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21. 发明专利

JPH03251684A HOT REPAIRING METHOD OF POTTERY FURNACE WALL 失效
公开(公告)号：JPH03251684A
公开(公告)日：1991-11-11
申请号：JP4898890
申请日：1990-02-27
申请人： SHINAGAWA REFRACTORIES CO , KOBE STEEL LTD
发明人： OKUDA SHIGERU , SUMIYOSHI YOSHIHIRO , SAWAKI NAGAYASU , MURAKAMI SADAYUKI , HORIKAWA KENICHI , OTE AKIRA , YASUDA FUMITERU
IPC分类号： F27D1/16
摘要： PURPOSE:To repair rigidly the damaged part of a furnace wall simply by a method wherein hot repairing material, constituted by mixing carbon repairing material with the chips of refractories having a specified grain size, is thrown into the damaged part of the furnace wall of a pottery furnace to sinter it by the heat of the pottery furnace. CONSTITUTION:A rotary furnace 1 is tilted into a condition that the damaged part 1a of the same comes to the lower side. Hot repairing material 2, mixed with the chips of refractories having specified grain sizes of 10-200mm, is thrown into the damaged part 1a from a furnace opening 1b by a pipe type or a trough type throwing device 4 attached to a lift 3. Subsequently, these repairing materials are sintered by the heat of the pottery furnace. According to this method, the mechanical strength of the damaged part can be secured by the chips of the refractories and the homogeneity of the repaired part can be secured by the mixing of the refractory chips while the damaged part of the furnace wall can be repaired rigidly and simply since the carbon baking repairing material, filling clealances between the chips of refractories, is sintered by the heat of the furnace whereby the chips of the refractories and the baked repairing material are integrated.

22. 发明专利

JPH03126660A REFRACTORY FOR TREATING MOLTEN PIG IRON 失效
公开(公告)号：JPH03126660A
公开(公告)日：1991-05-29
申请号：JP26303589
申请日：1989-10-11
申请人： SHINAGAWA REFRACTORIES CO , KOBE STEEL LTD
发明人： OTE AKIRA , KAWAMURA YASUYUKI , ICHIKAWA KENJI , FUJIWARA TEIICHI , NISHIYAMA HIDEAKI , TANIGUCHI SHIGEO , TERASAKI MAMORU
IPC分类号： C04B35/103 , C04B35/10
摘要： PURPOSE:To obtain a refractory for treating molten pig iron having improved corrosion and oxidation resistances by blending specified percentages of aluminum oxynitride, beta-alumina, silicon carbide, graphite and aluminous starting material. CONSTITUTION:This refractory for treating molten pig iron is composed of by weight, 2-15% aluminum oxynitride, 2-15% beta-alumina, 5-20% silicon carbide, 5-25% graphite, 0-7wt.% one or more among Al, ferrosilicon and boron carbide and the balance aluminous starting material such as electromelted alumina or natural alumina. Since aluminum oxynitride improves oxidation and corrosion resistance, this refractory has satisfactory performance as a furnace material for a torpedo ladle car and the material of a pan for treating molten pig iron.

23. 发明专利

JPH08300140A UNSHAPED REFRACTORY LINING OF MOLTEN STEEL LADLE BED PART 失效
公开(公告)号：JPH08300140A
公开(公告)日：1996-11-19
申请号：JP9885395
申请日：1995-04-24
申请人： KOBE STEEL LTD
发明人： OTE AKIRA , OCHIAI YUJI
IPC分类号： B22D41/02 , F27D1/04
摘要： PURPOSE: To reduce the use of the unshaped refractory between major repairs by reducing the thickness of a permanent brick in the range where the molten steel is brought into contact when it is received, and increasing the thickness of the unshaped refractory lining at the part. CONSTITUTION: In the unshaped refractory lining of a molten steel ladle bed part, the thickness of the range where the molten steel is brought into contact when the molten steel is received, i.e., the thickness of the permanent brick 4 of the molten steel striking part 1 is smaller than that of a peripheral part 2. The thickness of the unshaped refractory lining 3 other than the molten steel striking part 1 is increased by the amount of the reduced thickness of the permanent brick 4. The thickness of the unshaped refractory lining 3 other than the molten steel striking part 1 is of the minimum value capable of withstanding the use between major repairs. During the intermediate repair, the extra material of the lining 3 of the molten steel striking part 1 is added, and tuyere bricks 6 are replaced. The amount of the unshaped refractory lining 3 to be used between major repairs can be reduced by about 20% compared with the conventional value.

