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    • 1. 发明授权
    • Method for continuous casting of steel and electromagnetic stirrer to be used therefor
    • 用于连续铸造钢和电磁搅拌器的方法
    • US08033319B2
    • 2011-10-11
    • US12913290
    • 2010-10-27
    • Nobuhiro OkadaSei HirakiKouji TakataniAkihiro YamanakaHidetoshi Suwa
    • Nobuhiro OkadaSei HirakiKouji TakataniAkihiro YamanakaHidetoshi Suwa
    • B22D11/115
    • B22D11/122B22D11/115B22D11/1206
    • Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions. The continuous casting method stably ensures excellent center segregation qualities over a long time in casting of high-strength steel with high crack susceptibility or steel grade for extremely thick plate product.
    • 公开了一种连续铸造,其中电磁搅拌器沿铸造方向安装在板坯的压下轧制位置的上游,并且其中具有液芯的板坯的厚度减小,其中通过使冲击流形成 - 单向搅拌和单向交替流动式搅拌,具有浓缩偏析元素的钢水在板坯的宽度方向上搅拌扩散,由此可以通过长时间的铸造操作生产稳定中心偏析品质的板坯 。 由于通过相同的电磁搅拌器选择性地施加搅拌流动模式,因此降低设备成本和提高维护性以及广泛地应对各种铸造条件是有效的。 连续铸造方法在极高的板材产品的高裂纹敏感性或钢级的高强度钢的铸造中,长时间稳定地确保优异的中心偏析性。
    • 2. 发明申请
    • METHOD FOR CONTINUOUS CASTING OF STEEL AND ELECTROMAGNETIC STIRRER TO BE USED THEREFOR
    • 连续铸造钢和电磁搅拌器的方法
    • US20110036533A1
    • 2011-02-17
    • US12913290
    • 2010-10-27
    • Nobuhiro OkadaSei HirakiKouji TakataniAkihiro YamanakaHidetoshi Suwa
    • Nobuhiro OkadaSei HirakiKouji TakataniAkihiro YamanakaHidetoshi Suwa
    • B22D27/02B22D11/00
    • B22D11/122B22D11/115B22D11/1206
    • Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions. The continuous casting method stably ensures excellent center segregation qualities over a long time in casting of high-strength steel with high crack susceptibility or steel grade for extremely thick plate product.
    • 公开了一种连续铸造,其中电磁搅拌器沿铸造方向安装在板坯的压下轧制位置的上游,并且其中具有液芯的板坯的厚度减小,其中通过使冲击流形成 - 单向搅拌和单向交替流动式搅拌,具有浓缩偏析元素的钢水在板坯的宽度方向上搅拌扩散,由此可以通过长时间的铸造操作生产稳定中心偏析品质的板坯 。 由于通过相同的电磁搅拌器选择性地施加搅拌流动模式,因此降低设备成本和提高维护性以及广泛地应对各种铸造条件是有效的。 连续铸造方法在极高的板材产品的高裂纹敏感性或钢级的高强度钢的铸造中,长时间稳定地确保优异的中心偏析性。
    • 5. 发明授权
    • Continuous casting method, continuous casting apparatus and continuously cast steel slab
    • 连铸法,连续铸造设备和连续铸钢板
    • US07086450B2
    • 2006-08-08
    • US10404087
    • 2003-04-02
    • Sei HirakiAkihiro YamanakaToshihiko MurakamiSeiji Kumakura
    • Sei HirakiAkihiro YamanakaToshihiko MurakamiSeiji Kumakura
    • B22D11/00B22D11/12
    • B22D11/1206B22D11/00
    • A continuous casting method is demonstrated, in which a slab including a liquid core 11 is bulged and then reduced in its thickness with a reduction roll pair 7, in which case, the uppermost surface of the lower roll 7b in the reduction roll pair 7 is located at a higher level than the lower pass line 9 of the slab. With this method, the slab can be efficiently reduced in its thickness without any loss of reduction force and the generation of segregation can be suppressed at the center area of the slab in the thickness direction.A continuous casting apparatus according to the invention is suitable for carrying out the continuous casting method according to the invention.A slab produced by the method according to the invention has good quality, since the segregation at the center area can be improved over the entire width in which the liquid core 11 is included.
    • 展示了连续铸造方法,其中包括液芯11的板坯被膨胀,然后用还原辊对7减小其厚度,在这种情况下,还原辊对7中的下辊7b的最上表面 位于比板的下通道9更高的水平。 通过这种方法,可以有效地减少板坯的厚度,而不会产生减小力的损失,并且可以在厚度方向上在板坯的中心区域抑制偏析的产生。 根据本发明的连续铸造设备适用于实施根据本发明的连续铸造方法。 通过本发明的方法生产的板坯具有良好的质量,因为在包括液芯11的整个宽度上可以改善中心区域的偏析。