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11. 发明专利

JPH11221665A PLATE FOR SLIDE GATE AND ITS PRODUCTION 失效
公开(公告)号：JPH11221665A
公开(公告)日：1999-08-17
申请号：JP2556498
申请日：1998-02-06
申请人： TOSHIBA CERAMICS CO
发明人： MORITA OSAMU , HARA KIYONORI , KATO HIDEAKI , OKADA KEIKO , MUKOYAMA KENICHI
IPC分类号： B22D11/10 , B22D41/28 , B22D41/30
摘要： PROBLEM TO BE SOLVED: To improve the strength of a plate and to make the restraining force by a clamper uniform by forming the sectional shape of a hoop to be shrinkage fitted to a plate body to a U shape and injecting a packing material into the gap of the shrinkage fitted surfaces via a space formed with the outer peripheral surface of the plate, then solidifying this material. SOLUTION: The hoop 4 made of iron to be shrinkage fitted to the outer peripheral surface 3 of. the plate body 2 is formed to a shape adding a margin for the shrinkage fit to the outer peripheral surface 3 of the plate body 2. The sectional surface shape is formed to the U shape and the recessed part of the U shape after the shrinkage fit forms the space part 7 over the entire periphery of the inner peripheral surface of the hoop 4. The packing material 8 is injected and packed into the space part 7 from an injection hole 8 after the shrinkage fit to fill the spacing G communicating with the space part 7 generated between the plate body 2 and the hoop 4. The packing material is cured by heating and drying. The width of the hoop 4 is specified to 25 to 30 mm, the thickness to >=3 mm and the height of the space part 7 is specified to >=1.5 mm. and

12. 发明专利

JPH10235456A REFRACTORY FOR CONTINUOUS CASTING, AND ITS EXECUTION METHOD 失效
公开(公告)号：JPH10235456A
公开(公告)日：1998-09-08
申请号：JP4435097
申请日：1997-02-27
申请人： TOSHIBA CERAMICS CO
发明人： HARA KIYONORI , KATO HIDEAKI , MORITA OSAMU , ITO KAZUO , TAZOE KEIKO
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To secure the excellent sealability from the joint between a slide plate mechanism and the refractory forming a nozzle to a housing part by continuously and integratedly forming the packing of the cushioning seal packing material with flexibility. SOLUTION: A first cushioning seal packing 2 and a second cushioning seal packing 4' are cut in the same shape as that of a slide plate 7a to form a slide gate mechanism body 7 and in the annular shape from the sealing packing material with flexibility, and when they are combined with each other, a continuous structure is provided. The slide gate mechanism body 7 comprises two flat slide plates 7a, 7b provided with a through hole to form a flow passage 8 of the molten metal in a fixing manner, and a third slide plate 7c which is slidably operated between the surfaces opposite to each other of the plates 7a, 7b and in which a through hole to form the flow passage 8 of the molten metal is formed.

13. 发明专利

JPH09174232A LOWER PLATE FOR SLIDE GATE 失效
公开(公告)号：JPH09174232A
公开(公告)日：1997-07-08
申请号：JP35132995
申请日：1995-12-27
申请人： TOSHIBA CERAMICS CO
发明人： TAZOE KEIKO , YAMADA HIROSHI , MUKOYAMA KENICHI , KATO HIDEAKI , HARA KIYONORI , MORITA OSAMU
IPC分类号： B22D37/00 , B22D41/28
摘要： PROBLEM TO BE SOLVED: To restrain the entrapment of the air caused by voltex and flow speed and to obtain a cast product having little product defect caused by gas bubble by arranging a recessed part for restraining the voltex and the flow speed, adjoined on the sliding surface side of a through-hole and forming the bottom part. SOLUTION: A lower plate 11 has the through-hole 12 as a passage of molten metal and the surrounding of the though-hole 12 is projected to the reverse side to the sliding surface to form the thick thickness. On the sliding surface side 15 of the lower plate 11, the recessed part 23 for restraining the voltex and the flow speed adjoined on the through-hole 12 is formed to the shape opened upward and the side surface in the right side is inclined. By this formation, flow passage cross sectional area of the recessed part 23 forms smaller according to approaching the bottom part to contruct the flow. Therefore, the straightening action of the flow can be further improved.

