Patent US3853611A successfully refreshed from Google Patents.
US3853611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding material for super low temperature steels
Assignee: Kobe Steel Ltd
•
Filing: 1972-04-07
•
Granted: 1974-12-10
•
Expires: 1992-04-07
Abstract
Abstract This invention provides a welding material for super low temperature steels which comprises not more than 0.2% carbon, 5 12% manganese, not more than 30% chromium, 4 - 8% niobium, 22% iron and not more than 1.5% silicon, the balance being substantially nickel, and which can give excellent strength and impact value to the weld zone. In one embodiment, the welding material is an integral body composed of a metal-forming material and a flux of lime or lime-titania in which the metal forming components are within the above range.
Inventors
- 👤 T Godai
- 👤 T Sugiyama
- 👤 K Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:11
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3033; B23K35/304; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2951; Y10T428/2953
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
87 words
AN ARC WELDING ELECTRODE WHICH IS APPLICABLE FOR LOW TEMPERATURE STEELS, WHICH COMPRISES: A CORE WIRE CONSISTING ESSENTIALLY OF NO MORE THAN 0.2% CARBON, 5-12% MANGANESE, NO MORE THAN 30% CHROMIUM, 4-8% NIOBIUM, NO MORE THAN 22% IRON AND NO MORE THAN 1-5% SILICON, THE BALANCE BEING SUBSTANTIALLY NICKEL AND EXTRANEOUS IMPURITIES, COVERED WITH A FLUX CONSISTING ESSENTIALLY OF 10-50% CALCIUM CARBONATE, 16-50% FLUORSPAR, 2-20% MAGNESIA CLINKER AND NO MORE THAN 10% RUTILE, WHEREIN THE RATIO OF FLUORSPAR TO CALCIUM CARBONATE IS IN THE RANGE OF 1-1.5.
Claim 2
Dependent Claim
87 words
AN ARC WELDING ELECTRODE WHICH IS APPLICABLE FOR LOW TEMPERATURE STEELS, WHICH COMPRISES: A CORE WIRE CONSISTING ESSENTIALLY OF NO MORE THAN 0.2% CARBON, 5-12% MANGANESE, NO MORE THAN 30% CHROMIUM, 4-8% NIOBIUM, NO MORE THAN 22% IRON AND NO MORE THAN 1-5% SILICON, THE BALANCE BEING SUBSTANTIALLY NICKEL AND EXTRANEOUS IMPURITIES, COVERED WITH A FLUX CONSISTING ESSENTIALLY OF 10-50% CALCIUM CARBONATE, 16-50% FLUORSPAR, 2-20% MAGNESIA CLINKER AND NO MORE THAN 10% RUTILE, WHEREIN THE RATIO OF FLUORSPAR TO CALCIUM CARBONATE IS IN THE RANGE OF 1-1.5.
Claim 3
Dependent Claim
98 words
An arc welding electrode which is applicable for low temperature steels, which comprises: a composite wire composed of a metal casting packed with an alloy powder consisting essentially of no more than 0.2% carbon, 5-12% manganese, no more than 30% chromium, 4-8% niobium, no more than 22% iron and no more than 1.5% silicon with the balance being substantially nickel and extraneous impurities, together with a flux consisting essentially of 10-50% calcium carbonate, 16-50% fluorspar, 2-20% magnesia clinker and no more than 10% rutile, wherein the ratio of fluorspar to calcium carbonate is within the range of 1-1.5.
Claim 4
Dependent Claim
98 words
An arc welding electrode which is applicable for low temperature steels, which comprises: a composite wire composed of a metal casting packed with an alloy powder consisting essentially of no more than 0.2% carbon, 5-12% manganese, no more than 30% chromium, 4-8% niobium, no more than 22% iron and no more than 1.5% silicon with the balance being substantially nickel and extraneous impurities, together with a flux consisting essentially of 10-50% calcium carbonate, 16-50% fluorspar, 2-20% magnesia clinker and no more than 10% rutile, wherein the ratio of fluorspar to calcium carbonate is within the range of 1-1.5.
References Cited (Backward Citations)
US3024137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |