Title:
METHOD FOR PREDICTING DEGREE OF CORROSION OF WEATHER−RESISTANT STEEL
Document Type and Number:
WIPO Patent Application WO/2003/006957
Kind Code:
A1
Abstract:
A predicted degree of corrosion of a coated or noncoated weather−resistant steel is calculated by using meteorological observation data collected at a place where the steel is to be used, extrinsic corrosion information including the amount of flying salt and the amount of sulfur oxide, and intrinsic corrosion information on the components of the weather−resistant steel. The meteorological observation data preferably include the annual wetness time, annual mean wind speed, and annual mean temperature. It is preferable that the corrosion index is calculated, the amount of first−year corrosion of the weather−resistant steel and the stabilization index are estimated from the corrosion index, and the accumulated amount of secular corrosion is calculated.
Inventors:
KIHIRA HIROSHI (JP)
FUJII YASUMORI (JP)
HARADA YOSHIYUKI (JP)
KUSUNOKI TAKASHI (JP)
FUJIKAWA NORIHITO (JP)
TAKEZAWA HIROSHI (JP)
YASUNAMI HIROMICHI (JP)
MATSUOKA KAZUMI (JP)
FUJII YASUMORI (JP)
HARADA YOSHIYUKI (JP)
KUSUNOKI TAKASHI (JP)
FUJIKAWA NORIHITO (JP)
TAKEZAWA HIROSHI (JP)
YASUNAMI HIROMICHI (JP)
MATSUOKA KAZUMI (JP)
Application Number:
PCT/JP2002/007037
Publication Date:
January 23, 2003
Filing Date:
July 11, 2002
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
KIHIRA HIROSHI (JP)
FUJII YASUMORI (JP)
HARADA YOSHIYUKI (JP)
KUSUNOKI TAKASHI (JP)
FUJIKAWA NORIHITO (JP)
TAKEZAWA HIROSHI (JP)
YASUNAMI HIROMICHI (JP)
MATSUOKA KAZUMI (JP)
KIHIRA HIROSHI (JP)
FUJII YASUMORI (JP)
HARADA YOSHIYUKI (JP)
KUSUNOKI TAKASHI (JP)
FUJIKAWA NORIHITO (JP)
TAKEZAWA HIROSHI (JP)
YASUNAMI HIROMICHI (JP)
MATSUOKA KAZUMI (JP)
International Classes:
C22C38/00; G01N17/00; G01N17/04; (IPC1-7): G01N17/00
Other References:
MOTOHARU NAKAMURA: "Kinzoku hyomen gijutsu kyokai", DAI 64 KAI GAKUJUTSU KOEN TAIKAI YOSHISHU, 1981, pages 158 - 159, XP002960737
MOTOHARU NAKAMURA ET AL., KONJOKU HYOMEN GIJUTSU, vol. 33, no. 2, 1982, pages 77 - 82, XP002960738
KANEMORI ISHIHARA ET AL., OKINAWA-KEN KOGYO SHIKENJO KENKYU HOKOKU, no. 20, 1993, pages 51 - 61, XP002960739
YOSHIO TSUJINO ET AL., SHINDO GIJUTSU KENKYUKAISHI, vol. 37, 1998, pages 86 - 93, XP002960740
YOSHIO TSUJINO ET AL., DAI 45 KAI PROCEEDINGS OF JSCE MATERIALS AND ENVIRONMENTS, 1998, pages 375 - 376, XP002960741
SUGURU KITASE ET AL., ANNUAL REPORT OF NAGOYA CITY ENVIRONMENTAL SCIENCE RESEARCH INSTITUTE, no. 25, 1995, pages 47 - 51, XP002960742
EDITED BY SHADAN HOJIN KOZAI KURABU & JAPAN ASSOCIATION OF STEEL BRIDGE CONSTRUCTION: "Taikosei kozai no kyoryo eno tekiyo ni kansuru kyodo kenkyu hokokusho (X) - Bakuro shikenhen no dai 3 kai oyobi dai 4 kai fushokuryo chosa kekka - heiseo 1 nen (1989)", 1989, MINISTERY OF CONSTRUCTION PUBLIC WORKS RESEARCH INSTITUTE, pages: 1 - 63, XP002960743
MOTOHARU NAKAMURA ET AL., KONJOKU HYOMEN GIJUTSU, vol. 33, no. 2, 1982, pages 77 - 82, XP002960738
KANEMORI ISHIHARA ET AL., OKINAWA-KEN KOGYO SHIKENJO KENKYU HOKOKU, no. 20, 1993, pages 51 - 61, XP002960739
YOSHIO TSUJINO ET AL., SHINDO GIJUTSU KENKYUKAISHI, vol. 37, 1998, pages 86 - 93, XP002960740
YOSHIO TSUJINO ET AL., DAI 45 KAI PROCEEDINGS OF JSCE MATERIALS AND ENVIRONMENTS, 1998, pages 375 - 376, XP002960741
SUGURU KITASE ET AL., ANNUAL REPORT OF NAGOYA CITY ENVIRONMENTAL SCIENCE RESEARCH INSTITUTE, no. 25, 1995, pages 47 - 51, XP002960742
EDITED BY SHADAN HOJIN KOZAI KURABU & JAPAN ASSOCIATION OF STEEL BRIDGE CONSTRUCTION: "Taikosei kozai no kyoryo eno tekiyo ni kansuru kyodo kenkyu hokokusho (X) - Bakuro shikenhen no dai 3 kai oyobi dai 4 kai fushokuryo chosa kekka - heiseo 1 nen (1989)", 1989, MINISTERY OF CONSTRUCTION PUBLIC WORKS RESEARCH INSTITUTE, pages: 1 - 63, XP002960743
Attorney, Agent or Firm:
Kokubun, Takayoshi (Ikebukuro TG Homest Building 17-8,
Higashi-Ikebukuro 1-chom, Toshima-ku Tokyo, JP)
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