发明名称 |
METHOD OF STEEL MELTING IN CONVERTER |
摘要 |
<p>oxygen-converter production of steel. SUBSTANCE: method includes charging of metal scrap into converter; heating of metal scrap and pouring of liquid iron; addition of manganese-containing material in two portions with slag-forming and carbon-containing materials; blowing of melt with oxygen with variation of its flow rate during heat. The first portion of manganese-containing material in amount of 45-80% of their total consumption is simultaneously added with slag-forming and carbon-containing materials in ratio of 1: (1.8-5.2): (0.02-0.6), respectively; heating with supplying of oxygen in amount of 35-45% of basic one and carbon-containing materials in amount of 65-95% of their total consumption for 15-45% of total duration of blowing. The second portion of manganese-containing materials is added by their distribution concurrently with slag-forming materials in ratio of 1: (0.1-1.0), respectively, after pouring of iron during blowing and consumption from 20-40 to 45-85% of total amount of oxygen for heat. EFFECT: increased residual content of manganese in metal before tapping and reduced consumption of manganese-containing ferroalloys for steel production. 1 ex</p> |
申请公布号 |
RU2177508(C1) |
申请公布日期 |
2001.12.27 |
申请号 |
RU20000128004 |
申请日期 |
2000.11.09 |
申请人 |
OAO "ZAPADNO-SIBIRSKIJ METALLURGICHESKIJ KOMBINAT";SIBIRSKIJ GOSUDARSTVENNYJ INDUSTRIAL'NYJ UNIVERSITET |
发明人 |
AJZATULOV R.S.;PROTOPOPOV E.V.;SOKOLOV V.V.;KOMSHUKOV V.P.;SHAKIROV K.M.;BUJMOV V.A.;SHCHEGLOV M.A.;ERMOLAEV A.I.;MASHINSKIJ V.M.;AMELIN A.V.;LIPEN' V.V.;SHISHKIN V.G.;GANZER L.A. |
分类号 |
C21C5/28 |
主分类号 |
C21C5/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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