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1. 发明公开

EP0730924A1 CONTINUOUS CASTING METHOD FOR THIN CAST PIECE AND APPARATUS THEREFOR 失效
标题翻译： VERFAHREN ZUM KONTINUIERLICHEN GIESSENFÜRDÜNNESGUSSSTÜCKUND VORRICHTUNG
公开(公告)号：EP0730924A1
公开(公告)日：1996-09-11
申请号：EP95926516.6
申请日：1995-07-27
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： TAKEUTI, Isamu , YAMANAKA, Akihiro , OKAMURA, Kazuo , SIMIZU, Hiroyasu , KANAZAWA, Takasi , KUMAKURA, Seiji 415 Green-Hills Kashima , KOIDE, Masakuzu , MURAKAMI, Toshihiko , WATANABE, Tadao
IPC分类号： B22D11/128
CPC分类号： B22D11/1206
摘要： The invention relates to a continuous casting method and a continuous casting apparatus, in which a non-solidifying cast piece is appropriately subjected to rolling by rolls while being continuously drawn by support rolls. According to this method, a non-solidifying rolling strain and a bulging strain are reduced whereby a total accumulated strain is suppressed to be made small, and thin cast pieces free of internal crack can be manufactured even in non-solidifying rolling under the condition of high speed casting. In the apparatus, a misalignment strain is suppressed and non-solidifying rolling of cast pieces is easily performed, and modification to thickness of cast pieces can be carried out without stopping the apparatus during operation.
摘要翻译：本发明涉及一种连续铸造方法和连续铸造装置，其中非固化铸件在被支撑辊连续拉伸的同时适当地经过辊轧。根据该方法，由于非固化轧制应变和膨胀应变降低，总累积应变被抑制得小，即使在非固化轧制中也能够制造没有内部裂纹的薄铸件，条件是高速铸造。在该装置中，抑制了未对准应变，并且易于进行铸片的非固化轧制，并且可以在操作期间不停止该装置来进行铸件厚度的修改。

2. 发明授权

EP0776714B1 CONTINUOUS CASTING OF THIN CAST PIECES 失效
标题翻译：连铸薄铸件
公开(公告)号：EP0776714B1
公开(公告)日：2002-09-11
申请号：EP96917712.0
申请日：1996-06-18
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： KASEDA, Sadamichi 28-306, Daidononishi , OKAMURA, Kazuo , HIRAKI, Sei , KANAZAWA, Takashi , KUMAKURA, Seiji , YAMANAKA, Akihiro
IPC分类号： B22D11/128
CPC分类号： B22D11/115 , B22D11/1206 , B22D11/225

3. 发明公开

EP0776714A1 CONTINUOUS CASTING OF THIN CAST PIECES 失效
标题翻译：连续铸造薄铸件
公开(公告)号：EP0776714A1
公开(公告)日：1997-06-04
申请号：EP96917712.0
申请日：1996-06-18
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： KASEDA, Sadamichi 28-306, Daidononishi , OKAMURA, Kazuo , HIRAKI, Sei , KANAZAWA, Takashi , KUMAKURA, Seiji , YAMANAKA, Akihiro
IPC分类号： B22D11/128
CPC分类号： B22D11/115 , B22D11/1206 , B22D11/225
摘要： Object: to develop a method of reducing internal defects in continuous casting of thin cast pieces to improve a yield of manufacture.
Constitution: after casting a cast piece, of which central portions at the short sides after casting protrude 5 to 10 nm beyond end portions of the cast piece with cooling at short sides controlled, the cast pieces are rolled with a rolling reduction of 10 to 45 % of a thickness of the cast piece while a thickness of an unsolidified phase in the cast piece at the shorter sides amounts to 50 to 80% of a thickness of the cast piece.
摘要翻译：目的：开发一种减少连续铸造薄铸件内部缺陷的方法，以提高制造成品率。结构：在铸造铸件后，其铸造后短边的中心部分在短边冷却下超出铸件端部突出5至10nm，铸件以10至45的压下率轧制铸件厚度的百分比，而较短侧的铸件中未固化相的厚度为铸件厚度的50-80％。

4. 发明公开

EP2174734A1 HAMMERING VIBRATOR IN CONTINUOUS CASTING 审中-公开
标题翻译： HAMMER振动器连续铸造作业
公开(公告)号：EP2174734A1
公开(公告)日：2010-04-14
申请号：EP08791358.8
申请日：2008-07-18
申请人： Sumitomo Metal Industries, Ltd.
发明人： MURAKAMI, Toshihiko , YAMANAKA, Akihiro , KOGA, Norikazu
IPC分类号： B22D11/128 , B22D11/12
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.

5. 发明公开

EP1860204A1 HIGH TENSION STEEL PLATE, WELDED STEEL PIPE AND METHOD FOR PRODUCTION THEREOF 有权
标题翻译：大包钢板焊接钢管及其制造方法
公开(公告)号：EP1860204A1
公开(公告)日：2007-11-28
申请号：EP06715372.6
申请日：2006-03-08
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： TAKAHASHI, Nobuaki , HAMADA, Masahiko , OKAGUCHI, Shuji , YAMANAKA, Akihiro , SETA, Ichirou
IPC分类号： C22C38/00 , B21B3/00 , B21C37/08 , B22D11/00 , B22D11/115 , B22D11/128 , C21D8/02 , C22C38/58
CPC分类号： C21D8/0226 , B21B3/02 , B21C37/08 , C21D8/10 , C21D9/08 , C21D9/50 , C21D2211/002 , C21D2211/005 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/58 , Y10S148/908 , Y10T428/12292
摘要： In a high-tensile steel plate according to the invention, the carbon equivalent Pcm represented in Expression (1) is from 0.180% to 0.220%, the surface hardness is a Vicker's hardness of 285 or less, the ratio of a Martensite Austenite constituent in the surface layer is not more than 10%, the ratio of a mixed structure of ferrite and bainite inside beyond the surface layer is not less than 90%, the ratio of the bainite in the mixed structure is not less than 10%, the thickness of the lath of bainite is not more than 1 µm, the length of the lath is not more than 20 µm, and the segregation ratio as the ratio of the Mn concentration in the center segregation part relative to the Mn concentration at a part in a depth equal to 1/4 of the thickness of the plate from the surface is not more than 1.3. Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10+5B ... (1) where the element symbols in Expression (1) represent the % by mass of the respective elements. In this way, the high-tensile steel plate according to the invention has a yield strength of at least 551 MPa and a tensile strength of at least 620 MPa as well as high toughness, high propagating shear fracture and high weldability.

6. 发明授权

EP0730924B1 CONTINUOUS CASTING METHOD FOR THIN CAST PIECE 失效
标题翻译：方法连铸薄铸片
公开(公告)号：EP0730924B1
公开(公告)日：2003-01-29
申请号：EP95926516.6
申请日：1995-07-27
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： TAKEUTI, Isamu , YAMANAKA, Akihiro , OKAMURA, Kazuo , SIMIZU, Hiroyasu , KANAZAWA, Takasi , KUMAKURA, Seiji 415 Green-Hills Kashima , KOIDE, Masakuzu , MURAKAMI, Toshihiko , WATANABE, Tadao
IPC分类号： B22D11/128 , B22D11/12 , B21B1/46 , B21B13/22
CPC分类号： B22D11/1206
摘要： The invention relates to a continuous casting method and a continuous casting apparatus, in which a non-solidifying cast piece is appropriately subjected to rolling by rolls while being continuously drawn by support rolls. According to this method, a non-solidifying rolling strain and a bulging strain are reduced whereby a total accumulated strain is suppressed to be made small, and thin cast pieces free of internal crack can be manufactured even in non-solidifying rolling under the condition of high speed casting. In the apparatus, a misalignment strain is suppressed and non-solidifying rolling of cast pieces is easily performed, and modification to thickness of cast pieces can be carried out without stopping the apparatus during operation.