14. 发明专利

JPH0859337A CASTING REFRACTORY AND CASTING NOZZLE 失效
公开(公告)号：JPH0859337A
公开(公告)日：1996-03-05
申请号：JP20936594
申请日：1994-08-11
申请人： TOSHIBA CERAMICS CO
发明人： KATO HIDEAKI , HARA KIYONORI , SAKAI HIROSHI , OOYA SATOSHI , MORITA OSAMU , ITO KAZUO
IPC分类号： B22D41/32 , B22D41/54 , C04B35/103
摘要： PURPOSE: To obtain a refractory excellent in resistance to oxidation, spalling and thermal shock and to which a packing is not firmly attached by forming the refractory from alumina, silica, carbon, metallic silicon, metallic aluminum, boron carbide and soda glass. CONSTITUTION: The casting refractory consists of 40-70wt.% alumina, 5-20wt.% silica, 5-15wt.% carbon, 1-3wt.% metallic silicon, 0.5-2wt.% metallic aluminum, 0.5-3wt.% boron carbide and 1-5wt.% soda glass. The maximum grain size of the raw material for a casting refractory is preferably controlled to =70wt.% silica.

15. 发明专利

JPH05361A IMMERSION NOZZLE FOR CONTINUOUS CASTING 失效
公开(公告)号：JPH05361A
公开(公告)日：1993-01-08
申请号：JP18010291
申请日：1991-06-25
申请人： TOSHIBA CERAMICS CO , SUMITOMO METAL IND
发明人： HAYAMIZU KUNIO , TOKUNAGA KUNISHIGE , OTSUKA HIROSHI , HARA KIYONORI , SATO ATSUSHI , NAKAJIMA HIDEMASA , KIGUCHI HIROSHI , HIKIMA HIROSHI
IPC分类号： B22D11/10 , B22D41/54 , C04B35/48 , C04B35/52
摘要： PURPOSE:To improve heat shock resistance and erosion resistance to molten slag, etc., at the time of continuously casting a steel slab and to enable casting of the cast slab having no longitudinal crack, etc. CONSTITUTION:At least slag line part in this nozzle contains zirconia and flake graphite, has no biased grain size distribution of the zirconia and consists of refractory having structure, having the flake graphite between large diameter grains, and forms two or more layers of coating layer, in which m.p. is higher as lower the layer becomes, on the outside of the refractory. The heat shock given to the refractory, is relaxed with the two or more layers of the coating layer. Further, the oxidation of the graphite in the refractory during preheating and in a little while after dipping can be prevented. Further, the mixture of fall-out grains from the refractory into mold powder, which is not perfectly formed to slag, can be prevented. During casting, as the grains are closely packed and the large diameter grains are held by the flake graphite, the fall-out of the zirconia grains from the refractory is not developed and this nozzle exerts no influence on the characteristic of molten slag and the longitudinal crack, etc., in the cast slab is not induced.

16. 发明专利

JP2005144517A Slide gate plate 有权
标题翻译：滑盖板
公开(公告)号：JP2005144517A
公开(公告)日：2005-06-09
申请号：JP2003388250
申请日：2003-11-18
申请人： Toshiba Ceramics Co Ltd , 東芝セラミックス株式会社
发明人： KAWARADA KOJI , HARA KIYONORI
IPC分类号： B22D11/10 , B22D41/28
摘要： PROBLEM TO BE SOLVED: To provide a slide gate plate with which oxidation of a sliding surface is restrained and the sealing property can be improved, and the crack from grooves arranged at different positions on the upper and the lower surfaces of a lower plate does not occur and further the mechanical strength caused by the formation of the groove does not decrease.
SOLUTION: In the slide gate plate having a molten metal flowing-through hole penetrated in the thickness direction and the lower plate coming into faced-contact with the upper surface of a flange part in an immersion nozzle, this slide gate plate is provided with the upper groove and the lower groove arranged at the different positions near the surroundings of the molten metal flowing-through hole on the upper and the lower surfaces of the lower plate, and a gas-through path arranged so as to allow the upper groove and the lower groove to communicate with the outer part, and inert gas is supplied into the upper groove and the lower groove through this gas-through path or the vacuum-evacuation is applied.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够抑制滑动面的氧化并且可以提高密封性的滑动闸板，并且在下部的上下表面上的不同位置处的槽的裂纹板不会发生，并且由凹槽的形成引起的机械强度也不会降低。解决方案：在具有在厚度方向上贯穿的熔融金属流通孔的滑动门板和与浸入式喷嘴中的凸缘部的上表面相接触的下板中，该滑动门板为设置有位于下板的上下表面上的熔融金属流通孔周围的不同位置的上槽和下槽，以及设置成允许上板槽和下槽与外部部分连通，并且通过该气体通过路径或真空抽真空将惰性气体供给到上槽和下槽。版权所有（C）2005，JPO＆NCIPI

17. 发明专利

JP2004001012A Sliding gate plate 审中-公开
公开(公告)号：JP2004001012A
公开(公告)日：2004-01-08
申请号：JP2002157353
申请日：2002-05-30
申请人： Toshiba Ceramics Co Ltd , 東芝セラミックス株式会社
发明人： MUKOYAMA KENICHI , HARA KIYONORI
IPC分类号： B22D41/28
摘要： PROBLEM TO BE SOLVED: To provide a durable sliding gate plate without the occurrence of the breakdown in end parts and the crack in plane parts.
SOLUTION: In the sliding gate plate which is used by moving it forwards and backwards in the longitudinal direction of a plate refractory material, a circular-arc part is provided in both end parts in the longitudinal direction of the plate refractory material and a chamfered part is formed in the end part of the side of the sliding surface of one side.
COPYRIGHT: (C)2004,JPO

