Invention Grant
- Patent Title: High strength, high carbon steel wire and method of producing the same
- Patent Title (中): 高强度,高碳钢丝及其制造方法
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Application No.: US12440687Application Date: 2007-09-14
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Publication No.: US08899087B2Publication Date: 2014-12-02
- Inventor: Akihiro Kaneda
- Applicant: Akihiro Kaneda
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Corporation
- Current Assignee: Bridgestone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2006-249322 20060914
- International Application: PCT/JP2007/067961 WO 20070914
- International Announcement: WO2008/032829 WO 20080320
- Main IPC: B21C1/00
- IPC: B21C1/00 ; D07B1/06 ; C21D8/06 ; B21C1/04

Abstract:
The present invention provides a method which enables a steel wire to be highly strengthened with maintaining good ductility. Specifically, the present invention provides a method comprising: subjecting a high carbon steel wire material having carbon content of 0.85 to 1.10 mass % to a pre-stage drawing process with a predetermined magnitude of drawing, to form an intermediate wire material; subjecting the intermediate wire material formed by the pre-stage drawing process to a patenting treatment in which tensile strength of the wire material is adjusted to a range of 1323 to 1666 MPa; then subjecting the patented steel wire material to a subsequent drawing process including the final drawing.
Public/Granted literature
- US20100050728A1 HIGH STRENGTH, HIGH CARBON STEEL WIRE AND METHOD OF PRODUCING THE SAME Public/Granted day:2010-03-04
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