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Patent Searching and Data


Title:
OIL FEED PIPE AND PROCESS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/152537
Kind Code:
A1
Abstract:
Disclosed is an oil feed pipe which is inexpensive and has excellent resistance to corrosion by salt. The oil feed pipe is characterized by comprising a steel pipe member and a fitting part, the steel pipe member being constituted of a ferritic stainless steel which contains, in terms of mass%, up to 0.015% C, 0.01-0.50% Si, 0.01-0.50% Mn, up to 0.050% P, up to 0.010% S, up to 0.015% N, 0.010-0.100% Al, and 13.0-18.0% Cr and further contains 0.03-0.30% Ti and/or 0.03-0.30% Nb. The oil feed pipe is further characterized by having a gap structure part in the surface which is located between the fitting part and the steel pipe member and is exposed to a salt damage environment, the gap structure part having a gap with a spacing of 0.2 mm or more, the inner surfaces of the gap having been coated by electrodeposition coating.

Inventors:
SAKAMOTO, Shunji (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
坂本 俊治 (〒71 東京都千代田区丸の内二丁目6番1号 新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
Application Number:
JP2011/062846
Publication Date:
December 08, 2011
Filing Date:
June 03, 2011
Export Citation:
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Assignee:
Nippon Steel & Sumikin Stainless Steel Corporation (6-1 Otemachi 2-chome, Chiyoda-ku Tokyo, 04, 〒1000004, JP)
新日鐵住金ステンレス株式会社 (〒04 東京都千代田区大手町二丁目6番1号 Tokyo, 〒1000004, JP)
SAKAMOTO, Shunji (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
International Classes:
B60K15/04; C22C38/00; C22C38/28; C22C38/32; F02M37/00; F02M55/02; F16L9/02
Foreign References:
JP2004359187A2004-12-24
JP2008190003A2008-08-21
JP2007217775A2007-08-30
JP2005187878A2005-07-14
JP2010116619A2010-05-27
JP2004330993A2004-11-25
JP2009035813A2009-02-19
JP2009068102A2009-04-02
JP2006137360A2006-06-01
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, 〒1058423, JP)
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Claims: