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1. 发明专利

JPH0586451A VACUUM PLASMA THERMAL SPRAYING METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JPH0586451A
公开(公告)日：1993-04-06
申请号：JP24894891
申请日：1991-09-27
申请人： NIPPON STEEL CORP
发明人： ITO MICHITOSHI , TAKEUCHI JUN
IPC分类号： C23C4/02 , C23C4/12
摘要： PURPOSE:To shorten a pretreatment stage for vacuum plasma thermal spraying and to reduce the consumption of gas by using the electrode installed in a vacuum chamber as anode and a base metallic material as cathode and generating a DC arc discharge in a vacuum between both electrodes. CONSTITUTION:The base metallic material 5 and a plasma thermal spraying gun 2 are disposed to face each other in a reduced pressure vessel 1 to be evacuated to a vacuum. The plasma from a plasma generating source 3 and the thermal spraying powder material from a powder feeder 9 are supplied to this thermal spraying gun 2. A thermally sprayed layer is formed on the above-mentioned base metallic material 5 in this way. The surface of the base metallic material 5 is previously cleaned prior to the execution of the above-mentioned thermal spraying in this vacuum plasma thermal spraying method. The electrode 4 is disposed in the above-mentioned vessel 1 and the DC voltage is impressed from a power source 7 in the vacuum by using the electrode 4 as the anode and the base metallic material 5 as the cathode. The DC arc discharge is generated between both electrodes in this way and the entire part of the surface of the base material 5 is cleaned without generating erosion by utilizing the electric shock-like evaporation effect thereof.

2. 发明专利

JPH02236265A FORMATION OF EROSION RESISTANT COATING LAYER OF TURBINE VANE 失效
公开(公告)号：JPH02236265A
公开(公告)日：1990-09-19
申请号：JP5487589
申请日：1989-03-09
申请人： NIPPON STEEL CORP , CHUBU ELECTRIC POWER
发明人： ITO MICHITOSHI , TAKEDA KOICHI , SUDO KATSUJI , SAWA SHIZUO , KAZAMA KOICHI
IPC分类号： F01D5/28 , C23C4/06
摘要： PURPOSE:To form a coating layer having excellent erosion resistance on steam turbine vanes by holding the turbine vanes at a specific temp. and subjecting the surface thereof to plasma thermal spraying of alloy powder having a specific compsn. under a reduced pressure, thereby forming the thermally sprayed coating layer of specific porosity. CONSTITUTION:While the temp. of the vanes of a steam turbine is held at 300 to 800 deg.C, the thermally sprayed coating layer of

3. 发明专利

JPH02199021A PRODUCTION OF FINE GRANULES OF SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPH02199021A
公开(公告)日：1990-08-07
申请号：JP1633489
申请日：1989-01-27
申请人： NIPPON STEEL CORP
发明人： TAKEUCHI JUN , ITO MICHITOSHI , TAKEDA KOICHI
IPC分类号： C01G3/00 , C01G1/00 , H01B12/00 , H01B13/00 , H01L39/24
摘要： PURPOSE:To obtain the title Y-Ba-Cu-O-based fine granules of uniform composition through the plasma evaporation process by each specifying the composition of evaporation raw material powder and the molar ratio of the Cu plus Ba to the O2, Ar, Y, Ba and Cu to be fed into a plasma reactor. CONSTITUTION:An evaporation raw material powder consisting of raw powder having a composition of YBa2Cu3O7-x or mixed powder of Y, Ba and Cu at the molar ratio 1:2:3 is fed into a plasma reactor in such a manner as to be 2.1-5mol% of the Cu plus Ba in the total of the oxygen, argon, Y, Ba and Cu to be fed per unit time into the reactor, thus obtaining the objective fine granules of Y-Ba-Cu-O-based superconducting material through the plasma evaporation process. The fine granules are calcined and sintered to produce a sintered compact with high critical current density.

