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1. 发明专利

JP2009006370A Continuous casting method for steel 有权
标题翻译：钢的连续铸造方法
公开(公告)号：JP2009006370A
公开(公告)日：2009-01-15
申请号：JP2007170578
申请日：2007-06-28
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KAWAMOTO MASAYUKI , OKADA NOBUHIRO , HANAO MASAHITO , TAKATANI KOJI , OTA KOZO
IPC分类号： B22D11/115 , B22D11/04 , B22D11/11 , B22D11/18
CPC分类号： B22D11/115
摘要： PROBLEM TO BE SOLVED: To provide a method where, while controlling the flow of a molten steel in a mold by an electromagnetic coil system combinedly usable for electromagnetic braking and electromagnetic stirring, a steel is continuously cast, in which the application mode of electric current to a combination coil is materialized.
SOLUTION: Electromagnetic coils each having two coils 5b coiled around the respective outer circumferential parts of two magnetic pole iron cores 5a, and one coil 5c coiled around the outer circumferential part of the matched two magnetic pole iron cores 5a are arranged at the outer circumference of the respective long sides 3b of a mold 3 by the same number, (2n+2) pieces (n is natural number) in the total of the outer circumferences of the long sides 3b. When a molten steel 2 is subjected to electromagnetic stirring, three or more polyphase ac with a current phase difference of 90 to 120 degrees is made to flow to the respective coils 5b, 5c in all the electromagnetic coils. When electromagnetic braking is applied to the molten steel 2, per electromagnetic coil, dc is made to flow to the coils 5c, or dc is made to flow to the three coils 5b, 5c, and the steel is continuously cast. The electromagnetic braking or electromagnetic stirring is selectively changed in accordance with the componential composition and the feed quantity of the molten steel 2 fed to the mold 3. According to this invention, a satisfactory slab can be stably obtained without depending on steel kinds and casting conditions.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种方法，其中通过组合可用于电磁制动和电磁搅拌的电磁线圈系统控制模具中钢水的流动，连续铸造钢，其中应用模式实现电流到组合线圈的电流。解决方案：在两个磁极铁芯5a的各个外周部分周围卷绕有两个线圈5b的电磁线圈，以及在匹配的两个磁极铁芯5a的外圆周部分周围卷绕的一个线圈5c布置在模具3的各个长边3b的外周相同数量，在长边3b的外周的总数中，（2n + 2）个（n是自然数）。当对钢水2进行电磁搅拌时，使电流相位差为90〜120度的三相以上的多相交流流向所有电磁线圈中的各个线圈5b，5c。当对钢水2施加电磁制动时，对于每个电磁线圈，使dc流向线圈5c，或者使dc流到三个线圈5b，5c，并且连续铸造钢。根据供给到模具3的钢水2的组成成分和供给量，选择性地变更电磁制动或电磁搅拌。根据本发明，可以稳定地获得满意的板坯，而不依赖于钢种和铸造条件。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2007007719A Method for continuously casting steel 有权
标题翻译：连续铸钢的方法
公开(公告)号：JP2007007719A
公开(公告)日：2007-01-18
申请号：JP2005195360
申请日：2005-07-04
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： OKADA NOBUHIRO , TAKATANI KOJI , KAWAMOTO MASAYUKI
IPC分类号： B22D11/04 , B22D11/11 , B22D11/115
摘要： PROBLEM TO BE SOLVED: To secure the sufficient performances in an electromagnetic brake and an electromagnetic stirring, related to a method for continuously casting steel while controlling the flowing of molten steel in a mold by using an electromagnetic coil unit useable for the electromagnetic brake together with the electromagnetic stirring, for example, when a slab is continuously cast.
SOLUTION: This continuous casting method is the one, with which the electromagnetic brake or the electromagnetic stirring is selectively acted to the molten steel 2 by making to flow a direct current or multi-phase alternating current having ≥3 phases to coils arranged at the outer circumference of the long wall sides 3b. The coils are arranged to the same pieces on each long wall side and (2n+2) (n is natural number) in the total in the mold. Each coil set has two pieces of coils wound on the outer circumferential part in the respective magnetic pole iron core and one piece of coil wound on the outer circumferential part with two pieces of magnetic pole iron cores together. At the electromagnetic stirring time, in the adjacent coils at each long wall side, the multi-phase alternating current having 90° to 120° current phase difference is made to flow. Further, at the electromagnetic braking time, the direct current is made to flow to the one piece of coil wound on the outer circumferential part to each coil set with two pieces of magnetic pole iron cores together, or the direct current is made to flow three pieces of coils.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了确保与用于连续铸造钢的方法相关的电磁制动和电磁搅拌的充分性能，同时通过使用可用于电磁的电磁线圈单元来控制钢水在模具中的流动制动器与电磁搅拌一起，例如，当板坯连续铸造时。解决方案：这种连续铸造方法是将电磁制动器或电磁搅拌选择性地作用于钢水2，使具有≥3相的直流或多相交流电流流过线圈在长壁侧3b的外周。线圈在模具中的每个长壁侧和（2n + 2）（n是自然数）上相同的部件布置。每个线圈组具有卷绕在各个磁极铁芯的外周部上的两个线圈，并且一个卷绕在外圆周部分上的一个线圈，两个磁极铁芯在一起。在电磁搅拌时间，在各长壁侧的相邻线圈中，流动90°〜120°电流相位差的多相交流电流。此外，在电磁制动时间，使直流电流流到缠绕在外圆周部分上的一片卷绕到具有两片磁极铁芯的每个线圈组，或者使直流电流流动三次线圈片版权所有（C）2007，JPO＆INPIT

