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Title:
OIL TEMPERED STEEL WIRE EXCELLENT IN COILING WORKABILITY AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2004/067801
Kind Code:
A1
Abstract:
An oil tempered steel wire, characterized in that it comprises a wire material and, formed on the surface thereof, a coating film comprising one or more inorganic salts selected from the group consisting of a sulfate, a silicate and a borate. The coating film optionally further comprises fats and oils and/or a soap exhibiting lubricity. The oil tempered steel wire has a coating film exhibiting satisfactory heat resistance and good lubricity and thus can secure good coiling workability even in the case of a high strength wire or a wire having a heteromorphic section.

Inventors:
Fujiwara, Tadayoshi c/o SHINKO WIRE CO. LTD. (10-1, Nakahamach, Amagasaki-shi Hyogo, 660-0091, JP)
Jinbo, Tetsuo c/o SHINKO WIRE CO. LTD. (10-1, Nakahamach, Amagasaki-shi Hyogo, 660-0091, JP)
Yamamoto, Fumio c/o NHK SPRING CO. LTD. (3131, Miyada-mur, Kamiina-gun Nagano, 399-4301, JP)
Application Number:
PCT/JP2003/016915
Publication Date:
August 12, 2004
Filing Date:
December 26, 2003
Export Citation:
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Assignee:
SHINKO WIRE CO., LTD. (10-1, Nakahamacho Amagasaki-shi, Hyogo, 660-0091, JP)
NHK SPRING CO., LTD. (10 Fukuura 3-chome, Kanazawa-ku Yokohama-shi, Kanagawa, 236-0004, JP)
Fujiwara, Tadayoshi c/o SHINKO WIRE CO. LTD. (10-1, Nakahamach, Amagasaki-shi Hyogo, 660-0091, JP)
Jinbo, Tetsuo c/o SHINKO WIRE CO. LTD. (10-1, Nakahamach, Amagasaki-shi Hyogo, 660-0091, JP)
Yamamoto, Fumio c/o NHK SPRING CO. LTD. (3131, Miyada-mur, Kamiina-gun Nagano, 399-4301, JP)
International Classes:
C23C26/00; B21C37/04; C23C22/62; C23C28/00; C23C30/00; (IPC1-7): C23C22/00; C23C26/00
Foreign References:
JPH1088179A1998-04-07
JP2002363593A2002-12-18
Attorney, Agent or Firm:
Ueki, Kyuichi (Fujita-Toyobo Building 9th Floor, 1-16 Dojima 2-chome, Kita-k, Osaka-shi Osaka, 530-0003, JP)
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