18. 发明专利

JPH11291025A LOWER NOZZLE FOR SLIDE GATE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH11291025A
公开(公告)日：1999-10-26
申请号：JP11273098
申请日：1998-04-08
申请人： TOSHIBA CERAMICS CO
发明人： MUKOYAMA KENICHI , KATO HIDEAKI , HARA KIYONORI , HIRANO TAKAAKI , OKADA KEIKO , TAKIGAWA HITOSHI
IPC分类号： B22D11/10 , B22D41/50 , B22D41/52
摘要： PROBLEM TO BE SOLVED: To provide a lower nozzle for slide gate which can prevent the enlargement of crack in the diameter direction of a nozzle body. SOLUTION: In this lower nozzle 1 for slide gate composed of the nozzle body 2 having a large diameter part 2a at the upper end part and a protecting iron shell 3 covering almost the whole outer periphery, the nozzle body 2 is formed of a non-burining refractory and many projections 4 are arranged on the inner peripheral surface of the protecting iron shell so as to separate in the axial direction and the peripheral direction, and each projection 4 is bitten into the outer peripheral part of the nozzle body 2.

19. 发明专利

JPH11114666A LOWER NOZZLE FOR SLIDE GATE 失效
公开(公告)号：JPH11114666A
公开(公告)日：1999-04-27
申请号：JP27475997
申请日：1997-10-07
申请人： TOSHIBA CERAMICS CO
发明人： OKADA KEIKO , MUKOYAMA KENICHI , HARA KIYONORI , KATO HIDEAKI , HIRANO TAKAAKI , MORITA OSAMU
IPC分类号： B22D41/50 , B22D11/10 , B22D41/22
摘要： PROBLEM TO BE SOLVED: To prevent a metal case of a lower nozzle for a slide gate from deformation, to maintain a restraining force to a brick forming a nozzle main body for a long time of period and to prevent the enlargement and development of cracks generating in a nozzle tip end part by enclosing the tip end part of the nozzle main body at least double with a reinforcing body and a case body. SOLUTION: A passage FL for molten metal is formed with the lower nozzle 42. Further, the lower nozzle is composed of a cylindrical nozzle main body 2 constituted of a high alumina and zirconium made refractory, alumina and carbon made non-baking refractory or the like, a cylindrical iron made metal case 4 which encloses the outer peripheral part of the nozzle main body 2 via mortar 3, and a cylindrical iron made reinforcing metal case 5 which forms reinforcing material enclosing the outer peripheral part of a tip end part in the metal case 4. That is, the nozzle main body 2 is provided with a tip end part structure which is reinforced with two-ply two-layer metal cases 4, 5. The tip end part of two-layer metal cases 4, 5 is constituted of a shape which is previously squeezed into a tapered shape, whereby the restraining force to the tip end part of the nozzle main body 2 is more effectively maintained.

20. 发明专利

JPH1076353A GAS BLOWING NOZZLE REFRACTORY AND SLIDING NOZZLE PLATE USING IT 失效
公开(公告)号：JPH1076353A
公开(公告)日：1998-03-24
申请号：JP25248396
申请日：1996-09-02
申请人： TOSHIBA CERAMICS CO
发明人： KATO HIDEAKI , HARA KIYONORI , MORITA OSAMU , MUKOYAMA KENICHI , TAZOE KEIKO
IPC分类号： B22D41/42 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To simply form a gas blowing mechanism capable of surely blowing the gas by arranging a cylindrical steel plate in the middle area provided with a gas flow-through hole of a gas blowing nozzle refractory and forming a gas accumulating part. SOLUTION: In a molten metal flow rate control sliding nozzle device, the gas blowing nozzle refractory 5 pouring an inert gas in order to prevent a molten metal pouring hole 2 from forming deposits is installed to the cylinder recessed part 3 provided in a sliding nozzle plate main body 1 via joining part 15, 16 made from a mortal or the like. This refractory 5 is composed of a cylinder part 6 provided with a through-nozzle hole 2a communicating to the pouring hole 2 and a flat plate part 7, and a gas flow-through hole 8 capable of blowing the gas is provided in the middle area of the cylinder part 6. Further, a cylindrical steel plate 9 whose cylinder part is formed into ruggedness is arranged in the middle area, and a gas accumulating part 12 communicating to a gas feeding pipe 14 via a connecting opening 11 is formed.

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