发明名称 |
CONVERTER STEELMAKING PROCESS |
摘要 |
An improved converter steelmaking process that achieves a great increase in the refining capability of top-blown oxygen is provided. The process applies to an oxygen top-blowing converter that also permits bottom blowing of gas and it is characterized by supplying oxygen from a top-blowing lance and a bottom-blowing nozzle substantially throughout the refining operation, with 2 vol. % to less than 17 vol. % of a predetermined total oxygen flow rate being supplied from the bottom-blowing nozzle whereas the remaining part of oxygen is blown onto the surface of the hot metal from the top-blowing lance. |
申请公布号 |
DE3071674(D1) |
申请公布日期 |
1986.09.04 |
申请号 |
DE19803071674 |
申请日期 |
1980.04.15 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
HIRAI, MASAZUMI;OKOHIRA, KAZUO;MURAKAMI, SHOZO;NAKAGAWA, HAJIME |
分类号 |
C21C5/35;(IPC1-7):C21C5/28 |
主分类号 |
C21C5/35 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|