing oxygen through the lance, the hot iron brakit instead of iron ore at the time when the current blow is 20-60% from the beginning The technical gist of the method of increasing crude steel production to be introduced is as follows.
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