发明名称 |
MANGANESE-CONTAINING MOLTEN STEEL PRODUCTION METHOD, TEMPERATURE-HOLDING FURNACE AND MANGANESE-CONTAINING MOLTEN STEEL PRODUCTION EQUIPMENT USING TEMPERATURE-HOLDING FURNACE |
摘要 |
The present invention provides a manganese-containing molten steel production method comprising: a preparation step in which a molten ferroalloy or a molten non-ferrous metal is prepared by carrying out denitrification or nitrogen-absorption prevention during a procedure of retaining the molten ferroalloy or molten non-ferrous metal, in order to prevent later processing or additional denitrification due to nitrogen absorption; a maintaining step in which the molten ferroalloy or molten non-ferrous metal is maintained at a temperature at or above the melting point thereof; and a united pouring step in which the molten ferroalloy or molten non-ferrous metal is subjected to united pouring together with pre-prepared molten steel. In the present invention, while the maintaining step is being carried out, so too is a nitrogen-absorption prevention or denitrification step in which the molten ferroalloy or molten non-ferrous metal is subjected to nitrogen-absorption prevention or denitrification. |
申请公布号 |
WO2014168270(A1) |
申请公布日期 |
2014.10.16 |
申请号 |
WO2013KR03047 |
申请日期 |
2013.04.11 |
申请人 |
POSCO |
发明人 |
HAN, WOONG-HEE;YIM, CHANG-HEE;SONG, MIN-HO;KANG, SOO-CHANG;AHN, CHONG-TAE |
分类号 |
C22C22/00;C21C5/52;C21C7/00;C22C33/04 |
主分类号 |
C22C22/00 |
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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