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1. 发明专利

JPH02208260A HIGH ALUMINA CONTENT CASTING MATERIAL FOR SPECIAL SMELTING LADLE 失效
公开(公告)号：JPH02208260A
公开(公告)日：1990-08-17
申请号：JP2566189
申请日：1989-02-06
申请人： NIPPON STEEL CORP , HARIMA CERAMIC CO LTD
发明人： KANNO AKIRA , SAITO MASAO , MATSUMOTO OSAMI , ISOBE TOSHIHIRO
IPC分类号： C04B35/66
摘要： PURPOSE:To obtain a casting material of high alumina content of improved crack formation and duration reliability by using Al2O3, MgO and SiO2 at a specific ratio. CONSTITUTION:In a casting material comprising 65 to 85wt.% of Al2O3, 5 to 25wt.% of MgO and less than 30wt.% of SiO2, the ratio of Al2O3 of less than 1mm particle sizes/(Al2O3+SiO2) is adjusted to 0.80 to 0.95. As a preferable binder, is cited alumina cement, refractory clay, silica ultrafine powder and silicic acid glass and the binder is preferably prepared selecting 1 or more of these binders. The starting alumina material used in this invention is sintered alumina, electrically fused alumina as a synthetic one or bauxite or mullite as a naturally occurring one.

2. 发明专利

JPS60116709A LAYING METHOD OF BRICK ON BOTTOM BLOW NOZZLE 失效
公开(公告)号：JPS60116709A
公开(公告)日：1985-06-24
申请号：JP22650283
申请日：1983-11-30
申请人： NIPPON STEEL CORP
发明人： SAKAMOTO KATSUHIKO , TAKASHIMA HARUO , ARIMA KEIJI , KANNO AKIRA
IPC分类号： C21C5/44 , C21C5/48 , F27D1/16
摘要： PURPOSE:To lay bricks at the bottom part of a furnace including a bottom blow nozzle with precision in a short time by arranging plural blow nozzles at the center of the bottm and at the positions equidistant from the center, and laying wear bricks concentrically with the central nozzle as a center. CONSTITUTION:A nozzle 100 is arranged at the central part of the furnace bottom in a bottom- or a top-blown converter, and the nozzles 101, 102, etc. are arranged at concentric positions equidistant from the central part. A permanent brick 3 in the regular form is subsequently laid in the shape of a net, and a wear brick 4 or a unit wear brick 40 is further laid concentrically with the central nozzle 100 as a center. The tuyere brick 200 of the central nozzle 100 is shaped into the strictly circular from with the center line (x) of the nozzle 100 as a center. Meanwhile, the width W of the tuyere bricks 201 and 202 of the nozzles 101 and 102 is preferably regulated to integral times the width (w) of the unit wear brick 40.

3. 发明专利

JP2010070422A Heat resistant mortar and method for constructing refractory 有权
$Heat resistant mortar and method for constructing refractory$
标题翻译：耐火材料和建筑耐火材料的方法
公开(公告)号：JP2010070422A
公开(公告)日：2010-04-02
申请号：JP2008240852
申请日：2008-09-19
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KASAI KIYOTO , KANNO AKIRA
IPC分类号： C04B35/66 , F27D1/00 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide heat resistant mortar remarkably improving workability in the construction of a hearth, a retaining wall or the like of a coke furnace and attaining long term heat resistance of the furnace. SOLUTION: The heat resistant mortar used for the construction of a furnace body formed by piling up refractory 7 for a furnace body and refractory 3 formed around the furnace body and provided between the furnace body and concrete 1 holding the furnace body contains ≥55 mass% and ≤75 mass% aggregate containing at least one of silica and alumina as essential ingredients and the balance an alumina cement-based binder. The aggregate contains ≥50% aggregate particles having ≥0.6 mm and COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供耐热砂浆显着提高焦炉的炉床，挡土墙等的施工能力，并获得炉的长期耐热性。解决方案：用于构造炉体的耐热砂浆，其通过堆积炉体的耐火材料7和在炉体周围形成的耐火材料3，并且设置在炉体和保持炉体的混凝土之间，其含有≥ 55质量％和≤75质量％的骨料，其含有二氧化硅和氧化铝中的至少一种作为必需成分，余量为氧化铝水泥基粘合剂。骨料含有≥0.5mm的粒径为≥0.6mm，粒径<2mm，粒径为0.2mm的≥20质量％的骨料颗粒≥50％。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JPS53115622A PREHEATLNG OF STOPPER FOR LADLE 失效
公开(公告)号：JPS53115622A
公开(公告)日：1978-10-09
申请号：JP2999577
申请日：1977-03-18
申请人： NIPPON STEEL CORP
发明人： OOTA SUEICHI , SUGAWARA TAKESHI , KANNO AKIRA
IPC分类号： B22D11/10 , B22D35/06 , B22D41/16