24. 发明专利

JPH08261660A METHOD AND APPARATUS FOR EXECUTING PREPARED UNSHAPED REFRACTORY 失效
公开(公告)号：JPH08261660A
公开(公告)日：1996-10-11
申请号：JP6124295
申请日：1995-03-20
申请人： HARIMA CERAMIC CO LTD , KOBE STEEL LTD
发明人： OSHIMA RYUZO , OTE AKIRA , OCHIAI YUJI , MATSUMOTO OSAMI , KATAYAMA MASATO , YOSHIZAWA SHINICHI , AKATA KATSUMI
IPC分类号： F27D1/00 , F27D1/16
摘要： PURPOSE: To obtain an excellent executing material even when openings are concentrated at one side of a deposit in the case of executing the deposit of a molten metal vessel. CONSTITUTION: A receiving hopper 3 and a chute 4 are disposed at the center of a molten metal vessel 1, and a vibrating hopper 8 interlocked to a vibrating plate 7 is provided under the chute 4. A jack support frame 5 is fixed to the lower part of a support frame 2, and the plate 7 is vertically movably supported by the frame 5. A prepared unshaped refractory is cast in the deposit in the state that the plate 7 is lifted by the jack 6. After the casting is finished, the plate 7 is moved down, the refractory is vibrated, and a load is given from above to degas the refractory.

25. 发明专利

JPS6133742A Production of tundish gate 失效
标题翻译：生产闸门
公开(公告)号：JPS6133742A
公开(公告)日：1986-02-17
申请号：JP15328484
申请日：1984-07-25
申请人： Kobe Steel Ltd , Shinagawa Refract Co Ltd
发明人： SOEJIMA TOSHIYUKI , YOKOE KANJI , OTE AKIRA , MATSUMOTO HIROSHI , UEDA TERU , ICHIKAWA KENJI , SUGIMOTO HIROYUKI , MORI MASASHI
IPC分类号： C04B35/057 , B22D11/10 , B22D41/32 , C04B35/66 , F27D1/00 , F27D1/16
CPC分类号： B22D41/32
摘要： PURPOSE:To obtain a tundish gate without the aggravation of working environment owing to the generation of gas by applying oscillation to a cartable refractory material consisting of a calcareous refractory material added with a powdery resin and anhydrous inorg. binder thereby packing the material into a flask and curing the material. CONSTITUTION:The calcareous castable refractory material is prepd. by adding 2-8pts.wt. powdery thermosetting resin and 0.5-10pts. >=1 kinds of anhydrous inorg. binders to 100pts. calcareous refractory material contg. >=10wt% CaO, CaCO3. The refractory material is charged into the metallic frame and is packed therein under the oscillation applied thereto. The frame is then put into a holding chamber, etc. and is heated to cure; thereafter the flask is removed and the desired tundish gate is obtd. The amt. of the org. resin to be used is decreased, the generation of smoke and malodor is decreased and the good working environment is maintained with the above-mentioned method. The formation of a large-sized block on site is easy.
摘要翻译：目的：为了获得中间包门，由于通过将振荡施加到由添加有粉末状树脂和无水原子的钙质耐火材料组成的可装卸耐火材料而产生气体而不加重工作环境。粘合剂，从而将材料包装到烧瓶中并固化材料。构成：石灰铸件耐火材料是制备的。加入2-8pts.wt。粉状热固性树脂和0.5-10pts。 > = 1种无水灌注。粘合剂至100pts。钙质耐火材料 > = 10wt％CaO，CaCO3。将耐火材料装入金属框架中，并在施加到其上的振动下包装在其中。然后将框架放入保持室等中，并加热固化; 之后将烧瓶取出并且获得所需的中间包浇口。 amt。的组织。使用的树脂减少，烟雾和恶臭的产生减少，并且通过上述方法保持良好的工作环境。现场形成一个大型的块很容易。

