专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JP2008018453A Continuous casting method for molten metal, and immersion lance for continuous casting 有权
标题翻译：连续铸造的连续铸造方法和连续铸造
公开(公告)号：JP2008018453A
公开(公告)日：2008-01-31
申请号：JP2006192311
申请日：2006-07-13
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MIZUKAMI HIDEO , YAMANAKA AKIHIRO , KANAI TATSUO
IPC分类号： B22D11/108 , B22D11/10 , B22D11/11
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method capable of adding a proper amount of a metal element, which is low in melting point or low in boiling point, into a molten metal and uniformly and stably dispersing the metal element in a cast billet, and to provide an immersion lance for continuous casting.
SOLUTION: (1) In the continuous casting method and the immersion lance for casting, the metal element is added into the molten metal by inserting a wire or a rod containing the metal element in an immersion lance immersed in the molten metal in a tundish or a mold, and a cooling device for cooling the wire or the rod is arranged in a range from an upper position inside the immersion lance upwardly through an upper end of the immersion lance or a range from the upper end of the immersion lance upwardly, and the metal element is added into the molten metal together with an inert gas. (2) In the continuous casting method in (1) above, the molten metal is a molten steel, and the wire or the rod contains at least one metal element such as Mg, Bi, Ca, Te, Pb, MN and Yb.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：提供一种连续铸造方法，其能够将适量的熔点低或沸点低的金属元素添加到熔融金属中，并均匀且稳定地将金属元素分散在铸造坯料，并提供用于连续铸造的浸渍喷枪。（1）在连续铸造法和铸造用浸渍枪中，金属元素通过将含有金属元素的线或棒插入浸入熔融金属中的浸渍枪中而添加到熔融金属中中间包或模具以及用于冷却线材或棒材的冷却装置布置在从浸入喷枪内部的上部位置向上穿过浸入喷枪的上端或从浸入喷枪的上端的范围内的范围内向上，金属元素与惰性气体一起加入到熔融金属中。（2）在上述（1）所述的连续铸造方法中，所述熔融金属为钢水，所述线或棒包含至少一种金属元素如Mg，Bi，Ca，Te，Pb，MN和Yb。版权所有（C）2008，JPO＆INPIT

22. 发明专利

JP2006341297A CONTINUOUS CASTING METHOD, AND CONTINUOUSLY CAST SLAB 审中-公开
公开(公告)号：JP2006341297A
公开(公告)日：2006-12-21
申请号：JP2005171102
申请日：2005-06-10
申请人： SUMITOMO METAL IND
发明人： YAMANAKA AKIHIRO , SHIRAI YOSHIHISA
IPC分类号： B22D11/128 , B22D11/16 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a method for continuously casting a steel for an extra-thick steel plate such as a bridge and a construction member, and a continuously cast slab produced using the continuous casting method by which the internal quality of an extra-thick steel plate subjected to rolling can be surely assured. SOLUTION: In the continuous casting method, a slab is subjected to bulging, and thereafter, the slab including a unsolidified part 10 is subjected to rolling reduction. The bulging amount is controlled to 2 to 20 mm, and the slab in the unsolidified part in which the thickness of the equiaxed crystals on the upper half face side from the central part of the slab thickness is ≥5 mm and the average central solid phase ratio in the width direction of the slab is 0.85 to COPYRIGHT: (C)2007,JPO&INPIT

