The method of manufacturing steel

Pour the molten steel into the mold together with the mold powder, the molten steel within this mold is gradually solidified. Slab molded while being solidified in the mold is continuously removed from the mold. The slab taken out from the mold, for example, subjected to electrolytic abrasive grain area reduction using a cross sectional reduction head and the elastic grindstone and the electrode is arranged. Entrainment layer and flaws of the powder from the slab surface is removed by the electrolytic abrasive grain area reduction. The slab after the electrolytic abrasive grain area reduction, hot rolling, annealing, shot blasting / descaling, cold rolling, annealing, etc. pickling is performed appropriately, the steel is produced.