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US4339510A
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Aluminum-base brazing alloy composite
Assignee: Kobe Steel Ltd
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Filing: 1980-04-29
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Granted: 1982-07-13
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Expires: 2000-04-29
Abstract
Abstract An aluminum-base brazing alloy containing essentially up to 2 wt % of Cu, 0.01 to 0.08 wt % of Ti, and the balance of Al and unavoidable impurities, with or without at least one component selected from the group consisting of 0.01 to 0.5 wt % of Zr, 0.05 to 0.5 wt % of Mn and 0.05 to 0.5 wt % of Cr.
Inventors
- 👤 Masaharu Kaifu
- 👤 Kazuo Tanaka
- 👤 Hideo Fujimoto
- 👤 Jun Takigawa
- 👤 Tomohiro Nishimura
- 👤 Yagoro Hirose
- 👤 Junu Hirai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:05
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
41 words
A brazing material of low susceptivity to intergranular corrosion comprising an aluminum alloy core consisting essentially of 0.003 to 2 wt.% of Cu, 0.01 to 0.08 wt.% of Ti, and the balance of Al, and clad thereupon an aluminum-base brazing alloy.
Claim 2
Dependent Claim
41 words
A brazing material of low susceptivity to intergranular corrosion comprising an aluminum alloy core consisting essentially of 0.003 to 2 wt.% of Cu, 0.01 to 0.08 wt.% of Ti, and the balance of Al, and clad thereupon an aluminum-base brazing alloy.
Claim 3
Dependent Claim
70 words
A brazing material of low susceptivity to intergranular corrosion comprising an aluminum alloy core consisting essentially of 0.003 to 2 wt.% of Cu, 0.01 to 0.08 wt.% of Ti, at least one component selected from the group consisting of 0.01 to 0.5 wt.% of Zr, 0.05 to 0.5 wt.% of Mn and 0.05 to 0.5 wt.% of Cr, and the balance of Al, and clad thereupon an aluminum-base brazing alloy.
Claim 4
Dependent Claim
70 words
A brazing material of low susceptivity to intergranular corrosion comprising an aluminum alloy core consisting essentially of 0.003 to 2 wt.% of Cu, 0.01 to 0.08 wt.% of Ti, at least one component selected from the group consisting of 0.01 to 0.5 wt.% of Zr, 0.05 to 0.5 wt.% of Mn and 0.05 to 0.5 wt.% of Cr, and the balance of Al, and clad thereupon an aluminum-base brazing alloy.
References Cited (Backward Citations)
US4167410A
Cited
US4164434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |