专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH1176823A SLURRY CATALYST FOR DECOMPOSING HEAVY HYDROCARBON AND ITS MANUFACTURE 失效
公开(公告)号：JPH1176823A
公开(公告)日：1999-03-23
申请号：JP25261097
申请日：1997-09-03
申请人： ASAHI CHEMICAL IND , NIPPON STEEL CORP , MITSUI SEKITAN EKIKA KK
发明人： KAI SADA , HAYASHI SHIGEYOSHI , SAKURAI MASAAKI , ASO TATSUJI , IGUCHI KENJI
IPC分类号： B01J23/745 , B01J27/043 , C10G1/06 , C10G1/08 , C10G47/06
摘要： PROBLEM TO BE SOLVED: To provide a slurry catalyst and its preparation method wherein an iron compound (a catalytic active constituent) is prevented from growing during reaction, and further high activity is provided in coal liquefaction or heavy oil hydrogenation decomposing reaction. SOLUTION: In oil of 40 to 60 wt.% total amount wherein a mixture of coal and an iron compound catalyst of which d50 (50% particle size of cumulative distribution of volume standard of secondary particle in which primary particle is aggregated) is 20 to 30 μm, is mixed in oil, they are crushed and ground together until an average particle size of the coal becomes 20 μm or under. Thereby, a slurry catalyst for decomposing heavy hydrocarbon wherein the decomposed crushed iron compound is stuck in a thin film state onto a surface of the coal finely dispersed in the oil, can be manufactured.

2. 发明专利

JP2001328886A HIGHLY SERVICEABLE HEAT-INSULATING MATERIAL AND METHOD FOR PRODUCING THE SAME AND USE THEREOF AND METHOD FOR WORKING THE SAME 失效
公开(公告)号：JP2001328886A
公开(公告)日：2001-11-27
申请号：JP2000148170
申请日：2000-05-19
申请人： NIPPON STEEL CORP , KUROSAKI HARIMA CORP
发明人： MATSUI TAIJIRO , IMAGAWA HIROSHI , KAYAMA TSUNEO , ASO TATSUJI , HONDA KAZUHIRO , MATSUO MASATAKA
IPC分类号： E21D11/38 , A62C2/00 , B32B5/02 , B32B9/00 , C04B32/00 , C04B38/00 , C04B41/50 , C04B41/52 , C04B41/87 , F27D1/00 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide a refractory heat-insulating material excellent in heat resistance, slag resistance, molten iron resistance, wear resistance and mechanical impact resistance. SOLUTION: This highly serviceable heat-insulating material is characterized by having a thermal spraying refractory ceramic film via a surface curing material coating film on the surface of inorganic heat-insulating fibers furnished with a cloth material, or the surface of inorganic heat-insulating fibers having been furnished with a cloth material until it is burned and gone by the flame spraying of a refractory ceramic powdery material during the process for producing the heat-insulating material.

3. 发明专利

JPH08218115A CARBON ROLL HAVING HIGH STRENGTH AND HIGH WEAR RESISTANCE AND EXCELLENT IN COPYING PROPERTY AND ITS PRODUCTION 失效
公开(公告)号：JPH08218115A
公开(公告)日：1996-08-27
申请号：JP2280395
申请日：1995-02-10
申请人： NIPPON STEEL CORP
发明人： KURISU YASUSHI , ASO TATSUJI , YAMAJI CHIHIRO , HIROTA YOSHIAKI , YAMAGATA SHOJI , NAGASE TAKAO , FUKUYAMA MASARU
IPC分类号： B21B39/00 , C21D1/00 , C21D1/40 , C21D9/56
摘要： PURPOSE: To produce a carbon roll with a long service life having high strength and high wear resistance, furthermore excellent in copying properties and excellent in steel sheet conveying properties at the time of high temp. or electric heating. CONSTITUTION: The outer circumference of a roll in which the barrel part is formed of carbon 3 is provided with a metallic layer 4 of 1 to 5mm thickness formed by thermal spraying or the shrinkage fitting of a metallic sleeve, and moreover, the surface of the metallic layer 4 is provided with a topmost surface layer 6 of 0.1 to 0.5mm thickness constituted of ceramics or cermet. By using this for a conveying roll for a steel sheet continuous heat treating furnace, the prevention of deterioration in the sheet shape, the prevention of the generation of meandering are made possible, and, as for a roll for energizing, the generation of sparks caused by deterioration in the contact can be prevented.

4. 发明专利

JPH06312246A METHOD AND APPARATUS FOR CONTINUOUSLY CASTING DOUBLE LAYERED CAST SLAB 失效
公开(公告)号：JPH06312246A
公开(公告)日：1994-11-08
申请号：JP12462293
申请日：1993-04-30
申请人： NIPPON STEEL CORP
发明人： IWAMOTO TORU , TAKEUCHI EIICHI , HISATOMI RYOICHI , ASO TATSUJI
IPC分类号： B22D11/00 , B22D11/04 , B22D11/10 , B22D11/115
摘要： PURPOSE:To obtain a double layered cast slab having high separability between steel components in a surface layer and an inner layer by arranging a nozzle having seamless and integrated structure as the nozzle for surface layer and supplying molten steel into molten steel pool at the upper side through this nozzle. CONSTITUTION:By impressing DC magnetic field across the thickness of the cast slab to the molten steel in a continuous casting mold 1 at the lower position from a meniscus, Dc magnetic field zone is formed. The molten steels different in composition are supplied into the molten steel pool 4 at the upper side and the molten steel pool 5 at the lower side divided with the DC magnetic field zone with two nozzles 2, 3 different in length, respectively and the solidification and the drawing are executed. In such a way, the double layered cast slab is formed from the steels different in composition. Then, as the nozzle for surface layer, the nozzle 2 having seamless and integrated structure is arranged and the molten steel is supplied into the molten steel pool 4 at the upper side through the nozzle 2. By this method, the variation of the pouring rate is prevented and the pouring quantity can be stabilized.

5. 发明专利

JPH04123845A CERAMIC BRAKE RING 失效
公开(公告)号：JPH04123845A
公开(公告)日：1992-04-23
申请号：JP24248490
申请日：1990-09-14
申请人： NIPPON STEEL CORP
发明人： KANEMATSU KINJI , ASO TATSUJI
IPC分类号： B22D11/04 , B22D11/10 , B22D41/54
摘要： PURPOSE:To obtain a ceramic brake ring restraining reaction with molten steel and improving casting time by containing Al2O3 in peculiar bores of the ceramic containing BN. CONSTITUTION:As a method for containing Al2O3 in the inherent bores in ceramic, aluminum hydroxide is used as precursor. The aluminum hydroxide is dissolved in aqueous ammonia and vacuum-impregnated into the brake ring and after that, by using acetic acid, this is neutralized, and gelling aluminum hydroxide is precipitated into the ceramic bore. After drying and heating such material, BN particles are coated with film of porous Al2O3. After repeating the above impregnation, drying and heating three times, finishing heating is executed to make close structure of the porous Al2O3 film. Then, machining is executed to the above prescribed finishing shape. By using the ceramic brake ring 5 thus obtained, the erosion at a part where reacts with the molten steel is remarkably restrained and the continuous casting is executed for long time in comparison with the conventional brake ring.

6. 发明专利

JPS6144137A Ferruginous conglomerated grain by product generated from direct reduction iron making mill 失效
标题翻译：由直接还原铁制造的产品产生的致癌颗粒
公开(公告)号：JPS6144137A
公开(公告)日：1986-03-03
申请号：JP16719184
申请日：1984-08-08
申请人： Nippon Steel Corp , Yoshikawa Kogyo Kk
发明人： TAKEMURA TETSUO , MITSUIDA MANKIYUU , KUME SHOICHI , YODA JIHEI , ASO TATSUJI , YAMAGUCHI MASAKAZU , BABA HIDEAKI , MASUMOTO SEIJI , AYABE NOBURO
IPC分类号： C22B7/00 , C22B7/04
CPC分类号： Y02P10/242
摘要： PURPOSE: To obtain ferruginous conglomerated grains having substantial strength as an iron source by compounding cement with the powder dust generated in a reduction stage for ferruginous raw materials, pelletizing the mixture and curing and drying the conglomerated grains by means utilizing the waste gas of a reduction furnace.
CONSTITUTION: The quicklime powder captured in a place where quicklime powder is generated is added to the sludge 3 captured by a dust collector 2 from the inside of the waste gas of the reduction furnace 1 and further the cement is added thereto; thereafter, the mixture is passed through a humidity controller 4 and is pelletized by a disk pelletizer 5. The pellets P
1 are charged into a steam curing device 6 where the pellets are cured by the steam 10 generated by using part of the waste gas 7 from the reduction furnace as fuel and passed thereto from a steam generator 9. The cured pellets P
2 are charged into a carbonization dryer 11. On the other hand, the gaseous CO
2 7''' separated from the gas 7 by passing said gas through a CO
2 remover 8 is added to the combustion gas of the generator 9 to form the gas 13 enriched with CO
2 which is then passed through the dryer 11 and is brought into contact with the pellets P
2 . The pellets P
2 are thus dried and hardened together with the carbonization of the lime component.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过将水泥与在还原阶段产生的铁粉原料产生的粉末粉末混合，获得具有强大强度的铁质聚集体颗粒作为铁源，将混合物造粒，并通过利用还原废气固化和干燥聚集的颗粒炉。构成：将生石灰粉末捕获的生石灰粉末从还原炉1的废气的内部添加到由集尘器2捕获的污泥3，并且进一步添加水泥; 然后将混合物通过湿度调节器4，并通过圆盘造粒机5造粒。将颗粒P1装入蒸汽固化装置6中，其中颗粒通过使用部分废气7产生的蒸汽10固化，还原炉作为燃料并从蒸汽发生器9通过。将固化的颗粒P2装入碳化干燥器11.另一方面，通过使气体通过CO 2从气体7分离出的气态CO 2 7“ 去除剂8被添加到发生器9的燃烧气体中，以形成富含CO 2的气体13，然后将其通过干燥器11并与颗粒P2接触。因此，颗粒P2随着石灰组分的碳化而干燥和硬化。

7. 发明专利

JPH07232248A MATERIAL FOR FILLING FITTING PART OF NOZZLE FOR CONTINUOUSLY CASTING METAL AND FITTING METHOD 失效
公开(公告)号：JPH07232248A
公开(公告)日：1995-09-05
申请号：JP4993894
申请日：1994-02-24
申请人： NIPPON STEEL CORP
发明人： ASO TATSUJI
IPC分类号： B22D41/56 , B22D11/10 , C01B35/10 , C09K3/10
摘要： PURPOSE:To improve the air-tightness of a fitting part and to enable maintaining of the stable function even in the case of using a nozzle for a long time in a hot state by containing an oxide having the temp. becoming the specified viscosity in the temp. range from room temp. to the temp. of molten metal. CONSTITUTION:In the case of using the divided type pouring nozzle in a continuous casting process of the metal, a recessed part 2 at a part of the fitting surface of the fitted immersion nozzle or long nozzle 1B and a projecting part 3 on the fitting surface at the upper part of an upper nozzle 1A are arranged. At the time of fitting both nozzles 1A, 1B, filling material 8 is filled in a groove of the recessed part 2 arranged on the fitting surface at the immersion nozzle or long nozzle 1B side and after preheating, both nozzles are fitted. At this time, the oxide having the temp. becoming viscosity of 10 -10 poise in the temp. range from room temp. to the temp. of molten metal is contained in the filling material 8. Therefore, the gap of the fitting part is sealed with the filling material 8, and in this result, the air-tightness of the fitting position is improved.