7. 发明公开

EP2269750A1 METHOD FOR CONTINUOUS CASTING OF STEEL AND ELECTROMAGNETIC STIRRER USABLE THEREFOR 有权
标题翻译：法钢连铸确保两保质电磁AGITATOR
公开(公告)号：EP2269750A1
公开(公告)日：2011-01-05
申请号：EP09738676.7
申请日：2009-03-25
申请人： Sumitomo Metal Industries, Ltd.
发明人： OKADA, Nobuhiro , HIRAKI, Sei , TAKATANI, Kouji , YAMANAKA, Akihiro , SUWA, Hidetoshi
IPC分类号： B22D11/115 , B22D11/128
CPC分类号： B22D11/122 , B22D11/115 , B22D11/1206
摘要： 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 for the decrease in facility and equipment costs or improvement in maintainability, extensively coping with various casting conditions. Thus, the technology can be applied extensively as a continuous casting method capable of stably ensuring 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.
摘要翻译：公开了一种连续铸造，在其中电磁搅拌装置的上游，在浇铸方向上，板坯的轧制位置的，并在其中与液体芯的板坯在厚度通过赋予碰撞流forming-减少，worin 型搅拌和单方向交替流形成模具的搅拌，用浓偏析元素钢水搅拌并在板坯的宽度方向，由此在中心偏析的品质稳定的板坯能够制造在长时间的铸造手术扩散，由于搅拌流动模式被选择性地由相同的电磁搅拌器的手段赋予，有效的是用于在可维护性设施和设备的成本或改进的减小，与各种铸造条件广泛应对。因此，该技术可被广泛地用作能够在具有高裂纹敏感性或钢级高强度钢的铸造在长时间内稳定地确保优良的中心偏析品质于极厚板产品的连续铸造方法中的应用。

8. 发明公开

EP2008733A1 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：EP2008733A1
公开(公告)日：2008-12-31
申请号：EP06730223.2
申请日：2006-03-28
申请人： SUMITOMO METAL INDUSTRIES, LTD.
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
摘要： A process for producing a seamless pipe characterized by including a continuous casting step in which a round billet material having a carbon content of not more than 0.1% by mass and having an outside diameter exceeding 300 mm is cast so that the whole of a central circular region, in terms of cross section, which has a diameter of at least 60 mm may be constituted of an equiaxed crystal structure. Further, in the process for seamless-pipe production, the round billet obtained from the billet material as cast produced in the above continuous casting step may be pierced/rolled with a piercing/rolling machine under conditions in which the ratio of the number of billet rotations to the billet outer diameter draft is set in the suitable range according to the ratio of the gorge portion diameter to the inlet diameter at the inclined rolls, thereby giving a seamless pipe reduced in the incidence of inner surface flaws. Furthermore, as a piercing plug, a suitably configured plug, having a substantially round column-shaped front rolling section with a spherical tip face, may be used, so that Mannesmann fracture and circumferential shear strains are significantly inhibited and no billet onset-engagement failure occurs at all. This process for seamless-pipe production makes it possible to produce a seamless pipe much more improved in inner surface quality with exceedingly high productivity.
摘要翻译： 1.一种无缝管的制造方法，其特征在于，具有连续铸造工序，该连续铸造工序中，将碳含量为0.1质量％以下且外径超过300mm的圆坯材铸造成整体中央圆形就截面而言，直径至少60mm的区域可以由等轴晶体结构构成。此外，在无缝钢管生产过程中，由上述连续铸造步骤生产的铸件坯料获得的圆坯可以在穿孔/轧制机的条件下进行穿孔/轧制，其中钢坯数量根据倾斜辊处的峡部直径与入口直径的比率，将对钢坯外径吃水的旋转设定在合适的范围内，从而得到内表面缺陷减少的无缝钢管。此外，作为穿孔塞，可以使用适当构造的具有基本上为圆柱形的具有球形顶端面的圆柱形前部轧制部分的塞子，从而显着抑制曼内斯曼断裂和圆周剪切应变，并且不会出现钢坯起始接合失效根本不存在。这种无缝管生产工艺可以生产出内表面质量更高，生产效率极高的无缝管。

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