3. 发明专利

JPH0999271A METHOD FOR CONTROLLING COATING FILM THICKNESS IN ROLL COATER 失效
公开(公告)号：JPH0999271A
公开(公告)日：1997-04-15
申请号：JP28668095
申请日：1995-10-05
申请人： SUMITOMO METAL IND
发明人： HAMAHAGI KENJI , TAKATANI KOJI
IPC分类号： B05D1/28 , B05C1/08 , B05D3/00 , B05D7/14
摘要： PROBLEM TO BE SOLVED: To obtain a highly precise coating film thickness at the time of continuously coating a strip material such as cold-rolled steel sheet by a roll coater by conducting feedback control. SOLUTION: In the method for controlling the coating film thickness in a roll coater, a device for measuring the thickness of an undried coating film and a device for measuring the thickness of the dried film set on the outlet side of a drier are installed, both measured values are compared, and the parameters of the approximate expression for calculating the coating film thickness according to the undried film thickness measuring device are corrected based on the deviation. The undried coating film thickness calculated by the corrected approximate expression is fed back to the amt. of coating material to be forced in between the rolls of a roll coater head, and the film thickness is controlled to a necessary value.

4. 发明专利

JPH08281392A METHOD FOR CLEANING MOLTEN STEEL 失效
公开(公告)号：JPH08281392A
公开(公告)日：1996-10-29
申请号：JP10799995
申请日：1995-04-07
申请人： SUMITOMO METAL IND
发明人： TAKATANI KOJI
IPC分类号： B22D11/10 , B22D11/11 , B22D11/112 , B22D11/114 , B22D11/115 , B22D11/116 , B22D11/117 , B22D27/02 , B22D43/00
摘要： PURPOSE: To effectively separate even small inclusion in a floatation separation method of using the electromagnetic force and to drastically improve the separating efficiency by conducting Dc current to molten steel along a flowing passage and impressing static magnetic field in the direction crossed with the flowing passage. CONSTITUTION: A pair of electromagnets 9 are arranged so as to be faced to each other at both sides of a tundish 4. The electromagnets 9 are the DC electromagnets having the different polarities, and the static magnetic field B is impressed to the molten steel 1 flowing between the magnets in the horizontal direction at right angles to the molten steel flow. By this method, the electromagnetic force J×B is vertically added to the molten steel 1 flowing between the electromagnets 9. Therein, the direction of the static magnetic field B is decided so that the electromagnetic force J×B is generated in the gravity direction. Therefore, the molten steel 1 flowing in the tundish from the one end part to the other end part receives the electromagnetic force in the gravity direction at the time of passing through between the electromagnets 9. By this method, the rising force in the direction reveres to gravity is added to foreign matter having no electric conductivity in the molten steel 1 to subject the inclusion to floatation separation.

