| 摘要 |
FIELD: metallurgy.SUBSTANCE: in compliance with this method, hard slag-forming mix (HSFM), aluminium and ferromanganese are introduced to steel teeming ladle from the converter. Note here that during metal tapping into teeming ladle secondary aluminium ingots and carbon ferromanganese are used as deoxidisers. Note here that in case the ladle is filled for its/-/-volume 0.8?1.0 kg/t of secondary aluminium ingots are introduced. Note that the ladle is filled for its/-/-volume 1.5?3.5 kg/t of carbon ferromanganese are added. Note here that in case the ladle is filled for its/-/-volume 1.5?2.0 kg/t of secondary aluminium ingots and HSFM are introduced. Note also that during the metal tapping from converter, metal is blown with argon via ladle bottom plugs at intensity of 0.2?0.5 l/(t*min) for 5?8 min.EFFECT: better recovery of aluminium and ferroalloys, stabilised teeming, better steel quality. |