4. 发明专利

JPS6130260A Molten metal pouring device for twin-roll casting 失效
标题翻译：用于双辊铸造的金属浸轧装置
公开(公告)号：JPS6130260A
公开(公告)日：1986-02-12
申请号：JP15138784
申请日：1984-07-23
申请人： Nippon Steel Corp
发明人： KASAMA AKIO , ITO MICHITOSHI , SUKAI TETSUYA , MIZOGUCHI SHOZO
IPC分类号： B22D11/06
CPC分类号： B22D11/064
摘要： PURPOSE:To provide a titled device which improves the characteristic of a billet by placing a box-shaped side flask with bottom members having the curved surfaces conforming to the roll surfaces of approximately the same length and having an apeture in the middle between a pair of horizontal rotating and casting rolls and maintaining the position where the solidification of the molten metal starts alway below the molten metal surface. CONSTITUTION:The molten metal 3 poured through an immersion nozzle 1 into a flapper nozzle 2 flows out onto the surfaces of the horizontal rotating and casting roll pair 4 through the molten metal outflow aperture 6 between the bottom members 2B having the curves surfaces conforming to the surface of said roll pair 4. The solidification of the molten metal 3 starts always from the roll surfaces at the bottom end of the aperture 6. The intrusion of the molten metal to the molten metal surface part is thus eliminated and the characteristic of the billet is improved.
摘要翻译：目的：提供一种标题装置，其通过将具有与大致相同长度的辊表面相符的曲面的底部构件放置在箱形侧烧瓶中，并且在中间具有一对水平旋转和铸造辊并保持熔融金属凝固的位置在熔融金属表面下方开始。构成：通过浸入式喷嘴1浇注到挡板喷嘴2中的熔融金属3通过熔融金属流出孔6流出到水平旋转铸造辊对4的表面上，底部件2B具有符合所述辊对4的表面。熔融金属3的固化始终始于孔6的底端处的辊表面。因此消除了熔融金属侵入熔融金属表面部分的侵入，并且钢坯的特性改进了

5. 发明专利

JPH03193859A STRUCTURAL MATERIAL OF TI-AL INTERMETALLIC COMPOUND IMPROVED IN OXIDATION RESISTANCE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH03193859A
公开(公告)日：1991-08-23
申请号：JP33109189
申请日：1989-12-22
申请人： NIPPON STEEL CORP
发明人： ITO MICHITOSHI , MASAHASHI NAOYA , MATSUO SOJI
IPC分类号： C23C4/08
摘要： PURPOSE:To improve the high-temp. oxidation resistance of the structural member consisting of a Ti3Al or TiAl intermetallic compd. by forming the film of Al3Ti or Al on the surface of the above-mentioned structural member by a reduced pressure plasma thermal spraying method. CONSTITUTION:The powder of the Al2Ti or Al is thermally sprayed by the reduced pressure plasma thermal spraying method to form the film on the surface of the structural member consisting of the intermetallic compd. having the compsn. of the Ti3Al or TiAl, etc. The low oxidation resistance at a high temp. which is the drawback of the intermetallic compd. of the Ti3Al, TiAl, etc., is considerably improved without impairing the excellent high-temp. strength and creep characteristic intrinsic to the intermetallic compd.

6. 发明专利

JPH02243754A PRODUCTION OF GRAIN-ORIENTED SILICON STEEL SHEET REDUCED IN IRON LOSS 失效
公开(公告)号：JPH02243754A
公开(公告)日：1990-09-27
申请号：JP6298589
申请日：1989-03-15
申请人： NIPPON STEEL CORP
发明人： KOBAYASHI TAKASHI , FUJII HIROYASU , ITO MICHITOSHI , HASHIMOTO MISAO
IPC分类号： C23C4/10 , C23C4/12
摘要： PURPOSE:To industrially produce a grain-oriented silicon steel sheet minimal in iron loss value at a low cost by forming an oxide film on the smoothed ferrite surface of a finish-annealed grain-oriented silicon steel sheet by means of low pressure plasma spraying. CONSTITUTION:A steel slab containing

7. 发明专利

JPS63318021A MANUFACTURE OF OXIDE SUPERCONDUCTOR 失效
公开(公告)号：JPS63318021A
公开(公告)日：1988-12-26
申请号：JP15150287
申请日：1987-06-19
申请人： NIPPON STEEL CORP
发明人： MURAKAMI MASAHITO , ITO MICHITOSHI , TAKEDA KOICHI , TEJIMA HIDEKAZU
IPC分类号： H01B12/06 , H01B13/00 , H01L39/12
摘要： PURPOSE:To provide a superconductor of oxide type in the form of final or intermediate product by fusion spraying a material to superconductive substance onto the surface of a base, which is substantially finished into shape and size of the final or intermediate product, forming thereby a primary film, baking it, and thus accomplishing a superconductive film. CONSTITUTION:Metal base is formed, which is finished substantially into the shape and size of a final or intermediate product, and material to superconductive substance is fusion sprayed onto the surface of this base to form a primary film, which is baked to accomplish a superconductive film. Therefore, superconductive film formed on the surface of the base can skip any processings which deteriorate superconductivity, and the superconductive film of the final or intermediate product can retain the superconductivity equipped through baking. Thereby superconductor in the form of final or intermediate product in various shapes and sizes can be yielded directly.

8. 发明专利

JPS6133736A Backup device of short side gate in twin roll type casting and rolling mill 失效
标题翻译：双辊式铸造和轧制机的短闸门备份装置
公开(公告)号：JPS6133736A
公开(公告)日：1986-02-17
申请号：JP15321784
申请日：1984-07-25
申请人： Nippon Steel Corp
发明人： SUKAI TETSUYA , ITO MICHITOSHI , KASAMA AKIO , KIKUCHI TOSHIJI
IPC分类号： B22D11/06 , B22D11/10
摘要： PURPOSE: To provide a titled device which eliminates the injury by penetration of a molten metal and increases the degree of freedom of the material for short side gates by forming part of the outside shape of lubricative blocks to be pressed to the end faces of the respective rolls of a twin roll casting machine into the extended surface of the roll outside circumference and inserting the short side gates thereto in contact therewith.
CONSTITUTION: Part of the outside surface of each block 1 which is pressed by means of a stay 5 and supporting bar 3 to the end face of each roll 8 of a twin roll type casting and rolling mill and consists of a lubricative solid material such as soft graphite is made into a cylindrical surface 14 conforming to the extension of the roll outside circumferential surface. The short side gates 10 are fitted and inserted to such surfaces 14 in contact therewith. The penetration of the molten metal is prevented by the tight contact between the blocks 1 and the roll end faces, by which the degree of freedom in selecting the material for the gates 10 requiring heat resistance and heat insulating characteristic is increased.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：提供一种标题装置，其通过使熔融金属的穿透消除损伤，并且通过将要被按压的润滑块的外部形状的一部分形成在相应的端面上来增加短边门的材料的自由度将双辊铸造机的辊卷入辊外周的延伸表面，并将短边浇口与其接触。构成：通过支撑杆5和支撑杆3将两个块1的外表面的一部分压在双辊型铸轧机的每个辊8的端面上，并由润滑固体材料软石墨被制成符合辊外周表面的延伸的圆柱形表面14。短边门10装配并插入到与其接触的这样的表面14上。通过块体1和辊端面之间的紧密接触来防止熔融金属的穿透，由此选择需要耐热性和隔热特性的浇口10的材料的自由度增加。

9. 发明专利

JPS6015683B2 失效
公开(公告)号：JPS6015683B2
公开(公告)日：1985-04-20
申请号：JP7615476
申请日：1976-06-28
申请人： NIPPON STEEL CORP
发明人： KATAYAMA HIROYUKI , NAKAMURA YASUSHI , HARASHIMA KAZUMI , ITO MICHITOSHI
IPC分类号： C21C7/076 , C22B9/10 , C22C1/06

10. 发明专利

JPS5934768B2 JPS5934768B2 - 失效
公开(公告)号：JPS5934768B2
公开(公告)日：1984-08-24
申请号：JP7083776
申请日：1976-06-16
申请人： Nippon Steel Corp
发明人： KATAYAMA HIROYUKI , INATOMI MINORU , HARASHIMA KAZUMI , ITO MICHITOSHI
IPC分类号： C21C7/076 , C21C7/064
CPC分类号： C21C7/064

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