US3830635A
Expired / Lapsed
US
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Aluminum nickel alloy electrical conductor and method for making same
Assignee: Southwire Co LLC
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Filing: 1971-07-09
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Granted: 1974-08-20
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Expires: 1991-07-09
Abstract
Abstract Aluminum alloy electrical conductors are produced from aluminum base alloys containing from about 0.20 percent to about 1.60 percent by weight nickel, from about 0.30 percent to about 1.30 percent by weight cobalt, optionally up to about 2.00 percent by weight of additional alloying elements, and from about 97.00 percent to about 99.50 percent by weight aluminum. The alloy conductors have an electrical conductivity of at least 57 percent, based on the International Annealed Copper Standard (IACS), and improved properties of increased thermal stability, tensile strength, percent ultimate elongation, ductility, fatigue resistance and yield strength as compared to conventional aluminum alloys of similar electrical properties.
Inventors
- 👤 E Chia
- 👤 R Schoerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:35
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; H01B1/023; C; C22; C22C; C22C21/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49991
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
35 words
The aluminum alloy electrical conductor of claim 1, further including an additional alloying element selected from the group consisting of magnesium and iron, in an amount ranging from 0.001 weight percent to 1.0 weight percent.
Claim 2
Dependent Claim
28 words
The aluminum alloy electrical conductor of claim 1, further including iron as an additional alloying element in an amount ranging from about 0.1 percent to about 0.5 percent.
Claim 3
Dependent Claim
28 words
The aluminum alloy electrical conductor of claim 1, further including magnesium as an additional alloying element in an amount ranging from about 0.1 percent to about 0.5 percent.
Claim 4
Dependent Claim
19 words
The aluminum alloy electrical conductor according to claim 1 wherein the weight percentages of the constituents are as follows:
Claim 5
Dependent Claim
18 words
The aluminum alloy conductor according to claim 1 wherein the weight percentages of the constituents are as follows:
Claim 6
Dependent Claim
19 words
The aluminum alloy electrical conductor according to claim 1, wherein the weight percentages of the constituents are as follows:
Claim 7
Dependent Claim
19 words
The aluminum alloy electrical conductor according to claim 1 wherein the weight percentages of the constituents are as follows:
Claim 8
Dependent Claim
19 words
The aluminum alloy electrical conductor according to claim 1 wherein the weight percentages of the constituents are as follows:
Claim 9
Dependent Claim
19 words
The aluminum alloy electrical conductor according to claim 1 wherein the weight percentages of the constituents are as follows:
Claim 10
Dependent Claim
18 words
The aluminum alloy electrical conductor of claim 1 wherein said conductor is in the form of a rod.
Claim 11
Dependent Claim
19 words
The aluminum alloy electrical conductor according to claim 1 wherein said conductor is in the form of a wire.
Claim 12
Dependent Claim
65 words
An aluminum alloy electrical conductor having a minimum conductivity of 57 percent IACS consisting essentially of from about 0.20 weight percent to about 1.60 weight percent nickel, from about 0.30 weight percent to about 1.30 weight percent cobalt, the remainder being aluminum with associated trace elements, said aluminum alloy electrical conductor having the following properties when measured as a No. 10 A.W.G. fully annealed wire:
Claim 13
Independent Claim
138 words
The method of preparing an aluminum alloy conductor having a minimum conductivity of at least 57% IACS comprising the steps of: A. alloying from about 0.20 weight percent to about 1.60 weight percent nickel, from about 0.30 to about 1.30 weight percent cobalt, the remainder being aluminum with associated trace elements; B. casting the alloy in a moving mold formed between a groove in the periphery of a rotating casting wheel and a metal belt lying adjacent said groove for a portion oF its length; C. hot rolling the cast alloy substantially immediately after casting while the cast alloy is in substantially that condition as cast to form a continuous rod; said aluminum alloy conductor having the following properties when measured as a fully annealed wire: Tensile strength: at least 12,000 psi Yield strength: at least 8,000 psi.
Claim 14
Dependent Claim
27 words
The method according to claim 14 including the further step of drawing said conductor through wire-drawing dies, without annealing the conductor between drawing dies, to form wire.
Claim 15
Dependent Claim
37 words
The method according to claim 14 wherein the alloying step also includes the addition of alloying elements taken from the group consisting of iron and magnesium, in an amount ranging from 0.001 to 1.0 percent, by weight.
Claim 16
Dependent Claim
33 words
The method according to claim 14 wherein the alloying step includes the addition of iron as an alloying element in an amount ranging from about 0.1 percent to about 0.5 percent, by weight.
Claim 17
Dependent Claim
33 words
The method according to claim 14 wherein the alloying step includes the addition of magnesium as an alloying element in an amount ranging from about 0.1 percent to about 0.5 percent, by weight.
Claim 18
Dependent Claim
28 words
The method according to claim 14 wherein the alloying step includes the addition of magnesium in an amount sufficient to yield an alloy having the following weight percentages:
Claim 19
Dependent Claim
28 words
The method according to claim 14 wherein the alloying step includes the addition of iron in an amount sufficient to yield an alloy having the following weight percentages:
Claim 20
Dependent Claim
29 words
The method according to claim 14 wherein the alloying step includes the addition of misch metal in an amount sufficient to yield an alloy having the following weight percentages:
Claim 21
Dependent Claim
30 words
The method according to claim 14 wherein the alloying step includes the addition of niobium and tantalum in an amount sufficient to yield an alloy having the following weight percentages:
Claim 22
Dependent Claim
30 words
The method according to claim 14 wherein the alloying step includes the addition of copper and silicon in an amount sufficient to yield an alloy having the following weight percentages:
Claim 23
Dependent Claim
28 words
The method according to claim 14 wherein the alloying step includes the addition of zirconium in an amount sufficient to yield an alloy having the following weight percentages:
Claim 24
Dependent Claim
44 words
The method according to claim 14 including the further step of: D. drawing the rod through wire-drawing dies, without annealing the rod between drawing dies, to form wire; said wire having the following properties when measured as a No. 10 A.W.G. fully annealed wire:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |