H - Electricity – 01 – B
Patent
H - Electricity
01
B
80/25, 337/87
H01B 1/02 (2006.01) H01B 5/14 (2006.01) H01B 13/00 (2006.01)
Patent
CA 1312126
ABSTRACT In a copper-clad steel trolley wire, the peripheral surface of a core, formed of a steel wire, is covered by a copper or copper-alloy covering layer. Forty-five to 75 % of the cross-sectional area of the copper-clad steel trolley wire is occupied by the covering layer. The core and the covering layer are metallurgically bonded to each other. Even if the covering layer is worn away so that the core is exposed, corrosion cannot advance at the boundary between the core and the covering layer, since the core and the covering layer are firmly metallurgically bonded to each other. The composite cast rod, obtained by the dip forming method, is hot-rolled under predetermined conditions so that the copper or copper-alloy covering layer is metallurgically bonded to the steel core. Thus, the copper-clad steel trolley wire with a uniform covering layer thickness can be manufactured at low cost.
578684
Aoki Sumihisa
Miyauchi Kenichi
Nagasawa Hiroki
Takayama Teruyuki
Tominaga Haruo
Aoki Sumihisa
Fujikura Ltd.
Marks & Clerk
Miyauchi Kenichi
Nagasawa Hiroki
LandOfFree
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