Patent US3602689A successfully refreshed from Google Patents.
US3602689A
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Arc welding
Assignee: Westinghouse Electric Corp
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Filing: 1967-11-13
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Granted: 1971-08-31
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Expires: 1987-11-13
Abstract
Abstract A method of arc welding with a filler material to produce welds of high toughness over a temperature range from -200* F. to +200* F. and of tensile strength exceeding 100,000 pounds per square inch. The welding is carried out in an atmosphere such that the nitrogen and oxygen of the weld metal is minimized and the filler material is very low in phosphorus, sulfur, silicon, nitrogen and oxygen.
Inventors
- 👤 Julius Heuschkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:12
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/3066
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
163 words
The method of arc-welding work of low-alloy steel, having a 0.2 percent yield stress exceeding about 100,000 pounds per square inch and Charpy V-notch minimum energy levels as defined in table IB hereof, said work having a low oxygen, nitrogen and silicon content, with a filler metal of low-alloy steel to produce welded joints of 0.2 percent yield stress exceeding about 100,000 pounds per square inch and Charpy V-notch minimum energy levels as defined in table IB hereof, the said method comprising producing a welding arc at said work to melt said metal and depositing said metal as weld metal on said work, in a welding atmosphere such as to maintain the oxygen, nitrogen content of said weld metal at a minimum, said filler metal having a low phosphorus, sulfur, oxygen, nitrogen, and silicon content of the order set forth. P - 0.0005 to 0.0006 S-0.0014 to 0.0019 O - 0.0016 to 0.0024 N - 0.0004 to 0.0013 Si - 0.007 to 0.021
Claim 2
Independent Claim
163 words
The method of arc-welding work of low-alloy steel, having a 0.2 percent yield stress exceeding about 100,000 pounds per square inch and Charpy V-notch minimum energy levels as defined in table IB hereof, said work having a low oxygen, nitrogen and silicon content, with a filler metal of low-alloy steel to produce welded joints of 0.2 percent yield stress exceeding about 100,000 pounds per square inch and Charpy V-notch minimum energy levels as defined in table IB hereof, the said method comprising producing a welding arc at said work to melt said metal and depositing said metal as weld metal on said work, in a welding atmosphere such as to maintain the oxygen, nitrogen content of said weld metal at a minimum, said filler metal having a low phosphorus, sulfur, oxygen, nitrogen, and silicon content of the order set forth. P - 0.0005 to 0.0006 S-0.0014 to 0.0019 O - 0.0016 to 0.0024 N - 0.0004 to 0.0013 Si - 0.007 to 0.021
Claim 3
Dependent Claim
36 words
The method of claim 1 wherein the arc welding is carried out be welding with a nonconsumable electrode in an atmosphere of inert gas and the filler, wire is a filler wire supplied to the arc.
Claim 4
Dependent Claim
62 words
The method of claim 1 in whose practice the phosphorous, sulfur, silicon, nitrogen, and oxygen in the filleR wire are maintained within the following limits in percent of the weight of the filler material: - about 0.0005 to 0.0006 S- about 0.0014 to 0.0019 Si - about 0.007 to 0.021 N2 - about 0.0004 to 0.0013 O2 - about 0.0016 to 0.0024.
Claim 5
Dependent Claim
63 words
The method of claim 1 in whose practice the phosphorus, sulfur, silicon, nitrogen, and oxygen in the filler wire are maintained within the following limits in percent of the weight of the filler material: P - about 0.0005to 0.0008 S - about 0.0013 to 0.0023 Si - about 0.014 to 0.36 N2 - about 0.0002 to 0.0012 O2 - about 0.0008 to 0.0044.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein the filler metal has a carbon content of 0.06 to 0.11.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |