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2. 发明公开

EP3012044A1 CONTINUOUS CASTING METHOD FOR CASTING FOR EXTRA THICK STEEL SHEET 失效转让
标题翻译： STRANGGIESSANLAGE ZUM GIESSEN EINES EXTREM DICKEN STAHLBLECHS
公开(公告)号：EP3012044A1
公开(公告)日：2016-04-27
申请号：EP14813339.0
申请日：2014-06-17
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： YAMANAKA, Akihiro , TAGUCHI, Kenji , TAJIMA, Naoki
IPC分类号： B22D11/20 , B22D11/00 , B22D11/128
CPC分类号： B22D11/00 , B22D11/128 , B22D11/1287 , B22D11/20
摘要： A primary object of the present invention is to provide a method for continuous casting with which slabs for heavy gauge steel plate in which porosities remaining about their centers in the thickness direction are extremely decreased can be manufactured.
In the present invention, when a slab that is used as a material for manufacturing heavy gauge steel plate by hot-rolling is continuously cast, two pairs of reduction rolls 7 that are arranged separately from each other with an interval between the pairs in a range from 3 m to 7 m, between which a support roll 6 is arranged, are used, reduction is carried out on a slab 8 by 3 to 15 mm with the reduction rolls 7 at the first stage under the condition where the slab includes an unsolidified portion with the solid-phase ratio of the central part of the slab in the thickness direction in a range from 0.8 to less than 1, and reduction is further carried out on the slab with the reduction rolls 7 at the second stage under the condition where the slab is completely solidified.
摘要翻译：本发明的主要目的是提供一种用于连续铸造的方法，其中可以制造其厚度方向上保留在其中心附近的孔隙率大的钢板的板坯。在本发明中，当连续铸造用作通过热轧制造重型钢板的材料的板坯时，在成对间隔开的范围内彼此分开配置的两对还原辊7 在3米-7米之间，其中布置有支撑辊6，在平板8包括未固化的条件下，在第一阶段用还原辊7在板坯8上进行3至15mm的还原板坯中心部分的厚度方向的固相比为0.8〜小于1的部分，在第二阶段的还原辊7的板坯上进一步进行还原，板坯完全固化。

3. 发明授权

EP2269750B1 METHOD FOR CONTINUOUS CASTING OF STEEL AND ELECTROMAGNETIC STIRRER TO BE USED THEREFOR 有权
标题翻译：法钢连铸确保两保质电磁AGITATOR
公开(公告)号：EP2269750B1
公开(公告)日：2016-07-20
申请号：EP09738676.7
申请日：2009-03-25
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： OKADA, Nobuhiro , HIRAKI, Sei , TAKATANI, Kouji , YAMANAKA, Akihiro , SUWA, Hidetoshi
IPC分类号： B22D11/115 , B22D11/12
CPC分类号： B22D11/122 , B22D11/115 , B22D11/1206

