公开(公告)号：EP2475035A1

公开(公告)日：2012-07-11

申请号：EP10806464.3

申请日：2010-07-28

申请人： Nippon Steel Corporation

发明人： TANAKA, Koki ,  TAKAHASHI, Kazuhiro ,  KIHIRA, Hiroshi ,  TOKUNO, Kiyonori

IPC分类号： H01M8/02 ,  H01M8/10

CPC分类号： H01M8/0206 ,  H01M2/16 ,  H01M2/164 ,  H01M2/1646 ,  H01M2/18 ,  H01M8/0228 ,  H01M2008/1095 ,  Y02E60/50 ,  Y02P70/56 ,  Y10T428/256 ,  Y10T428/265

摘要： The present invention provides titanium material for a separator for solid polymer fuel cell use comprised of titanium which has a surface layer part where conductive compound particles are affixed, which is excellent in contact resistance between the separator surface and carbon paper and in durability, and which is low in cost and superior in recyclability and a method of production of the same. This titanium material for separator use has on the surface of the titanium base material a film comprised of the titanium compound particles made of titanium carbide, titanium nitride, or titanium carbonitride and titanium oxide. The film has a thickness of 0.1 to 1 µm, the coverage rate is an area percentage of 20% or more, and the contents of carbon and nitrogen in the film total 5 to 40 at%. The titanium material for a separator is produced by annealing or shot blasting and pickling.

公开(公告)号：EP3696288A3

公开(公告)日：2020-09-09

申请号：EP20157330.0

申请日：2010-03-19

申请人： Nippon Steel Corporation

发明人： MORISHIGE, Nobusato ,  MURAKAMI, Kenichi ,  HONMA, Hotaka ,  KUBO, Yuji ,  MIZUKAMI, Kazumi ,  TANAKA, Koki ,  TAKEBAYASHI, Seiki

IPC分类号： C21D8/12 ,  B21B3/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/60 ,  H01F1/16 ,  H01F27/25 ,  C22C1/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  H01F41/02

摘要： The present invention relates to a grain oriented electrical steel sheet for a wound core consisting of Si: 2.5 mass% to 4.5 mass%, and a balance of Fe and inevitable impurities, wherein-an average value of a shape ratio represented by "(a length in a rolling direction)/(a length in a width direction)" of a crystal grain is 2 or more,an average value of the lengths in the rolling direction of the crystal grains is 100 mm or more, and a value of a magnetic flux density when a magnetic field of 800 A/m is supplied at a frequency of 50 Hz is 1.94 T or more.

公开(公告)号：EP2412831A1

公开(公告)日：2012-02-01

申请号：EP10756014.6

申请日：2010-03-19

申请人： Nippon Steel Corporation

发明人： MORISHIGE, Nobusato ,  MURAKAMI, Kenichi ,  HONMA, Hotaka ,  KUBO, Yuji ,  MIZUKAMI, Kazumi ,  TANAKA, Koki ,  TAKEBAYASHI, Seiki

IPC分类号： C21D8/12 ,  B21B3/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/60 ,  H01F1/16 ,  H01F27/25

CPC分类号： C21D8/1222 ,  B21B3/02 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1272 ,  C21D2201/05 ,  C22C1/002 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C22C38/60 ,  H01F1/16 ,  H01F41/0233

摘要： A slab having a predetermined composition is heated to 1280°C or more. The slab is hot-rolled to obtain a hot-rolled steel sheet. The hot-rolled steel sheet is annealed to obtain an annealed steel sheet. The annealed steel sheet is cold-rolled to obtain a cold-rolled steel sheet. The cold-rolled steel sheet is decarburization annealed to obtain a decarburization annealed steel sheet. The decarburization annealed steel sheet is coiled in a coil state. The coil-state decarburization annealed steel sheet is finish-annealed. The cold-rolled steel sheet is heated to a temperature of 800°C or more at a rate of 30°C/sec or more and 100°C/sec or less during increasing temperature of the cold-rolled steel sheet in the decarburization annealing or before the decarburization annealing. The decarburization annealed steel sheet is heated at a rate of 20°C/h or less within a temperature range of 750°C or more and 1150°C or less during increasing temperature of the decarburization annealed steel sheet in the finish annealing.

公开(公告)号：EP2096185A1

公开(公告)日：2009-09-02

申请号：EP07832330.0

申请日：2007-11-15

申请人： Nippon Steel Corporation

发明人： KUBO, Yuji ,  NANBA, Eiichi ,  ARAI, Satoshi ,  HONMA, Hotaka ,  MIZUKAMI, Kazumi ,  TANAKA, Koki

IPC分类号： C22C38/00 ,  B21B3/02 ,  C21D8/12 ,  C21D9/46 ,  C22C38/02 ,  C22C38/60 ,  C23C22/00 ,  H01F1/16 ,  H01F1/18

CPC分类号： C22C38/00 ,  C21D8/1266 ,  C21D8/1272 ,  C21D8/1283 ,  H01F1/14775

摘要： Grain-oriented electrical steel sheet excellent in coating adhesion is provided. The steel sheet contains Si: 2 to 7% mass% and has a primary coating composed mainly of forsterite on its surface. A compound (A) containing one or more elements selected from among Ca, Sr and Ba, at least one rare earth metal, and sulfur is incorporated in the primary coating so as to reside in the interface layer between the primary coating and the steel sheet. As a result, occurrence of primary coating exfoliation at regions that are strongly worked during manufacture of a wound core transformer or the like is prevented.

摘要翻译： 在涂层的附着力的晶粒取向电磁钢板优异的被提供。 所述钢板含有Si：2〜7％质量％，具有镁橄榄石的主要在其表面上构成的主涂层。 含有一种或多种元素的化合物（A）选自钙中，Sr和Ba的至少一种稀土金属，和硫在初级涂层被结合，以便在初级涂层和钢板之间驻留在界面层 ， 其结果是，在区域初级涂层剥落的发生也被强烈制造卷绕铁芯变压器的工作期间，或类似物被防止。

公开(公告)号：EP1990855A1

公开(公告)日：2008-11-12

申请号：EP07737753.9

申请日：2007-02-27

申请人： Nippon Steel Corporation ,  Sintobrator, Ltd.

发明人： TANAKA, Koki ,  IKEMATSU, Youichi ,  KIHIRA, Hiroshi ,  KANEKO, Michio ,  HISADA, Wataru ,  ITOH, Tamotsu

IPC分类号： H01M8/02 ,  B24C1/00 ,  B24C1/10 ,  B24C11/00 ,  H01M8/10

CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M8/0208 ,  H01M8/021 ,  H01M8/0213 ,  H01M2008/1095 ,  Y02P70/56

摘要： The present invention provides a separator for a solid polymer type fuel cell superior in low contact resistance of the fuel cell separator surface with carbon paper and flatness and a method of production of the same, that is, a separator for a solid polymer type fuel cell comprising a substrate of stainless steel or titanium or a titanium alloy having a surface layer part on which conductive compound particles are fixed, wherein said conductive compound particles are comprised of one or more types of metal borides, metal carbides, and metal nitrides with an average particle size of 0.01 to 20 µm, said conductive compound particles are present in a region from said substrate surface to a depth of 10 µm, and a distribution of concentration of the metal element forming the conductive compound in said region satisfies relations between a concentration C of the metal element forming the conductive compound and a depth x from the substrate surface shown by equation (C = A·exp(-x/t)+B) and equation (10≤A≤90, -4.0≤B≤1.0, 0.5≤t≤4.0).

摘要翻译： 本发明提供一种固体聚合物型燃料电池用隔膜，该隔膜用于具有碳纸和平坦度的燃料电池隔板表面的低接触电阻及其制造方法，即固体聚合物型燃料电池用隔板 包括不锈钢或钛的基板或具有固定有导电化合物颗粒的表面层部分的钛合金，其中所述导电化合物颗粒由一种或多种金属硼化物，金属碳化物和具有平均值的金属氮化物 所述导电化合物颗粒存在于从所述基板表面到10μm深度的区域中，并且在所述区域中形成导电化合物的金属元素的浓度分布满足浓度C 形成导电化合物的金属元素和由式（1）表示的衬底表面的深度x（C = A·exp（-x / t）+ B）和方程式2（10‰A‰90，-4.0‰B‰1.0，0.5‰t‰4.0）。

公开(公告)号：EP3696288A2

公开(公告)日：2020-08-19

申请号：EP20157330.0

申请日：2010-03-19

申请人： Nippon Steel Corporation

发明人： MORISHIGE, Nobusato ,  MURAKAMI, Kenichi ,  HONMA, Hotaka ,  KUBO, Yuji ,  MIZUKAMI, Kazumi ,  TANAKA, Koki ,  TAKEBAYASHI, Seiki

IPC分类号： C21D8/12 ,  B21B3/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/60 ,  H01F1/16 ,  H01F27/25 ,  C22C1/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  H01F41/02

摘要： The present invention relates to a grain oriented electrical steel sheet for a wound core consisting of Si: 2.5 mass% to 4.5 mass%, and a balance of Fe and inevitable impurities, wherein-an average value of a shape ratio represented by "(a length in a rolling direction)/(a length in a width direction)" of a crystal grain is 2 or more,an average value of the lengths in the rolling direction of the crystal grains is 100 mm or more, and a value of a magnetic flux density when a magnetic field of 800 A/m is supplied at a frequency of 50 Hz is 1.94 T or more.

