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1. 发明授权

EP3153596B1 QUENCHING APPARATUS AND METHOD FOR PRODUCING METALLIC MATERIAL 有权转让
公开(公告)号：EP3153596B1
公开(公告)日：2018-09-12
申请号：EP15803190.6
申请日：2015-06-01
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HAMASAKI, Yutaka , HAYASHI, Hiroshi , HOSOYA, Shinji , KUWAYAMA, Shinjirou
IPC分类号： C21D1/667 , C21D1/613 , C21D9/08 , B01D19/00
CPC分类号： C21D9/085 , B01D19/0031 , B01D19/02 , C21D1/18 , C21D1/613 , C21D1/64 , C21D1/667
摘要： A quenching apparatus that can enhance hardenability is provided. A circulation apparatus (50) in the quenching apparatus recovers cooling fluid after the cooling fluid is used for quenching, and supplies the cooling fluid to a defoaming bath (431). A laminar flow weir (433) of a defoaming apparatus (4) partitions the defoaming bath (431) into a laminar flow bath (434) and a shallow bath (435). The laminar flow weir (433) is lower than a side wall of the laminar flow bath (434). Cooling fluid from the circulation apparatus (50) is supplied to the laminar flow bath (434), and the cooling fluid is poured into the shallow bath (435) from the laminar flow bath (434) along the laminar flow weir (433). A filter (432) is a plate shape or a sheet shape and has a mesh structure, and covers an opening in a bottom portion of the shallow bath (435). The liquid level height in the shallow bath (435) is less than the height of the laminar flow weir (433). A supply bath (441) accumulates cooling fluid that passes through the filter (432), and supplies the cooling fluid to a cooling apparatus that sprays the cooling fluid onto a metallic material.

2. 发明授权

EP2165788B1 METHOD FOR CONTINUOUSLY CASTING BILLET WITH SMALL CROSS SECTION 有权
公开(公告)号：EP2165788B1
公开(公告)日：2018-08-29
申请号：EP07791273.1
申请日：2007-07-25
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： TSUKAGUCHI, Yuichi , KAWAMOTO, Masayuki , HANAO, Masahito , HIRATA, Atsushi , HAYASHI, Hiroshi
IPC分类号： B22D11/124 , B22D11/115 , B22D11/16 , B22D11/22 , B22D11/18 , B22D11/20
CPC分类号： B22D11/115 , B22D11/16 , B22D11/186 , B22D11/207 , B22D11/225
摘要： The invention provides a method of continuously casting a billet with a small cross section in which the billet has a cross sectional area not more than 500 cm 2 and a molten steel is poured into a mold using a cylindrical immersion nozzle with a single port, being characterized in that the molten steel level in the mold is measured using an eddy current sensor for molten steel level control in a mold, the molten steel surface level is controlled based on the thus-measured value, motion of molten steel in the mold is adjusted by applying electromagnetic stirring, a cooling zone during the final period of solidification is disposed within a certain region ranging from the meniscus to the specific site, a casting speed is adjusted so that the region in which the solid phase ratio at the billet center is 0.3-0.99 may be included in the cooling zone during the final period of solidification, and the specific amount of secondary cooling water, the billet surface temperature at the entrance to the cooling zone during the final period of solidification and the density of cooling water in the cooling zone during the final period of solidification are optimized. By this, billets with a small cross section can be continuously cast for various steel grades while stably and reliably reducing the occurrence of center porosity at the billet center and improving the billet inner quality.

3. 发明公开

EP2808103A1 ELECTROMAGNETIC STIRRING APPARATUS, AND CONTINUOUS CASTING METHOD 失效转让
标题翻译：电磁搅拌连铸
公开(公告)号：EP2808103A1
公开(公告)日：2014-12-03
申请号：EP13833216.8
申请日：2013-08-27
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： IKEDA, Tatsuhiko , OKADA, Nobuhiro , HAYASHI, Hiroshi , YAMAZAKI, Masahiro
IPC分类号： B22D11/115 , B22D11/04
CPC分类号： B22D11/115 , B22D11/041 , B22D11/122
摘要： The present invention provides an electromagnetic stirrer uniformly applying an electromagnetic force to each casting mold. The electromagnetic stirrer of the present invention includes a pair of electromagnetic coils including a casting mold(s) between them, wherein an inner winding is applied to outside of each of two of tooth provided to a core of each of the pair of electromagnetic coils, an outer winding is applied to outside of the inner windings, ways of applying current to be applied to the windings are changed depending on the distance of the electromagnetic coils, and the number of the casting molds n, the external size ϕ, and the width of each of the electromagnetic coils W are defined as n×ϕ

4. 发明授权

EP2808103B1 ELECTROMAGNETIC STIRRING APPARATUS, AND CONTINUOUS CASTING METHOD 失效转让
标题翻译：电磁搅拌装置和连续铸造方法
公开(公告)号：EP2808103B1
公开(公告)日：2018-01-03
申请号：EP13833216.8
申请日：2013-08-27
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： IKEDA, Tatsuhiko , OKADA, Nobuhiro , HAYASHI, Hiroshi , YAMAZAKI, Masahiro
IPC分类号： B22D11/115 , B22D11/04
CPC分类号： B22D11/115 , B22D11/041 , B22D11/122
摘要： The present invention provides an electromagnetic stirrer uniformly applying an electromagnetic force to each casting mold. The electromagnetic stirrer of the present invention includes a pair of electromagnetic coils including a casting mold(s) between them, wherein an inner winding is applied to outside of each of two of tooth provided to a core of each of the pair of electromagnetic coils, an outer winding is applied to outside of the inner windings, ways of applying current to be applied to the windings are changed depending on the distance of the electromagnetic coils, and the number of the casting molds n, the external size Õ, and the width of each of the electromagnetic coils W are defined as n×Õ

5. 发明公开

EP3153596A1 QUENCHING APPARATUS AND METHOD FOR PRODUCING METALLIC MATERIAL 有权转让
标题翻译： LÖCHUNGSVORRICHTUNGUND VERFAHREN ZUR HERSTELLUNG EINES METALLISCHEN MATERIALS
公开(公告)号：EP3153596A1
公开(公告)日：2017-04-12
申请号：EP15803190.6
申请日：2015-06-01
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： HAMASAKI, Yutaka , HAYASHI, Hiroshi , HOSOYA, Shinji , KUWAYAMA, Shinjirou
IPC分类号： C21D1/667 , B01D19/02 , C21D1/18 , C21D1/613
CPC分类号： C21D9/085 , B01D19/0031 , B01D19/02 , C21D1/18 , C21D1/613 , C21D1/64 , C21D1/667
摘要： A quenching apparatus that can enhance hardenability is provided. A circulation apparatus (50) in the quenching apparatus recovers cooling fluid after the cooling fluid is used for quenching, and supplies the cooling fluid to a defoaming bath (431). A laminar flow weir (433) of a defoaming apparatus (4) partitions the defoaming bath (431) into a laminar flow bath (434) and a shallow bath (435). The laminar flow weir (433) is lower than a side wall of the laminar flow bath (434). Cooling fluid from the circulation apparatus (50) is supplied to the laminar flow bath (434), and the cooling fluid is poured into the shallow bath (435) from the laminar flow bath (434) along the laminar flow weir (433). A filter (432) is a plate shape or a sheet shape and has a mesh structure, and covers an opening in a bottom portion of the shallow bath (435). The liquid level height in the shallow bath (435) is less than the height of the laminar flow weir (433). A supply bath (441) accumulates cooling fluid that passes through the filter (432), and supplies the cooling fluid to a cooling apparatus that sprays the cooling fluid onto a metallic material.
摘要翻译：提供了可以提高淬透性的淬火装置。淬火装置中的循环装置（50）在冷却流体用于淬火之后回收冷却流体，并将冷却流体供应到消泡槽（431）。消泡装置（4）的层流堰（433）将消泡槽（431）分隔成层流浴（434）和浅浴（435）。层流堰（433）低于层流浴（434）的侧壁。将来自循环装置（50）的冷却流体供给到层流槽（434），将冷却流体从层流槽（434）沿层流堰（433）注入浅槽（435）。过滤器（432）是板状或片状，并且具有网状结构，并且覆盖浅槽（435）的底部的开口。浅水浴（435）中的液位高度小于层流堰（433）的高度。供给槽（441）积存通过过滤器（432）的冷却流体，并将冷却流体供给到将冷却流体喷射到金属材料上的冷却装置。

6. 发明授权

EP2161086B1 METHOD OF CONTINUOUS CASTING FOR SMALL-SECTION CAST PIECE 有权
标题翻译：法铸造与小的外形铸造
公开(公告)号：EP2161086B1
公开(公告)日：2016-10-19
申请号：EP07791268.1
申请日：2007-07-25
申请人： Nippon Steel & Sumitomo Metal Corporation
发明人： TSUKAGUCHI, Yuichi , KAWAMOTO, Masayuki , HANAO, Masahito , HIRATA, Atsushi , HAYASHI, Hiroshi , ADACHI, Manabu
IPC分类号： B22D11/128 , B22D11/16 , B22D11/20 , B22D11/22 , B22D11/14
CPC分类号： B22D11/1282 , B22D11/141 , B22D11/142 , B22D11/166 , B22D11/225

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