26. 发明专利

JPS6133741A Calcareous coating material for tundish 失效
标题翻译：用于土耳其的CALCAREOUS涂料
公开(公告)号：JPS6133741A
公开(公告)日：1986-02-17
申请号：JP15328384
申请日：1984-07-25
申请人： Kobe Steel Ltd , Shinagawa Refract Co Ltd
发明人： SOEJIMA TOSHIYUKI , YOKOE KANJI , OSHIMA RYUZO , KITA YUKIO , OTE AKIRA , TODA MASUSANE , MORI MASASHI , SUGIMOTO HIROYUKI
IPC分类号： C04B35/66 , B22D11/10 , B22D41/02 , C04B35/632 , F27D1/00
CPC分类号： B22D41/02
摘要： PURPOSE:To provide a titled calcareous coating material which prevents the aggravation of environment owing to the generation of gas by oscillating a castable refractory material consisting of basic aggregate added with a powdery resin and anhydrous inorg. metallic salt, packing the material into the spacing between lining refractories and inside frame and curing said material. CONSTITUTION:The calcareous castable refractory material is prepd. by adding 2-8pts.wt. powdery thermosetting resin and 0.5-10pts. >=1 kinds of anhydrous inorg. metallic salts to 100pts. basic aggregate contg. lime clinker. Such refractory material is charged into the spacing between the lining refractories and inside frame and is packed therein under the oscillation applied thereto. The material is then heated and cured from the inside of the inside frame by the hot air from a burner, etc. and thereafter the inside frame is removed and the calcareous coating layer is thus formed on the surface of the lining refractories. The coating material obviates the aggravation of the working environment owing to the generation of gas and permits mechanical coating. The calcareous coating layer having the high effect of cleaning steel is formed.
摘要翻译：目的：提供一种标题为钙质的涂层材料，防止由于添加有粉末状树脂和无水溶剂的碱性聚集体组成的可浇注耐火材料产生气体而导致环境恶化。金属盐，将材料包装在衬里耐火材料和内框架之间的间隔中，并固化所述材料。构成：石灰铸件耐火材料是制备的。加入2-8pts.wt。粉状热固性树脂和0.5-10pts。 > = 1种无水灌注。金属盐至100pts。基本汇总石灰熟料。将这种耐火材料装入衬里耐火材料和内框架之间的间隔中，并在施加到其上的振荡下包装在其中。然后通过来自燃烧器等的热空气从内框架的内部加热和固化该材料，然后移除内框架，并且在衬垫耐火材料的表面上形成钙质涂层。涂层材料由于产生气体而避免了工作环境恶化，并允许机械涂覆。形成具有高效清洁钢的钙质涂层。

27. 发明专利

JPH02200719A SLEEVE BRICK FOR TAP HOLE OF CONVERTER 失效
公开(公告)号：JPH02200719A
公开(公告)日：1990-08-09
申请号：JP2283489
申请日：1989-01-31
申请人： KOBE STEEL LTD
发明人： HORIKAWA KENICHI , OTE AKIRA
IPC分类号： C21C5/46
摘要： PURPOSE:To improve the erosion resistance of firebricks forming the tap hole of a converter and to prolong the service life by forming a sleeve brick used at the tap hole with ZrB2 contg. a specified amt. of carbon. CONSTITUTION:A sleeve brick 5 piercing through the central space among block-shaped firebricks 4 forming the tap hole 2 of a converter 1 arranged on the inside of an iron shell 3 and coming in direct contact with molten steel at the time of tapping is formed with refractories having a compsn. consisting of 10-20wt.% C and the balance ZrB2. Since ZrB2 has superior corrosion, penetration and adhesion resistances to molten steel and C has superior spalling resistance and prevents peeling due to the penetration of molten slag, the erosion of the firebricks by molten steel is reduced and the service life is prolonged.

