Extra-fine copper alloy wire, extra-fine copper alloy twisted wire, coaxial cable, multi-core cable and manufacturing method thereof

A copper alloy wire, coaxial cable technology, applied in the direction of coaxial cable/analog cable, manufacturing coaxial cable, cable/conductor manufacturing, etc., can solve the problems of reduced tensile strength, insufficient bending, insufficient strength, etc.
CN1988055AActive Publication Date: 2007-06-27HITACHI CABLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HITACHI CABLE
Publication Date
2007-06-27

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Abstract

The object of the invention is to provide an extra-fine copper alloy wire, an extra-fine copper alloy twisted wire, an extra-fine insulated wire, a coaxial cable having high intensity, low resistance and high heat tolerance, their manufacturing method and a multicore cable thereof. The extra-fine copper alloy wire has 1 to 3 weight % of silver in the copper, a wire diameter less than 0.025 mm, and a tensile strength of more than 850 MPa, an electrical conductivity of more than 85% IACS after heat treatment; the coaxial cable (20A) is configured that, an inner conductor is formed by an extra-fine copper alloy twisted wire (3) twisted from seven extra-fine copper alloy wires (1), the inner conductor is then peripherally envelopped with a solid insulator (5a) to form an extra-fine insulated wire (10), a plurality of conductor wires (13) are winding in a screw shape on the periphery of the extra-fine insulated wire along a length direction of the extra-fine insulated wire to form an outer conductor (15), thereafter, the outer conductor is envenlopped with a protection layer (17).
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Description

technical field

[0001] The present invention relates to an ultra-fine copper alloy wire having high strength and high electrical conductivity, which is difficult to decrease in strength during heat-loaded operations such as extrusion and soldering, and is excellent in heat resistance. Stranded wires, insulated wires, and coaxial cables thereof, their manufacturing methods, and multi-core cables manufactured using them. Background technique

[0002] Alloys having high strength and high conductivity are generally used as conductor materials used in flexure-resistant cables for electronic equipment (eg, robot cables) or flexure-resistant cables for medical equipment (eg, probe cables).

[0003] Currently, Cu-Sn alloy wires and Cu-Sn-In alloy wires, which can be produced economically by continuous casting and rolling, are widely used in electronic equipment as copper alloy wires manufactured at a mass production level. and conductor materials for bend-resistant cables for medic...

Claims

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