Title:
STEEL WIRE AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/1998/053134
Kind Code:
A1
Abstract:
A steel wire, 0.10-0.40 mm in diameter, obtained by subjecting a high-carbon (0.70-0.90 wt.%) steel wire material to heat treatment and wire drawing, wherein its tensile strength and test values of special repeated torsional tests satisfy a predetermined relation; and a method of manufacturing the same. A high strength steel wire which has so high a ductility as to substantially prevent the wire from being broken even during wire twisting, and which rarely encounters a decrease in the ductility even after the wire has been subjected to age hardening by heating, is obtained, and a method of manufacturing the same is economical.
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Inventors:
KANEKO YOSHIKAZU (JP)
OBANA NAOHIKO (JP)
FUJITA MASUHIRO (JP)
MASUBUCHI HIDEKI (JP)
KOBAYASHI TOSHIYUKI (JP)
OBANA NAOHIKO (JP)
FUJITA MASUHIRO (JP)
MASUBUCHI HIDEKI (JP)
KOBAYASHI TOSHIYUKI (JP)
Application Number:
PCT/JP1998/002198
Publication Date:
November 26, 1998
Filing Date:
May 20, 1998
Export Citation:
Assignee:
BRIDGESTONE METALPHA CORP (JP)
KANEKO YOSHIKAZU (JP)
OBANA NAOHIKO (JP)
FUJITA MASUHIRO (JP)
MASUBUCHI HIDEKI (JP)
KOBAYASHI TOSHIYUKI (JP)
KANEKO YOSHIKAZU (JP)
OBANA NAOHIKO (JP)
FUJITA MASUHIRO (JP)
MASUBUCHI HIDEKI (JP)
KOBAYASHI TOSHIYUKI (JP)
International Classes:
B21C1/00; D07B1/06; B21C37/04; B29D30/38; C21D8/06; (IPC1-7): D07B1/06
Foreign References:
JPH07197390A | 1995-08-01 | |||
JPH06184966A | 1994-07-05 | |||
JPH08260096A | 1996-10-08 | |||
JPH08284082A | 1996-10-29 | |||
JPH07305285A | 1995-11-21 |
Other References:
See also references of EP 1013819A4
Attorney, Agent or Firm:
Honda, Ichiro (5-7 Nishikanda 2-chom, Chiyoda-ku Tokyo, JP)
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