公开(公告)号：EP3603833A1

公开(公告)日：2020-02-05

申请号：EP17903766.8

申请日：2017-03-31

申请人： Nippon Steel Corporation

发明人： HARAGUCHI, Yohichi ,  SERIZAWA, Yoshihiro ,  HONDA, Tatsuro ,  TACHIBANA, Hisayoshi ,  NAKAGAWA, Susumu ,  TANAKA, Koki ,  ISHITSUKA, Shota

IPC分类号： B21B45/02 ,  B21C51/00

摘要： To make the temperature of a hot rolled steel sheet more uniform in the rolling direction and the sheet width direction by properly cooling the undersurface of the hot rolled steel sheet after finish rolling in a hot rolling step, a cooling device cooling an undersurface of a hot rolled steel sheet that is being transported on transport rolls after finish rolling of a hot rolling step includes: width divided cooling zones that are a plurality of cooling zones into which a whole cooling zone is divided in a sheet width direction, the whole cooling zone being a cooling zone partitioned by all of a width of an undersurface of a sheet transport zone in the sheet width direction and a predetermined length of the undersurface of the sheet transport zone in a rolling direction; divided cooling sections that are a plurality of cooling zones into which each of the width divided cooling zones is divided in the rolling direction; at least one cooling water nozzle spraying cooling water over each of undersurfaces of the divided cooling sections; a switching mechanism switching the cooling water sprayed from the cooling water nozzle between impinging and not impinging on the divided cooling sections; a width direction thermometer measuring a temperature distribution in the sheet width direction; and a controller controlling operation of the switching mechanism based on a result of measurement with the width direction thermometer.

公开(公告)号：EP1990855B1

公开(公告)日：2011-09-21

申请号：EP07737753.9

申请日：2007-02-27

申请人： Nippon Steel Corporation

发明人： TANAKA, Koki ,  IKEMATSU, Youichi ,  KIHIRA, Hiroshi ,  KANEKO, Michio ,  HISADA, Wataru ,  ITOH, Tamotsu

IPC分类号： H01M8/02 ,  B24C1/00 ,  B24C1/10 ,  B24C11/00 ,  H01M8/10

CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M8/0208 ,  H01M8/021 ,  H01M8/0213 ,  H01M2008/1095 ,  Y02P70/56

摘要： This invention provides a separator for a solid polymer fuel cell in which the surface of the fuel cell separator has low resistance of contact with carbon paper and has excellent flatness, and a method for manufacturing the same. The separator for a solid polymer fuel cell comprises a base material of stainless steel or titanium or titanium alloy having a surface layer part with electroconductive compound particles fixed thereonto. The electroconductive compound particles are formed of one or at least two materials selected from metal borides, metal carbides, and metal nitrides, having an average particle diameter of 0.01 to 20 µm. The electroconductive compound particles are present in a region extended from the base material surface to a depth of 10 µm from the surface. In the region, the concentration distribution of the metal element constituting the electroconductive compound satisfies the requirement that the following relationship between the concentration C of the metal element constituting the electroconductive compound and the depth x from the base material surface is satisfied: formula (C = A ⋅ exp(-x/t) + B) and formula (10 ≤ A ≤ 90, -4.0 ≤ B ≤ 1.0 and 0.5 ≤ t ≤ 4.0).

公开(公告)号：EP2337135A1

公开(公告)日：2011-06-22

申请号：EP09817581.3

申请日：2009-07-30

申请人： Nippon Steel Corporation

发明人： TAKAHASHI, Kazuhiro ,  TOKUNO, Kiyonori ,  KIHIRA, Hiroshi ,  TANAKA, Koki ,  KANEKO, Michio

IPC分类号： H01M8/02 ,  C23C8/10 ,  H01M8/10

CPC分类号： H01M8/0206 ,  C23C8/42 ,  H01M8/0226 ,  H01M8/0228 ,  H01M2008/1095 ,  Y02P70/56

摘要： A titanium material for a solid polymer fuel cell separator having a low contact resistance and a method of production of the same, the titanium material having at its surface a surface layer structure in which particles of a Ti compound containing either C or N are dispersed, the particles of Ti compound being covered by titanium oxide and/or metal Ti, characterized in that , when analyzed from the surface by XPS, a Ti2p spectrum of TiO 2 is detected, further, at a Ti2p spectral energy range of TiO and/or a Ti2p spectral energy range of metal Ti, a Ti maximum detection peak height is at least 3 times the standard deviations of the background at the respective spectral energy ranges, and at a C1s spectral energy range and N1s spectral energy range, a maximum detection peak height is less than 3 times the standard deviations of the background at the respective spectral energy ranges of C1s and N1s, are provided.

摘要翻译： 对于具有低的接触电阻和生产中相同的的方法的固体高分子型燃料电池用隔板的钛材料，其具有在其表面上的钛材料中Ti化合物含有C或N中的哪一个颗粒的表面层结构是分散的， Ti化合物的粒子覆盖通过在特征的钛氧化物和/或金属钛，当从由XPS的表面分析中，检测的TiO 2的Ti2p光谱，进而，在TiO和/或的Ti2p光谱能量范围 金属Ti的Ti2p光谱能量范围的Ti最大检测峰高是在respectivement光谱能量范围中的背景和至少3倍的标准偏差，并以的C1s光谱能量区域N 1S光谱能量范围中，最大检测峰 高度在C1s的respectivement光谱能量范围和N 1秒小于3倍的背景的标准偏差，提供了。