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1. 发明公开

EP2371463A4 MANUFACTURING METHOD FOR ULTRATHIN SEAMLESS METAL PIPE UTILIZING FLOATING PLUG 有权
标题翻译：法制造超薄，无缝金属管使用浮动插头
公开(公告)号：EP2371463A4
公开(公告)日：2015-12-16
申请号：EP09830290
申请日：2009-11-11
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21C1/22 , B21C1/28 , B21C3/00 , B21C3/16
CPC分类号： B21C1/22 , B21C1/24 , B21C3/00 , B21C3/16

2. 发明公开

EP2415535A4 METHOD OF MANUFACTURING ULTRA-THIN-WALLED SEAMLESS METAL TUBE BY COLD ROLLING METHOD 有权
标题翻译：方法用于生产超薄壁无缝金属管冷轧工艺
公开(公告)号：EP2415535A4
公开(公告)日：2013-05-29
申请号：EP10758469
申请日：2010-03-23
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B21/04 , B21B21/06
CPC分类号： B21B21/045 , B21B21/065

3. 发明公开

EP2241385A4 PROCESS FOR MANUFACTURING ULTRATHIN WALL METALLIC PIPE BY COLD DRAWING METHOD 有权
标题翻译：方法用于制造具有超薄壁金属管由冷拔程序
公开(公告)号：EP2241385A4
公开(公告)日：2015-02-25
申请号：EP08704328
申请日：2008-02-01
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21C1/24 , B21C25/04
CPC分类号： B21C1/24 , B21C25/04

4. 发明公开

EP3120942A4 PRODUCTION METHOD FOR SEAMLESS METAL TUBE 有权转让
公开(公告)号：EP3120942A4
公开(公告)日：2017-11-22
申请号：EP15764059
申请日：2015-03-16
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B19/04 , B21B27/02
CPC分类号： B21B19/04 , B21B27/025 , B21B2267/06
摘要： A solid billet is piercing-rolled using a 4 roll-type inclined rolling mill including larger-diameter cone-type main rolls (1, 1') arranged horizontally or vertically to face each other across a pass line (X-X) and smaller-diameter auxiliary rolls (7, 7') arranged vertically or horizontally to face each other similarly across the pass line between the facing main rolls, while maintaining a feed angle (²) and cross angle (³) of the main rolls and a feed angle (²') and cross angle (³') of the auxiliary rolls to be within the ranges: 5° ‰¤ "², ²'" ‰¤ 25°; 3° ‰¤ "³, ³'" ‰¤ 35°; and 10° ‰¤ "² + ³, ²' + ³'" ‰¤ 55°. Preferably, a diameter (do) of the solid billet and a diameter (d) and wall thickness (t) of the hollow piece after the piercing satisfy the relationship: 1.5 ‰¤ -È r /È ¸ ‰¤ 4.5 (where È r = ln(2t/d 0 ), and È ¸ = ln{2(d - t)/d 0 }). With this configuration, it is possible to produce a thin-wall hollow piece at a high reduction rate from a billet made of a less formable material.

5. 发明公开

EP2085159A4 PROCESS FOR MANUFACTURING METAL PIPE WITH EXTREMELY THIN WALL BY COLD ROLLING 有权
标题翻译：一种用于生产金属管极薄墙冷轧
公开(公告)号：EP2085159A4
公开(公告)日：2013-07-17
申请号：EP07850110
申请日：2007-12-05
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B21/00
CPC分类号： B21B21/005 , B21B21/02 , B21B2261/04 , B21B2261/08 , B21B2267/06 , B21B2267/20 , B21C37/30

6. 发明专利

CA2941344A1 METHOD FOR PRODUCING SEAMLESS METAL PIPE 未知
公开(公告)号：CA2941344A1
公开(公告)日：2015-09-24
申请号：CA2941344
申请日：2015-03-16
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B19/04 , B21B27/02
摘要： A 4-roll skew rolling mill, which is configured from large-diameter cone-type main rolls (1, 1') disposed either to the left and right of each other or above and below each other, so as to face each other with a pass line (X-X) therebetween, and small-diameter secondary rolls (7, 7') disposed between the facing main rolls, and either above and below each other or to the left and right of each other, so as to also face each other with the pass line therebetween, is used to bore and roll a solid billet such that the skew angle (ß) and the intersection angle (?) of the main rolls, and the skew angle (ß') and the intersection angle (?') of the secondary rolls are maintained within the ranges 5°=?ß,ß'?=25°, 3°=??,?'?=35°, and 10°=?ß+?,ß'+?'?=55°. It is preferable that the diameter (d0) of the solid billet and the diameter (d) and the wall thickness (t) of the bored hollow piece satisfy the relationship 1.5=-?r/??=4.5 (with the caveat that ?r =1n(2t/d0), and ?? =1n{2(d-t)/d0}). As a result, a thin-walled hollow piece can be produced, with a high working ratio, from a billet of a material which is difficult to work.

7. 发明公开

EP2390016A4 PROCESS FOR PRODUCTION OF SEAMLESS METAL PIPE BY COLD ROLLING 有权
标题翻译：用于生产无缝金属管冷轧
公开(公告)号：EP2390016A4
公开(公告)日：2013-10-16
申请号：EP09834667
申请日：2009-11-25
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B21/00 , B21B23/00
CPC分类号： B21B21/00 , B21B3/00 , B21B3/02 , B21B17/14 , B21B19/10 , B21B21/005 , B21B21/02 , B21B23/00 , B21B2261/04 , B21B2261/08 , B21B2265/14

8. 发明专利

RU2656901C2 СПОСОБ ИЗГОТОВЛЕНИЯ БЕСШОВНОЙ МЕТАЛЛИЧЕСКОЙ ТРУБЫ 未知
公开(公告)号：RU2656901C2
公开(公告)日：2018-06-07
申请号：RU2016140598
申请日：2015-03-16
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B19/04
摘要： Изобретениеотноситсяк областипрокаткитруб. Сплошнуюзаготовкуподвергаютпрокатке-прошивке, используяпрокатныйстанс четырьмянаклоннымивалками, включающийосновныеконическиевалки (1, 1'), имеющиебольшийдиаметр, которыеустановленыпогоризонталиилиповертикалис обращениемдругк другупопереклинии (Х-Х) прокатки, ивспомогательныеконическиевалки (7, 7'), имеющиеменьшийдиаметр, которыеустановленыповертикалиилипогоризонталис обращениемдругк другутакжепопереклинии (Х-Х) прокаткии междурасположеннымис обращениемдругк другуосновнымивалками, приэтомподдерживаяугол (β) подачии угол (γ) раскаткидляосновныхвалков, атакжеугол (β') подачии угол (γ') раскаткидлявспомогательныхвалковв регламентируемыхдиапазонах. Изобретениеобеспечиваетвозможностьизготовлениятонкостеннойполойдеталиприбольшойстепениредукциииззаготовки, состоящейизплохоформуемогоматериала. 3 з.п. ф-лы, 8 ил.

9. 发明专利

CA2941344C METHOD FOR PRODUCING SEAMLESS METAL PIPE 未知
公开(公告)号：CA2941344C
公开(公告)日：2017-12-05
申请号：CA2941344
申请日：2015-03-16
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B19/04 , B21B27/02
摘要： A 4-roll skew rolling mill, which is configured from large-diameter cone-type main rolls (1, 1') disposed either to the left and right of each other or above and below each other, so as to face each other with a pass line (X-X) therebetween, and small-diameter secondary rolls (7, 7') disposed between the facing main rolls, and either above and below each other or to the left and right of each other, so as to also face each other with the pass line therebetween, is used to bore and roll a solid billet such that the skew angle (ß) and the intersection angle (?) of the main rolls, and the skew angle (ß') and the intersection angle (?') of the secondary rolls are maintained within the ranges 5°=?ß,ß'?=25°, 3°=??,?'?=35°, and 10°=?ß+?,ß'+?'?=55°. It is preferable that the diameter (d0) of the solid billet and the diameter (d) and the wall thickness (t) of the bored hollow piece satisfy the relationship 1.5=-?r/??=4.5 (with the caveat that ?r =1n(2t/d0), and ?? =1n{2(d-t)/d0}). As a result, a thin-walled hollow piece can be produced, with a high working ratio, from a billet of a material which is difficult to work.

10. 发明专利

ES2536183T3 Procedimiento de fabricación de tuberías de metal con pared extremadamente delgada mediante laminado en frío 未知
公开(公告)号：ES2536183T3
公开(公告)日：2015-05-21
申请号：ES07850110
申请日：2007-12-05
申请人： NIPPON STEEL & SUMITOMO METAL CORP
发明人： HAYASHI CHIHIRO
IPC分类号： B21B21/00
摘要： Un procedimiento de producción de un tubo metálico de pared ultra delgada mediante un procedimiento de laminación en frío en el que se aplica un laminador de paso de peregrino en frío, en el que un espesor de pared t se reduce para realizar la elongación mientras que un diámetro de centro de espesor de pared, que es un diámetro medio de los diámetros exterior e interior de un material de tubo, se expande usando un par de rodillos (12), que tiene un matriz (13) de ranura cónica cuyo diámetro se reduce gradualmente desde un lado de entrada de acoplamiento del rodillo (12) hacia un lado de salida de acabado del mismo, y una barra (14) de mandril cónico, cuyo diámetro se expande gradualmente desde un lado de entrada de acoplamiento de la barra de mandril cónico hacia un lado de salida de acabado del mismo, la expansión se realiza de acuerdo con los diámetros exteriores y espesores de pared de una carcasa hueca (1) y el tubo laminado terminado, caracterizado porque el espesor de pared t se reduce para realizar una elongación en el mismo momento en que el diámetro exterior se reduce y el diámetro interior se expande mientras que un margen de expansión del diámetro interior se ajusta más grande que un margen de reducción del diámetro exterior.

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