4. 发明公开

EP3144080A1 CONTINUOUS CASTING METHOD FOR SLAB 有权转让
标题翻译：紧张局势FÜRPLATTEN
公开(公告)号：EP3144080A1
公开(公告)日：2017-03-22
申请号：EP15792491.1
申请日：2015-05-12
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： TAJIMA, Naoki , YAMANAKA, Akihiro , TAGUCHI, Kenji
IPC分类号： B22D11/128
摘要： A primary object of this invention is to provide a continuous casting method for carrying out reduction on a slab in a continuous casting machine, and by which the slab of excellent internal quality can be continuous-cast even if the casting speed is changed. This invention provides a method for continuous-casting a slab wherein upon continuous-casting a slab while reduction is carried out on the slab using a continuous casting machine with two stages of reduction rolls, each of the two stages consisting of a pair of the reduction rolls, and being arranged along a casting direction, a diameter of each of the reduction rolls being 1.2 to 2.0 times as much as thickness of the slab just before reduction with corresponding reduction rolls, the continuous casting machine including the reduction rolls and support rolls arranged between the reduction rolls, when a casting speed is reduced compared to a state where the slab is cast at a constant speed under combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab and reduction with reduction rolls at a second stage on a solidified portion of the slab; accompanying movement of a place of the slab where the solidification is ended upstream in the casting direction due to the reduction of the casting speed, the combination is switched to combination of reduction with the reduction rolls at the first stage on a portion of the slab at an end of solidification and the reduction with the reduction rolls at the second stage on the solidified portion of the slab.
摘要翻译：本发明的主要目的是提供一种用于在连续铸造机中对板坯进行还原的连续铸造方法，即使铸造速度改变，也能够连续铸造具有优异内部质量的板坯。本发明提供了一种连续铸造板坯的方法，其中在使用具有两级还原辊的连续铸造机在板坯上进行连续铸造的同时，在两个阶段中的每一个由一对还原并且沿着铸造方向布置，每个还原辊的直径是在相应的还原辊之前刚好在还原之前的板坯的厚度的1.2至2.0倍，连续铸造机包括还原辊和支撑辊布置在压延辊之间，与在板坯的非固化部分的第一阶段的还原与还原辊的组合下以等速铸造的状态相比铸造速度降低，并且在第二阶段用还原辊还原在板坯的固化部分上阶段; 由于铸造速度的降低，板坯的位置的随动运动，其中凝固在铸造方向上游延伸，所以将组合切换为在一部分板坯上的第一级的还原辊的组合在板坯的凝固部分的第二阶段的凝固终止和还原辊的还原。

5. 发明公开

EP2857122A1 CONTINUOUS CASTING METHOD FOR SLAB 有权
标题翻译： VERFAHREN ZUM STRANGGIESSEN VON BRAMMEN
公开(公告)号：EP2857122A1
公开(公告)日：2015-04-08
申请号：EP12877100.3
申请日：2012-05-24
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： YAMANAKA, Akihiro , NAGAI, Shinji , MURAKAMI, Toshihiko , MIZUKAMI, Hideo
IPC分类号： B22D11/128 , B22D11/00 , B22D11/20
CPC分类号： B22D11/207 , B22D11/1206 , B22D11/1281 , B22D11/141
摘要： A method of continuously casting a strand is characterized by using a movable reduction roll unit including rolls capable of reduction-rolling a strand and movable in a vertical direction from a mold along the strand, wherein, after the withdrawing of the strand is completed, the rolls are moved in a vertical direction and accordingly reduction-roll the stopped strand. The move of the rolls while reduction-rolling the strand may be in a vertically upward direction. In addition, the transverse cross section of the strand may be of a circular shape. With this continuous casting method, it is possible to reduce centerline cavities and porosity in a central region of a strand and shrinkage cavities and centerline cavities in an upper portion of the strand, regardless of the size of its cross sectional area, at a low equipment cost and without causing deterioration of the surface quality.
摘要翻译：一种连续铸造线材的方法的特征在于，使用包括能够从股线沿着垂直方向从模具沿垂直方向还原轧制的轧辊的可动的压下辊单元，其中，在完成轧制线的退出之后，辊沿垂直方向移动，因此减少轧制停止的股线。辊的移动可以在垂直向上的方向上移动。此外，股线的横截面可以是圆形形状。利用这种连续铸造方法，可以在低设备（不管其横截面积的大小）下，减少股线的中心区域和股线上部的收缩空腔和中心线腔的中心线腔和孔隙率成本并且不会导致表面质量的劣化。

