专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JPH10286655A FLAT NOZZLE FOR SHEET METAL CONTINUOUS CASTING APPARATUS 失效
公开(公告)号：JPH10286655A
公开(公告)日：1998-10-27
申请号：JP9621897
申请日：1997-04-14
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： HAMAMATSU TAKASHI , TAKEUCHI TOMOHIDE , ISHII AKIO
IPC分类号： B22D11/06 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To improve the connecting strength mutually between the upper and the lower parts bounded by a spouting part and to prevent the fall-out of a nozzle bottom part in a casting part by arranging a reinforcing plate so as to connect the bottom surface inside the nozzle with inner surface thereof opposed to the molten metal spouting hole side. SOLUTION: The flat nozzle 10 is constituted of wide side walls 1, narrow side walls 11 and bottom plate 4 and slitting spouting holes 3 of three positions at the lower one side in the wide side walls 1 (six positions at the faced both sides), a the reinforcing plates 2 are arranged at the inside between the spouting holes 3. The reinforcing plate 2 has the triangular cross sectional surface and integrally connected with the wide side walls 1 faced to the bottom plate 4 of the nozzle 10 and connected with the wide side walls 1 at the higher position than the spouting holes 3. Then, the thickness of the reinforcing plate can be within interval between the spouting holes 3. Since the nozzle 10 is ordinarily formed with CIP, etc., reinforcing plates 2 are integrally formed at the same time with the CIP formation or separately formed and integrated before or after burning.

12. 发明专利

JPH09301764A HEAT-INSULATING BRICK 失效
公开(公告)号：JPH09301764A
公开(公告)日：1997-11-25
申请号：JP13972196
申请日：1996-05-10
申请人： NIPPON STEEL CORP , HINOMARU YOGYO CO LTD
发明人： NAKAMURA HITOSHI , ISHII AKIO , TERASAWA AKIRA , NAGASAKI YASUSHIGE
IPC分类号： C04B35/00 , C04B35/16 , F27D1/00
摘要： PROBLEM TO BE SOLVED: To reduce gas permeability of the brick by converting open pores in a brick into closed pores while retaining the pores in the brick, in order to solve the problem of requiring a long time for adjusting the atmosphere at the time of using conventional bricks for an atmospheric furnace, since such a brick has open pores. SOLUTION: In the production of this brick, 3 to 12wt.% of a sinterable alumina raw material is added to a base blend specified by JIS(Japan Industrial Standards) R2611 and they are blended together and then, the resulting blend is formed into a formed body and thereafter, the formed body is sintered at a temp. in the range of SK(Seger Kegel) 11 to SK 12 to provide the objective heat-insulating brick having a /cmH2 O.sec after the sintering. Thus, in the brick, the sinterable alumina is joined to the base blend so as to cover the grain boundaries of the base blend with the alumina to enclose the pores in the blend raw materials and also, to convert the pores formed in the grain boundaries into closed pores and accordingly, to inhibit the gas permeation.

13. 发明专利

JPH09295130A CLEANING MATERIAL FOR REMOVING STUCK MATTER ON SURFACE OF REFRACTORY 失效
公开(公告)号：JPH09295130A
公开(公告)日：1997-11-18
申请号：JP10803896
申请日：1996-04-26
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： TSUDA HIDEYUKI , MATSUO MASATAKA , MAEDA KAZUO , ISHII AKIO
IPC分类号： B22D43/00 , C21C5/46 , F27D25/00 , F27D23/02
摘要： PROBLEM TO BE SOLVED: To provide a cleaning material for removing stuck matter on the surface of a refractory which can uniformly clean the whole surface of the refractory, by melting and flowing off the stuck matter on the refractory surface. SOLUTION: This cleaning material is composed of 20-80wt.% Al-containing metallic powder containing >=30wt.% Al and having 0.45-0.5mm grain diameter and a remaining part of Fe-containing oxide powder containing >=20wt.% and having 0.045-0.5mm grain diameter.

14. 发明专利

JPH07239189A TEMPORARY ASSEMBLING SYSTEM FOR FIXED FORM REFRACTORY MATERIAL AND TEMPORARY ASSEMBLING METHOD FOR THE SAME 失效
公开(公告)号：JPH07239189A
公开(公告)日：1995-09-12
申请号：JP5111394
申请日：1994-02-25
申请人： NIPPON STEEL CORP
发明人： NAKAMURA HITOSHI , ISHII AKIO
IPC分类号： F27D1/16
摘要： PURPOSE:To provide a temporary assembling system for a fixed form refractory material wherein work time can be made shorter and manufacturing cost can be reduced. CONSTITUTION:Data inputted by a data input means 20 is judged by a dimension standard judging means 30, and if a fixed form refractory material is judged to be within a dimension standard value, the refractory material is used to perform an imaginary temporary assembling by a temporary assembling means 40 so that the shape of the fixed form refractory material takes a predetermined shape, and the temporary assembling data is outputted by a data output means 50 so that it is judged by a temporary assembling standard judging means 60 whether or not the imaginary temporary assembling value is within a temporary assembling standard value. And if it is judged that the imaginary value is within the standard value, a reference line, which can be used as a reference in an actual assembling, is calculated by a reference line calculation means 70 to put a marking on the fixed form refractory material by means of a marking means 80.

15. 发明专利

JPH07224308A REFRACTORY STRUCTURE OF BLAST FURNACE TUYERE 失效
公开(公告)号：JPH07224308A
公开(公告)日：1995-08-22
申请号：JP3524094
申请日：1994-02-09
申请人： NIPPON STEEL CORP
发明人： NAKAMURA HITOSHI , ISHII AKIO , MIKAMI YORIYOSHI
IPC分类号： C21B7/16
摘要： PURPOSE:To prevent jerking up of tuyeres by forming joints to suppress movement of tuyere refractory blocks by a fluctuation in an in-furnace temp. CONSTITUTION:The construction of the tuyeres is composed of the divided right and left blocks 5, 6 forming the longitudinal joint 4 so as to bisect the tuyere blocks 1 of the refractories in a perpendicular direction. Further, the construction described above may be composed of the tuyere blocks forming the longitudinal joint and transverse joint so as to bisect the blocks respectively in a perpendicular direction and horizontal direction by shifting the blocks at need prescribed distance in the same rotating direction from the central line of the tuyere or forming the longitudinal joint so as to bisect the blocks in the perpendicular direction and forming the transverse joint so as to bisect the blocks in the horizontal direction by shifting the blocks by the prescribed distance in the same rotating direction from the central line of the tuyere. The construction which is provided with the tuyere blocks forming the transverse joint so as to bisect the blocks in the horizontal direction by shifting the blocks by the prescribed distance from the center line of the tuyere and positions the adjacent tuyere blocks so as to stagger from each other is equally possible.

16. 发明专利

JPH0796355A FLAT NOZZLE FOR CONTINUOUSLY CASTING WIDE WIDTH THIN CAST SLAB 失效
公开(公告)号：JPH0796355A
公开(公告)日：1995-04-11
申请号：JP24165693
申请日：1993-09-28
申请人： NIPPON STEEL CORP , KUROSAKI REFRACTORIES CO
发明人： TSUTSUI KOJI , ISHII AKIO , KIRIHARA MASAFUMI , TSUKIJI HIDEO , INOUE YUKIO
IPC分类号： B22D41/50 , B22D11/06 , B22D11/10
摘要： PURPOSE:To obtain the flat nozzle having a easily manufactured nozzle body and high pressure tightness by forming a slit at the lower part of the nozzle body in the horizontal direction and arranging a refractory cover formed with an inserting hole for an intermediate nozzle at the upper end part. CONSTITUTION:The flat nozzle 1 is composed of a main body 2 integrally formed with the nozzle 1 and the refractory cover 3 arranged at the upper end part thereof, and horizontal slit-like nozzle holes 4 faced sideways are formed on both side walls of a cooling drum side near the lower closed end of the main body 2. In the refractory cover 3, the inserting hole 6 for inserting the intermediate nozzle 5 is formed. Then, in the bottom part of the main body 2, a filter 8 made of meltable metal 7 and porous refractory incorporated for giving pressure loss to the molten metal from the nozzle hole of the intermediate nozzle 5. By this constitution, the assembling work of the upper part and the lower part can be omitted, and the shortening of manufacturing period of the nozzle body and the reduction of manufacturing cost can be attained. Further, as the nozzle main body is integrally formed and is strong, the supply of the molten metal into a shifting mold is stably executed over a long time.

17. 发明专利

JPH06158145A THERMAL SPRAYING REPAIR METHOD OF RH DEGASSING FURNACE 失效
公开(公告)号：JPH06158145A
公开(公告)日：1994-06-07
申请号：JP33780692
申请日：1992-11-26
申请人： NIPPON STEEL CORP
发明人： ISHII AKIO , SUKENARI SHIRO , ASO SEIJI , YAMADA JUNJI , MAEDA KAZUO
IPC分类号： C21C7/10 , F27D1/16 , F27D21/02
摘要： PURPOSE:To repair in a wide range and in a short time a damaged place of an inner lining made of refractory of RH degassing furnace. CONSTITUTION:A canopy center part of RH degassing furnace is opened, a thermal spraying burner lance 2 is inserted into furnace inside from the opening, also, a furnace inside observation camera 7 is inserted from an immersed tube 9, confirming a damaged place of the inner lining made of refractory by the furnace observation camera 7, a damaged place 10 of the inner lining made of refractory is repeired by thermal spraying. As necessary, same as conventional one, the thermal spraying burner lance 10 is inserted from the other immersed tube 9 and thermal spraying repair is executed by using together the thermal spraying burner lances 2 from upper/lower.

18. 发明专利

JPH0665622A REFRACTORY LINING FOR FURNACE 失效
公开(公告)号：JPH0665622A
公开(公告)日：1994-03-08
申请号：JP24402792
申请日：1992-08-21
申请人： NIPPON STEEL CORP
发明人： GOTO KIYOSHI , ISHII AKIO , SAKAMOTO HIROSHI , SAITO MASAO , KASAHARA HAJIME
IPC分类号： C04B35/043 , C04B35/04 , C04B35/10 , C04B35/103 , C21C5/44 , F27D1/00
摘要： PURPOSE:To provide a refractory lining of long life in a furnace where a large volume of gas or the like is blown in. CONSTITUTION:For the lining of a furnace where gas of the volume of >=20Nm /H for each ton of molten iron or molten steel is blown in from the furnace bottom, (1) magnesia-carbon brick whose elastic modulus is and whose bending strength at 1400 deg.C is >=100kg/cm or (2) alumina-spinel-silicon carbide-carbon brick whose elastic modulus is and whose bending strength at 1400 deg.C is >=100kg/cm is used. This brick realizes the lining of high durability by which the heat shock resistance and the wear resistance are well balanced.

19. 发明专利

JPH04295044A REFRACTORY FOR MOLTEN METAL TREATING VESSEL 失效
公开(公告)号：JPH04295044A
公开(公告)日：1992-10-20
申请号：JP8433191
申请日：1991-03-26
申请人： NIPPON STEEL CORP
发明人： NAKAO ATSUSHI , ISHII AKIO
IPC分类号： C04B35/103 , C04B35/10 , F27D1/00
摘要： PURPOSE:To obtain refractories for a molten metal and a molten metal vessel using the refractories such as a molten pig iron pretreating vessel. CONSTITUTION:Refractories for a molten metal are composed of 3-20wt.% carbon, 3-10wt.%, in total, of an Al-contg. alloy and boron carbide, and the balance aluminum oxide, and a molten metal vessel lined with the refractories is obtd. The carbon matrix has a significant oxidation inhibiting effect even in an oxidizing atmosphere at a high temp. and high corrosion resistance, superior thermal shock resistance and slag penetration resistance are ensured.

20. 发明专利

JPH0481250A METHOD FOR LUBRICATING SIDE WEIR IN STRIP CONTINUOUS CASTER 失效
公开(公告)号：JPH0481250A
公开(公告)日：1992-03-13
申请号：JP19187790
申请日：1990-07-21
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： TSUTSUI KOJI , ISHII AKIO , OMATSU YASUHIKO , WAKIYAMA YOICHI
IPC分类号： B22D11/06
摘要： PURPOSE:To lubricate wearing surface of ceramic in a side weir together with sliding surface by pushing solid lubricator formed to bar-state to the sliding surface in a cooling drum with a pushing device arranged at back face of the side weir. CONSTITUTION:Outside of the side weir 2a is covered with a side weir case 7 and surface contacting with end face 18 of the cooling drum 1b is constituted with heat insulating material 8, base member 9 and the ceramic 10 planted on the base member. The ceramic 10 is arranged along the surface, which the sliding surface 19 at end face of the cooling drum slides, i.e., the wearing surface 20, and lubricator supplying holes are opened in four places at upper part 11a, 12a and center part 11b, 12b. In this supplying hole, a guide pipe 15 penetrated in the side weir and the lubricator 14 in this as shiftable are inserted. In the lubricator pushing device, the lubricator is held with a lubricator holding part 17 arranged at tip part of a rod in a cylinder 16 and pushed to the sliding surface 19 at the end face of cooling drum with the prescribed surface pressure.

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