8. 发明专利

JPH06297116A NOZZLE FOR CONTINUOUSLY CASTING METAL AND METHOD FOR POURING MOLTEN METAL USING ITS NOZZLE 失效
公开(公告)号：JPH06297116A
公开(公告)日：1994-10-25
申请号：JP11426193
申请日：1993-04-19
申请人： NIPPON STEEL CORP
发明人： IWAMOTO TORU , ASO TATSUJI , FUJI TAKEHIKO , ITOYAMA AKIRA
IPC分类号： B22D11/10 , B22D11/103 , B22D41/50
摘要： PURPOSE:To prevent the occurrence of troubles, such as the unstability of control for molten metal pouring rate, the contamination of the molten metal caused by involving with gas, by generating a meniscus of the molten metal in the inner part of a pouring nozzle and aggravating fluid condition, in the continuous casting by using the split type nozzle. CONSTITUTION:The nozzle for continuous casting is formed with an upper nozzle 1A at the bottom part of a tundish or a lower plate 2A of a sliding nozzle and an immersion nozzle 1B or 2B connected with the lower part of the above nozzle or plate and at the time of continuously casting the molten metal, while adjusting the supplying rate of the molten metal with a stopper device or a sliding nozzle device, the molten metal is continuously poured into the mold. Then, gas vent adjusting holes are arranged to the upper nozzle 1A at the bottom part of the tundish or the lower plate 2A of the sliding nozzle and/or the immersion nozzle 1B or 2B. While discharging the gas retained in the upper part of an inner hole zone through the gas vent adjusting holes, the molten metal is poured into the mold.

9. 发明专利

JPH05302704A 失效
公开(公告)号：JPH05302704A
公开(公告)日：1993-11-16
申请号：JP10721992
申请日：1992-04-27
申请人： NIPPON STEEL CORP
发明人： ASO TATSUJI , KANEMATSU KINJI , YOSHIMURA TAKASHI , TAMURA MICHIO
IPC分类号： F23D14/12 , F23C3/00
摘要： PURPOSE:To unify temperature at the surface of an outer tube by providing a first burner having a number of fuel gas holes in the longitudinal direction of the tube and a second burner having fuel gas holes in tangential direction circumferentially. CONSTITUTION:To supply a first burner, pipes are extended from outlet ports 21 in a fuel gas header and the fuel gas holes 26 at their downstream ends are formed in the longitudinal direction of the tube and at regular intervals of 40 deg. circumferentially; air holes 25 are formed one between adjacent fuel gas pipes, i.e., at regular intervals of 40 deg.. To supply a second burner, a fuel gas hole 29 is formed to feed a flow of fuel gas 8 and air 9 passing an ignition plug 16 and designed to send the flow in a direction tangent to a circumference of a heat-insulating ring 12 and another fuel gas hole 29 is formed exclusively to feed fuel gas 8 and designed to send its flow in a direction tangent to the circumference of the heat-insulating ring 12. Consequently, uniformity can be attained in the temperature in the longitudinal direction of the tube.

10. 发明专利

JPH05209299A INSOLUBLE ELECTRODE AND ITS PRODUCTION 失效
公开(公告)号：JPH05209299A
公开(公告)日：1993-08-20
申请号：JP3584392
申请日：1992-01-28
申请人： NIPPON STEEL CORP
发明人： KURISU YASUSHI , ASO TATSUJI , KOBAYASHI MASANORI
IPC分类号： C23C28/00 , C25B11/08 , C25D17/10 , C25D17/12
摘要： PURPOSE:To provide an insoluble electrode, excellent in corrosion resistance even in the case of electrolysis with high current density and durable in a long use, and the producing method thereof. CONSTITUTION:A valve metal layer 2 is formed on the surface of an electrode base material 1 and the insoluble electrode has a valve metal 2 heat-treated at 400-800 deg.C for >=0.5hr and

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式