Patent US4087674A successfully refreshed from Google Patents.
US4087674A
Expired / Lapsed
US
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Steel wire for gas shielded welding
Assignee: Nippon Steel Corp
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Filing: 1977-02-08
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Granted: 1978-05-02
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Expires: 1997-02-08
Abstract
Abstract A steel wire for short circuiting gas shielded transfer welding which comprises 0.5 to 1.0% of Si, 1.0 to 2.0% of Mn, not more than 0.015% of P, S and N, respectively, 0.07 to 0.20% of C and not more than 0.020% of total oxygen, the total oxygen being the sum of the oxygen within the wire plus the oxygen adhered to the surface of the wire being more than about 0.004%.
Inventors
- 👤 Kazumaru Kohira
- 👤 Shiro Aoki
- 👤 Taizi Nagatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:59
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A steel gas shielded transfer welding wire for use under short circuiting transfer conditions consisting essentially of 0.5 to 1.0% of Si, 1.0-2.0% Mn, not more than 0.015% of P, S and N, respectively, 0.07 to 0.20% of C and not more than 0.020% of total oxygen, said total oxygen content being the sum of the oxygen within the wire plus any oxygen adhered to the surface of the wire, the amount of said oxygen within the wire being more than 0.004%, with the balance being iron, and wherein the distribution index of the number of any non-metallic inclusions in the longitudinal cross section of the wire is not higher than 1.0 as calculated by the following formula: ##EQU2##
Claim 2
Dependent Claim
119 words
A steel gas shielded transfer welding wire for use under short circuiting transfer conditions consisting essentially of 0.5 to 1.0% of Si, 1.0-2.0% Mn, not more than 0.015% of P, S and N, respectively, 0.07 to 0.20% of C and not more than 0.020% of total oxygen, said total oxygen content being the sum of the oxygen within the wire plus any oxygen adhered to the surface of the wire, the amount of said oxygen within the wire being more than 0.004%, with the balance being iron, and wherein the distribution index of the number of any non-metallic inclusions in the longitudinal cross section of the wire is not higher than 1.0 as calculated by the following formula: ##EQU2##
Claim 3
Dependent Claim
20 words
A steel wire according to claim 1 in which the oxygen content within the wire is not more than 0.010%.
Claim 4
Dependent Claim
21 words
A steel wire according to claim 1 in which the oxygen content adhered to the wire is not more than 0.010%.
References Cited (Backward Citations)
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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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |