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21. 发明专利

ES2248434T3 LAMINA DE ACERO INOXIDABLE BLANDO CON UNA EXCELENTE TRABAJABILIDAD. 未知
公开(公告)号：ES2248434T3
公开(公告)日：2006-03-16
申请号：ES02008138
申请日：2002-04-11
申请人： NISSHIN STEEL CO LTD
发明人： ISHIKAWA HANJI , OTSUKA MASATO , SUZUKI SATOSHI , TANAKA HIDEKI , KATSUKI JUNICHI , YAMAUCHI TAKASHI
IPC分类号： C21D8/04 , C22C38/00 , C22C38/42 , C22C38/44 , C22C38/58
摘要： Lámina de acero inoxidable blando con una excelente trabajabilidad y forjabilidad en frío que tiene un índice de estabilidad de la austenita Md30, que se define mediante la fórmula (1), ajustado en un intervalo de -90 a -20, un índice de capacidad de formación de defectos de apilado SFI, que se define mediante la fórmula (2), ajustado en un valor no inferior a 30 y una concentración de Cu de los precipitados no superior al 1, 0% en masa, para mantener el contenido de Cu disuelto en la matriz en un 1, 0-4, 0% en masa, en la que un 70% en masa o más de las inclusiones no metálicas precipitadas en la matriz son MnOuSiO2uAl2O3 que contiene no menos del 15% en masa de SiO2 y no más del 40% en masa de Al2O3. Md30 (ºC) = 551-462(C+N)-9, 2Si-8, 1Mn-29(Ni+Cu)-13, 7Cr- 18, 5Mo (1) SFI (mJ/m2) = 2, 2Ni+6Cu-1, 1Cr-13Si-1, 2Mn+32 (2)

22. 发明专利

DE60114839D1 未知
公开(公告)号：DE60114839D1
公开(公告)日：2005-12-15
申请号：DE60114839
申请日：2001-07-26
申请人： NISSHIN STEEL CO LTD
发明人： ISHIKAWA HANJI , MORIKAWA SHIGERU , NAGOYA TOSHIROU , ADACHI TOSHIRO , HIRAMATSU NAOTO , SUZUKI SATOSHI
IPC分类号： B60K15/03 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/58 , C23C8/18 , C23C30/00 , B60K15/00
摘要： A fuel tank for a motor vehicle is fabricated from an austenitic stainless steel sheet having elongation of 50% or more after fracture by a uniaxial stretching test with a work-hardening coefficient of 4000N/mm or a ferritic stainless steel sheet having elongation of 30% or more after fracture with Lankford value of 1.3 or more. The stainless steel sheets are reformed to a complicated shape of a fuel tank without work flaws such as cracks or break-down. Excellent corrosion-resistance of stainless steel itself is maintained in the fabricated fuel tank. Consequently, the proposed fuel tank is used without diffusion of gasoline to the open air over a long term.

23. 发明专利

DE60131083D1 未知
公开(公告)号：DE60131083D1
公开(公告)日：2007-12-06
申请号：DE60131083
申请日：2001-07-26
申请人： NISSHIN STEEL CO LTD
发明人： OTSUKA MASATO , ISHIKAWA HANJI , SUZUKI SATOSHI , ADACHI TOSHIRO
IPC分类号： F16L9/02 , B60K15/04 , C21D7/12 , C21D8/04 , C21D8/10 , C22C38/04 , C22C38/18 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50
摘要： The present application relates to a fuel-filler tube made from a pipe of a ferritic stainless steel with elongation of 30% or more by a uniaxial tensile test and Lankford value (r-value) of 1.2 or more.

24. 发明专利

ES2250443T3 DEPOSITO DE CARBURANTE EN ACERO INOXIDABLE PARA AUTOMOVIL. 未知
公开(公告)号：ES2250443T3
公开(公告)日：2006-04-16
申请号：ES01954341
申请日：2001-07-26
申请人： NISSHIN STEEL CO LTD
发明人： ISHIKAWA HANJI , MORIKAWA SHIGERU , NAGOYA TOSHIROU , ADACHI TOSHIRO , HIRAMATSU NAOTO , SUZUKI SATOSHI
IPC分类号： B60K15/03 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/58 , C23C8/18 , C23C30/00 , B60K15/00
摘要： Depósito de carburante para un vehículo a motor que es fabricado con una chapa de acero inoxidable autenítico que presenta un alargamiento del 50% o más después de la fractura por una prueba de estirado uniaxial con un coeficiente de endurecimiento por trabajo de 4000 N/mm2 o menos.

25. 发明专利

ES2213661T3 未知
公开(公告)号：ES2213661T3
公开(公告)日：2004-09-01
申请号：ES01121680
申请日：2001-09-14
申请人： NISSHIN STEEL CO LTD
发明人： OTSUKA MASATO , ISHIKAWA HANJI
IPC分类号： B21C37/16 , B21D41/02
摘要： At first, an open end of an original metal pipe M is plastically deformed to such the coaxially expanded state M1 that axial wall length L2 at a side to be eccentrically expanded is longer than axial wall length L1 at the opposite side to be expanded without eccentricity. The coaxially expanded open end M1 is then plastically deformed to an eccentrically expanded state M2 by forcibly inserting an eccentrically expanding punch 20 into the coaxially expanded open end M1. The eccentrically expanding punch 20 has a boundary 23 between a conical tip 21 and a cylindrical body 22 inclined with a predetermined angle &thetas; so as to bring the cylindrical body 22 into contact with an inner wall of the coaxially expanded open end M1 at a side to be eccentrically expanded earlier than the opposite side to be expanded without eccentricity. When the coaxially expanded open end M1 is plastically deformed to an eccentrically expanded state M2, metal flow is suppressed at a side to be eccentrically expanded, but metal flow from the opposite side to be expanded without eccentricity to the former side is promoted. Consequently, the open end is plastically deformed to the eccentrically expanded state M2 without thickness deviation along a circumferential direction.

26. 发明专利

AU7667901A Stainless steel fuel tank for automobile 未知
公开(公告)号：AU7667901A
公开(公告)日：2002-02-13
申请号：AU7667901
申请日：2001-07-26
申请人： NISSHIN STEEL CO LTD
发明人： ISHIKAWA HANJI , MORIKAWA SHIGERU , NAGOYA TOSHIROU , ADACHI TOSHIRO , HIRAMATSU NAOTO , SUZUKI SATOSHI
IPC分类号： B60K15/03 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/58 , C23C8/18 , C23C30/00 , B60K15/00
摘要： A fuel tank for a motor vehicle is fabricated from an austenitic stainless steel sheet having elongation of 50% or more after fracture by a uniaxial stretching test with a work-hardening coefficient of 4000N/mm or a ferritic stainless steel sheet having elongation of 30% or more after fracture with Lankford value of 1.3 or more. The stainless steel sheets are reformed to a complicated shape of a fuel tank without work flaws such as cracks or break-down. Excellent corrosion-resistance of stainless steel itself is maintained in the fabricated fuel tank. Consequently, the proposed fuel tank is used without diffusion of gasoline to the open air over a long term.

27. 发明专利

MY129808A A SOFT STAINLESS STEEL SHEET EXCELLENT IN WORKABILITY 未知
公开(公告)号：MY129808A
公开(公告)日：2007-05-31
申请号：MYPI20021128
申请日：2002-03-28
申请人： NISSHIN STEEL CO LTD
发明人： ISHIKAWA HANJI , OTSUKA MASATO , SUZUKI SATOSHI , TANAKA HIDEKI , KATSUKI JUNICHI , YAMAUCHI TAKASHI , HIRAMATSU NAOTO
IPC分类号： C22C38/42 , C21D8/04 , C22C38/00 , C22C38/44 , C22C38/58
摘要： A NEWSOFT STAINLESS STEEL SHEET HAS AN A AUSTENITE-STABILITY INDEX MD30 CONTROLLED IN A RANGE OF -120 TO -10 AND A STACKING FAULT FORMABILITY INDEX SFI CONTROLLED NOT LESS THAN 30 AND INVOLVES PRECIPITATES WHOSE CU CONCENRATION IS CONTROLLED NOT MORE THAN 1.0O AS TO MAINTAIN CONCENTRATION OF DISSOLVED CU AT 1-5THE STAINLESS STEEL SHEET PREFERABLY CONTAINS UP TO 0.06(C+N), UP TO 2.0I, UP TO 5MN, 15-20R, 5-9NI, 1.0-4.0U, UP TO 0.003A1, UP TO 0.005, AND OPTIONALLY ONE OR MORE OF UP TO 0.5Y, UP TO 0.5NB, UP TO 0.5ZR, UP TO 0.5V, UP TO 3.0MO, UP TO 0.02REM (RARE EARTH METALS) AND UP TO 0.03A. THE STAINLESS STEEL SHEET CAN BE PLASTICALLY DEFORMED TO AN OBJECTIVE SHAPE WITHOUT ANY CRACKS EVEN AT A PART HEAVILY-WORKED PART BY MULTI-STAGE DEEP DRAWING OR COMPRESSION DEFORMING. @Md30(°C)=551 - 462(C+N) - 9.2Si - 8.1Mn - 29(NI + CU) - 13.7CR - 18.5MO SFI (MJ/M2) = 2.2Ni + 6CU - 1.1CR - 13SI - 1.2Mn +32

