公开(公告)号：JP2002371310A

公开(公告)日：2002-12-26

申请号：JP2001181991

申请日：2001-06-15

申请人： Kawasaki Steel Corp ,  川崎製鉄株式会社

发明人： TSURUMARU YASUSHI ,  ASAHINA TAKESHI ,  SUDA MAMORU ,  FUJIMURA TOSHIO ,  NOMURA HIROSHI

IPC分类号： C21C1/02

摘要： PROBLEM TO BE SOLVED: To provide a method of desulfurizing molten iron alloy, which efficiently and inexpensively desulfurizes the molten iron alloy, even when a quantity of solid material for generating hydrocarbon is less than conventional one.
SOLUTION: The method for desulfurizing the molten iron alloy is characterized by mixing a toner powder with a desulfuring agent, when blowing the desulfuring agent with a carrier gas, into the molten iron alloy retained in a torpedo car through a tubular lance.
COPYRIGHT: (C)2003,JPO

摘要翻译： 要解决的问题：即使当用于产生烃的固体材料的量少于常规时，提供一种使铁水合金脱硫有效且廉价地脱硫的方法。 解决方案：将铁水合金脱硫的方法的特征在于，当通过载气气体吹入脱硫剂时，将调色剂粉末与脱硫剂混合，通过管状喷枪将残留在鱼雷车中的铁水合金混合。

公开(公告)号：JP2003055707A

公开(公告)日：2003-02-26

申请号：JP2001243388

申请日：2001-08-10

申请人： Kawasaki Steel Corp ,  川崎製鉄株式会社

发明人： HASHIMOTO MASAYUKI ,  KIKUCHI NAOKI ,  OSANAI HISASHI ,  FUJIMURA TOSHIO ,  NOMURA HIROSHI

IPC分类号： C21C5/35 ,  C21C1/02 ,  C21C5/36

摘要： PROBLEM TO BE SOLVED: To provide a hot metal pre-treatment method by which a hot metal suitable for refining a molten steel having excellent dephosphorizing oxygen efficiency and the phosphor concentration of =20 kg/t, and the oxygen quantity of the sintered ore brought in the hot metal is limited in a predetermined range so as to satisfy the range of the ratio of the sintered ore to oxygen defined by the inequalities of 30%

摘要翻译： 要解决的问题：提供一种热熔金属预处理方法，通过该方法可以不使用萤石或碱的氯化物来供给适合于精炼具有优异的脱磷氧效率和<= 200ppm的磷浓度的钢水的热金属 金属。 解决方案：在用具有顶部吹气功能的转炉保持的热金属中加入澄清剂的热金属预处理方法中，通过用气体搅拌热金属使铁水脱磷 从转炉底部的风口吹入氧气，将精制剂的一部分的烧结矿粒度为2-5mm的烧结矿用于> 20kg / t，烧结后的氧气量 导入铁水的矿石被限制在预定范围内，以满足由不等式为30％<= A /（A + B）×100 <= 60％而定义的烧结矿与氧的比例的范围， 其中A /（A + B）×100是烧结矿与氧的比例（％），A（=烧结矿的单位消耗量（kg / t）×0.17）是烧结矿中的氧含量，B（= 气态氧的单位消耗量（m3标准条件/（t））是在金属热量中吹入的气态氧的量）。

公开(公告)号：JP2003080354A

公开(公告)日：2003-03-18

申请号：JP2001270442

申请日：2001-09-06

申请人： Kawasaki Steel Corp ,  川崎製鉄株式会社

发明人： YAMAZAKI HISAO ,  OSHIMA KENJI ,  FUJIMURA TOSHIO ,  NOMURA HIROSHI

IPC分类号： B22D11/115 ,  B22D11/04 ,  B22D11/11

摘要： PROBLEM TO BE SOLVED: To provide a continuously cast sound slab by simultaneously reducing the entrapment of mold powder at the upper part of a meniscus and the amount of inclusion entered into the inner part.
SOLUTION: When a steel is continuously cast while giving a moving magnetic field to molten steel at the lower part from the meniscus 10M of the molten steel 10 in a mold 20, a static magnetic field is given to the molten steel near the meniscus at the upper part from the moving magnetic field and also, the static magnetic field is given to the molten steel even at the lower part from nozzle spouting holes 22P at the lower part from the moving magnetic field.
COPYRIGHT: (C)2003,JPO

摘要翻译： 要解决的问题：通过同时减少弯液面上部的模具粉末的夹带和进入内部的夹杂物量来提供连续铸造的声音板坯。 解决方案：当在模具20中钢水从钢水10的弯液面10M向下部的钢水中连续铸造钢液时，在弯液面附近的钢水中施加静磁场 即使在来自移动磁场的下部的喷嘴喷出孔22P的下部，静电磁场也被施加给钢水。

公开(公告)号：JP2003071551A

公开(公告)日：2003-03-11

申请号：JP2001262032

申请日：2001-08-30

申请人： Kawasaki Steel Corp ,  川崎製鉄株式会社

发明人： YAMAZAKI HISAO ,  ABE TOSHIFUMI ,  FUJIMURA TOSHIO ,  NOMURA HIROSHI

IPC分类号： B22D11/12 ,  B23K7/06

摘要： PROBLEM TO BE SOLVED: To provide a technology for assuring surface quality of a continuously cast slab for strict application against a surface flaw.
SOLUTION: In the repairing method carried out in carrying the continuously cast slab to a rolling process, a continuously cast slab after overall fusion- grinding is test-ground, the situation of spark generation of the melting part observed at the time of the test-grinding is photographed, and according to the detected number of the sparks per unit area, final repairing of the continuously cast slab is carried out.
COPYRIGHT: (C)2003,JPO

摘要翻译： 要解决的问题：提供一种用于确保连续铸造的板坯的表面质量的技术，用于严格地应用于表面缺陷。 解决方案：在将连续铸造板坯进行轧制过程中进行的修复方法中，经过全面研磨后的连续铸造板坯进行了试验研磨，在试验时观察到熔化部件发生火花发生的情况， 研磨进行拍摄，根据检测到的每单位面积的火花数量，进行连铸坯的最终修补。

公开(公告)号：JP2003080357A

公开(公告)日：2003-03-18

申请号：JP2001275512

申请日：2001-09-11

申请人： Kawasaki Steel Corp ,  川崎製鉄株式会社

发明人： YAMAZAKI HISAO ,  OSHIMA KENJI ,  FUJIMURA TOSHIO ,  NOMURA HIROSHI

IPC分类号： G01B11/30 ,  B22D11/16 ,  G01N21/892

摘要： PROBLEM TO BE SOLVED: To provide a method for detecting surface flaw in a continuous casting with which a cast slab developing an opened longitudinal crack is prevented to flow out to a next process. SOLUTION: The surface 2a of the cast slab 2 is image-input with a camera 4 at any time, and a monitor 6 indicating this image is observed and judged whether or not the longitudinal crack W on the surface 2a exists. In the case of judging what the longitudinal crack W on the surface 2a exists, a torch shifting part 16 is shifted in the width direction and scarfing is vertically performed to the longitudinal crack W by hitting flame F toward the surface 2a of the cast slab 2 from the vertically upper part, with a torch part 14. Then, the state of the flame F hit to the longitudinal crack W is image-input with a camera 10 at any time, and a monitor 12 indicating this image, is observed and it is judged whether or not the flame F hit to the longitudinal crack W is disturbed.

摘要翻译： 要解决的问题：提供一种用于检测连续铸造中的表面缺陷的方法，通过该连续铸造，防止展开开放的纵向裂纹的铸造板坯流出到下一个工艺。 解决方案：铸造板2的表面2a随时用照相机4进行图像输入，并且观察指示该图像的监视器6，并判断表面2a上的纵向裂纹W是否存在。 在判断表面2a上的纵向裂纹W是否存在的情况下，割炬移动部16在宽度方向上移动，并且通过对铸坯2的表面2a施加火焰F而向纵向裂纹W垂直地进行切割 然后，在任何时候，用照相机10对与纵向裂纹W相撞的火焰F的状态进行图像输入，并且观察到指示该图像的监视器12，并且， 判断击中纵向裂纹W的火焰F是否受到干扰。

公开(公告)号：JPS5916936A

公开(公告)日：1984-01-28

申请号：JP12628782

申请日：1982-07-20

申请人： Kawasaki Steel Corp

发明人： OGUCHI MASAO ,  SUMITA NORIO ,  FUJII TETSUYA ,  EMI TOSHIHIKO ,  FUJIMURA TOSHIO ,  UEDA ARATA

IPC分类号： C22B9/00 ,  C21C7/00 ,  C21C7/10 ,  F27D27/00

摘要： PURPOSE: To obtain the dipping suction pipe which can discharge a molten metal bath at a sufficiently high speed, by providing an opening for a cold current at the side of the immersed end of a tubular refractory material for sucking-up and discharging a molten metal bath, and specifying the length and the caliber of said opening for a cold current.
CONSTITUTION: A tubular refractory material 2 is immersed in a molten metal bath, and the molten metal bath is sucked up and discharged by the evacuating and pressurizing operation. An opening 6 for a cold current having length l
1 and a caliber d
1 is provided at the immersed end of said tubular refractory material 2. The caliber d
2 of the sucking-up cylinder 7 of the tubular refractory material 2 adjacent to said opening 6 for a cold current is made uniform up to the maximum height l
2 of the molten metal bath 8 to be sucked up. The length l
1 and the caliber d
1 of the opening 6 for a cold current are set as follows; l
1 /l
2 >0.2 and d
1 /d
2 =0.5W0.96. Thus, the molten metal bath 8 can be discharged at a sufficiently high speed during pressing the tubular refractory material 2, but the upper surface of the column of said molten metal bath does not reach the lower end of the tubular refractory material 2.
COPYRIGHT: (C)1984,JPO&Japio

摘要翻译： 目的：为了获得能够以足够高的速度排出熔融金属浴的浸渍吸管，通过在用于吸入和排出熔融金属的管状耐火材料的浸入端侧设置冷电流开口 浴，并指定所述开口的冷流的长度和口径。 构成：将管状耐火材料2浸渍在熔融金属浴中，通过抽真空加压操作吸入熔融金属浴并排出。 在管状耐火材料2的浸入端设置有长度为l1和口径d1的冷流的开口6。与所述管状耐火材料2的所述开口6相邻的管状耐火材料2的吸入缸7的口径d2 冷却电流被均匀化直到要吸入的熔融金属浴8的最大高度l2。 冷流的开口6的长度l1和口径d1如下设定; l1 / l2> 0.2和d1 / d2 = 0.5-0.96。 因此，在压制管状耐火材料2的过程中，可以以足够高的速度排出熔融金属浴8，但是熔融金属浴的塔的上表面没有到达管状耐火材料2的下端。

公开(公告)号：JPS5916931A

公开(公告)日：1984-01-28

申请号：JP12628282

申请日：1982-07-20

申请人： Kawasaki Steel Corp

发明人： SUMITA NORIO ,  OGUCHI MASAO ,  FUJII TETSUYA ,  EMI TOSHIHIKO ,  FUJIMURA TOSHIO ,  UEDA ARATA ,  ORITO KENICHI

IPC分类号： C22B9/00 ,  C21C1/10 ,  C21C7/00 ,  C21C7/10 ,  F27D27/00

摘要： PURPOSE: To effectively inhibit the formation of splashes inside a tubular refractory material, by gradually raising the speed of changing internal pressure inside the tubular refractory material in the step of sucking-up molten metal from the starting point toward the terminal of said step to control the sucking- up.
CONSTITUTION: In agitatively refining molten metal 3 in a refining vessel by immersing the lower end of a tubular refractory material 1 into said molten metal 3 and alternately repeating evacuation, and pressurization to repeat sucking-up and vomitting, a plurality of switch valves #1, 2, 3, 4... n parallelly connected to an exhaust system are provided between the top part of the tubular refractory material 1 and an evacuating pump 2. Driving commands 5 are dispatched in response to the output of a detector 6 for detecting internal pressure inside the tubular refractory material 1 by a computer 7 to sequentially open the switch valves #1, 2, 3, 4... n in order to gradually raise the speed of changing the internal pressure with the advance from the starting point to the terminal of the sucking-up. Thus, there exists no possibility of a functional disorder in the evacuating and pressurizing systems.
COPYRIGHT: (C)1984,JPO&Japio

摘要翻译： 目的：为了有效地抑制管状耐火材料内的飞溅物的形成，通过在从起始点朝向所述台阶的末端吸入熔融金属的步骤中逐渐提高管状耐火材料内部内部压力的变化速度，以控制 吸吮。 构成：通过将管状耐火材料1的下端浸渍到熔融金属3中并交替重复抽真空和加压以重复吸入和呕吐，在精炼容器中搅拌精炼熔融金属3，多个切换阀＃1 在管状耐火材料1的顶部和排气泵2之间设置有与排气系统平行连接的2,3,4 ... n。驱动指令5响应于用于检测的检测器6的输出而调度 通过计算机7在管状耐火材料1内部的内部压力，以顺序地打开切换阀＃1,2,3,4 ... n，以便逐渐地提高从起始点向前改变内部压力的速度 吮吸的终点。 因此，在排气和加压系统中不存在功能紊乱的可能性。

公开(公告)号：JPS5916930A

公开(公告)日：1984-01-28

申请号：JP12628182

申请日：1982-07-20

申请人： Kawasaki Steel Corp

发明人： SUMITA NORIO ,  OGUCHI MASAO ,  FUJII TETSUYA ,  EMI TOSHIHIKO ,  FUJIMURA TOSHIO ,  UEDA ARATA ,  ORITO KENICHI

IPC分类号： C22B9/00 ,  C21C7/00 ,  C21C7/10 ,  C22B9/04 ,  F27D27/00

摘要： PURPOSE: To effectively alleviate splashing inside a tubular refractory material, in immersing the lower end of the tubular refractory material into molten metal to alternately repeat evacuation and pressurizing, by specifying an evacuating speed and a time for the step of evacuation.
CONSTITUTION: The lower end of a tubular refractory material is immersed into the bath of molten metal received in a refining vessel, and evacuating and pressurizing are alternately repeated to perform agitative refining by sucking-up and vomitting. Hereon, the maximum and average values of a avacuating speed to be applied to the interior of the tubular refractory material are limited below 100 and 500mmHg/sec, respectively. In addition, a time for the step of said evacuation is made at least 1.5 times the intrinsic oscillation cycle of the vertical motion of a molten metal column inside the tubular refractory material, and one cycle is pref. made below 10sec.
COPYRIGHT: (C)1984,JPO&Japio

摘要翻译： 目的：为了有效地减轻管状耐火材料内的飞溅，将管状耐火材料的下端浸入熔融金属中，通过规定抽真空速度和撤离步骤的时间来交替地重复排气和加压。 构成：将管状耐火材料的下端浸入容纳在精炼容器中的熔融金属浴中，通过抽吸和呕吐交替重复进行抽真空加压以进行精炼。 在此，应用于管状耐火材料的内部的平均速度的最大值和平均值分别被限制在低于100和500mm.Hg / sec。 此外，所述抽空的步骤的时间为管状耐火材料内的熔融金属柱的垂直运动的固有振荡周期的至少1.5倍，优选为一个周期。 低于10秒。

公开(公告)号：JPS5925919A

公开(公告)日：1984-02-10

申请号：JP13366482

申请日：1982-08-02

申请人： Kawasaki Steel Corp

发明人： FUJIMURA TOSHIO

IPC分类号： C21C7/04 ,  C21C7/10

CPC分类号： C21C7/10

摘要： PURPOSE:To add efficiently desired elements into molten steel and to remove inclusions in a short time by admitting the molten steel in a ladle under pressure into a degassing device to flow the same cyclically and adding elements of high vapor pressure into the molten steel. CONSTITUTION:A ladle 2 in which molten steel is received is moved upward to immerse the reflux pipe 4 of an RH type degassing device into molten steel 3. The inside of a degassing vessel 1 is substd. with an inert gas, and the space 9 in the upper part of the ladle 2 is pressurized with the inert gas to admit the molten steel into the vessel 1. An inert gas is blown through the pipe 4 into the vessel 1 to apply reflux power on the molten steel therein. Additive elements of high vapor pressure such as Ca, Cs, Ng or the like are added from the upper part of the vessel 1 under continuation of the above-mentioned treatment. The pressure in the vessel 1 is maintained under atmospheric pressure or pressure during the addition. The additive alloys are included into the reflux flow of the molten steel and are efficiently incorporated therein.

摘要翻译： 目的：通过将钢包中的钢水在压力下加入脱气装置中，使钢水中的所需元素有效地添加到钢水中，并在短时间内除去夹杂物，使其循环流动，并向钢水中加入高蒸气压元素。 构成：将钢水接收的钢包2向上方移动，将RH型脱气装置的回流管4浸渍到钢水3中。脱气容器1的内部被划分。 使用惰性气体，并且用惰性气体对钢包2上部的空间9进行加压以允许钢水进入容器1.惰性气体通过管道4吹入容器1中以施加回流力 在其中的钢水上。 在上述处理的继续下，从容器1的上部加入高蒸气压的添加剂如Ca，Cs，Ng等。 在添加期间，容器1中的压力保持在大气压或压力下。 添加剂合金被包括在钢水的回流中，并被有效地并入其中。

公开(公告)号：JPS5916935A

公开(公告)日：1984-01-28

申请号：JP12628682

申请日：1982-07-20

申请人： Kawasaki Steel Corp

发明人： OGUCHI MASAO ,  SUMITA NORIO ,  FUJII TETSUYA ,  EMI TOSHIHIKO ,  FUJIMURA TOSHIO ,  UEDA ARATA

IPC分类号： C22B9/00 ,  C21C7/00 ,  C21C7/10 ,  F27D27/00

摘要： PURPOSE: To improve the efficiency of agitation, while prolonging the life of a tubular refractory material for sucking up and discharging molten metal, by specifying the inner diameter of said tubular refractory material and its depth to be immersed into the molten metal bath, and further specifying the amount of the molten metal bath to be received in response to said inner diameter.
CONSTITUTION: A molten metal bath 1 in a refining vessel is agitatively refined by pumping up and discharging it with a tubular refractory material 2 through an evacuating-pressurizing system 4. The tubular refractory material 2 having a lower domain 6 reinforced with a tubular core bar 5 is connected to an outer surrounding iron plate 7 at an upper part with a flange. The inner diameter d of the tubular refractory material 2 is made below 1,000mm, and the amount W(t) of the molten metal to be received is determined in response to said inner diameter d according to d/W×0.5≤30. In addition, the depth h of the tubular refractory material 2 immersed in the molten metal bath 1 is held in the range of 200W700mm.
COPYRIGHT: (C)1984,JPO&Japio

摘要翻译： 目的：为了提高搅拌效率，同时延长用于吸入和排出熔融金属的管状耐火材料的寿命，通过规定所述管状耐火材料的内径及其浸入熔融金属浴的深度，以及进一步 指定响应于所述内径而接收的熔融金属浴的量。 构成：在精炼容器中的熔融金属浴1通过泵送并通过排气加压系统4用管状耐火材料2排出而被搅拌精炼。管状耐火材料2具有用管状芯棒 5在具有凸缘的上部连接到外围铁板7。 管状耐火材料2的内径d在1,000mm以下，并且根据d / WX0.5 <= 30，根据所述内径d来确定待接收的熔融金属的量W（t） 。 此外，浸入熔融金属浴1中的管状耐火材料2的深度h保持在200-700mm的范围内。