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1. 发明专利

JP2003093917A METHOD FOR CRUSHING REFRACTORY MATERIAL AFTER USE 审中-公开
公开(公告)号：JP2003093917A
公开(公告)日：2003-04-02
申请号：JP2001296373
申请日：2001-09-27
申请人： SHINAGAWA REFRACTORIES CO
发明人： YOSHIMURA YUJI
IPC分类号： B02C19/18
摘要： PROBLEM TO BE SOLVED: To provide a method for easily crushing refractory material after use. SOLUTION: In this method for crushing refractory material after use, the refractory material 1 after use is stored into storing equipment 3 which has an opening 2, is impregnated with water, thereafter, is charged into a container 6 which is heated together with the storing equipment 3, the refractory material 1 after use is ruptured and, thereafter, the crushed refractory material is permitted to fall through the opening 2 which is disposed on the storing equipment 3.

2. 发明专利

JPS6479054A CARBON CONTAINING REFRACTORY AND PRODUCTION THEREOF REFRACTORY 失效
公开(公告)号：JPS6479054A
公开(公告)日：1989-03-24
申请号：JP23479587
申请日：1987-09-21
申请人： SHINAGAWA REFRACTORIES CO
发明人： ICHIKAWA KENJI , TSUKAMOTO NOBORU , IIDA EIJI , YOSHIMURA YUJI , INOUE JUNICHI
IPC分类号： B22D11/10 , B22D41/54 , C04B35/00 , C04B35/10 , C04B35/103 , C04B35/64 , C04B35/657 , C04B35/80
摘要： PURPOSE:To obtain the titled refractory contg. uniform, fine SiC whiskers in the structure and having superior mechanical strength such as bending strength, thermal shock and spalling resistance with no increase in modulus of elasticity by sintering a molded body of a mixture of Si3N4 with C and a fireproof starting material in a nonoxidizing atmosphere under a prescribed partial pressure of gaseous nitrogen. CONSTITUTION:A mixture consisting of 1-10wt.% fine Si3N4 powder (A) having preferably =90wt.% purity, 1-35wt.% one or more kinds of carbon (B) such as flake graphite, artificial graphite, anthracite and carbon black, and the balance fireproof starting material (C) such as sintered alumina, synthetic mullite, molten silica, stabilized zirconia, silica or SiC is molded. This molded body is sintered at >=1,300 deg.C in a nonoxidizing atmosphere under

3. 发明专利

JP2002097079A BRICK CONTAINING CARBON WHICH HAS LOW HEAT CONDUCTION LAYER ON BACKSIDE AND METHOD OF MANUFACTURING THE SAME 失效
公开(公告)号：JP2002097079A
公开(公告)日：2002-04-02
申请号：JP2000287332
申请日：2000-09-21
申请人： SHINAGAWA REFRACTORIES CO
发明人： YOSHIMURA YUJI , HOSHIYAMA YASUHIRO , TORIGOE ATSUSHI
IPC分类号： B22D41/02 , C04B35/66 , C21C1/06 , F27D1/06
摘要： PROBLEM TO BE SOLVED: To provide a brick containing carbon which can rectify a defect of 'large heat dissipation through a lining of fire-resisting material due to high heat conductivity of the brick containing carbon' and especially can eliminate the defect without causing problems such as 'an increase of application man-hour and a decrease of an internal volume' and/or 'an increase of a brick forming man-hour and a crack initiation in a boundary layer of a different kind of fire-resisting material' and a method of manufacturing the same. SOLUTION: This is 'a brick containing carbon having a low heat conduction layer in its backside' which has at least an oxidized carbon layer 13 from the backside 11 toward an operating side 12 while the carbon content of the layer 13 is 1/3 or less than the carbon content of the operating side 12 which is a part of non-oxidized part 14. The method of manufacturing the brick is to carry out oxidation firing of the backside 11 of the brick at 800 deg.C or more.

4. 发明专利

JP2001129646A SLIDE VALVE APPARATUS 失效
公开(公告)号：JP2001129646A
公开(公告)日：2001-05-15
申请号：JP30914399
申请日：1999-10-29
申请人： SHINAGAWA REFRACTORIES CO
发明人： YOSHIMURA YUJI
IPC分类号： B22D11/10 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide a slide valve apparatus which allows high quality casting eliminating the occurrence of drift in an immersion nozzle bore, the fluctuation in a discharge flow and inclusion of impurity such as slag, mold powder, etc., into a cast piece even when a molten steel flow is throttled. SOLUTION: The slide valve apparatus is provided with fixed plates and a sliding plate consisting of firebrick so as to control a flow rate at a tap hole of a molten metal vessel. The upper ends of pouring holes 5A, 5C of fixed plates 1, 3 and/or the upper end of the pouring hole 5B of sliding plate 2 are provided with inclined notches 6, 7, 8. Each notch communicates with the each pouring hole and is inclined downward and inside of the respective pouring hole. Each inclined notch orientation is constituted to deviate from the center axis S1, S2 or S3 respectively. This constitution makes it possible to generate a spiral flow when tapping the molten metal.

5. 发明专利

JPH11309563A DEVICE FOR DISCHARGING RESIDUAL STEEL AND SLAG IN MOLTEN METAL VESSEL 失效
公开(公告)号：JPH11309563A
公开(公告)日：1999-11-09
申请号：JP11904298
申请日：1998-04-28
申请人： KOBE STEEL LTD , SHINAGAWA REFRACTORIES CO
发明人： KOBAYASHI TAKASHI , TANIGUCHI TADAO , SAEKI TSUNENOBU , YOSHIMURA YUJI , YAMAMOTO KENJI
IPC分类号： B22D11/10 , B22D41/22 , B22D41/28
摘要： PROBLEM TO BE SOLVED: To obtain a discharging device, in which the discharge of residual steel and slag in a molten metal vessel can be obtd. in a small size and at a low cost. SOLUTION: This discharging device is provided with a discharging exclusive square brick 2 which is discharged at the bottom part 1a of the molten metal vessel of a tundish 1, etc., and has a discharging hole 2a for residual steel and slag, and a plate brick having opening hole plate brick 8 which is slidably arranged in the horizontal direction so as to slidingly contact with the sliding surface at the lower end of this square brick and has the opening hole part 8a matchable to the discharging hole 2a for residual steel and slag in the square brick 2, and a non-opening hole plate part 7 which can close the discharging hole. Further, a driving means 10, with which the opening hole part 8a in the opening hole plate brick 8 or the non-opening hole plate part 7 is integrally slid to the matching position in the discharging hole 2a for residual steel and slag, is provided.

6. 发明专利

JPH06142899A LOWER NOZZLE FOR CASTING MOLTEN STEEL 失效
公开(公告)号：JPH06142899A
公开(公告)日：1994-05-24
申请号：JP29940192
申请日：1992-11-10
申请人： SHINAGAWA REFRACTORIES CO
发明人： TSUKAMOTO NOBORU , KURASHINA YUKINOBU , YOSHIMURA YUJI , IIDA EIJI
IPC分类号： B22D11/10 , B22D41/50 , B22D41/54
摘要： PURPOSE:To prolong the life of the lower nozzle by constituting the circumference of a molten steel flow hole of shaped refractories, constituting the circumference thereof of monolithic refractories and protecting the outermost peripheral part with a shell case. CONSTITUTION:The lower nozzle for casting molten steel is used for a ladle or tundish. The circumference of the molten steel flow hole d of such lower nozzle for casting the molten steel is constituted of the shaped refractories c. The circumference of the shaped refractories c is constituted of the monolithic refractories b to form a two-layered construction. The outermost peripheral part is protected with the iron shell case. The shaped refractories are formed of >=1 kinds among alumina graphitic, magnesium graphitic, alumina zirconia graphitic or zirconia refractories. A heat insulating material is embedded between the shaped refractories and the monolithic refractories, The shaped refractories are molded by a hydrostatic press. As a result, the corrosion resistance and spalling resistance are improved and the expansion and loosening of the iron shell are prevented.

7. 发明专利

JPH05105509A ZIRCONIA BRICK 失效
公开(公告)号：JPH05105509A
公开(公告)日：1993-04-27
申请号：JP26937591
申请日：1991-10-17
申请人： SHINAGAWA REFRACTORIES CO
发明人： TSUKAMOTO NOBORU , YOSHIMURA YUJI
IPC分类号： C04B35/48
摘要： PURPOSE:To provide a girconia brick having high mechanical strength and high corrosion resistance as well as improved heat shock resistance, suitable as a stable plate brick or nozzle brick with long lifetime. CONSTITUTION:The objective brick is made up of 3-20wt.% of at least one kind selected from monoclinic zirconia-contg. clinker, composed of 25-80wt.% of ZrO2 and 20-75wt.% of Al2O3, another kind of monoclinic zirconia-contg. clinker composed of 25-80wt.% of ZrO2, 20-75wt.% of Al2O3 and

8. 发明专利

JPH058023A METHOD FOR SEALING SLIDING NOZZLE HOLE 失效
公开(公告)号：JPH058023A
公开(公告)日：1993-01-19
申请号：JP16442191
申请日：1991-07-04
申请人： SHINAGAWA REFRACTORIES CO
发明人： TSUKAMOTO NOBORU , YOSHIMURA YUJI , OKUDA SHIGERU
IPC分类号： B22D11/10 , B22D41/46
摘要： PURPOSE:To improve natural opening hole ratio of a nozzle by preventing flow-out of granular packing material packed into the sliding nozzle hole and formation of solidified layer due to invasion of molten steel at the time of receiving the molten steel. CONSTITUTION:A exposing surface 7A of the granular packing material 7 is covered with an aluminum plate 9. The aluminum plate 9 is softened and melted with latent heat at the time of receiving the molten steel and further, oxidized and hardened, and a coated layer intensely integrated with the surface of granular packing material, is formed. By this coated layer, the flow-out of granular packing material and the invasion of the molten steel at the time of receiving the molten steel are prevented and the natural opening hole is safely and surely executed.

9. 发明专利

JPH02217154A TOOL AND METHOD FOR OPENING NOZZLE IN SLIDE VALVE DEVICE FOR MOLTEN METAL VESSEL 失效
公开(公告)号：JPH02217154A
公开(公告)日：1990-08-29
申请号：JP2988489
申请日：1989-02-10
申请人： SHINAGAWA REFRACTORIES CO
发明人： YAMAMOTO KENJI , OSADA MOTOTSUGU , SHIGETA YOSHIBUMI , TANIGUCHI TADAO , OKUDA SHIGERU , TERASAKI MAMORU , YOSHIMURA YUJI
IPC分类号： B22D41/14 , B22D41/44 , C21C1/00 , F27D3/14
摘要： PURPOSE:To surely open a nozzle and to execute safe work and sure operation by laminating and joining fire-proof sheet, fused member and fire resistant member as nozzle opening tool. CONSTITUTION:Packing material 3 is packed into an insert nozzle 4 and nozzle in a nozzle receiving brick 5 and the upper part thereof is levelled to flat surface with a levelling device 12. At the upper part of the flattened packing material 3, the opening tool sticking mortar 7 as ring-state at the outer edge part is pushed on the upper surface of the packing material 3 engaging an engaging part 14 for assisting insertion at the upper face of the opening tool with a setting device 13 to set this to the nozzle receiving brick 5. Successively, a slide plate 6 in slide valve device fitted to a molten metal vessel 1 containing the molten metal 2 is fully opened and by opening the nozzle, the packing material 3 drops and flows out. By drop and flowing-out of the packing material 3, gap develops at lower face of the nozzle opening tool, and the fire-resistant sheet 8 is broken with head pressure of the molten metal 2 and the molten metal 2 naturally flows out.

10. 发明专利

JP2000167658A POURING TUBE FOR TUNDISH 失效
公开(公告)号：JP2000167658A
公开(公告)日：2000-06-20
申请号：JP34687798
申请日：1998-12-07
申请人： SHINAGAWA REFRACTORIES CO
发明人： YOSHIMURA YUJI , OKAMOTO HARUKI , KUNII HITOSHI
IPC分类号： B22D11/10 , B22D41/00 , B22D41/50 , B22D41/54
摘要： PROBLEM TO BE SOLVED: To obtain a pouring tube having the high sticking resistance of metal on the inner surface of a pouring tube body and spalling resistance and little carbon pickup and the high durability with repeatively usable by fitting an inner surface releasing material formed of mica sheet to the inner surface of the pouring tube body. SOLUTION: This pouring tube used in the used in the case of pouring molten steel into a tundish under non-oxidizing condition, comprises a pouring tube body 11 and an inner surface releasing material 12 formed of the mica sheet fitted to the inside thereof. The inner surface releasing material 12 formed of the mica sheet is the one, in which the mica is pulverized or peeled to a prescribed thickness and pasted with an adhesive and worked to the sheet state. The inner surface releasing material 12 has more excellent wear resistance and the characteristic having the cleavage into the thin sheet state in comparison with a ceramic paper, and the peeling and wearing are reduced by fitting onto the inner surface of the pouring tube body, and the preventing effect to sticking of the metal is held for long time.

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