28. 发明专利

CA2357724C A METHOD OF MANUFACTURING A METAL PIPE WITH AN ECCENTRICALLYEXPANDED OPEN END 未知
公开(公告)号：CA2357724C
公开(公告)日：2005-09-13
申请号：CA2357724
申请日：2001-09-24
申请人： NISSHIN STEEL CO LTD
发明人： ISHIKAWA HANJI , OTSUKA MASATO
IPC分类号： B21C37/16 , B21D41/02
摘要： At first, an open end of an original metal pipe M is plastically deformed to such the coaxially expanded state M1 that axial wall length L2 a t a side to be eccentrically expanded is longer than axial wall length L1 at t he opposite side to be expanded without eccentricity. The coaxially expanded open end M1 is then plastically deformed to an eccentrically expanded state M2 by forcibly inserting an eccentrically expanding punch 20 into the coaxially expanded open end M1. The eccentrically expanding punch 20 has a boundary 23 between a conical tip 21 and a cylindrical body 22 inclined with a predetermined angle 0 so as to bring the cylindrical body 22 into contact with an inner wall of the coaxially expanded open end M1 at a side to be eccentrically expanded earlier than the opposite side to be expanded without eccentricity. When the coaxially expanded open end M1 is plastically deformed to an eccentrically expanded state M2, metal flow is suppressed at a side to be eccentrically expanded, but metal flow from the opposite side to be expanded without eccentricity to the former side is promoted. Consequently, the open end is plastically deformed to the eccentrically expanded state M2 without thickness deviation along a circumferential direction.

29. 发明专利

DE60101657T2 未知
公开(公告)号：DE60101657T2
公开(公告)日：2004-11-11
申请号：DE60101657
申请日：2001-09-14
申请人： NISSHIN STEEL CO LTD
发明人： OTSUKA MASATO , ISHIKAWA HANJI
IPC分类号： B21C37/16 , B21D41/02
摘要： At first, an open end of an original metal pipe M is plastically deformed to such the coaxially expanded state M1 that axial wall length L2 at a side to be eccentrically expanded is longer than axial wall length L1 at the opposite side to be expanded without eccentricity. The coaxially expanded open end M1 is then plastically deformed to an eccentrically expanded state M2 by forcibly inserting an eccentrically expanding punch 20 into the coaxially expanded open end M1. The eccentrically expanding punch 20 has a boundary 23 between a conical tip 21 and a cylindrical body 22 inclined with a predetermined angle &thetas; so as to bring the cylindrical body 22 into contact with an inner wall of the coaxially expanded open end M1 at a side to be eccentrically expanded earlier than the opposite side to be expanded without eccentricity. When the coaxially expanded open end M1 is plastically deformed to an eccentrically expanded state M2, metal flow is suppressed at a side to be eccentrically expanded, but metal flow from the opposite side to be expanded without eccentricity to the former side is promoted. Consequently, the open end is plastically deformed to the eccentrically expanded state M2 without thickness deviation along a circumferential direction.

30. 发明专利

DE60101657D1 未知
公开(公告)号：DE60101657D1
公开(公告)日：2004-02-05
申请号：DE60101657
申请日：2001-09-14
申请人： NISSHIN STEEL CO LTD
发明人： OTSUKA MASATO , ISHIKAWA HANJI
IPC分类号： B21C37/16 , B21D41/02
摘要： At first, an open end of an original metal pipe M is plastically deformed to such the coaxially expanded state M1 that axial wall length L2 at a side to be eccentrically expanded is longer than axial wall length L1 at the opposite side to be expanded without eccentricity. The coaxially expanded open end M1 is then plastically deformed to an eccentrically expanded state M2 by forcibly inserting an eccentrically expanding punch 20 into the coaxially expanded open end M1. The eccentrically expanding punch 20 has a boundary 23 between a conical tip 21 and a cylindrical body 22 inclined with a predetermined angle &thetas; so as to bring the cylindrical body 22 into contact with an inner wall of the coaxially expanded open end M1 at a side to be eccentrically expanded earlier than the opposite side to be expanded without eccentricity. When the coaxially expanded open end M1 is plastically deformed to an eccentrically expanded state M2, metal flow is suppressed at a side to be eccentrically expanded, but metal flow from the opposite side to be expanded without eccentricity to the former side is promoted. Consequently, the open end is plastically deformed to the eccentrically expanded state M2 without thickness deviation along a circumferential direction.

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