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1. 发明专利

JPS57134252A NOZZLE FOR CONTINUOUS CASTING 失效
公开(公告)号：JPS57134252A
公开(公告)日：1982-08-19
申请号：JP1754581
申请日：1981-02-10
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO
发明人： SHIBATA HIDETOSHI , TAKASHIMA TOSHIYASU , HATSUTA TOKUAKI , UENO HARUYUKI
IPC分类号： B22D11/10 , B22D41/50
摘要： PURPOSE:To improve the functional characteristic and material level of a nozzle for continuous casting and to make the nozzle less in wall thickness and high in accuracy by using nonoxide type ceramics of high strength and high toughness as a sleeve for holding the refractory for flowing of molten metal of said nozzle. CONSTITUTION:In a nozzle for continuous casting which transports molten metal from a molten metal vessel into a mold, nonoxide type high strength ceramics 4 of >=10kg/mm. bending strength are used as a sleeve for holding refractories 2 for flowing of the molten metal. The ceramics 4 are made of, for example, Si3N4- SiC composite sintered body or the like. Since the holder of the ceramics 4 give a gentle temp. gradient to the refractories 2 built therein and a ceramic breaker 3, thermal impact is relieved and the outside size thereof is reduced. In accordance with such nozzle, blooms and slabs of various sizes are cast without any defect by continuous casting.

2. 发明专利

JPH05187780A METHOD FOR FORMING REFRACTORY STRUCTURE 失效
公开(公告)号：JPH05187780A
公开(公告)日：1993-07-27
申请号：JP32743591
申请日：1991-12-11
申请人： KUROSAKI REFRACTORIES CO , KUROSAKI ROKOGYO KK
发明人： KATAOKA MINORU , UCHIDA YOSHIHIKO , TAKASHIMA TOSHIYASU , NAKAMURA YUKIO
IPC分类号： F27D1/10
摘要： PURPOSE:To effectively prevent unintentional separating and dropping of an unburned refractory material and to facilitate recovering of the refractory material by previously mounting studs on a board with organic adhesive, and then forming an indeterminate refractory material layer on the board by enclosing the studs. CONSTITUTION:A refractory structure is formed by lining an refractory material 1. In this case, if a board of the structure is, for example, an iron cover 3, a bonding part 4 made of organic adhesive is formed on the upper surface of the cover 3, and studs 2 are previously mounted thereon. Then, the material 1 is formed on the upper surface of the cover 3 by enclosing the studs 2. Thus, the material 1 is rigidly supported to the studs 2 thereby to effectively prevent separation of the material 1 from the cover 3. Accordingly, when the structure is formed, the material 1 can be lined safely even by a downward operation, and in the case of recovering, old material 1 can be easily collapsed.

3. 发明专利

JPS5689364A CONTINUOUS CASTING AND FEEDING METHOD OF IRON AND NOZZLE 失效
公开(公告)号：JPS5689364A
公开(公告)日：1981-07-20
申请号：JP16668679
申请日：1979-12-21
申请人： NIPPON STEEL CORP
发明人： SUGITA KIYOSHI , IZUMI SUSUMU , SHIBATA HIDETOSHI , TAKASHIMA TOSHIYASU
IPC分类号： B22D11/04 , B22D11/10 , B22D11/103
摘要： PURPOSE:To hold the rate of solidification of molten iron in a mold as uniform as possible by feeding the molten metal from the plural nozzle pipes arranged in parallel along the outlets punched in array to a header pipeline to the mold and adjusting the coarseness of the nozzle pipe arrangement. CONSTITUTION:The molten iron received in a header pipeline 3 is fed to a mold via the plural nozzle pipes 2 which communicate with the outlets 5 punched in array to the pipeline 3 and are arranged in parallel along the outlets 5. The coarseness of the pipe 2 arrangement is adjusted along with this feeding, whereby the distribution of the feed rate to each part in the mold is adjusted and the solidifying speed of the molten iron is made as uniform as possible. Namely, only the amount that can solidify is successively fed in response to the solidifying of the molten iron in the mold, and therefore, the space between the nozzle pipe 2 ends and the solidification line of the molten iron is maintained at an approximately straight line from both end edge parts up to the central part. Hence, the material over the entire surface of the striplike ingot is maintained uniformly over each part and since the entire surface is pressurized uniformly, there is no possibility for bulging at all.

4. 发明专利

JPS5689362A METHOD AND DEVICE FOR FEEDING MOLTEN IRON IN HORIZONTAL CONTINUOUS CASTING OF IRON 失效
公开(公告)号：JPS5689362A
公开(公告)日：1981-07-20
申请号：JP16668479
申请日：1979-12-21
申请人： NIPPON STEEL CORP
发明人： SUGITA KIYOSHI , IZUMI SUSUMU , SHIBATA HIDETOSHI , TAKASHIMA TOSHIYASU
IPC分类号： B22D11/04 , B22D11/10 , B22D41/50
摘要： PURPOSE:To supply molten iron of equal equality, equal temp. and equal amount over the entire width of a mold by feeding the molten iron to a horizontal header pipeline which is communicating with the tuyere of a storage tank and is othogonal thereto, and further feeding the same to the plural tubular nozzles arrayed orthogonally below the header pipeline. CONSTITUTION:Molten metal discharged from a storage tank tuyere 1 is sent to a header pipeline 2 disposed horizontally orthogonally to this. Next, the molten iron received by the pipeline 2 is fed to the plural tubular nozzles 3 installed horizontally and parallelly through the plural header outlets 4 punched horizontally orthogonally to this pipeline 2 below the pipeline 2. As a result, the molten iron is fed at equal flow speed and bath temp. from each nozzle 3. In addition, either one or both of the joining part of the trailing end 5 of the tuyere 1 and the leading end 6 of the pipeline 2 and the joining part of the trailing end of the outlet 4 and the leading end 8 of the nozzle 3 are so constituted as to bring into contact with each other cylindrically or spherically. Hence, even if there are slight fluctuations in the mutual contact angle, they always allow to contact in alignment,thus molten metal leakage is prevented. Here, 9 in the figure denotes the slope of the pipeline 2, and 10 the size face of the pipeline 2, respectively.

5. 发明专利

JPS5689363A VESSEL FOR CONTINUOUS CASTING AND FEEDING OF IRON 失效
公开(公告)号：JPS5689363A
公开(公告)日：1981-07-20
申请号：JP16668579
申请日：1979-12-21
申请人： NIPPON STEEL CORP
发明人： SUGITA KIYOSHI , IZUMI SUSUMU , SHIBATA HIDETOSHI , TAKASHIMA TOSHIYASU
IPC分类号： B22D11/04 , B22D11/10
摘要： PURPOSE:To obtain a vessel for continuous casting and feeding suited for horizontal and inclined continuous casting in particular which is so constituted that the molten iron surface in a molten iron receiving chamber is moved upward by introducing a pressurized gas into the bath surface of a molten iron storage tank and the molten iron is discharged by the difference in height between this and the discharge pipeline. CONSTITUTION:This vessel for continuous casting and feeding of iron has a molten iron storage tank 1 provided with a lead-in and out port 12 for a gaseous pressure regulating gas to the bath surface of molten iron 5. A molten metal receiving chamber 3 which communicates with the storage tank 1 in the upper part and has a molten metal receiving port in the upper part, and single or plural discharge pipe 4 communicating with the storage tank 1 in the lower part and communicating with a feed tuyere 18 in the upper part are provided respectively adjacently to said storage tank. In this constitution, the bath surface 16 of the molten iron 5 is pressurized by the inert gas, such as Ar, introduced 12, whereby the bath surface 17 in the chamber 3 is made higher than the bath surface 16. On the other hand, in the discharge part 2', the top end of the pipeline 4 is made flush with the top end of the tuyere 18. Namely, the molten metal is discharged at a required speed from the tuyere 18 by the difference in height between the bath surface 17 and the centerline height of the tuyere 18.

6. 发明专利

JPS5262105A METHOD FOR DISMANTLING LINING REFRACTORY MATERIAL OF METAL MIXER TRUCK 失效
公开(公告)号：JPS5262105A
公开(公告)日：1977-05-23
申请号：JP13883075
申请日：1975-11-19
申请人： NIPPON STEEL CORP
发明人： TAKASHIMA TOSHIYASU
IPC分类号： C21C1/06 , F27B17/00 , F27D1/16
摘要： PURPOSE:To enable to carry out the operation of dismantling safely regardless of the temperature of the furnace body and, accordingly, to enable to carry out rapidly the repairs of the metal mixer truck, by piercing and breaking a part of the lining refractory material from the otuside of the furnace body, at the dismantling of the lining refractory material of the metal mixer truck.

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