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1. 发明专利

JP2010274321A Tundish for continuous casting 有权
标题翻译：连续铸造用TUNDISH
公开(公告)号：JP2010274321A
公开(公告)日：2010-12-09
申请号：JP2009131762
申请日：2009-06-01
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , TAKEZAKI KAZUMASA , SHIGEMATSU KIYOSHI , FUCHIGAMI KATSUHIRO
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To increase the separation-removal function of inclusions in a molten steel while improving the yield of the steel.
SOLUTION: On the bottom face 13 of a tundish 1, a flat part 30 forming a flat shape at least in the lower part of an injection nozzle 20 is formed. The corner parts between the flat part 30 and the long-side walls 10, 10 have curved parts 31, 31 curved so as to be projected to the external side. The flat part 30 and the curved part 31 are formed along the long-side walls 10 of the tundish 1, and the minimum curvature radius R(m) of the curved part 31 satisfies inequality: 0.1≤R≤(W-D)/2 [wherein W denotes a distance (m) between the intersections P, P between the tangent L
1 of the long-side wall 10 in the position of the maximum molten metal surface M
1 within the tundish 1 and the extension L
2 of the flat part 30; and D denotes the inside diameter (m) of the injection nozzle 20].
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提高钢的收率的同时提高钢水中的夹杂物的分离除去功能。解决方案：在中间包1的底面13上形成至少在喷嘴20的下部形成平坦形状的平坦部30。平坦部30与长边壁10,10之间的角部具有弯曲的弯曲部31,31，以向外侧突出。平坦部30和弯曲部31沿着中间包1的长边壁10形成，弯曲部31的最小曲率半径R（m）满足不等式：0.1≤R≤（WD）/ 2 [ 其中W表示在最大熔融金属表面M 1 中间包1和延伸部分L 2 ; D表示喷嘴20的内径（m）。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2007301630A Method for manufacturing highly clean steel 有权
标题翻译：制造高清洁钢的方法
公开(公告)号：JP2007301630A
公开(公告)日：2007-11-22
申请号：JP2006135501
申请日：2006-05-15
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： WAKAO MASAMITSU , SATO TAKAHIRO , SHIGEMATSU KIYOSHI , YAKURA SHIGENORI , NAKAMURA SHUJI
IPC分类号： B22D11/04 , B22D11/10 , B22D11/11 , B22D11/115 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To solve such a problem that inclusions in a cast slab may increase according to casting conditions and conditions for applying an electromagnetic force when both of a movable magnetic field generating device arranged in the upper portion of a casting mold and a stationary magnetic field generating device arranged in the lower portion of the casting mold are used simultaneously aiming at improving the cleanliness of the cast slab.
SOLUTION: When a DC magnetic field is applied in the direction of the thickness of the cast slab in the casting mold by means of a DC magnetic field generating device arranged in the continuous casting mold and a continuous flow of molten steel is formed in front of the solidified shell in the surface position of the molten steel by means of the movable magnetic field generating device arranged in the neighborhood of the position of the surface of the molten steel in the casting mold, a relational expression is controlled so as to satisfy a certain range, wherein relational expression is composed of a thrust force in the movable magnetic field generating device, the density of the magnetic flux in the DC magnetic field generating device, a casting speed, the width of the casting mold, and the flow rate of Ar gas to be injected into the casting mold via an injection nozzle.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题为了解决这样一个问题，当铸造件的铸造条件和铸造条件和施加电磁力的条件都可以增加时，当铸造模具的上部布置的可移动磁场产生装置并且同时使用布置在铸模的下部中的固定磁场产生装置，以提高铸造板坯的清洁度。解决方案：当通过设置在连续铸造模具中的直流磁场产生装置在铸模中沿着铸坯的厚度方向施加DC磁场时，形成连续的钢水流在钢水表面位置的凝固壳前方，借助于设置在浇注模具中的钢水表面附近的可动磁场产生装置，控制关系式，以便满足一定范围，其中关系表达式由可动磁场产生装置中的推力，直流磁场产生装置中的磁通密度，铸造速度，铸模的宽度和流量通过喷嘴喷射到铸模中的Ar气体的速率。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008254051A Continuous casting method 审中-公开
标题翻译：连续铸造方法
公开(公告)号：JP2008254051A
公开(公告)日：2008-10-23
申请号：JP2007101129
申请日：2007-04-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUCHIGAMI KATSUHIRO , WAKAO MASAMITSU , SHIGEMATSU KIYOSHI , TAKEZAKI KAZUMASA , SHIRAGAMI TAKAYUKI
IPC分类号： B22D11/18 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method where cleanliness of molten steel when replacing a ladle can be improved without causing reduction in operability and increase in cost.
SOLUTION: A molten steel is poured in such a manner that the amount W
O of molten steel in a tundish in a stationary state maintains ≥6 times a molten steel feed speed Q [ton/min] to a continuous casting machine. From the point of time at which the molten steel height in the ladle reaches ≤50 cm, the pouring is finished in such a manner that the molten steel feed speed from the ladle to the tundish satisfies inequality (1): Q/h 3×Qm, and also, the difference ΔW between it and the molten steel amount in a stationary state is made to satisfy inequality (3): ΔW>3×Qm.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种连续铸造方法，其中可以在不降低可操作性和增加成本的情况下改善钢水更换钢包时的清洁度。
解决方案：浇铸钢水，使得在静止状态的中间包中的钢水量W O 保持≥6倍的钢水进给速度Q [ton / min ]连续铸造机。从钢包中的钢水高度达到≤50cm的时间点开始，从浇包到中间包的钢水进料速度满足不等式（1）：Q / h <0.5 并且当开始浇注到钢包中时，并且当耐火喷嘴再次浸入中间包时，将耐火喷嘴浸渍高度确保为≥100mm，此时中间包中的钢水量Wmin在此时进行浸渍以满足不等式（2）：Wmin> 3×Qm，并且使其与静止状态下的钢水量之间的差ΔW满足不等式（3）：ΔW> 3×Qm。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2007301626A Method of continuous casting 有权
标题翻译：连续铸造方法
公开(公告)号：JP2007301626A
公开(公告)日：2007-11-22
申请号：JP2006135177
申请日：2006-05-15
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： WAKAO MASAMITSU , SATO TAKAHIRO , SHIGEMATSU KIYOSHI , MOROHOSHI TAKASHI
IPC分类号： B22D11/11 , B22D11/04 , B22D11/115
摘要： PROBLEM TO BE SOLVED: To solve such a problem that inclusions in a cast slab may increase according to casting conditions and conditions for applying an electromagnetic force when both of a movable magnetic field generating device arranged in the upper portion of a casting mold and a stationary magnetic field generating device arranged in the lower portion of the casting mold are used simultaneously aiming at improving the cleanliness of the cast slab.
SOLUTION: A stationary magnetic field is applied in the direction of the thickness of the cast slab in the casting mold by means of the stationary magnetic field generating device arranged in the continuous casting mold. In addition, an intermittent flow of molten steel is formed in the vicinity of the surface of a solidified shell in front of the molten steel by means of the movable magnetic field generating device arranged above the stationary magnetic field generating device and in the neighborhood of the position of the surface of the molten steel in the casting mold.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题为了解决这样一个问题，当铸造件的铸造条件和铸造条件和施加电磁力的条件都可以增加时，当铸造模具的上部布置的可移动磁场产生装置并且同时使用布置在铸模的下部中的固定磁场产生装置，以提高铸造板坯的清洁度。解决方案：通过设置在连续铸造模具中的固定磁场产生装置，在铸模中沿着铸坯厚度的方向施加固定磁场。另外，通过设置在固定磁场产生装置的上方的可动磁场产生装置，在钢水前方的凝固壳的表面附近形成钢水的间歇的流动钢水表面在铸模中的位置。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2006315044A Spray cooling method in continuous casting 审中-公开
标题翻译：连续铸造喷涂冷却方法
公开(公告)号：JP2006315044A
公开(公告)日：2006-11-24
申请号：JP2005140804
申请日：2005-05-13
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TAKEZAKI KAZUMASA , SHIRAGAMI TAKAYUKI , SHIGEMATSU KIYOSHI
IPC分类号： B22D11/124 , B22D11/22
摘要： PROBLEM TO BE SOLVED: To provide a spray cooling method where the controllable range of heat reduction amount in a slab by spray cooling in continuous casting can be increased without performing equipment investment on a large scale.
SOLUTION: A spray nozzle 3 (collision type nozzle 3a) of spraying a cooling medium from at least two injection ports 4a, 4b and spraying the same so as to be collided at a collision angle θ till the respective spray flows 5a, 5b reach the surface 1 of a slab is adopted, and also, the distance (nozzle height H) from the spray nozzle 3 to the surface 1 of the slab is made the short one of ≤220 mm, thus, even when cooling water content W is increased, the thickness L of the sprayed water in the casting direction can be fixedly held. Since the surface area A of the sprayed water is fixedly held, heat reduction amount Q larger than that in the conventional case can be realized when the cooling water content W is increased, thus the controllable range of the heat reduction amount Q in the spray cooling can be expanded.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种喷雾冷却方法，其中通过连续铸造中的喷雾冷却可以增加板坯中的减少热量的可控范围，而不需要大量进行设备投资。解决方案：喷射喷嘴3（碰撞型喷嘴3a），其从至少两个喷射口4a，4b喷射冷却介质并将其喷射以便以碰撞角θ相撞直到各喷射流5a， 5b到达板坯的表面1，并且从喷嘴3到板坯的表面1的距离（喷嘴高度H）也是≤220mm的短的一个，因此即使当冷却水含量 W增加时，可以固定地保持喷射水在铸造方向上的厚度L。由于喷射水的表面积A被固定地保持，当冷却水含量W增加时，可以实现比常规情况下更大的减热量Q，因此喷雾冷却中的减少量Q的可控范围可以扩大。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2008100248A Continuously casting tundish, and method of continuous casting 审中-公开
标题翻译：连续铸造，连续铸造方法
公开(公告)号：JP2008100248A
公开(公告)日：2008-05-01
申请号：JP2006283726
申请日：2006-10-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , SHIRAGAMI TAKAYUKI , WAKAO MASAMITSU , SHIGEMATSU KIYOSHI , FUCHIGAMI KATSUHIRO
IPC分类号： B22D11/10 , B22D11/11 , B22D41/005
摘要： PROBLEM TO BE SOLVED: To provide a continuously casting tundish, which can actively separate and remove enclosures by sufficiently uniformly mixing hot molten metal in the tundish, and has a molten metal heating device which requires no large scale facilities, and further to provide a method of continuous casting using the same tundish. SOLUTION: The continuously casting tundish receives the molten metal poured from a ladle 1, and pours the received molten metal into a casting mold for continuous casting. The tundish has a molten metal reservoir 7 at a molten metal receiving portion 9 to which the molten metal is poured from the ladle 1. An induction heating coil 6 is arranged on the outer circumference of the molten metal reservoir 7 so as to surround the molten metal reservoir 7. AC current can be supplied to the induction heating coil 6. The height H from the bottom portion 11 of the molten metal reservoir 7 to its top portion 10 is equal to or larger than the diameter D of the equivalent circle of the molten metal reservoir 7. The method of continuous casting uses the tundish described above. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种连续铸造中间包，其可以通过将中间包中的热熔融金属充分均匀地主动分离和移除外壳，并且具有不需要大规模设施的熔融金属加热装置，并且还提供使用相同中间包的连续铸造方法。
解决方案：连续浇铸中间包接收从浇包1浇注的熔融金属，并将接收到的熔融金属倒入铸模中以进行连续铸造。中间包在熔融金属容纳部9处具有熔融金属容器7，熔融金属从浇包1注入熔融金属容器9中。感应加热线圈6设置在熔融金属储存器7的外圆周上，金属容器7.可以向感应加热线圈6供给AC电流。从熔融金属容器7的底部11到其顶部10的高度H等于或大于等效圆的直径D 熔融金属容器7.连续铸造的方法使用上述中间包。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007090424A Tundish for continuous casting 有权
标题翻译：连续铸造用TUNDISH
公开(公告)号：JP2007090424A
公开(公告)日：2007-04-12
申请号：JP2005287135
申请日：2005-09-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , SHIRAGAMI TAKAYUKI , IWAO MASAMITSU , MOROHOSHI TAKASHI , SHIGEMATSU KIYOSHI , FUCHIGAMI KATSUHIRO
IPC分类号： B22D11/10 , B22D41/00
