EP0023362A1
Expired / Lapsed
EP
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A method for manufacturing an electrically conductive copper alloy material
Assignee: Toshiba Corp
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Filing: 1980-07-29
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Granted: —
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Expires: 2000-07-29
Abstract
Abstract An electrically conductive copper alloy material for such as electric wires is disclosed whose grain size number is adjusted to be not less than 7 (JIS G 0551) by making an ingot of a copper alloy containing Cr and/or Zr, hot-working it to a wire of suitable diameter, and repeatedly annealing and cold-working it.
Inventors
- 👤 Seika Matidori
- 👤 Masato Sakai
- 👤 Teshima Koichi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 13:49
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; H01B1/026; C; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
21 words
An electrically conductive copper alloy material whose grain size number is not less than 7 as defined by JIS G 0551.
Claim 2
Dependent Claim
21 words
An electrically conductive copper alloy material whose grain size number is not less than 7 as defined by JIS G 0551.
Claim 3
Dependent Claim
23 words
A copper alloy material as recited in claim 1 wherein the grain is of the shape obtained with rolling finish or annealing finish.
Claim 4
Dependent Claim
29 words
A copper alloy material as recited in claim 1 wherein the composition of the copper alloy is 0.05 - 1.5% by weight of chrome and the balance of copper.
Claim 5
Dependent Claim
29 words
A copper alloy material as recited in claim 1 wherein the composition of the copper alloy is 0.3 - 1.5% by weight of chrome and the balance of copper.
Claim 6
Dependent Claim
29 words
A copper alloy material as recited in claim 1 wherein the composition of the copper alloy is 0.05 - 0.5% by weight of zirconium and the balance of copper.
Claim 7
Dependent Claim
29 words
A copper alloy material as recited in claim 1 wherein the composition of the copper alloy is 0.1 - 0.5% by weight of zirconium and the balance of copper.
Claim 8
Dependent Claim
36 words
A copper alloy material as recited in claim 1 wherein the composition of the copper alloy is 0.05 - 1% by weight of chrome, 0.05 - 0.5% by weight of zirconium, and the balance of copper.
Claim 9
Dependent Claim
36 words
A copper alloy material as recited in claim 1 wherein the composition of the copper alloy is 0.3 - 1% by weight of chrome, 0.1 - 0.5% by weight of zirconium, and the balance of copper.
Claim 10
Dependent Claim
37 words
A copper alloy material as recited in claim 3, 5, or 7 wherein the copper alloy further includes at least one element of silicon, germanium, boron, and magnesium in an amount of 0.005 - 0.1% by weight.
Claim 11
Dependent Claim
24 words
An electrically conductive wire consisting of a copper alloy of not less than 7 in grain size number as defined by JIS G 0551.
Claim 12
Dependent Claim
24 words
An electrically conductive wire consisting of a copper alloy of not less than 7 in grain size number as defined by JIS G 0551.
Claim 13
Dependent Claim
25 words
An electrically conductive twisted wire consisting of a copper wire of not less than 7 in grain size number as defined by JIS G 0551.
Claim 14
Dependent Claim
25 words
An electrically conductive twisted wire consisting of a copper wire of not less than 7 in grain size number as defined by JIS G 0551.
Claim 15
Independent Claim
58 words
A method for manufacturing an electrically conductive copper alloy material characterized by making an ingot, hot-working so as to form the material into a wire of a suitable diameter and thereafter cold-working without subjecting the wire to solution treatment so as to obtain a grain size number of not less than 7 as defined by JIS G 0551.
Claim 16
Independent Claim
58 words
A method for manufacturing an electrically conductive copper alloy material characterized by making an ingot, hot-working so as to form the material into a wire of a suitable diameter and thereafter cold-working without subjecting the wire to solution treatment so as to obtain a grain size number of not less than 7 as defined by JIS G 0551.
References Cited (Backward Citations)
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