Aluminous metal brazing materials
Abstract
Abstract AN IMPROVED ALUMINUM ALLOY, REFFERED TO AS A CORE MATERIAL, IS PROVIDED WHICH IS PARTICULARLY ADAPTED FOR USE IN MANUFACTURING ARTICLES BY VACUUM BRAZING TECHNIQUES BECAUSE SUCH CORE MATERIAL HAS OPTIMUM RESISTANCE TO SAG AT BRAZING TEMPERATURES AND BECAUSE IT HAS A SOLIDUS OF ABOUT 1160*F. TO 1180*F., IS HEAT TREATABLE TO A MINIMUM YIELD STRENGTH OF 12,000 P.S.I., AND IS CORROSION RESISTANT. A HEAT TREATABLE CLADDING ALLOY IS ALSO PROVIDED FOR USE AS A BRAZING COMPONENT EITHER ALONE OR WITH SUCH CORE MATERIAL AND OTHER SUITABLE CORE MATERIALS. THE PREFERRED CLADDING ALLOY HAS A LIQUIDUS OF ABOUT 10651085*F., HAS A NARROW MELTING RANGE OF ABOUT 20* TO ABOUT 40*F., IS CORROSION RESISTANT, AND PROVIDES JOINTS OF OPTIMUM STRENGTH AND QUALITY.
Inventors
- 👤 O Singleton
- 👤 B Ward
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |