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    SOLID HIGH POLYMER FUEL CELL
    4.
    发明专利
    SOLID HIGH POLYMER FUEL CELL 失效

    公开(公告)号：JP2000294256A

    公开(公告)日：2000-10-20

    申请号：JP10335799

    申请日：1999-04-09

    Applicant: SUMITOMO METAL IND

    Inventor： TARUYA YOSHIO ,  SEKI AKIRA ,  DOI NORIFUMI

    IPC: H01M8/02 ,  C22C38/00 ,  C22C38/46 ,  C22C38/50 ,  H01M8/10

    Abstract: PROBLEM TO BE SOLVED: To extremely reduce poisoning of respective electrode carrying catalysts by an eluting metallic ion by constituting a separator of S, P, V, Ni, Cu, Cr, Mo having the specific composition and ferrite stainless steel including a rare earth element. SOLUTION: Ferrite stainless steel for constituting a separator has the following composition. Respective component elements of S not more than 0.005%, P not more than 0.025%, V not more than 0.2%, Ni not more than 0.2%, Cu not more than 0.2%, Cr of 10.5 to 35%, Mo of 0 to 6% and a rare earth element of 0 to 0.1% are included in wt.%, and Cr+3Mo falls within a range of 10.5 to 43%. The stainless steel can include Si not more than 0.3%, Mn not more than 0.4%, C and N not more than 0.018% respectively and C%+N%

    STAINLESS STEEL SHEET AND ITS PRODUCTION
    5.
    发明专利
    STAINLESS STEEL SHEET AND ITS PRODUCTION 失效

    公开(公告)号：JP2000087259A

    公开(公告)日：2000-03-28

    申请号：JP26196398

    申请日：1998-09-16

    Applicant: SUMITOMO METAL IND

    Inventor： IMAMURA JUNKO ,  TARUYA YOSHIO ,  TAKAHASHI KATSU ,  MASAKI YASUHIRO

    IPC: B21B3/02 ,  B01J35/02 ,  C21D1/26 ,  C21D1/76 ,  C21D9/46 ,  C22C38/00 ,  C22C38/44 ,  C23C24/08 ,  C23C28/00 ,  C23C28/04

    Abstract: PROBLEM TO BE SOLVED: To provide a stainless steel sheet excellent in glare preventability, stain resistance and fingerprint resistance and to provide a method for producing it. SOLUTION: This stainless steel sheet is the one that the surface of a base material having a compsn. contg., by weight, 7 to 35% Cr, 0 to 11% Ni, 0 to 4% Mo, 0.01 to 0.2% N, 0.05 to 2.0% Si, in which index M value expressed by Cr+3Mo+15N} is 10.5 to 50 and having 0.6 to 10 μm surface roughness Ra is provided with an oxidized film contg. 0.3 to 20% SiO2 and having 0.01 to 0.2 μm thickness and a photocatalystic layer contg. 10 to 90% photocatalystic grains and having 0.1 to 10 μm thickness. In the case, as the photocatalystic grains, a mixture of a bonded material of titanium oxide and zirconium titanate is used, its photocatalystic activity is made better. In the case the space between the oxidized film and the photocatalystic layer is provided with a chromate film of 5 to 50 mg/m2 coating weight contg. 50 to 80% silica, its adhesion is made better. More preferably, degreasing with an alkali soln. and bright annealing at 800 to 1200 deg.C in an atmosphere of hydrogen >=8 vol.% and dew point

    STEEL MATERIAL EXCELLENT IN CORROSION RESISTANCE UNDER ENVIRONMENT OF CONDENSATION WATER CONTAINING CARBON DIOXIDE GAS
    7.
    发明专利
    STEEL MATERIAL EXCELLENT IN CORROSION RESISTANCE UNDER ENVIRONMENT OF CONDENSATION WATER CONTAINING CARBON DIOXIDE GAS 失效

    公开(公告)号：JPH08291365A

    公开(公告)日：1996-11-05

    申请号：JP22401895

    申请日：1995-08-31

    Applicant: SUMITOMO METAL IND

    Inventor： HIRAIDE NOBUHIKO ,  TARUYA YOSHIO

    IPC: C22C38/00 ,  C22C38/48

    Abstract: PURPOSE: To produce a steel material reduced in corrosion rate as compared with the plain steel represented by SS400, being much more inexpensive than the stainless steel, capable of preventing the scattering of rust outward because a dense rust layer of superior adhesion is formed, and having excellent weldability. CONSTITUTION: This steel material, excellent in corrosion resistance under the environment of condensation water containing carbon dioxide gas, has a composition which consists of, by weight, 0.1-1.2% Si, 0.1-1.2% Mn, 0.4-6% Cr, 0.1-1% Cu, 0.005-0.1% Al, 0.01-0.05% P, 0.1-2% Ni, =0.4 and in which the value of Pcm represented by Pcm=C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15 (where each symbol of element means its weight percentage) is regulated to

    STAINLESS STEEL EXCELLENT IN MOLTEN CARBONATE CORROSION RESISTANCE
    8.
    发明专利
    STAINLESS STEEL EXCELLENT IN MOLTEN CARBONATE CORROSION RESISTANCE 失效

    公开(公告)号：JPH08225892A

    公开(公告)日：1996-09-03

    申请号：JP3037495

    申请日：1995-02-20

    Applicant: SUMITOMO METAL IND

    Inventor： NISHIYAMA YOSHITAKA ,  TARUYA YOSHIO

    IPC: C22C38/00 ,  C22C38/44 ,  H01M8/02 ,  H01M8/14

    Abstract: PURPOSE: To remarkably improve the service life of a battery by constituting the components of a stainless steel from specified weight % of C, Mn, Cr, Ni, Si, Mn, and the balance substantial Fe. CONSTITUTION: The componental compsn. of a stainless steel is composed of the one contg., by weight, 2%, and the balance substantial Fe with inevitable impurities to obtain this stainless steel excellent in molten carbonate corrosion resistance. Furthermore, 0.1 to 2% Cu is incorporated therein to remarkably improve the corrosion resistance of the severe part in contact with molten carbonate.

    HEAT RESISTANT FERRITIC STAINLESS STEEL
    9.
    发明专利
    HEAT RESISTANT FERRITIC STAINLESS STEEL 失效

    公开(公告)号：JPH08120417A

    公开(公告)日：1996-05-14

    申请号：JP26227494

    申请日：1994-10-26

    Applicant: SUMITOMO METAL IND

    Inventor： HIRAIDE NOBUHIKO ,  HASHIZUME HISANOBU ,  TARUYA YOSHIO

    IPC: C22C38/00 ,  C22C38/50 ,  C22C38/54

    Abstract: PURPOSE: To produce a ferritic stainless steel having excellent high temp. strength and thermal fatigue resistance particularly at 600-650 deg.C exhaust gas temp. as compared with the conventional steel such as SUH409, also having oxidation resistance up to 0.2-0.5% Nb, 0.06-0.2% Ti, =2 kinds among 0.3-2% Mo, 0.1-1% W, 0.1-0.5% V, and 0.0003-0.005% B, satisfying C+N =20, and also satisfying Al>=2N when Al is contained.

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