摘要： PROBLEM TO BE SOLVED: To sufficiently separate and remove fine inclusions of not more than 100 μm in molten steel. SOLUTION: In a tundish 1 for continuous casting, an upper bank 20 and a lower bank 21 are installed in a molten steel path F between a pouring nozzle 10 of molten steel M from a ladle 11 and an outlet 12 of molten steel M to a mold. The upper bank 20 and the lower bank 21 are arranged upward and downward at the same position in the molten steel path F. A slit 22 through which the molten steel M flows is formed between the upper bank 20 and the lower bank 21. An opening area of the slit 22 is set so as to be 20% and less of a cross section area of the maximum molten steel flowing path which corresponds to the highest molten steel surface level. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：在钢水中充分分离和去除不超过100μm的精细夹杂物。解决方案：在用于连续铸造的中间包1中，上部组20和下部组21被安装在钢水路径F中，在钢水浇注口10从浇包11和钢水出口12之间 M到一个模具。上层20和下堤21在钢水通道F中的相同位置上下配置。在上堤20和下堤21之间形成有流过钢水M的狭缝22。狭缝22的面积被设定为与最高钢水表面水平对应的最大钢水流路的截面积的20％以下。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2010089151A Tundish for continuous casting 有权
标题翻译：连续铸造用TUNDISH
公开(公告)号：JP2010089151A
公开(公告)日：2010-04-22
申请号：JP2008264119
申请日：2008-10-10
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJI TAKEHIKO , TAKEZAKI KAZUMASA , SHIGEMATSU KIYOSHI , FUCHIGAMI KATSUHIRO
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To improve the yield of steel while inclusions in molten steel are sufficiently separated and removed.
SOLUTION: In a tundish 1, an upper bank 20 and a lower bank 21 which are arranged upward and downward are installed at the same position in the molten steel flowing path F. A slit 22 through which the molten steel M flows is formed between the surface level M
1 of the molten steel M and the lower end of a pouring nozzle 10 during normal operation. In the lower bank 21, there is formed an outlet 23 through which the residual molten steel on the upstream side of the lower bank 21 flows during the stoppage of the operation. The slit 22 and the outlet 23 fulfills the following equations (1)-(3): H≥0.1 (1), h≤2t (2), and S
2 ≤0.2S
1 ≤0.04S
0 (3), where H is a distance (m) between the lower end of the outlet 23 and a tundish inner bottom face 1b; h is a height (m) of the outlet 23; t is a thickness (m) of the lower bank 21; S
0 is the maximum cross section area (m
2 ) of the molten steel flowing path; S
1 is an opening area (m
2 ) of the slit 22; and S
2 is an opening area (m
2 ) of the outlet 23.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提高钢的产量，同时充分分离和去除钢水中的夹杂物。解决方案：在中间包1中，向上和向下布置的上部组20和下部组21安装在钢水流动路径F中的相同位置。钢水M流过的狭缝22是在正常操作期间形成在钢水M的表面水平M 1 和倾倒喷嘴10的下端之间。在下部组21中，形成有出口23，在停止操作期间，下部组21的上游侧的剩余钢水通过该出口23流动。狭缝22和出口23满足以下等式（1） - （3）：H≥0.1（1），h≤2t（2）和S 2 ≤0.2S ≤0.04S 0 （3）其中H是出口23的下端与中间包内底面1b之间的距离（m） h是出口23的高度（m）; t是下部堤21的厚度（m）; S 0 是钢水流路的最大横截面积（m 2 ）; S 1 是狭缝22的开口面积（m 2 ）; S 2 是出口23的开口面积（m 2 ）。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2008254050A Method for producing continuously cast slab 有权
标题翻译：生产连续铸造砖的方法
公开(公告)号：JP2008254050A
公开(公告)日：2008-10-23
申请号：JP2007101128
申请日：2007-04-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUCHIGAMI KATSUHIRO , WAKAO MASAMITSU , SATO TAKAHIRO , SHIGEMATSU KIYOSHI
IPC分类号： B22D11/115 , B22D11/04 , B22D11/10 , B22D11/11
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a continuously cast slab capable of further improving the surface quality and the inside quality of a slab.
