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1. 发明专利

JPH0468293A ANCHOR BRICK FOR SUPPORTING REFRACTORY LINING AND REFRACTORY LINING SUPPORTING STRUCTURE 失效
公开(公告)号：JPH0468293A
公开(公告)日：1992-03-04
申请号：JP17752290
申请日：1990-07-06
申请人： KAWASAKI STEEL CO
发明人： EBISAWA RITSU
IPC分类号： F27D1/10
摘要： PURPOSE:To prevent the trouble of cracking or leakage of molten steel of an anchor tile due to thermal stress and facilitate the application of a lining by a method wherein an anchor brick is divided into a plurality of anchor tiles and holes are bored on each neighboring anchor tiles to connect the holes mutually through U-shape fittings while abutting sections of the holes and the anchor tiles between each other are connected with normal temperature adhesive agent. CONSTITUTION:An anchor metal 5 and an anchor tile connecting metal 6 are formed of a steel bar, for example, and a lining is constituted of a permanent lining layer 2 of 100 mm thick and an inner lining layer 3 of 130 mm thick. The outside anchor tile 7 and the inside anchor tile 8 are bonded mutually at the bonding end surfaces 9 thereof through two- part epoxy resin adhesive agent of normal temperature setting type mutually while the metal 5 and the connecting metals 6 are bonded to the metal inserting holes 10 of respective anchor tiles 7, 8 through the same adhesive agent. The outside anchor tile 7 is bonded to the inside anchor tile 8 strongly through the anchor tile connecting metal 6 and the bonding surfaces 9 of the anchor tiles whereby the anchor tiles 7, 8 can be fixed to a steel skin 1 by only inserting the anchor metal 5 into the anchor metal receiver 4 of the steel skin 1 and the application of lining castable can be effected very easily.

2. 发明专利

JPH03205346A MAGNESIA CARBON BRICK 失效
公开(公告)号：JPH03205346A
公开(公告)日：1991-09-06
申请号：JP34069789
申请日：1989-12-29
申请人： KAWASAKI REFRACTORIES CO LTD , KAWASAKI STEEL CO
发明人： TSUCHIYA ICHIRO , ISHII HIROMASA , SHINTANI HIROTAKA , KAWAKAMI TATSUO , OKAMOTO TAKAO , EBISAWA RITSU
IPC分类号： C04B35/043 , C04B35/04
摘要： PURPOSE:To obtain brick having excellent oxidation resistance in high PO2 atmosphere by blending a refractory raw material comprising magnesian raw material and carbonaceous raw material with magnesium carbonate powder and forming brick. CONSTITUTION:Magnesia carbon brick comprising 100 pts. wt. refractory raw material composed of 85-99 wt.% magnesian raw material and 15-1wt.% carbonaceous raw material and 0.5-5 pts. wt. magnesium carbonate powder. The magnesium carbonate decomposes into MgO and CO2 at about 800 deg.C, voids resulting from the decomposition absorb thermal expansion and suppress cracks. On the other hand, MgO formed by the decomposition has higher activity than MgO contained in the magnesian raw material and readily causes reaction of MgO+C Mg+CO. Mg formed by the reaction moves to an operation surface, is reacted with O2 in the atmosphere, deposits as MgO and readily forms a surface protecting layer. By action of magnesium carbonate, even if oxidation resistance of magnesia carbon brick is improved, heat-resistant spalling resistance is not reduced.