5. 发明专利

JP2010024320A Method for repairing gas-leaking position of furnace top part of coke oven, and brick-piled construction of surrounding of charging port 有权
标题翻译：烧烤炉顶部烟气泄漏位置的方法和充气口周边砖结构施工方法
公开(公告)号：JP2010024320A
公开(公告)日：2010-02-04
申请号：JP2008186082
申请日：2008-07-17
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KASAI KIYOTO , KANNO AKIRA
IPC分类号： C10B29/06 , C10B29/02
摘要： PROBLEM TO BE SOLVED: To provide a method for repairing the gas-leaking position of a furnace top of a coke oven, capable of preventing the gas leak developed at the surroundings of a charging port in the furnace top of the coke oven. SOLUTION: This method for repairing the gas-leaking position of the furnace top of the coke oven is provided by comprising a process S2 of opening a hole by the core-boring of vertical joints between bricks, exposed to the inside surface of the charging port installed at the ceiling part of the coke oven or connecting with the outer circumference of a charging pot surrounding the upper part of the charging port, a process S3 of filling a dry stamping material into the hole formed by the core-boring, and a process S4 for blocking out the hole by injecting a castable refractory to the hole filled with the dry stamping material. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于修复焦炉炉顶的气体泄漏位置的方法，其能够防止在焦炉的炉顶中的充气口周围的气体泄漏。解决方案：用于修复焦炉炉顶的气体泄漏位置的方法是通过包括通过在砖之间的垂直接头的芯钻孔打开孔的工艺S2，暴露于砖的内表面所述充电口安装在所述焦炉的顶部或与所述充电口的上部周围的充电罐的外周连接，将干式冲压材料填充到由所述芯镗孔形成的孔中的工序S3，以及通过向填充有干式冲压材料的孔注入可浇铸耐火材料来堵塞孔的工艺S4。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JPS6217005B2 失效
公开(公告)号：JPS6217005B2
公开(公告)日：1987-04-15
申请号：JP22650283
申请日：1983-11-30
申请人： NIPPON STEEL CORP
发明人： SAKAMOTO KATSUHIKO , TAKASHIMA HARUO , ARIMA KEIJI , KANNO AKIRA
IPC分类号： C21C5/44 , C21C5/48 , F27D1/16

7. 发明专利

JP2010006948A Method for closing drying hole of coke oven and brick for drying hole of coke oven 有权
标题翻译：用于封闭焦炉干燥孔的方法，用于烘烤焦炉的孔
公开(公告)号：JP2010006948A
公开(公告)日：2010-01-14
申请号：JP2008167590
申请日：2008-06-26
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KASAI KIYOTO , KANNO AKIRA
IPC分类号： C10B29/00 , C10B29/06
摘要： PROBLEM TO BE SOLVED: To provide a method for closing drying holes of coke oven, which surely prevents gas leakage between combustion chambers and carbonization chambers without causing falling of plug brick even in use for a long period of time. SOLUTION: In the method for closing drying hole of coke oven with which the drying hole 4 of coke oven is closed with plug brick 6, the drying hole 4 has a control part for controlling penetration of plug brick 6 and a cavity part 51 that is formed at an intermediate position in the inside of the drying hole 4, is connected to the edge of the plug brick 6 and prevents falling of the plug brick 6 in the direction opposite to the control direction of the control part and a process S1 of coating the outer peripheral surface of the plug brick 6 with mortar 7, a process S2 of inserting the plug brick 6 coated with the mortar 7 into the drying hole 4, a process S3 of connecting the edge of the plug brick 6 to the cavity part 51 and a process S4 of packing the drying hole 4 with a thermal spray material 8 are carried out. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种关闭焦炉干燥孔的方法，其可以防止燃烧室和碳化室之间的气体泄漏，而不会在长时间使用的情况下引起堵塞砖的掉落。解决方案：在用焦砖6关闭焦炉干燥孔4的焦炉干燥孔的方法中，干燥孔4具有用于控制塞子砖6的穿透的控制部和空腔部 51形成在干燥孔4的内部的中间位置，与插头砖6的边缘连接，防止插头砖6沿与控制部的控制方向相反的方向落下， S1，用砂浆7涂布塞子砖6的外周面，将涂布有砂浆7的塞子砖6插入干燥孔4的工序S2，将塞子砖6的边缘连接到进行空腔部51和使用热喷涂材料8包装干燥孔4的工序S4。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JPH06218524A METHOD FOR CASTING MOLTEN STEEL REFINED IN VACUUM INDUCTION MELTING FURNACE 失效
公开(公告)号：JPH06218524A
公开(公告)日：1994-08-09
申请号：JP2716293
申请日：1993-01-25
申请人： NIPPON STEEL CORP
发明人： OTAKI AKIRA , TAKAHASHI NORIO , KANNO AKIRA , SATO TOSHIYUKI , MASUMITSU NORIYUKI , INOUE TAKASHI
IPC分类号： B22D7/00 , B22D7/06 , B22D23/00 , B22D35/04 , B22D37/00
摘要： PURPOSE:To obtain a high class steel ingot securing the same grade of the quality of material as an ingot produced by a vacuum casting method, by pouring discharged molten steel into a pouring tube for bottom pouring mold in the condition of sealing argon gas. CONSTITUTION:After charging base material into a vacuum induction melting furnace 1, melting is started. After adjusting the components, silica sand in a steel tapping hole 3 is rejected. A truck 2 for mounting the induction furnace is shifted to just above the pouring tube 5 for mold. This induction melting furnace 1 is shifted downward so that the distance between the tip part of the steel tapping hole 3 and the pouring tube 5 for mold becomes within about 100mm. Then, while uniformly blowing the argon gas in the peripheral direction of the molten steel stream, the molten steel is cast into the bottom pouring mold 6 through the pouring tube 5 for mold. By this method, the pouring stream is cut off from the air as much as possible and the high quality product of low nitrogen content can stably be produced.

9. 发明专利

JPH055124A LOW DEW POINT ATMOSPHERIC HEAT TREATMENT FURNACE 失效
公开(公告)号：JPH055124A
公开(公告)日：1993-01-14
申请号：JP15492991
申请日：1991-06-26
申请人： NIPPON STEEL CORP , NITTETSU MURORAN ENG KK
发明人： YASUZAWA NORIO , HISASUE OSAMU , KANNO AKIRA , SASAMOTO YASUO
IPC分类号： C21D1/26 , C21D1/74 , F27D1/00 , F27D7/06
摘要： PURPOSE:To provide a heat treatment furnace, by which low dew point atmosphere needed to prevention of decarbonization is realized at the time of annealing a hot-rolled steel material with nitrogen gas atmosphere. CONSTITUTION:Furnace wall is constituted by arranging space layer 5, which high moisture-containing gas can freely be fluidized at back side of a heat insulating material board 4 in the inside of furnace and successively, setting a heat insulating material of heat insulating board 3 and ceramic fiber 2 and covering iron shell 1 in the outside and arranging plural gas exhaust pipe 14 to the direction into furnace from the outer iron shell while penetrating the iron shell and the heat insulating material and positioning the tip part of this gas exhaust pipe 14 to the space layer. Further, air curtain is formed at front face of a furnace door only under condition of opening the door. By this method, time from opening of the furnace door to the air till becoming

10. 发明专利

JP2010014309A Refractory joint construction method and refractory joint structure 有权
$Refractory joint construction method and refractory joint structure$
标题翻译： REFRACTORY JOINT建筑方法和耐火接头结构
公开(公告)号：JP2010014309A
公开(公告)日：2010-01-21
申请号：JP2008173490
申请日：2008-07-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KASAI KIYOTO , KANNO AKIRA
IPC分类号： F27D1/00 , C10B29/04 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To provide a refractory joint construction method for surely exhibiting a sliding function and constructing a refractory structure that can withstand long-term use.
SOLUTION: The construction method of a joint between refractories 1, 2 constituting the refractory structure is carried out by bonding and fixing slidable sheets 4, 5 to the surface of the executed refractory 1 with the sliding surfaces placed on the surface side, placing the slidable sheets over the surface of the bonded and fixed slidable sheets 4, 5 with the sliding surfaces facing each other (S3), and bonding and fixing the refractory 2 to the laminated slidable sheets 4, 5 (S4).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种可靠地显示滑动功能并构造能够经受长期使用的耐火结构的耐火接头施工方法。解决方案：构成耐火结构的耐火材料1,2之间的接头的施工方法通过将滑动片4,5粘合并固定到被执行的耐火材料1的表面，并将滑动表面放置在表面侧，将滑动片材放置在粘合固定的可滑动片材4,5的表面上，使滑动面彼此面对（S3），并将耐火材料2粘合并固定在层压的可滑动片材4,5（S4）上。版权所有（C）2010，JPO＆INPIT

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