23. 发明专利

JP2006095565A Method for continuously casting round cast billet, round cast billet, and method for making seamless pipe 有权
标题翻译：连续铸造圆筒坯，圆筒坯及其制造无缝管的方法
公开(公告)号：JP2006095565A
公开(公告)日：2006-04-13
申请号：JP2004284912
申请日：2004-09-29
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： YAMANAKA AKIHIRO , ADACHI MANABU
IPC分类号： B22D11/124 , B21B19/04 , B22D11/00 , B22D27/04
摘要： PROBLEM TO BE SOLVED: To provide a method for continuously casting a large diameter cast billet with which crack in the axial center part of the cast billet can be reduced, and a method for making a pipe with which even in the case of piercing-rolling the round cast billet obtained with the above method as it is, the inner surface flaw in the pipe can be reduced.
SOLUTION: (1) In the method for continuously casting the round cast billet having over 300 mm diameter on the cross section of the cast billet, using molten steel having ≤0.1% C, the round cast billet is cast while making the whole zone at least within 60 mm diameter of the center part of the cross section in the cast billet to an equiaxial crystal structure and also, while performing slow-cooling at ≤10°C/min cooling speed on the surface of the cast billet. (2) In the round cast billet cast with the continuous casting method above (1), the crack in the axial center part developed at the center part of the cast billet exists in the zone within 15 mm radius from the center in the cross section of the cast billet. (3) The method for making the seamless pipe is performed by piercing without applying a blooming to the round billet above (2).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于连续铸造可以减少铸坯的轴向中心部分的裂纹的大直径铸造坯料的方法，以及用于制造管道的方法，即使在通过上述方法对通过上述方法获得的圆形铸造坯进行穿孔轧制，可以减少管内的内表面缺陷。解决方案：（1）在铸坯横截面上连续铸造直径超过300mm的圆铸坯的方法中，使用≤0.1％C的钢水，铸造铸钢坯整个区域至少在铸造坯料的横截面的中心部分的60mm直径内为等轴晶体结构，并且同时在铸坯表面上以≤10℃/ min的速度进行缓慢冷却。（2）在上述（1）所述的连续铸造方法的铸造铸坯中，在铸坯的中心部分形成的轴向中心部分的裂纹存在于截面中心15mm以内的区域的铸坯。（3）制造无缝管的方法是通过穿孔而不对上述（2）上的圆钢坯施加起霜。版权所有（C）2006，JPO＆NCIPI

24. 发明专利

JP2005305517A Continuous casting method and continuously cast slab 有权
标题翻译：连续铸造方法和连续铸造
公开(公告)号：JP2005305517A
公开(公告)日：2005-11-04
申请号：JP2004127235
申请日：2004-04-22
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： YAMANAKA AKIHIRO , SHIRAI YOSHIHISA , KUMAKURA SEIJI
IPC分类号： B22D11/115 , B22D11/128
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method by which a cast slab excellent in HIC(hydrogen induced cracking)-resistant characteristic and remarkably reduced in macro segregation and semi-macro segregation for producing a steel plate, is produced and a continuously cast slab. SOLUTION: (1) In a continuous casting method for low carbon steel, non-solidified portion of the low carbon steel having COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：提供一种连续铸造方法，通过该连续铸造方法制造HIC（氢诱发开裂）优异的铸造板坯，并且在制造钢板时的宏观偏析和半宏观偏析方面显着降低，连铸板。（1）在低碳钢的连续铸造法中，碳含量低于0.1％的低碳钢非固化部分用电磁力搅拌，同时将含有非固化部分的铸坯电磁搅拌位置的下游侧通过使用滚压减少辊对来轧制。然后，将电磁搅拌装置配置在最上游侧的轧制压下辊对上游3〜7μm的地方，将非固化钢电磁搅拌成不等于等于6％的等轴晶体比通过使用轧制减少辊对，等轴晶体以及含有非固化部分的铸造板坯中的未固化部分的厚度≥40％都被轧制。（2）在钢板的连续铸造法中，以上述（1）的连续铸造法铸造铸坯，粒度或线性半宏观偏析或宏观偏析的总面积比在20以内使板厚方向的中心部的％为≤5％，得到耐氢致裂纹性优异的钢板。版权所有（C）2006，JPO＆NCIPI

25. 发明专利

JP2004249315A Continuous casting method and continuous casting apparatus for molten metal 有权
标题翻译：连续铸造方法和连续铸造装置用于金属
公开(公告)号：JP2004249315A
公开(公告)日：2004-09-09
申请号：JP2003041399
申请日：2003-02-19
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MIZUKAMI HIDEO , YAMANAKA AKIHIRO
IPC分类号： B22D11/11 , B22D11/10 , B22D11/108
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method and a continuous casting apparatus, wherein metallic elements of low melting points or low boiling points are mixed with high yield and uniformly distributed in a slab.
SOLUTION: (1) The method and the apparatus are a continuous casting method and apparatus for molten metal, wherein a partition wall to partition the molten metal is provided in a tundish, and metal vapors and/or metal particles are blown into the molten metal, which flows through a passage hole, with an inert gas from an opening made in the passage hole for the molten metal, which is formed in the partition wall. (2) The method and the apparatus are a continuous casting method and apparatus for molten metal, wherein metal vapors and/or metal particles are blown into the molten metal, which flows through a discharge hole, with an inert gas from an opening made in the discharge hole of an immersion nozzle. In the cases of (1) and (2), the flow rates of the molten metal flowing through the passage hole and the discharge hole are preferably ≥ 1 m/s.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种连续铸造方法和连续铸造装置，其中低熔点或低沸点的金属元素以高产率混合并均匀地分布在板坯中。（1）方法和装置是一种用于熔融金属的连续铸造方法和装置，其中在中间包中设置用于分隔熔融金属的分隔壁，并将金属蒸汽和/或金属颗粒吹入熔融金属，其通过形成在分隔壁中的熔融金属的通孔中的开口处的惰性气体流过通孔。（2）该方法和装置是一种用于熔融金属的连续铸造方法和装置，其中金属蒸气和/或金属颗粒被吹入通过排出孔流动的熔融金属中，浸入式喷嘴的排放孔。在（1）和（2）的情况下，流过通孔和排出孔的熔融金属的流速优选为≥1m/ s。版权所有（C）2004，JPO＆NCIPI

26. 发明专利

JP2002030381A THIN STEEL SHEET AND ITS PRODUCTION METHOD 失效
公开(公告)号：JP2002030381A
公开(公告)日：2002-01-31
申请号：JP2000212963
申请日：2000-07-13
申请人： SUMITOMO METAL IND
发明人： YAMANAKA AKIHIRO , NOMURA SHIGEKI
IPC分类号： C22C38/00 , C22C38/06 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To provide a thin steel sheet free from the generation of cracking at the time of press working or the like and having good workability and to provide a continuous casting method capable of obtaining the same thin steel sheet. SOLUTION: This thin steel sheet with a thickness of

27. 发明专利

JP2000218350A CONTINUOUS CASTING METHOD 失效
公开(公告)号：JP2000218350A
公开(公告)日：2000-08-08
申请号：JP1910999
申请日：1999-01-27
申请人： SUMITOMO METAL IND
发明人： YAMANAKA AKIHIRO , TANIZAWA YOSHINORI
IPC分类号： B22D11/128
摘要： PROBLEM TO BE SOLVED: To obtain cast metal with less center segregation over its entire width and less V segregation near the thickness center by reducing thickness by the quantity equivalent to bulging or less with a concave reducing roll pair whose center of the roll barrel is smaller than the roll end portion in roll diameter till the completion of solidification after the cast metal including an unsolidified portion is bulged by a specific dimension or more. SOLUTION: Cast metal including an unsolidified portion is bulged by 10 mm or more at the center in the width direction, and then reduced with a reducing roll pair 4-1. The portion near the short-side portion on both sides is reduced more, and made to be less in thickness than the center in the width direction, and the thickness of an unsolidified portion 2c near the short-side portion on both sides becomes almost the same as that of an unsolidified portion 2b at the center in the width direction. This makes it difficult for the molten metal with concentrated segregation component existing in the unsolidified portion 2b to run into the unsolidified portion 2c, and the molten metal with concentrated segregation component existing in the unsolidified portions at the center in the width direction and near the short-side portion on both sides is all discharged to the upstream side in the casting direction.

28. 发明专利

JP2000052008A CONTINUOUS CASTING METHOD 失效
公开(公告)号：JP2000052008A
公开(公告)日：2000-02-22
申请号：JP21904498
申请日：1998-08-03
申请人： SUMITOMO METAL IND
发明人： YAMANAKA AKIHIRO , ITO YOSHIKI
IPC分类号： B22D11/128 , B22D11/16 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a continuous steel casting method to obtain sound billets with less center segregation and V segregation without generating internal cracks. SOLUTION: When a billet containing unsolidified portion is bulged and then reduced until the completion of solidifying, it is bulged at 5% or more but not more than 25% of the billet thickness when the bulging is started, and the reduction is made with a pair of reducing rolls under such conditions that the index X expressed by the following formula will be 0.5 or more. X=(R/ d)×(D/T)1/2 (where R: reduction volume, d: thickness of the unsolidified portion of 0.8 or less solid rate at the time of reducing start, D: diameter of reducing roll, T: thickness of billet after bulging, unit: mm).

29. 发明专利

JPH11188468A MANUFACTURE OF CONTINUOUS CAST PIECE 失效
公开(公告)号：JPH11188468A
公开(公告)日：1999-07-13
申请号：JP35985897
申请日：1997-12-26
申请人： SUMITOMO METAL IND
发明人： ITO YOSHIKI , YAMANAKA AKIHIRO
IPC分类号： B22D11/128
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a cast piece being continuously cast, which enables to manufacture a cast piece having a good internal quality, with little center porosity, center segregation, and internal cracks. SOLUTION: In this manufacturing method for a continuous cast piece, the cast piece with an unsolidified part is pressed under the condition that the center solid phase ratio of the cast piece is 0.3 or more and 0.8 or less and the pressed shape ratio α expressed by a formula α=(D.R) /L (in the formula, L: unsolidified thickness, D: unsolidified pressing roll diameter, and R: unsolidified pressing volume) is 0.3 or more and 0.7 or less. When a constitutional example of the continuous casting device is shown, a molten steel 23 injected in a mold 22 from an immersion nozzle 21 is cooled through a cooling roll group 24 and a guide roll group 25 to form a solidified shell 26. Furthermore, it becomes a cast piece 28 including unsolidification parts, and is pulled out through an unsolidification pressing device 29 and a post-solidification pressing device 30 by a pinch roll 31.

30. 发明专利

JPH09314298A CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPH09314298A
公开(公告)日：1997-12-09
申请号：JP13223096
申请日：1996-05-27
申请人： SUMITOMO METAL IND
发明人： TANIZAWA YOSHINORI , WATABE TADAO , YAMANAKA AKIHIRO , OTA KOZO
IPC分类号： B22D11/20 , B22D11/128 , B22D11/16
摘要： PROBLEM TO BE SOLVED: To reduce the center segregation without developing negative segregation zone by increasing the intervals of guide rolls in the thickness direction of a cast slab step by step, developing the bulging and successively, regulating rolling reduction till the completing point of solidification. SOLUTION: Molten steel 8 is poured into a mold 1 to form solidified shell 2a and drawn out as the cast slab 2 through pinch rolls 7. At this time, in a bulging zone, the guide roll group 3b between the liquidus crater end 9a of the cast slab 2 and the end part of the bulging zone increases intervals βin the thickness direction of the cast slab 2 step by step in the casting direction to develop the bulging and the max. thickness of the cast slab 2 is made 10-50% of the short side length γ of the mold 1. Further, the rolling reduction of >=10% of the short side length γ or the mold 1 per one pair of rolling reduction rolls is given in the thickness direction of the fast slab 2 by using at least a pair of rolling reduction rolls 5 in the interval from the end part of the bulging zone to the solidification completing point 9b. By this method, the center segregation can efficiently be reduced with the small rolling reduction force.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式