28. 发明专利

JPH07159051A EXECUTING METHOD AND ITS APPARATUS FOR CASTABLE REFRACTORY 失效
公开(公告)号：JPH07159051A
公开(公告)日：1995-06-20
申请号：JP31063793
申请日：1993-12-10
申请人： HARIMA CERAMIC CO LTD , KOBE STEEL LTD
发明人： OSHIMA RYUZO , OTE AKIRA , OCHIAI YUJI , HIRAFUKU KEIICHI , KATAYAMA MASATO , AKATA KATSUMI
IPC分类号： B22D41/02 , C21C5/44 , F27D1/16
摘要： PURPOSE:To execute a bed part of a molten metal vessel with a small number of workers and in a short period of time and, moreover, obtain a good executed body. CONSTITUTION:A receiving hopper 18 and a chute 19 are disposed at the central part of a molten metal vessel 15, and an oscillating hopper 22 is provided underneath the chute 19. An oscillating plate 21 is connectively provided at the lower part of the oscillating hopper 22 and supported by a frame 17 via coiled springs 20. A castable refractory is guided from the oscillating hopper 22 to the underside of the oscillating plate 21 so as to be pushed but toward the peripheral side of a bottom wall, whereby the entire face of a bed part is executed.

29. 发明专利

JPH059535A METHOD FOR REPAIRING REFRACTORY LINING IN IRON RECEIVING HOLE OF MIXER CAR 失效
公开(公告)号：JPH059535A
公开(公告)日：1993-01-19
申请号：JP15703591
申请日：1991-06-27
申请人： TOWA TAIKA KOGYO KK , KOBE STEEL LTD
发明人： HIJIKATA MASATO , MATSUE NOZOMI , OTE AKIRA , KAWAMURA YASUYUKI , EMOTO MITSUO , HITOTSUBASHI NOBORU
IPC分类号： C21C1/06 , F27D1/16
摘要： PURPOSE:To prolong the service life of refractory lining in the molten iron receiving hole of a mixer car after repairing and also to attain the reduction in the repairing cost of the refractory lining. CONSTITUTION:An arched formwork 13 is supported with jack devices 10, 11 arranged on the inside of the mixer car 1 and on the other hand, a gap between inner peripheral face of worn refractory lining 5 and outer peripheral face of the arched formwork 13 is plugged with auxiliary frames 14. Successively, after assembling the molten iron receiving hole formwork 16 on the arched formwork 13, monolithic refractory is poured into an annular space between inner peripheral face of the refractory lining 5 and outer peripheral face of the molten iron receiving hole formwork 16, and also by filling up the space with a vibrator, since the filling degree with the monolithic refractory is improved, the service life of refractory lining after repairing is prolonged and further, since the leakage of the monolithic refractory is not caused, the waste of the monolithic refractory is eliminated.

30. 发明专利

JPH03104812A METHOD FOR REPAIRING STEEL TAPPING HOLE IN CONVERTER 失效
公开(公告)号：JPH03104812A
公开(公告)日：1991-05-01
申请号：JP23968689
申请日：1989-09-14
申请人： KOBE STEEL LTD
发明人： HORIKAWA KENICHI , OTE AKIRA , YASUDA FUMITERU
IPC分类号： C21C5/46
摘要： PURPOSE:To shorten repairing time to a steel tapping hole in a converter by cutting tip part of a sleeve brick to the angle corresponding to tapered part of steel tapping hole in the converter, inserting the sleeve brick into the steel tapping hole and spraying hot spraying material into gap between them. CONSTITUTION:At the time of repairing the steel tapping hole 6 having horizontal structure in the converter, after removing the worn sleeve brick 14, the fresh sleeve brick 14 is inserted. Then, the tip part of the fresh sleeve brick 14 at inner furnace side is beforehand cut to the angle corresponding to the tapered part 11 of steel tapping hole so that the whole tip part of the cutting part of brick 14 becomes the same level as the inner wall surface 12 in the furnace by inserting this, and inner wall of block-state brick 4 is perfectly covered with the sleeve brick 14. Successively, the hot spraying material (e.g. about 59.3% MgO, about 28.4% CaO, about 1.0% SiO2, about 0.3% Al2O3) having fluidity by adding water, is sprayed and filled up into gap formed between the inner wall of agglegate 3 and the sleeve brick 14, and burned and stuck. By this method, exchange of the sleeve brick 14 is easily executed for a short time, and service life of the refractory in the converter is improved.

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