3. 发明专利

JPS63182263A MONOLITHIC REFRACTORY MATERIAL FOR HARDLY OVERSINTERABLE DRY VIBRATION FORMATION 失效
公开(公告)号：JPS63182263A
公开(公告)日：1988-07-27
申请号：JP1004287
申请日：1987-01-21
申请人： KAWASAKI STEEL CO
发明人： EBISAWA RITSU
IPC分类号： C04B35/66 , F27D1/00 , F27D1/16

4. 发明专利

JPS6053274B2 失效
公开(公告)号：JPS6053274B2
公开(公告)日：1985-11-25
申请号：JP18659482
申请日：1982-10-22
申请人： KAWASAKI STEEL CO
发明人： EBISAWA RITSU , HARITA AKIRA , MORIMOTO TADASHI
IPC分类号： C21C5/44 , F27D1/16

5. 发明专利

JPS5845174A REFRACTORIES AND PROTECTION OF HEATING FURNACE MATERIAL THEREWITH 失效
公开(公告)号：JPS5845174A
公开(公告)日：1983-03-16
申请号：JP14517481
申请日：1981-09-14
申请人： KAWASAKI STEEL CO , AIKOH CO
发明人： EBISAWA RITSU , MORIMOTO TADASHI , TSUREMOTO MASANARI
IPC分类号： C04B35/80 , C21D1/00

6. 发明专利

JPS5662671A MOLTEN METAL FLOWING NOZZLE 失效
公开(公告)号：JPS5662671A
公开(公告)日：1981-05-28
申请号：JP13732079
申请日：1979-10-24
申请人： KAWASAKI STEEL CO
发明人： OGUCHI MASAO , FUJII TETSUYA , EBISAWA RITSU , UEDA NORIHIRO , UESUGI HIROYUKI , EMI TOSHIHIKO
IPC分类号： C21C7/072 , B22D11/10 , B22D41/60
摘要： PURPOSE:To heat the nozzle properly to prevent the molten metal from being solidified in the nozzle and being blocked in, by forming the tundish nozzle for molten steel injection by inside and outside layers different in electric resistance value and by supplying electricity to the nozzle to generate heat. CONSTITUTION:Molten steel 1 in tundish 2 is injected into mold 5 for continuous casting by nozzle 4. In this case, nozzle 4 is constituted with high-conductivity outside layer part 7 and low-conductivity inside layer part 8, and the part, which is soaked in the molten steel, at the nozzle tip is formed with the inside layer material. Alumina graphite refractories are used for inside and outside layers of nozzle 4, and the compound ratio of graphite in outside layer part 7 is layer than that in inside layer part 8. A voltage is applied to copper electrode 9a for nozzle and graphite electrode 9b for molten metal by power source 10 to supply electricity to them, and electricity is flowed from inside layer part 7 to outside layer part 8, and heat is generated by the high electric resistance of outside layer part 8 to heat nozzle 4 at a high temperature, thereby preventing molten metal 1 flowing downward through nozzle 4 from being solidified in the nozzle.

7. 发明专利

JPH05172468A CORE FOR FORMING MONOLITHIC REFRACTORY IN MOLTEN-METAL CONTAINER 失效
公开(公告)号：JPH05172468A
公开(公告)日：1993-07-09
申请号：JP33854891
申请日：1991-12-20
申请人： KAWASAKI STEEL CO
发明人： EBISAWA RITSU , ENDO MASATO
IPC分类号： F27D1/16
摘要： PURPOSE:To enable forming monolithic refractory into a shape as determined by the corresponding part of a container for molten metal by pouring the monolithic refractory into the space between the circumferential inner side of the molten-metal container and the peripheral outer side of hollow blocks built in layers and having a specific external form. CONSTITUTION:A core 10 is formed by attaching in layers a required number of expandable hollow blocks 1 to the peripheral outer side of a core-supporting framework 6. After that, into the space between the peripheral outer side of the elastic hollow blocks 1 and the inner side of a permanent refractory lining 8 which lines the shell 11 of a container monolithic refractory material 9 is poured to form a refractory lining. By this method, a lining is formed without limitation by the shape of the core and the thickness of the lining can be arbitrarily determined.