5. 发明专利

JPH04251660A METHOD AND DEVICE FOR REMOVING INCLUSION IN MOLTEN STEEL 失效
公开(公告)号：JPH04251660A
公开(公告)日：1992-09-08
申请号：JP2787291
申请日：1991-01-28
申请人： SUMITOMO METAL IND
发明人： TAKATANI KOJI
IPC分类号： B22D11/10 , B22D11/11 , B22D11/112 , B22D11/114 , B22D11/115 , B22D11/116 , B22D11/117 , B22D43/00
摘要： PURPOSE:To effectively remove the inclusions in a molten steel in a molten steel container. CONSTITUTION:A pair of gate plates 4, 5 are provided in the mid-way of the flow route between the inflow port and outflow port of the molten steel container so that the rising flow of the molten steel 6 arises between these opposite surfaces. A uniform magnetic field is imparted to the rising flow between the gate plates 4 and 5 by magnets 7, 7 disposed on both sides, of the gate plates 4, 5. The rising flow of the molten steel 6 which is conductive fluid is provided with the large velocity distribution near the wall surfaces between the gate plates 4 and 5 by a Hartmann effect. Then, the large approaching force to the gate plates 4, 5 acts on the inclusion particles A concentrating near the gate plates 4, 5 in the rising flow of the molten steel 6 and these particles are surely adhered to the gate plates 4, 5. The inclusion particles A are thus effectively removed.

6. 发明专利

JPH02205236A METHOD FOR CONTINUOUSLY CASTING MOLTEN METAL 失效
公开(公告)号：JPH02205236A
公开(公告)日：1990-08-15
申请号：JP2440489
申请日：1989-02-02
申请人： SUMITOMO METAL IND
发明人： TAKATANI KOJI , NAKAI TAKESHI
IPC分类号： B22D11/07 , B22D11/10 , B22D11/108 , B22D11/111
摘要： PURPOSE:To enable high speed casting and improvement of a cast slab quality by supplying molten powder on molten steel surface in a mold and further, supplying powdery or granular powder on this. CONSTITUTION:Molten steel 5 is poured into the mold 2 through a submerged nozzle 1 from a tundish. Shell 6 developed in the mold 2 is drawn downward and cooled with cooling spray 4 to form a cast slab 7. Then, the molten powder 8a is supplied onto the molten steel surface 5 in the mold 2 from a molten powder supplying nozzle 3. The powdery or granular powder 9a is supplied on this and casting is executed. By this method, lubricating function and heat holding function, which the powder has, can be sufficiently displayed.

7. 发明专利

JPS62214115A PRODUCTION OF PIG IRON 失效
公开(公告)号：JPS62214115A
公开(公告)日：1987-09-19
申请号：JP5539886
申请日：1986-03-13
申请人： SUMITOMO METAL IND
发明人： IWANAGA YUJI , TAKATANI KOJI
IPC分类号： C21B11/02
摘要： PURPOSE:To obtain a pig iron without using a coke furnace, etc., and without receiving the limitation for raw materials by bringing a rod-shaped molding of raw material powder contg. powdery iron oxide into contact, in counter current, with the high-temp. reducing gas generated in a melting and gasifying furnace in the lower part of a molding machine and melting the reduced iron formed in such a manner in the above-mentioned furnace. CONSTITUTION:Pulverized coal 15, powdery iron ore 16 and binder 17 are mixed 11 and the mixture is supplied 13, 10, 12 into a charging hopper 19. After the mixture in the hopper 9 is press-molded by the molding machine 7, the molding is let off in the form of a rod continuously downward from the lower part of the machine so as to descend in a transfer pipe 8. On the other hand, the high-temp. reducing gas which consists essentially of CO and H2 and is generated by the combustion reaction of O2 and pulverized coal respectively fed 2 and 3 from the bottom of the melting and gasifying furnace 1 is raised in the pipe 8 from the upper part of the furnace. The rod-shaped molding 18 and the reducing gas are brought into contact, in counter current, with each other in the pipe 8 to soften, melt and calcine the coal in the molding 18 as well as to progress the reduction reaction of the powder ore. The powder ore is converted to the reduced iron during the time when the powder ore in the molding 18 arrives at the furnace 1 in succession to the above. The pig iron and slag formed in the furnace 1 are led 6 to the outside of the furnace.

