COPPER-COATED STEEL WIRE, STRANDED WIRE, INSULATED ELECTRIC WIRE, AND CABLE
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United States of America Patent
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Jul 21, 2022
app pub date -
Jun 28, 2019
filing date -
Jun 28, 2019
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Abstract
A copper-coated steel wire includes a core wire made of a steel, and a coating layer made of copper or a copper alloy and covering an outer peripheral surface of the core wire. In a cross section perpendicular to a longitudinal direction of the core wire, the core wire includes a plurality of oxide regions composed of an oxide of an element contained in the steel constituting the core wire, the oxide regions including the outer peripheral surface of the core wire and being disposed apart from each other in a circumferential direction of the core wire.
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