| US 7,491,891 B2 | ||
| Composite wire for wire-harness and process for producing the same | ||
| Hiromu Izumida, Hyogo (Japan); Nozomu Kawabe, Hyogo (Japan); Teruyuki Murai, Hyogo (Japan); and Shinei Takamura, Hyogo (Japan) | ||
| Assigned to Sumitomo (SEI) Steel Wire Corp., Hyogo (Japan); Autonetworks Technologies, Ltd., Mie (Japan); Sumitomo Wiring Systems, Ltd., Mie (Japan); and Sumitomo Electric Industries, Ltd., Osaka (Japan) | ||
| Appl. No. 11/596,924 PCT Filed May 19, 2004, PCT No. PCT/JP2004/006724 § 371(c)(1), (2), (4) Date Nov. 17, 2006, PCT Pub. No. WO2005/112046, PCT Pub. Date Nov. 24, 2005. |
||
| Prior Publication US 2007/0221396 A1, Sep. 27, 2007 | ||
| Int. Cl. H01B 5/00 (2006.01) | ||
| U.S. Cl. 174—126.2 | 3 Claims |
| 1. A composite wire for wire-harness comprising a first element wire which comprises 0.01-0.25 mass % C, 0.01-0.25 mass %
N, 0.5-4.0 mass % Mn, 16-20 mass % Cr, 8.0-14.0 mass % Ni, and the balance of Fe and impurities and satisfies that a C+N content
is in the range of 0.15 mass %≤C+N≤0.30 mass %, and a second element wire comprising at least one material selected from the
group consisting of copper, copper alloy, aluminum, and aluminum alloy, the first element wire and the second element wire
being twisted together,
wherein the first element wire is drawn in a wire drawing process at a reduction in area of between 5% and 98%, to be adjusted
to a predetermined diameter of wire and thereafter is heat-treated at a temperature of between 950° C. and 1,150° C. for a
retention time of between 0.5 sec. and 60 sec. so that a tensile strength of the first element wire to be twisted together
with the second element wire is in the range of between 800 N/mm2 and less than 1,200 N/mm2.
|