US3861452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of thin, continuous steel wires
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1973-11-30
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Granted: 1975-01-21
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Expires: 1993-11-30
Abstract
Abstract Thin, continuous steel wires are produced by solidification of a jet of liquid steel projected into a cooling fluid. The solidication is initiated and accelerated by the presence of oxygen in the cooling fluid and by selection of the relative amounts of silicon and manganese in the liquid steel so as to provide solid silica as the oxidation product which is principally formed.
Inventors
- 👤 Jean-Marie Massoubre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:50
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
22 words
The method as defined by claim 1 wherein silicon is from 0.5 to 3% and manganese is from practically 0 to 1.5%.
Claim 2
Dependent Claim
19 words
The method defined by claim 1 wherein the oxidizing cooling medium contains oxygen, an oxidizing compound or mixture thereof.
Claim 3
Dependent Claim
15 words
The method defined by claim 3 wherein the oxidizing compound is water or carbon dioxide.
Claim 4
Dependent Claim
16 words
The method defined by claim 3 wherein the oxidizing cooling medium is hydrogen and water mist.
Claim 5
Dependent Claim
120 words
In the method for the manufacture of a thin, continuous steel wire comprising projecting a jet of liquid steel into a gaseous cooling medium to solidify and fix the jet in cylindrical shape, the improvement which comprises said gaseous cooling medium being an oxidizing cooling medium and said liquid steel being a steel having silicon (y) and manganese (x) contents, expressed in percentages by weight with respect to the iron content of the steel, such that for any value of (x) the value for (y) is greater than that given by the equation y 0.55 x2 -0.18x + 0.1 whereby a solid silica precipitate is the oxidation product which is principally formed and acts as A solidification initiator and accelerator.
Claim 6
Dependent Claim
23 words
The method defined by claim 6 wherein silicon (y) is from 0.5 to 3% and manganese (x) is from practically 0 to 1.5%.
Claim 7
Dependent Claim
19 words
The method defined by claim 6 wherein the oxidizing cooling medium contains oxygen, an oxidizing compound or mixture thereof.
Claim 8
Dependent Claim
15 words
The method defined by claim 8 wherein the oxidizing compound is water or carbon dioxide.
Claim 9
Dependent Claim
16 words
The method defined by claim 8 wherein the oxidizing cooling medium is hydrogen and water mist.
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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |