发明名称 |
METHOD FOR DENITRIDING MOLTEN STEEL DURING ITS PRODUCTION |
摘要 |
<p>The invention concerns a method which consists in injecting into a molten metal bath to be treated, jointly but separately into the same bath zone, oxygen and carbon in a form capable of being blown (powder carbon preferably) so as to generate locally in the bath Co bubbles from those two elements, which will then be loaded in denitriding nitrogen. A stoichiometric adjustment of the carbon and oxygen inputs enable a constant carbon denitriding in the bath. The method is preferably applicable to the production of low-carbon steel grades, in particular in an electric oven.</p> |
申请公布号 |
SI20533(A) |
申请公布日期 |
2001.10.31 |
申请号 |
SI19990020093 |
申请日期 |
1999.12.17 |
申请人 |
USINOR, SOCIETE ANONYME DE DROIT FRANCAIS, |
发明人 |
MAILHAN JEAN-CHRISOPHE;PERNET DANIEL |
分类号 |
C21C5/52;C21C7/00;C21C7/04;C21C7/072;(IPC1-7):C21C7/04;C22B9/05;C22B9/10 |
主分类号 |
C21C5/52 |
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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