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1. 发明授权

US5429655A System for removing non-metallic foreign matter in molten metal 失效
标题翻译：用于去除熔融金属中非金属异物的系统
公开(公告)号：US5429655A
公开(公告)日：1995-07-04
申请号：US952891
申请日：1992-11-20
申请人： Shigeru Ogura , Masayuki Onishi , Hidenari Kitaoka , Mitsuru Sakurai , Toshikazu Sakuraya , Yozo Tanino , Tsukasa Terashima , Yoshiro Tomiyama , Yuki Nabeshima , Yuji Miki , Saburo Moriwaki , Noboru Yasukawa
发明人： Shigeru Ogura , Masayuki Onishi , Hidenari Kitaoka , Mitsuru Sakurai , Toshikazu Sakuraya , Yozo Tanino , Tsukasa Terashima , Yoshiro Tomiyama , Yuki Nabeshima , Yuji Miki , Saburo Moriwaki , Noboru Yasukawa
IPC分类号： B22D11/10 , B22D11/11 , B22D11/114 , B22D41/005
CPC分类号： B22D11/114 , B22D11/11
摘要： An apparatus for removing non-metallic foreign matter in a molten steel includes a tundish and a coil device. The tundish is an intermediate container receiving the molten steel from a ladle and feeding a purified molten steel by removing the non-metallic foreign matter in the molten steel. For removing the non-metallic foreign matter, the tundish has a swirl flow bath and a floatation bath. In the circumference of the swirl flow bath of the tundish, a coil device is arranged for flowing the molten steel in the swirl flow bath in swirl fashion. The tundish and the coil device are formed separately and constructed for relative movement to each other. The molten steel in the swirl flow bath of the tundish is flown in swirl fashion in the horizontal direction by a magnetic field generated by the coil device. At this time, the molten steel forms a parabolic concaved surface. The non-metallic foreign matter in the molten steel is forcedly floated up on the parabolic surface portion of the molten steel, which is removed by an appropriate means. The molten steel thus purified flows into the floatation bath from the swirl flow bath. With the static flow in the floatation bath, the residual non-metallic foreign matter floats up. The purified molten steel is poured into the mold through the bottom of the floatation bath.
摘要翻译： PCT No.PCT / JP92 / 00388 Sec。 371日期：1992年11月20日 102（e）日期1992年11月20日PCT提交1992年3月27日PCT公布。出版物WO92 / 17295 日期：1992年10月15日。用于除去钢水中的非金属异物的设备包括中间包和线圈装置。中间包是从钢包中接收钢水的中间包，并且通过去除钢水中的非金属异物来送入精炼的钢水。为了去除非金属异物，中间包具有旋流池和漂浮浴。在中间包的涡流槽的圆周上，设置有一个线圈装置，用于以漩涡的方式使旋转流槽中的钢水流动。中间包和线圈装置分别形成并相互相对移动构造。在中间包的涡流槽中的钢水由螺旋装置产生的磁场沿水平方向旋转地流动。此时，钢水形成抛物面凹面。钢水中的非金属杂质被强制地悬浮在钢水的抛物面上，通过适当的方式去除。这样净化的钢水从涡流浴流入浮选槽。随着浮选槽中的静态流动，剩余的非金属异物浮起。将纯化的钢水通过浮选槽的底部倒入模具中。

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