公开(公告)号：US07493936B2

公开(公告)日：2009-02-24

申请号：US11548114

申请日：2006-10-10

申请人： Hitoshi Nakata ,  Ko Kobayashi ,  Kazuki Sumida

发明人： Hitoshi Nakata ,  Ko Kobayashi ,  Kazuki Sumida

IPC分类号： B22D11/07 ,  B22D11/108

CPC分类号： B22D11/111 ,  B22D11/168 ,  B22D41/50

摘要： A first inclined surface and a second inclined surface are provided on the inside of a mold to constitute a so-called two-step tapered mold. A mold powder is adjusted to have a total content of CaO component and SiO2 component of not less than 50 wt %, and a content of F component of not more than 11 wt %. The inclination rates of the first and second inclined surfaces are set according to the basicity or solidification temperature of the powder to be used. The pore area of molten steel discharge ports of a dipping nozzle is set to not less than 2500 mm2 to less than 6400 m2. The discharge angle of the molten steel discharge ports is set, based on the horizontal, obliquely downward to not less than 10° to not more than 35°. According to such a continuous casting method, solidification delay at angle parts of a bloom can be suppressed.

摘要翻译： 第一倾斜表面和第二倾斜表面设置在模具的内部，以构成所谓的两步锥形模具。 将成型粉末调整为CaO成分和SiO 2成分的总含量为50重量％以上，F成分含量为11重量％以下。 第一倾斜面和第二倾斜面的倾斜率根据所使用的粉末的碱度或凝固温度来设定。 浸渍喷嘴的钢水排出口的孔面积设定为2500mm 2以上，小于6400m 2。 钢水排出口的排出角度以水平方式倾斜向下设定为10°以上且35°以下。 根据这样的连续铸造方法，能够抑制花纹的角部的凝固延迟。

公开(公告)号：US20070125513A1

公开(公告)日：2007-06-07

申请号：US11548114

申请日：2006-10-10

申请人： Hitoshi Nakata ,  Ko Kobayashi ,  Kazuki Sumida

发明人： Hitoshi Nakata ,  Ko Kobayashi ,  Kazuki Sumida

IPC分类号： B22D11/00 ,  B22D11/07

CPC分类号： B22D11/111 ,  B22D11/168 ,  B22D41/50

摘要： A first inclined surface and a second inclined surface are provided on the inside of a mold to constitute a so-called two-step tapered mold. A mold powder is adjusted to have a total content of CaO component and SiO2 component of not less than 50 wt %, and a content of F component of not more than 11 wt %. The inclination rates of the first and second inclined surfaces are set according to the basicity or solidification temperature of the powder to be used. The pore area of molten steel discharge ports of a dipping nozzle is set to not less than 2500 mm2 to less than 6400 m2. The discharge angle of the molten steel discharge ports is set, based on the horizontal, obliquely downward to not less than 10° to not more than 35°. According to such a continuous casting method, solidification delay at angle parts of a bloom can be suppressed.

摘要翻译： 第一倾斜表面和第二倾斜表面设置在模具的内部，以构成所谓的两步锥形模具。 将成型粉末调整为CaO成分和SiO 2成分的总含量为50重量％以上，F成分含量为11重量％以下。 第一倾斜面和第二倾斜面的倾斜率根据所使用的粉末的碱度或凝固温度来设定。 浸渍喷嘴的钢水排出口的孔隙面积设定为2500mm 2以上，小于6400μm2以下。 钢水排出口的排出角度以水平方式倾斜向下设定为10°以上且35°以下。 根据这样的连续铸造方法，能够抑制花纹的角部的凝固延迟。