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1. 发明专利

JP2007234244A Separator for polymer electrolyte fuel cell and its manufacturing method 有权
标题翻译：聚合物电解质燃料电池分离器及其制造方法
公开(公告)号：JP2007234244A
公开(公告)日：2007-09-13
申请号：JP2006050934
申请日：2006-02-27
申请人： Nippon Steel Corp , Sinto Brator Co Ltd , 新日本製鐵株式会社 , 新東ブレーター株式会社
发明人： TANAKA YUKIMOTO , IKEMATSU YOICHI , KIHIRA HIROSHI , KANEKO MICHIRO , HISADA WATARU , ITO TAMOTSU
IPC分类号： H01M8/02 , B05D3/12 , B05D7/14 , 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： PROBLEM TO BE SOLVED: To provide a separator for a polymer electrolyte fuel cell low in contact resistance between the surface of the fuel cell separator and carbon paper and high in flatness; and to provide the manufacturing method of the separator for the polymer electrolyte fuel cell.
SOLUTION: In the separator for the polymer electrolyte fuel cell comprising a base material of stainless steel, titanium, or titanium alloy, having a surface layer part on which conductive compound particles are adhered, the conductive compound particles are one kind or two kinds or more of a metal boride, a metal carbide, or a metal nitride, having a mean particle size of 0.01-20 μm, the conductive compound particles are present in a region from the surface of the base material to depth of 10 μm, the concentration distribution of the metal element constituting the conductive compound satisfies the relation between the concentration C of the metal element constituting the conductive compound and the depth x from the base material surface represented by formula (1) (C=A exp(-x/t)+B) and formula (2) (10≤A≤90, -4.0≤B≤1.0, 0.5≤t≤4.0).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种聚合物电解质型燃料电池用隔板，其在燃料电池隔板的表面与碳纸之间的接触电阻低，平坦度高; 并提供用于固体高分子型燃料电池的隔膜的制造方法。解决方案：在具有粘附导电化合物颗粒的表面层部分的不锈钢，钛或钛合金基材的聚合物电解质燃料电池用隔板中，导电性化合物粒子是一种或两种多种或多种平均粒径为0.01〜20μm的金属硼化物，金属碳化物或金属氮化物，导电性化合物粒子存在于从基材的表面到深度10μm的区域中，构成导电性化合物的金属元素的浓度分布满足构成导电性化合物的金属元素的浓度C与由式（1）表示的基材表面的深度x（C = A exp（-x / t）+ B）和式（2）（10≤A≤90，-4.0≤B≤1.0,0.5≤t≤4.0）。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2005317470A Operation method of fuel cell 有权
标题翻译：燃料电池操作方法
公开(公告)号：JP2005317470A
公开(公告)日：2005-11-10
申请号：JP2004136742
申请日：2004-04-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KANEKO MICHIRO , KIHIRA HIROSHI , KIMURA KEN
IPC分类号： H01M8/10 , H01M8/04
CPC分类号： Y02E60/521
摘要： PROBLEM TO BE SOLVED: To reduce corrosion of stainless steel which is applied as a separator by controlling operation conditions of a fuel cell.
SOLUTION: When operating the fuel cell which generates electric power via a solid polymer membrane which is a proton conductor, by making the fuel cell generate the electric power so that pH of a water solution in the fuel cell is in the range of 1 or more and 6 or less, and so that electrode electric potential (V) of the stainless separator on the cathode electrode side is E value or less which is expressed in a [formula 1] by the standard hydrogen electrode standard, the corrosion of the stainless separator is reduced.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过控制燃料电池的操作条件来减少作为隔膜施加的不锈钢的腐蚀。解决方案：当通过作为质子导体的固体聚合物膜来操作产生电力的燃料电池时，通过使燃料电池产生电力，使得燃料电池中的水溶液的pH在 1以上且6以下，并且使得阴极电极侧的不锈钢隔板的电极电位（V）为通过标准氢电极标准在[式1]中表示的E值以下，不锈钢分离器减少。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004332098A Steel having excellent weatherability 有权
公开(公告)号：JP2004332098A
公开(公告)日：2004-11-25
申请号：JP2003336914
申请日：2003-09-29
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KIMURA MASAO , KIHIRA HIROSHI
IPC分类号： C23C18/12 , C22C38/00 , C22C38/08 , C22C38/50 , C23C22/73 , C23C30/00
摘要： PROBLEM TO BE SOLVED: To provide a steel coated with a surface layer in which the condition (valence) of iron is controlled, and having excellent weatherability.
SOLUTION: In the steel having excellent weatherability, the surface of an Ni-containing iron based alloy material comprising, by mass, 0.2 to 10% Ni, and the balance Fe with inevitable impurities is coated with a film mainly consisting of FeOOH and Fe
3 O
4 , and the average valence of iron in the film is >2.77 to

4. 发明专利

JP2002256463A STEEL MATERIAL SUPERIOR IN WEATHER RESISTANCE 失效
公开(公告)号：JP2002256463A
公开(公告)日：2002-09-11
申请号：JP2001041418
申请日：2001-02-19
申请人： NIPPON STEEL CORP
发明人： KIMURA MASAO , SUZUKI TAMAKI , SUZUKI SHIGERU , KIHIRA HIROSHI , ITO MINORU
IPC分类号： C23F11/00 , C22C38/00 , C22C38/18 , C22C38/42
摘要： PROBLEM TO BE SOLVED: To provide a steel material superior in weather resistance. SOLUTION: The steel material superior in weather resistance having an adhesive rust layer on the surface, is characterized in that a peak ratio R (the third peak/the first peak) of radial distribution around an iron atom and/or a chromium atom in the adhesive rust is 0.3 or more. The steel material is further characterized in that a ratio 'A' (dCr /dFe ) of the second-neighbor interatomic distance dCr in the radial distribution around the chromium atom in the adhesive rust, against the second-neighbor interatomic distance dFe in the radial distribution around the iron atom of goethite (α-FeOOH) is 0.65-0.95. Preferably, the radial distribution is based on the radial structure function obtained by Fourier transformation of a wide area X-ray absorption fine- structure spectrum in a K absorption edge of the Fe or Cr atom, and the steel material includes one or two kinds of 0.1% or more Cu and 0.1% or more Ni by mass% in iron matrix.

5. 发明专利

JP2001325969A SEPARATOR FOR SOLID POLYMER FUEL CELL, GAS PASS SPACER, AND SOLID POLYMER FUEL CELL 失效
公开(公告)号：JP2001325969A
公开(公告)日：2001-11-22
申请号：JP2000143104
申请日：2000-05-16
申请人： NIPPON STEEL CORP
发明人： KIHIRA HIROSHI , KIKUCHI MASAO , UCHIUMI TORU
IPC分类号： H01M8/02 , H01M8/10
摘要： PROBLEM TO BE SOLVED: To provide a separator for solid polymer fuel cells, a gas passage spacer, and a solid polymer fuel cell. SOLUTION: The separator for solid polymer fuel cells which is made from stainless steel or titanium, and which consists of a flat section of both ends, and a corrugated-sheet section between the flat section, has two or more holes which serve as a cooling water passage or a gas passage at a flat section. The gas passage spacer which is used for this separator in piles, has a corrugated-sheet-shape seal section which is fitted with the above separator corrugated-sheet section, and can secure air-tightness at a side end. The solid polymer fuel cell make use of them.

6. 发明专利

JP2001047105A METAL SHEET INCONSPICUOUS IN FINGER PRINT 失效
公开(公告)号：JP2001047105A
公开(公告)日：2001-02-20
申请号：JP22877599
申请日：1999-08-12
申请人： NIPPON STEEL CORP
发明人： KIHIRA HIROSHI , KIKUCHI MASAO
IPC分类号： B21B1/22
摘要： PROBLEM TO BE SOLVED: To provide a metal sheet inconspicuous in a finger print. SOLUTION: The metal sheet has a stock surface in which the ratio of small surfaces having a normal forming an angle below 5 deg. with respect to the normal of the marcroscopic average surface is =0.5 μm, and the surface is replaced by the small surfaces of 1 μm pitch, and has a transparent coating layer of >=0.2 μm in mean film thickness.

7. 发明专利

JP2000063981A ATMOSPHERE CORROSION RESISTING STEEL SHOWING BLACKISH COLOR TONE FROM INITIAL STAGE OF RUSTING AND EXCELLENT IN EXTERNAL APPEARANCE CHARACTERISTIC AND STABILITY OF COLOR TONE 失效
公开(公告)号：JP2000063981A
公开(公告)日：2000-02-29
申请号：JP24905698
申请日：1998-08-20
申请人： NIPPON STEEL CORP
发明人： MIZOGUCHI SHIGERU , KIHIRA HIROSHI
IPC分类号： C22C38/00 , C22C38/08 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an atmosphere corrosion resisting steel showing a blackish subdued rust color from the initial stage of exposure, that is, from the initial stage of construction of an outdoor steel structure, excellent in corrosion resistance, and capable of withstanding use in an uncoated state. SOLUTION: The steel has a composition consisting of, by weight, 0.01-0.15% C, 0.01-1.0% Si, 0.8-3.0% Mn, 0.05-1.0% Cu, 0.25-5.0% Ni, >0.01-0.2% Al, and the balance iron with inevitable impurities satisfying Mn+Ni >=1.8%, and further containing, if necessary, one or >=2 kinds among 0.25-5.0% Cr, 0.25-1.0% Mo, 0.03-1.0% P, 0.01-0.05% Nb, 0.01-0.1% V, 0.005-0.05% Ti, and 0.01-0.1% Zr, or/and 0.001-0.01%, in total of either or both of rare earth element and Ca.

8. 发明专利

JPH10306350A AMMONIA-TYPE ABSORPTION HEAT PUMP 失效
公开(公告)号：JPH10306350A
公开(公告)日：1998-11-17
申请号：JP11163297
申请日：1997-04-28
申请人： NIPPON STEEL CORP
发明人： TAKADA TAKESHI , KIHIRA HIROSHI
IPC分类号： F25B15/00 , C22C38/00 , C22C38/18 , C22C38/50 , F25B15/04 , F28F21/08
摘要： PROBLEM TO BE SOLVED: To provide an ammonia-type absorption heat pump minimal in the amount of corrosion product resultant from the corrosion occurring, due to high temp. aqueous ammonia, in a material constituting a heat exchanger using ammonia and also minimal in the peeling of the corrosion product. SOLUTION: A ferritic stainless steel, containing, by weight, 10.0-31.0% Cr, or an austenitic stainless steel, containing, by weight, 16.0-25.0% Cr and >=6.0% Ni is used as a component material. Further, ammonia, where a substance, containing, by weight, 0.01-5.0% phosphoric acid radical or silicic acid radical, or 0.05-10.0% hydrogen peroxide is added, is used as a heating medium. By this method, the amount of corrosion product and the amount of peeling of corrosion product can be reduced, and the ammonia-type absorption heat pump free from clogging of system can be obtained.

9. 发明专利

JPH101750A STAINLESS STEEL FOR AMMONIA-WATER SYSTEM ABSORPTION CYCLE HEAT EXCHANGER 失效
公开(公告)号：JPH101750A
公开(公告)日：1998-01-06
申请号：JP14932096
申请日：1996-06-11
申请人： NIPPON STEEL CORP
发明人： KIHIRA HIROSHI , TAKADA TAKESHI , MATSUHASHI AKIRA , YAMAMOTO AKIO , TANAHASHI HIROYUKI
IPC分类号： F28F21/08 , C22C38/00 , C22C38/22
摘要： PROBLEM TO BE SOLVED: To obtain a stainless steel for ammonia-water system absorption cycle heat exchanger, excellent in stress corrosion cracking resistance and uniform corrosion resistance in high-temp. and high-pressure aqueous ammonia, by specifying the composition of a stainless steel. SOLUTION: The stainless steel for ammonia-water system absorption cycle heat exchanger has a composition consisting of, by weight,

10. 发明专利

JPH08285492A AMMONIA RESISTANT HEAT EXCHANGER 失效
公开(公告)号：JPH08285492A
公开(公告)日：1996-11-01
申请号：JP8579695
申请日：1995-04-11
申请人： NIPPON STEEL CORP
发明人： KIHIRA HIROSHI , TANAHASHI HIROYUKI , UEDA MASANORI
IPC分类号： B23P15/26 , C22C19/05 , F28F21/08
摘要： PURPOSE: To effect miniaturization, and attain an enough durability in the atmosphere containing ammonia in a stainless steel plate laminate heat exchanger where a stainless steel plate is laminated, braded, and joined, and a hole in the stainless steel plate is used as a flow passage by using the stainless steel plate and a brazing material of specific compositions. CONSTITUTION: A stainless steel plate laminate heat exchanger is adapted such that a drilled stainless steel plate is laminated and alternately joined and holes drilled in the stainless steel plate or those coupled therewith are used as a fluid flow passage. Here, a ferrite stainless steel plate containing 10wt.% or more of chrome is joined using a brazing material consisting of 0.06wt.% or less of C, 0.02wt.% or less of P, 5.0wt.% or less of Fe, 3.0 to 11.0wt.% of Si, 3.5wt.% or less of B, 10.0 to 20.0wt.% of Cr, and a remaining part of inevitable impurities and nickel.

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