US4663242A
Expired / Lapsed
US
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Method for producing a metal alloy strip
Assignee: Olin Corp
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Filing: 1984-01-12
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Granted: 1987-05-05
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Expires: 2004-01-12
Abstract
Abstract A method for producing a metallic strip is disclosed. A metallic melt containing above about 20% by weight of iron is formed into a strip so that fine iron particles are distributed throughout. The strip may be rolled to elongate the iron particles.
Inventors
- 👤 Michael J. Pryor
- 👤 Michael L. Santella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:23
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/64; G11B5/65; G11B5/653; B; B22; B22D; B22D11/00; B22D11/06; B22D11/0611; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12097; Y10T428/12104; Y10T428/12465; Y10T428/12486
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
80 words
A metallic strip consisting essentially of: about 20 to about 60% by weight of iron and the balance being a material selected from the group consisting of copper and alloys thereof, said material forming a matrix; said metallic strip being characterized by having fine acicular particles of iron or iron alloy distributed substantially homogeneously throughout said matrix, said acicular particles having a width between about 0.05 to about 0.5 microns and an aspect ratio of between about 4:1 to 15:1.
Claim 2
Dependent Claim
80 words
A metallic strip consisting essentially of: about 20 to about 60% by weight of iron and the balance being a material selected from the group consisting of copper and alloys thereof, said material forming a matrix; said metallic strip being characterized by having fine acicular particles of iron or iron alloy distributed substantially homogeneously throughout said matrix, said acicular particles having a width between about 0.05 to about 0.5 microns and an aspect ratio of between about 4:1 to 15:1.
Claim 3
Dependent Claim
31 words
The metallic strip of claim 1 further consisting essentially of an effective amount for enhancing magnetic performance of up to about 10% by weight of a transition metal other than iron.
Claim 4
Dependent Claim
21 words
The metallic strip of claim 2 wherein said transition metal is selected from the group consisting of nickel, cobalt, and managanese.
Claim 5
Dependent Claim
20 words
The metallic strip of claim 1 wherein said acicular particles have an aspect ratio of between about 5:1 to 7:1.
Claim 6
Dependent Claim
42 words
The metallic strip of claim 4 further comprising said strip having a longitudinal axis extending therethrough and said acicular particles having a longitudinal axis extending therethrough, said longitudinal axis of said acicular particles being aligned with the longitudinal axis of said strip.
Claim 7
Dependent Claim
19 words
The metallic strip of claim 5 further comprising said strip having been plated with a protective covering of copper.
Claim 8
Dependent Claim
16 words
The metallic strip of claim 6 further comprising a stain inhibitor covering the plated copper covering.
Claim 9
Dependent Claim
71 words
A metallic strip consisting essentially of: about 20 to about 60% by weight of iron and the balance being a material selected from the group consisting of copper and alloys thereof, said material forming a matrix; said metallic strip being characterized by having fine, substantially equiaxed particles of iron or iron alloy distributed substantially homogeneously throughout said matrix, said equiaxed particles having a width between about 0.05 to about 0.5 microns.
Claim 10
Dependent Claim
71 words
A metallic strip consisting essentially of: about 20 to about 60% by weight of iron and the balance being a material selected from the group consisting of copper and alloys thereof, said material forming a matrix; said metallic strip being characterized by having fine, substantially equiaxed particles of iron or iron alloy distributed substantially homogeneously throughout said matrix, said equiaxed particles having a width between about 0.05 to about 0.5 microns.
Claim 11
Dependent Claim
31 words
The metallic strip of claim 8 further consisting essentially of an effective amount for enhancing magnetic performance of up to about 10% by weight of a transition metal other than iron.
Claim 12
Dependent Claim
22 words
The metallic strip of claim 9 further comprising said transition metal being selected from the group consisting of nickel, cobalt, and manganese.
Claim 13
Dependent Claim
18 words
The metallic strip of claim 10 further comprising said strip being plated with a protective covering of copper.
Claim 14
Dependent Claim
16 words
The metallic strip of claim 11 further comprising a stain inhibitor covering the plated copper covering.
Claim 15
Dependent Claim
97 words
As an article of manufacture, a product formed by the method of producing a metallic strip comprising the steps of: providing a melt of metal alloy consisting essentially of about 20 to about 60% by weight of iron and the balance being a material selected from the group consisting of copper and alloys thereof, said material forming a matrix; and rapidly solidifying said melt into said metallic strip having sustantially fine, equiaxed particles of iron or iron alloy distributed substantially homogeneously throughout said matrix said equiaxed particles having a width between about 0.05 to about 0.5 microns.
Claim 16
Dependent Claim
97 words
As an article of manufacture, a product formed by the method of producing a metallic strip comprising the steps of: providing a melt of metal alloy consisting essentially of about 20 to about 60% by weight of iron and the balance being a material selected from the group consisting of copper and alloys thereof, said material forming a matrix; and rapidly solidifying said melt into said metallic strip having sustantially fine, equiaxed particles of iron or iron alloy distributed substantially homogeneously throughout said matrix said equiaxed particles having a width between about 0.05 to about 0.5 microns.
Claim 17
Dependent Claim
38 words
The article of manufacture of claim 13 further including the step of adding to said melt an effective amount for enhancing magnetic performance of up to about 10% by weight of a transition metal or other than iron.
Claim 18
Dependent Claim
22 words
The article of manufacture of claim 14 including the step of rolling said strip to elongate the iron or iron alloy particles.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |