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1. 发明专利

JPH08151277A CASTING MATERIAL FOR LADLE 失效
公开(公告)号：JPH08151277A
公开(公告)日：1996-06-11
申请号：JP31585894
申请日：1994-11-25
申请人： SUMITOMO METAL IND , TOSHIBA CERAMICS CO
发明人： TERANISHI HISAHIRO , IMAI ISAO , UEMOTO HIDEO , MATSUO KAZUAKI , NAKAMURA NOBORU , KUWABARA AKIO , OGISO YUZO , ANDO MASAJI
IPC分类号： B22D41/02 , C04B35/66
摘要： PURPOSE: To obtain a casting material for a ladle that is a transferring vessel for molten steel and having excellent slag infiltration resistance and corrosion resistance as the casting material for a slag line by adding a carbonaceous raw material with a specific component. CONSTITUTION: This casting material for a ladle is composed of 80-98wt.% of a magnesia raw material and 2-20wt.% of a carbonaceous raw material, which are further mixed with 0.1-1.0wt.% of a basic aluminum lactate, 0.2-2wt.% of silica flour having particle diameters of

2. 发明专利

JPH07206511A MAGNESIA CLINKER, MONOLITHIC REFRACTORY AND LADLE FOR STEEL MAKING 失效
公开(公告)号：JPH07206511A
公开(公告)日：1995-08-08
申请号：JP35319093
申请日：1993-12-29
申请人： TOSHIBA CERAMICS CO , SUMITOMO METAL IND
发明人： IMAI ISAO , URAKAWA TETSURO , SASAKI MICHIO , UEMOTO HIDEO , SUGIYAMA TOMOYUKI , KIGUCHI HIROSHI , KUWABARA AKIO , MIKI TAKASHI , OGISO YUZO
IPC分类号： B22D41/02 , C04B35/043 , C04B35/66
摘要： PURPOSE:To obtain a magnesia clinker without damaging its original characteristics capable of remarkably improving the melt damage resistance and slag infiltration resistance to slag having high basicity as well as low basicity. CONSTITUTION:This magnesia clinker having a texture consisting of a periclase grain boundary phase filled with a zirconia phase and a spinel phase is obtained by using a chemical composition composed of 92-9wt.% of Mg0, 2-8wt.% of Al2O3+ZrO2 at an Al2O3:ZrO2 weight ratio of (0.5-4.0):1 (the Al2O3 content is

3. 发明专利

JPH08188814A PRODUCTION OF EXTREMELY LOW PHOSPHORUS HIGH NICKEL-CONTAINING IRON 失效
公开(公告)号：JPH08188814A
公开(公告)日：1996-07-23
申请号：JP30895
申请日：1995-01-05
申请人： SUMITOMO METAL IND
发明人： KAMIDA SUSUMU , OGISO YUZO
IPC分类号： C21C7/00 , C21C5/28 , C21C7/064
摘要： PURPOSE: To provide a method for effectively producing a pig iron having =4.5% Ni and a steel =9.0% Ni. CONSTITUTION: A preliminary desulfurized pig iron is poured into a desulfurizing furnace 1, and after charging the metallic nickel, the dephosphorized blowing is started, and an nickel oxide is charged at the end stage of blowing after completing silicon-blowing. After completing the dephosphorized blowing, the nickel oxide can be charged to prevent the rephosphorization. Further, after pouring the extremely low phosphorus high nickel-containing molten iron into a decarburizing furnace 2, the metallic nickel is charged and the decarburized blowing is started and the nickel oxide is charged at the end stage of blowing.

4. 发明专利

JPH08174203A DEVICE FOR MAINTAINING LADLE 失效
公开(公告)号：JPH08174203A
公开(公告)日：1996-07-09
申请号：JP32643794
申请日：1994-12-27
申请人： SUMITOMO METAL IND , SUMIKIN MANAG KK
发明人： SHINBASHI TAKESHI , TANAKA TATSUO , KIGUCHI HIROSHI , OGISO YUZO , MIYAMOTO MASAHITO , KAMINAKA MOTOFUMI
IPC分类号： B22D41/56 , B22D11/10 , B22D43/00
摘要： PURPOSE: To melt and remove the oxide and to secure the service life of a refractory by inserting a high temp. gas burner into a ladle and executing precession. CONSTITUTION: So sufficiently long high temp. gas burner 30 as to reach the bottom of the ladle 50 is inserted into the ladle 50. Ignition is executed to the burner 30 and the precession is executed to the burner 30 by driving burner swinging mechanism. The tip of the burner 20 is swung and the circular movement is executed to melt the stuck material of metal, slag, etc., around a pouring nozzle of the ladle 50. Even if the inner part of the ladle is low temp., since the ignition is executed by supplying fuel, this operation can be performed in no problem. Further, the oxide which is not expected to oxidizing reaction, can be melted. Then, since the production of FeO is not accompanied, the service life of the refractory is not shortened. Since the procession is executed to the burner 30 even if the flame of the burner 30 is small, the surrounding of the pouring nozzle can uniformly be heated.

5. 发明专利

JPH1112635A PRODUCTION OF LOW MANGANESE ALLOY 失效
公开(公告)号：JPH1112635A
公开(公告)日：1999-01-19
申请号：JP17164297
申请日：1997-06-27
申请人： SUMITOMO METAL IND
发明人： OGISO YUZO
IPC分类号： C21C7/00 , C22C1/02 , C22C33/04
摘要： PROBLEM TO BE SOLVED: To promote the vaporization of manganese from an alloy and to mass-produce a desired low manganese alloy by using a VOD furnace and adjusting the temp. of molten alloy and the vacuum degree in a furnace to suitable conditions after executing oxygen blowing to the molten low manganese alloy with adjusted C content. SOLUTION: A molten alloy containing manganese of about 0.12-0.15 wt.% obtd. by melting with an electric furnace or a converter, is treated by using a VOD furnace. After adjusting the carbon content in the molten alloy in the range of 0.01-0.05%, oxygen is blown. Successively, the temp. of the molten alloy is adjusted in the range of 1650-1750 deg.C and the vacuum treatment is executed by adjusting the vacuum degree in the furnace to

6. 发明专利

JPH10330828A TUYERE FOR MOLTEN METAL VESSEL 失效
公开(公告)号：JPH10330828A
公开(公告)日：1998-12-15
申请号：JP14873797
申请日：1997-06-06
申请人： SUMITOMO METAL IND
发明人： OGISO YUZO
IPC分类号： B22D41/00 , B22D11/10 , C21C7/072 , F27B3/22
摘要： PROBLEM TO BE SOLVED: To obtain a tuyere having long service life to oxygen flame washing work and low running cost by consisting a part of the lower part in the peripheral direction of the tuyrene for molten metal vessel of a reinforcing part composed of a refractory excellent in erosion resistance to FeO over the whole length of the axial direction. SOLUTION: The tuyere 1 for molten metal containing iron is constituted of the reinforcing part 1a composed of the refractory excellent in the erosion resistance to the FeO over the whole length of the axial direction in the whole body at a part (zone at θangle) of the lower part in the peripheral direction and non-reinforcing part 1b composed of a refractory excellent in heat shock resistance at the other part. As the refractory constituting the reinforcing part 1a, an alumina-magnesia-carbon, magnesia-chromite, etc., is used and the angle θis >= about 60 deg., desirably about 90-120 deg.. Further, the refractory constituting the non-reinforcing part 1b, alumina-magnesia, alumina-silicon carbide, etc., is used. By this constitution, as the tuyrene for molten metal tapping or for fitting blowing plug, the desirable tuyere is obtd.

7. 发明专利

JPH09141421A DEVICE FOR OPENING NOZZLE HOLE OF MOLTEN METAL VESSEL 失效
公开(公告)号：JPH09141421A
公开(公告)日：1997-06-03
申请号：JP31966795
申请日：1995-11-14
申请人： SUMITOMO METAL IND
发明人： TANAKA TATSUO , OGISO YUZO , TANAKA TERUO , NARITA YUJI , KIGUCHI HIROSHI
IPC分类号： B22D41/44
摘要： PROBLEM TO BE SOLVED: To safely, quickly and surely open a nozzle hole at the bottom part in a molten metal vessel, to reduce the erosion of a hole opening device and to reduce equipment cost and running cost. SOLUTION: A movable table 7 moved/back an forth by a fluid pressure cylinder 8 is arranged on an elevating table 2 elevated/lowered at a fixed stroke by a hydraulic cylinder and swung by motor driving. Thus, the thrust is applied to a nozzle hole opening rod 14 attached detachably to the top end of this movable table by the hydraulic cylinder while applying the hitting by a hitting device 11 arranged on the movable table.

8. 发明专利

JPH05339657A 失效
公开(公告)号：JPH05339657A
公开(公告)日：1993-12-21
申请号：JP14457392
申请日：1992-06-04
申请人： SUMITOMO METAL IND
发明人： OGISO YUZO
IPC分类号： C21C1/02 , C21C7/00 , C21C7/072 , C22B9/10
摘要： PURPOSE:To suppress the surface oscillation and splashing of a molten metal to be generated at the time of blowing powder and gas by providing a disk- shaped surface oscillation suppressing plate which is held in the lower part of the cap for out-of-furnace refining apart therefrom and has a lance passage. CONSTITUTION:The disk-shaped surface oscillation-suppressing plate 8 is connected to the conventional cap 2 for out-of-furnace refining apart therefrom. The lance passage 11 is opened in the central part of the surface oscillation- suppressing plate 8 and the circumference thereof is provided with, for example, two pieces of posts 9 connecting the surface oscillation suppressing plate 8 to the cap 2. If the surface oscillation-suppressing plate 8 is provided with gas blowing holes 10, the stirring of the molten metal 5 is intensified and, therefore, such provision is preferable. The length of the posts 9 is merely necessitated to be set approximately equal to the distance between the rear surface of the cap 2 for out-of-furnace refining and the surface of the molten metal 5 and is not particularly restricted. The surface oscillation suppressing plate 8 is so disposed and used as to be slightly immersed into the molten metal 5.

9. 发明专利

JP2008272790A Ingot production method by vacuum-arc melting process 有权
标题翻译：真空熔炼工艺的生产方法
公开(公告)号：JP2008272790A
公开(公告)日：2008-11-13
申请号：JP2007118823
申请日：2007-04-27
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： YAMANAKA AKIHIRO , OGISO YUZO
IPC分类号： B22D27/02 , B22D23/00
摘要： PROBLEM TO BE SOLVED: To provide an ingot production method by a vacuum-arc melting process which can efficiently shift to full-scale operation and enables large diameter ingot having directional solidification structure free from segregation defect to be produced at high production efficiency.
SOLUTION: The ingot production method by the vacuum-arc melting process is characterized in that the large diameter ingot having a diameter D
1 larger than a diameter D
0 of small diameter ingot which is cast by the vacuum-arc melting process is cast by the vacuum-arc melting process while a melting speed M
1 is adjusted so as to satisfy the expression of M
1 ≤(M
0max /D
0 )×D
1 , wherein D
0 denotes the upper limit of the melting speed providing directional solidification structure upon casting the small diameter ingot having the diameter of D
0 by the vacuum-arc melting process.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过真空电弧熔炼工艺提供一种可以有效地转变为全尺寸操作的锭生产方法，并且能够以高生产效率生产具有无偏析缺陷的定向凝固结构的大直径铸锭。解决方案：通过真空电弧熔化工艺的锭生产方法的特征在于，直径大于直径D 1 的直径大于直径D 0 通过真空电弧熔化工艺铸造的小直径铸锭通过真空电弧熔化工艺铸造，同时调节熔融速度M 1 ，以满足M 1 < / SB>≤（M 0max / D 0 ）×D 1 其中D 0 的熔化速度通过真空电弧熔化工艺浇铸直径为D 0 的小直径铸块，提供定向凝固结构。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JPH11254126A BEARING LOAD DEVICE OF SLIDE GATE 失效
公开(公告)号：JPH11254126A
公开(公告)日：1999-09-21
申请号：JP8255398
申请日：1998-03-13
申请人： SUMITOMO JUKIKAI CHUTAN KK , SUMITOMO METAL IND
发明人： SAIGO TADAO , SATO MITSUO , MATSUMOTO SHINTARO , OGISO YUZO
IPC分类号： B22D11/10 , B22D41/40
摘要： PROBLEM TO BE SOLVED: To release a bearing load with an other method not requiring a cost in the case a main cylinder is turned to inoperative by detachably arranging a bearing load imparting device which releases a bearing load with disengaging a slider from a main cylinder irrelevant to a sliding load of the slider. SOLUTION: When a bearing load is not released with using a cylinder 10, by demounting a bearing load link 33 and approaching an emergency bearing load release cylinder to a C shape bracket 5a of a housing end part, pins are inserted from an opening 5b. A distance between two pins is made equal to a distance of two pairs of the C shape brackets 5a, 32a, by turning the cylinder, the pins are accommodated in the C shape brackets 32a, by turning a working direction of two faces of the pins so as to align to a axial direction of the emergency bearing load releasing cylinder, the cylinder is mounted to a slide gate. When supplying a pressurized oil, a cylinder rod of the emergency bearing load releasing cylinder is retracted, a joining fixture 32 to joined thereto and a bearing load bar are moved a right side, the bearing load is released.

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