6. 发明授权

EP2174734B1 HAMMERING VIBRATOR IN CONTINUOUS CASTING 有权
公开(公告)号：EP2174734B1
公开(公告)日：2018-08-22
申请号：EP08791358.8
申请日：2008-07-18
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： MURAKAMI, Toshihiko , YAMANAKA, Akihiro , KOGA, Norikazu
IPC分类号： B22D11/128 , B22D11/12 , B22D11/114
CPC分类号： B22D11/12 , B22D11/114 , B22D11/1206
摘要： PROBLEM: To effectively prevent the occurrence of segregation in a casting slab, even when the slab width is large. MEANS: Continuously performing soft reduction during continuous casting of a slab having a rectangular transverse cross section such that a solid fraction at center in a direction of thickness f S is at least 0.1-0.9 and a reduction ratio in a direction of slab thickness is within 1% per meter of length in a direction of casting, and continuously impacting both of the opposing sides of a narrow side of the slab 1 in a direction of slab width at at least one site where the solid fraction at center in the direction of thickness f S is within the range of 0.1-0.9, the impact being performed by using a block 3 disposed between paired pinch rolls 2a, 2b disposed adjacent to each other at a vibration frequency of impact of 4-12 Hz and an impact energy of 30-150 J. ADVANTAGEOUS EFFECTS: The occurrence of segregation such as center segregation and V-shape segregation is effectively prevented, even in a casting slab having a large slab width, thereby resulting in a casting slab with good internal quality.

7. 发明授权

EP2857122B1 CONTINUOUS CASTING METHOD FOR SLAB 有权
标题翻译：板坯的连续铸造方法
公开(公告)号：EP2857122B1
公开(公告)日：2017-09-20
申请号：EP12877100.3
申请日：2012-05-24
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： YAMANAKA, Akihiro , NAGAI, Shinji , MURAKAMI, Toshihiko , MIZUKAMI, Hideo
IPC分类号： B22D11/12 , B22D11/128 , B22D11/00 , B22D11/20 , B22D11/14 , B21B1/46
CPC分类号： B22D11/207 , B22D11/1206 , B22D11/1281 , B22D11/141

8. 发明授权

EP2008733B1 PROCESS FOR PRODUCING SEAMLESS PIPE 有权转让
标题翻译：生产无缝管的过程
公开(公告)号：EP2008733B1
公开(公告)日：2013-11-06
申请号：EP06730223.2
申请日：2006-03-28
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： YAMANAKA, Akihiro , ADACHI, Manabu , YAMAKAWA, Tomio , NAKAIKE, Kouji , SHIMODA, Kazuhiro , ANRAKU, Toshiro
IPC分类号： B21B19/04 , B22D11/00 , B22D11/124 , B22D27/04
CPC分类号： B21B19/04 , B22D11/124

9. 发明授权

EP3012044B1 CONTINUOUS CASTING METHOD FOR CASTING FOR EXTRA THICK STEEL SHEET 失效转让
标题翻译：连续铸造超厚钢板的方法
公开(公告)号：EP3012044B1
公开(公告)日：2018-05-09
申请号：EP14813339.0
申请日：2014-06-17
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： YAMANAKA, Akihiro , TAGUCHI, Kenji , TAJIMA, Naoki
IPC分类号： B22D11/20 , B22D11/00 , B22D11/128
CPC分类号： B22D11/00 , B22D11/128 , B22D11/1287 , B22D11/20
摘要： A primary object of the present invention is to provide a method for continuous casting with which slabs for heavy gauge steel plate in which porosities remaining about their centers in the thickness direction are extremely decreased can be manufactured. In the present invention, when a slab that is used as a material for manufacturing heavy gauge steel plate by hot-rolling is continuously cast, two pairs of reduction rolls 7 that are arranged separately from each other with an interval between the pairs in a range from 3 m to 7 m, between which a support roll 6 is arranged, are used, reduction is carried out on a slab 8 by 3 to 15 mm with the reduction rolls 7 at the first stage under the condition where the slab includes an unsolidified portion with the solid-phase ratio of the central part of the slab in the thickness direction in a range from 0.8 to less than 1, and reduction is further carried out on the slab with the reduction rolls 7 at the second stage under the condition where the slab is completely solidified.

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