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JPS6164811A Desulfurizing method of molten steel 失效
标题翻译：钢的脱硫方法
公开(公告)号：JPS6164811A
公开(公告)日：1986-04-03
申请号：JP18415484
申请日：1984-09-03
申请人： Nippon Kokan Kk
发明人： MIYAWAKI YOSHIHARU , HANMIYO MASAYUKI , SHIRATANI YUSUKE , MATSUDA YASUHIRO , KOMATSU YOSHIMI , KONDO TSUNEO , USUI TSUTOMU
IPC分类号： C21C7/00 , C21C7/064
CPC分类号： C21C7/064 , C21C7/0075
摘要： PURPOSE: To melt and manufacture a dead low steel sulfide at a low cost by removing a converter slag on a molten steel, and thereafter, adding a desulfurizing flux onto the molten steel, and arc-heating the molten steel.
CONSTITUTION: A molten steel is discharged to a ladle from a converter, the ladle is carried into a slag removing equipment, and a converter slag on the molten steel is removed. It is desirable that this slag removal is executed by a vacuum absorbing method. After the slag has been removed, a desulfurizing flux is thrown into the ladle, an electrode and a stirring gas leading-in lance are made to descend on the molten steel, a cover is put on the ladle, and the molten steel is put into an Ar gas atmosphere by leading in an inert gas of an Ar gas, etc. Also, an arc is formed at a prescribed arc gap between the electrode and the molten steel. As a result, the molten steel is heated, also the flux is slagged, and a slag layer which is optimum for desulfurization is formed on the molten steel. At the same time, when the molten steel is stirred weakly by leading in an Ar gas, the slag and the molten steel react effectively, and a dead low steel sulfide whose S density is ≤about 5ppm is obtained.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过除去钢水上的转炉渣，以低成本熔融生产死了的低硫化硫，然后在钢水上加入脱硫助熔剂，并对钢水进行电弧加热。构成：将钢水从转炉中排放到钢包中，将钢包放入除渣设备中，并将钢水上的转炉渣除去。希望通过真空吸收法来除渣。炉渣除去后，将钢液中的脱硫助熔剂投入钢包中，使电极和搅拌气体引入喷枪在钢水下降，将钢板放在钢包上，将钢水放入通过引入Ar气体的惰性气体的Ar气体气氛等。另外，在电极和钢水之间的规定的电弧间隙形成电弧。结果，钢水被加热，助熔剂被除渣，在钢水上形成最适合脱硫的渣层。同时，当通过引入Ar气体使钢水发生弱烈搅拌时，炉渣和钢水有效地反应，得到S密度小于5ppm的死钢硫化物。

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