8. 发明专利

JPS62211310A PRODUCTION OF PIG IRON 失效
公开(公告)号：JPS62211310A
公开(公告)日：1987-09-17
申请号：JP5435386
申请日：1986-03-12
申请人： SUMITOMO METAL IND
发明人： IWANAGA YUJI , TAKATANI KOJI
IPC分类号： C21B13/14 , C21B13/00
摘要： PURPOSE:To reduce energy consumption and to contrive use of lower grade raw materials by combining a vertical furnace for making carbonization of molded coal and gas reduction of iron ore and a melting and gasifying furnace for melting a reduced iron and producing a reducing gas. CONSTITUTION:The molded coal formed by molding pulverized coal and the iron ore are charged into the moving bed type vertical furnace 1 where the iron ore is reduced by the high-temp. reducing gas from a reducing gas supplying line 27 and the molded coal is carbonized by the sensible heat of the gas. The reduced iron ore and the carbonized molded coal are charged to the upper part of the coke packed bed in the melting and gasifying furnace 2. The high- temp. reducing gas is ascended in the coke packed bed to melt the reduced iron ore and to allow the molten metal thereof to flow downward in the coke packed bed in the counter current with the ascending gas. The unreduced metallic oxide is reduced by the coke in the process on the down stream thereof, by which the molten iron is obtd.

9. 发明专利

JPS6268888A PRODUCTION OF MOLDED COAL FOR MOLDED COKE 失效
公开(公告)号：JPS6268888A
公开(公告)日：1987-03-28
申请号：JP20967185
申请日：1985-09-20
申请人： SUMITOMO METAL IND
发明人： IWANAGA YUJI , NISHIOKA KUNIHIKO , TAKATANI KOJI , MIURA KIYOSHI
IPC分类号： C10B57/06
摘要： PURPOSE:To economically obtain molded coal for molded coke, having the same strength as that of conventional molded coal, preventing fusing during carbonization process, by blending non-caking coal as a main component with an inorganic material such as cement, etc., as a binder in a specific ratio, kneading the blend and molding. CONSTITUTION:Non-caking coal as a main component is blended with 4-6wt% inorganic material such as cement, lime, serpentine, dolomite, etc., kneaded and molded to give the aimed molded coal for molded coke.

10. 发明专利

JP2009195951A Continuous casting method for steel 审中-公开
标题翻译：钢的连续铸造方法
公开(公告)号：JP2009195951A
公开(公告)日：2009-09-03
申请号：JP2008040224
申请日：2008-02-21
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： HANAO MASAHITO , KAWAMOTO MASAYUKI , BABA NOBUAKI , OKADA NOBUHIRO , TAKATANI KOJI
IPC分类号： B22D11/108 , B22D11/00 , B22D11/111 , B22D11/115
摘要： PROBLEM TO BE SOLVED: To provide a continuous casting method for a steel where a molten steel in a mold is subjected to electromagnetic stirring, so as to prevent the bubble defect of the surface layer in the slab, and further, the entanglement of mold flux is prevented.
SOLUTION: Upon continuous casting for a steel, when a molten steel in a mold is subjected to electromagnetic stirring in such a manner that a rotating flow in the horizontal direction is formed, mold flux in which viscosity at 1,300°C is ≤3 poise and bulk density at ordinary temperature is ≥0.7 g/cm
3 is added to the surface of the molten steel. Desirably, the basicity (T.CaO/SiO
2 ) of the mold flux is controlled to ≥1.0. In such a state that the molten steel is subjected to electromagnetic stirring, the melting speed of the mold flux is held to a proper state, and the operation of the casting can be stabilized, and further, an extralow carbon steel slab having satisfactory surface cleanliness can be obtained.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种连续铸造方法，用于对模具中的钢水进行电磁搅拌的钢，以防止板坯中的表面层的气泡缺陷，此外，纠缠的模具通量被阻止。解决方案：在连续铸造钢时，当模具中的钢水以形成水平方向的旋转流动的方式进行电磁搅拌时，在1300℃下的粘度≤ 常压下的3泊和体积密度为≥0.7g/ cm 3。在钢水表面加入 3 。理想的是，将模具焊剂的碱度（T.CaO / SiO 2 / SB> 2 ）控制在≥1.0。在使钢水经受电磁搅拌的状态下，将模具熔剂的熔融速度保持在适当的状态，能够稳定铸造的运转，另外，具有令人满意的表面清洁度的外炉碳钢板可以获得。版权所有（C）2009，JPO＆INPIT

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