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1. 发明专利

JP2001018057A GAS BLOWING UPPER NOZZLE FOR OPENING AND CLOSING NOZZLE OF MOLTEN METAL VESSEL 失效
公开(公告)号：JP2001018057A
公开(公告)日：2001-01-23
申请号：JP19272199
申请日：1999-07-07
申请人： NIPPON KOKAN KK , SHINAGAWA REFRACTORIES CO
发明人： ISHII KENJI , MIYAMOTO AKIRA , NAKASHIN YOSHITAKA , KONDO HIROKAZU , IMAI NOBUHIKO , TAKENAKA KEIJI , INOUE JUNICHI
IPC分类号： B22D11/10 , B22D41/54 , B22D41/58 , C04B35/657 , C21C5/48 , C21C7/00 , C21C7/072 , F27D3/14
摘要： PROBLEM TO BE SOLVED: To provide a gas blowing upper nozzle for the opening and closing nozzle of a molten metal vessel which keeps the residual thickness of a structural refractory at a value not less than a prescribed value and has a stable gas blowing capacity even after reusing it repeatedly, desirably >=10 times. SOLUTION: The gas blowing upper nozzle for the opening and closing nozzle of the molten metal vessel has porous bricks 1 composed of

2. 发明专利

JP2575580B2 失效
公开(公告)号：JP2575580B2
公开(公告)日：1997-01-29
申请号：JP1288793
申请日：1993-01-28
申请人： SHINAGAWA REFRACTORIES CO
发明人： NOMURA OSAMU , KANASHIGE TOSHIHIKO , OGATA MASANORI , IMAI NOBUHIKO
IPC分类号： C04B35/48 , C04B35/00

3. 发明专利

JPH06287050A CARBON-CONTAINING REFRACTORY 失效
公开(公告)号：JPH06287050A
公开(公告)日：1994-10-11
申请号：JP24083492
申请日：1992-09-09
申请人： SHINAGAWA REFRACTORIES CO
发明人： ICHIKAWA KENJI , TSUKAMOTO NOBORU , NOMURA OSAMU , IMAI NOBUHIKO
IPC分类号： C04B35/00
摘要： PURPOSE:To provide carbon-containing refractory having excellent oxidation resistance and high heat strength without damaging existing characteristics of carbon-containing refractory. CONSTITUTION:A refractory raw material comprising 3-40wt.% of a carbon raw material and the rest of refractory raw material such as oxide or carbide is mixed with 0.1-8wt.% of magnesium borate by outer percentage, Metal powder such as At, Mg or Si may be used besides the refractory material.

4. 发明专利

JPH02133166A METHOD FOR REINFORCING REFRACTORIES 失效
公开(公告)号：JPH02133166A
公开(公告)日：1990-05-22
申请号：JP28233788
申请日：1988-11-10
申请人： SHINAGAWA REFRACTORIES CO
发明人： OTSUKA TAKASHI , KOYAMA MASAAKI , IMAI NOBUHIKO , TAKEUCHI KENICHI
IPC分类号： B22D11/10 , B22D41/02 , B22D41/30
摘要： PURPOSE:To prevent the generation, expansion and dislodgment of cracks by thermal impact by winding the bundle or net-like matter of carbon fibers to the refractories in the direction perpendicular to the direction of the through hole of the refractories and thereby reinforcing the refractories. CONSTITUTION:The bundle or net-like matter of the carbon fibers is wound around the refractories having the through hole of an immersion nozzle, air sealing pipe or plate brick for a slide valve, etc., or is embedded as an annular reinforcing material into the refractories concentrically with the through-hole thereof to reinforce the refractories. The carbon fibers have the coefft. of thermal expansion of 0 or negative value and exhibit a remarkable reinforcing effect at a high temp. as the strength in the longitudinal direction of the fibers is extremely high. The carbon fibers do not come into direct contact with the atmosphere and, therefore, there is no possibility of oxidation, etc., when the carbon fibers are embedded into the refractories. The generation, expansion and dislodgment of the cracks of the refractories having the through-hole in the inside part where the cracks by the thermal impact are liable to arise are thus prevented.

5. 发明专利

JP2003117639A STRUCTURE OF NOZZLE FOR CONTINUOUS CASTING 审中-公开
公开(公告)号：JP2003117639A
公开(公告)日：2003-04-23
申请号：JP2001316460
申请日：2001-10-15
申请人： SHINAGAWA REFRACTORIES CO
发明人： IMAI NOBUHIKO , OSADA MOTOTSUGU , MATSUO KENJI
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To restrain the occurrence of crack in an intermediate nozzle. SOLUTION: In a structure of the nozzle for continuous casting arranging the intermediate nozzle 23 between slide valve 5 and a joining nozzle 25 of a straightening nozzle, an immersion nozzle, a lower nozzle, a long nozzle, etc., a metallic case 27 is fitted to the outer periphery of the above intermediate nozzle 23 and also, a recessed part 26 is formed at the lower end part of this intermediate nozzle 23. Then, at the upper end part of the above joining nozzle 25 joined with this intermediate nozzle a projected part 25a fitted to the above recessed part 26 is formed.

6. 发明专利

JPH0312994B2 失效
公开(公告)号：JPH0312994B2
公开(公告)日：1991-02-21
申请号：JP4102289
申请日：1989-02-21
申请人： SHINAGAWA REFRACTORIES CO
发明人： YAMAMOTO KENJI , IMAI NOBUHIKO , OGATA HIROSHI
IPC分类号： B22D11/10 , B22D41/28

7. 发明专利

JPH02220766A REFRACTORY STRUCTURE BODY 失效
公开(公告)号：JPH02220766A
公开(公告)日：1990-09-03
申请号：JP4102289
申请日：1989-02-21
申请人： SHINAGAWA REFRACTORIES CO
发明人： YAMAMOTO KENJI , IMAI NOBUHIKO , OGATA HIROSHI
IPC分类号： B22D11/10 , B22D41/28
摘要： PURPOSE:To introduce developed crack to non-important surface at rear side and to prevent enlargement of the crack to the important surface by arranging grooves on surface of a refractory having penetrating hole for pouring out molten steel. CONSTITUTION:The refractory structural body is provided with the grooves 5 extended from outside faces of projecting parts 4, 4a of the penetrating holes 1, 1a to outside faces of the refractory on the non-important surface 3 at rear side in circumferential parts of the penetrating holes 1, 1a bored in the refractory to the thickness direction. The penetrating holes 1, 1a are flowing out hole for molten steel and the important surfaces 2, 2a are brought into direct contact with the molten steel in sliding surface by rotating-sliding on a slide plate. The several pieces of grooves 5 arranged are made to have the width of 0.1-5.0mm and the depth from 2mm to 4/5 of the plate-like refractory thickness 4.

8. 发明专利

JPH06227862A ZIRCONIA-BASED BRICK 失效
公开(公告)号：JPH06227862A
公开(公告)日：1994-08-16
申请号：JP1569893
申请日：1993-02-02
申请人： SHINAGAWA REFRACTORIES CO
发明人： TSUKAMOTO NOBORU , NOMURA OSAMU , IMAI NOBUHIKO , NANAMORI IKUO , TAKENAKA KEIJI
IPC分类号： C04B35/48
摘要： PURPOSE:To provide the objective zirconia-based brick having excellent corrosion resistance to slag having low basicity and suitable for a nozzle for flow rate control in continuous casting of molten steel or plate brick for flow rate control of molten steel. CONSTITUTION:The zirconia-based brick consists of >=50wt.% Cr2O3-dispersed and stabilized zirconia containing >=85wt.% ZrO2, 0.5-10wt.% Cr2O3 and =90wt.% ZrO2 zirconia clinker and 0.5-10wt.% (based on 100wt.% zirconia clinker) Cr2O3 having 44mum particle size. The brick is obtained by burning these components at 1600-1900 deg.C.

9. 发明专利

JPH06219829A CARBON-CONTAINING REFRACTORY 失效
公开(公告)号：JPH06219829A
公开(公告)日：1994-08-09
申请号：JP1288793
申请日：1993-01-28
申请人： SHINAGAWA REFRACTORIES CO
发明人： NOMURA OSAMU , KANASHIGE TOSHIHIKO , OGATA MASANORI , IMAI NOBUHIKO
IPC分类号： C04B35/48 , C04B35/00
摘要： PURPOSE:To obtain a excellent carbon-containing refractory capable of effectively improving corrosion resistance without deteriorating thermal impact resistance by combining an Al2O3-ZrO2-MgO based spinel clinker containing ZrO2, a carbon raw material and a refractory raw material. CONSTITUTION:The carbon-containing refractory is composed of 4-90wt.% Al2O3-ZrO2-MgO based spinel clinker containing 10-60wt.% ZrO2, 2-40wt.% carbon raw material and balance the refractory raw material. The carbon- containing refractory is obtained by adding 2-20wt.% binder such as phenolic resin into the combined material having the composition in external multiplication, mixing and kneading. Then, the kneaded material is compacted into a prescribed shape, is dried to make a non-fired product or is made a fired product by firing in a nonoxidizing atmosphere such as in a cokes breeze at 800-1500 deg.C.

10. 发明专利

JPH06128044A MONOLITHIC REFRACTORY COMPOSITION 失效
公开(公告)号：JPH06128044A
公开(公告)日：1994-05-10
申请号：JP28010692
申请日：1992-10-19
申请人： SHINAGAWA REFRACTORIES CO
发明人： KANASHIGE TOSHIHIKO , OGATA MASANORI , IMAI NOBUHIKO , NANBA MAKOTO
IPC分类号： C04B35/66
摘要： PURPOSE:To provide monolithic refractory composition having high corrosion resistance. CONSTITUTION:This monolithic refractory composition consists of 80-98wt.% MgO-Al2O3-ZrO2 based spinel clinker containing >=1wt.% zirconia and 2-20wt.% alumina cement or 5-97wt.% MgO-Al2O3-ZrO2 based spinel clinker containing >=1wt.% zirconia, >=2-20wt.% alumina cement and residual part of at least one kind of raw material selected from the group consisting of zirconia, magnesia, spinel and alumina. Further, this monolithic refractory composition can contain 10-50wt.% crushed grains.

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