8. 发明专利

JPH01212712A STEELMAKING FURNACE 失效
公开(公告)号：JPH01212712A
公开(公告)日：1989-08-25
申请号：JP3617688
申请日：1988-02-18
申请人： KAWASAKI STEEL CO , KUROSAKI REFRACTORIES CO
发明人： EBISAWA RITSU , OISHI IZUMI , YAMAMOTO HIROSHI , NAKAMURA OSAMU
IPC分类号： C04B35/043 , C04B35/04 , C21C5/44
摘要： PURPOSE:To reduce heat loss and wear by lining low carbon MgO-C brick having the prescribed heat conductivity and ratio of hot bending strength and cold elastic modules. CONSTITUTION:This steel making furnace is lined with the low carbon MgO-C brick in the whole or a part thereof. Then, the heat conductivity (lambda) of this MgO-C brick is made to lambda =5X10 . The above strength S is measured at >=1,000 deg.C and the above cold elastic modulus E is measured with a sonic velocity method.

9. 发明专利

JPS6451363A PLATE REFRACTORIES FOR SLIDING NOZZLE 失效
公开(公告)号：JPS6451363A
公开(公告)日：1989-02-27
申请号：JP20440387
申请日：1987-08-18
申请人： KAWASAKI REFRACTORIES CO LTD , KAWASAKI STEEL CO
发明人： HASEGAWA SUSUMU , SHINTANI HIROTAKA , KAWAKAMI TATSUO , EBISAWA RITSU
IPC分类号： B22D11/10 , B22D11/00 , B22D37/00 , B22D41/32 , C04B35/00 , C04B35/103
摘要： PURPOSE:To produce a plate refractories for a sliding nozzle superior in corrosion resistance, refractoriness and stability by firing a body containing the respectively prescribed amounts of refractory raw materials consisting of a carbon material and refractory material, zirconium carbide and binder. CONSTITUTION:The mixed body of this invention consists of 100pts.wt. refractory materials containing 1-20pts.wt. carbon material of natural (or synthetic) graphite, etc., 1-15pts.wt. zirconium carbide and 1-20pts.wt. binder, and this mixed body is fired. Well known carbon binders forming carbon bonds through a reduction-firing, e.g., phenol resin, pitch, etc., are all available for the binder of said body. The above-mentioned firing is carried out under reducing atmoshere at 900-1,500 deg.C after the above various materials are mixed and then formed. The obtained plate refractories for the sliding nozzle hold the above-mentioned characteristics, and hence show little possibility of crack formation even when it is used under a severe condition, and is effective for preventing the accident of the molten steel spill.

10. 发明专利

JPS6448649A REFRACTORY COMPOSITION FOR CONTINUOUS CASTING NOZZLE 失效
公开(公告)号：JPS6448649A
公开(公告)日：1989-02-23
申请号：JP20440287
申请日：1987-08-18
申请人： KAWASAKI REFRACTORIES CO LTD , KAWASAKI STEEL CO
发明人： HASEGAWA SUSUMU , SHINTANI HIROTAKA , KAWAKAMI TATSUO , EBISAWA RITSU
IPC分类号： C04B35/00 , B22D11/10 , B22D41/54
摘要： PURPOSE:To obtain a continuous casting nozzle having excellent oxidizing resistance and corrosion resistance by making a refractory composition containing the specific wt. parts of refractory raw material containing the specific wt.% of refractory material and carbonic material, respectively, and zirconium carbide and binder, respectively. CONSTITUTION:The material containing 100 wt. parts of the refractory raw material composing of 60-99wt.% the refractory material and 1-40wt.% the carbonic material, and 1-15wt. parts of the zirconium carbide and 10-50wt. parts of the binder is kneaded, to make the refractory composition. As the refractory material, oxide series material of alumina, silica, etc., and non-oxide series material of silicon nitride, etc., are used and as the carbonic material, graphite, coke, etc., is used. As the zirconium carbide, it is desirable to be the material having more than the prescribed purity. As the binder, phenol resin, tar, etc., forming carbon combination by reducing burning is used. The necessary quantities for the materials are kneaded, formed with an isostatic press, dried and burnt under reducing atmosphere at the prescribed temp. By this method, the continuous casting nozzle having excellent durability is obtd.

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