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| Number | Title | Issue Date |
| 4039355 | Aluminum alloy shapes An aluminum alloy consising essentially of 0.65 to 0.75% by weight of magnesium and 0.50 to 0.60% by weight of silicon or 0.47 to 0.57% by weight of magnesium and 0.75 to 0.85% by weight of silicon, 0.15% to 0.25% by weight of iron, less than 0.05% of an ... | 08/02/1977 |
| 4030947 | Heating treatment method and system of utilizing same A method and system for heat treating metallic substances, especially alloys, and the products obtained thereby. The alloy is subjected to solution heat treating in a fluid media, after which it is quenched in a fluid quenching media. This is followed by ... | 06/21/1977 |
| 4019931 | Thread plate process The present invention comprises an improved process for the preparation of aluminum base alloys containing magnesium and silicon in wrought form, and particularly as tread plate which includes the steps of casting, homogenizing, hot rolling within a criti... | 04/26/1977 |
| 3988180 | Method for increasing the mechanical features and the resistance against corrosion under tension of heat-treated aluminum alloys The invention relates to a method of heat treatment which is applied to forged aluminum alloys, whereby the mechanical characteristics and resistance against corrosion under tension are increased considerably. This method is characterized by heating prior... | 10/26/1976 |
| 3947297 | Treatment of aluminum alloys A process is provided for treating 7000 series aluminum alloys whereby their stress-corrosion resistance is greatly increased. In accordance with the process, the alloy is pre-aged, deformed at room temperature, and then subjected to two aging steps. The ... | 03/30/1976 |