SOLUTION: In the method for producing a continuously cast slab where, to a continuous casting mold in which an electromagnetic stirring device is installed at the upper part and a magnetostatic field generating device is installed at the lower part, molten steel is fed via an immersion nozzle provided with two downward discharge holes as feed ports for molten steel, and further, the surface of the molten steel in the continuous casting mold is controlled so as to be located in the range from the center of a coil core to the upper end of the core in the electromagnetic stirring device, the ratio between stirring force by the electromagnetic stirring device and magnetic field intensity by the magnetostatic field generating device on the surface of the molten steel satisfies inequality (1): F/Bm>0.5, and also, magnetic field intensity by the magnetostatic field generating device in the position of each discharge hole satisfies inequality (2): Bt/Q>350.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：提供一种能够进一步提高板坯的表面质量和内部质量的连续铸造板坯的制造方法。解决方案：在连续铸造板坯的制造方法中，对于在上部安装电磁搅拌装置的连续铸造模具和在下部安装静磁场产生装置的钢水，通过设置有作为钢水的供给口的两个向下排出孔的浸渍喷嘴，并且连续铸造模具中的钢水表面被控制在从线圈芯的中心到在电磁搅拌装置中芯的上端，电磁搅拌装置的搅拌力与钢水表面的静磁场产生装置的磁场强度之比满足不等式（1）：F / Bm> 0.5，并且通过静磁场产生装置在每个排出孔的位置的磁场强度满足不等式（2）：Bt / Q> 350。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2006289378A Method and apparatus for detecting solidified end in continuous casting machine 有权
标题翻译：在连续铸造机中检测固化终端的方法和装置
公开(公告)号：JP2006289378A
公开(公告)日：2006-10-26
申请号：JP2005109434
申请日：2005-04-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TAKEZAKI KAZUMASA , SHIRAGAMI TAKAYUKI , SHIGEMATSU KIYOSHI
IPC分类号： B22D11/16
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for detecting a solidified end in a continuous casting machine, by which method and apparatus, the position of the solidified end can be exactly, quickly, and stably recognized.
SOLUTION: The method and the apparatus for detecting the solidified end detects the solidified end 4 of a continuously cast slab as follows. In a roll segment 6 of the continuous casting machine, the loads applied to at least two supporting columns 9 arranged on upstream side and downstream side of a casting position respectively among supporting columns 9 connecting upper and lower frames (7, 8) are measured by a load measuring instrument 10 provided on the upper portion of the segment. A load R for the segment is represented by the sum of the respective loads applied on the respective supporting columns arranged on upstream and downstream sides. The solidified end 4 of the continuously cast slab is detected based on the value of the load R for the segment during the continuous casting. The loads R for the segment are measured in a plurality of the roll segments 6 in the neighborhood of the outlet 22 of the cast slab in the continuous casting machine. The solidified end 4 of the continuously cast slab is detected based on the variation of the load R for the segment with time during the continuous casting.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于检测连铸机中的凝固端的方法和装置，通过该方法和装置，可以精确，快速和稳定地识别凝固端的位置。解决方案：用于检测凝固端的方法和装置如下检测连续铸造板坯的固化端4。在连续铸造机的轧辊段6中，分别施加到连接上部和下部框架（7,8）的支撑柱9之间分别布置在铸造位置的上游侧和下游侧的至少两个支撑柱9的负荷通过设置在该段的上部的载荷测量仪器10。用于段的负载R由施加在布置在上游侧和下游侧的相应支撑柱上的各个负载的总和表示。基于连续铸造中的段的负载R的值来检测连续铸造板坯的固化端部4。在连续铸造机中，在铸坯的出口22附近的多个辊段6中测量该段的负载R. 基于连续铸造期间的段的负荷R随时间的变化检测连续铸造板坯的固化端4。版权所有（C）2007，JPO＆INPIT

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