发明名称 |
METHOD FOR PREVENTING SLAG FROM BEING POWDERED IN REFINING STAINLESS STEEL |
摘要 |
PURPOSE: A method for preventing slag from being powdered in refining stainless steel is provided to originally prevent slag generated during refining stainless steel from being powdered by changing a composition so as to suppress powder generation due to volume expansion of slag when refining stainless steel. CONSTITUTION: In refining stainless steel, a molten steel and slag are tapped into a ladle after the molten steel is carburized in a refining furnace, and then silicon is put into it so as to deoxidize the molten steel and reduce the slag. A slag contains 10% or more of a concentration of alumina, thereby having a main constituent of CaO-SiO2-Al2O3-(MgO) while an Al dross is put into a molten steel so that a concentration of Al in the molten steel is 1000 ppm or less.
|
申请公布号 |
KR20010010119(A) |
申请公布日期 |
2001.02.05 |
申请号 |
KR19990028827 |
申请日期 |
1999.07.16 |
申请人 |
POHANG IRON & STEEL CO., LTD. |
发明人 |
SONG, HYO SEOK |
分类号 |
C21C7/00;(IPC1-7):C21C7/00 |
主分类号 |
C21C7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|