Claims
- 1. A method of manufacturing a stable high strength alloy having mechanical properties greater than 15 percent elongation and a tensile strength greater than 65,000 psi, which comprises subjecting a Zn/Al/Cu/Mg alloy containing from about 20 to 28 percent aluminum, from about 0.1 to 3.5 percent copper, about 0.01 to 0.5 percent magnesium, and the remainder zinc, to a temperature between 550.degree. F., to 750.degree. F., to effect homogenization of the alloy, cooling the homogenized alloy to a rolling temperature of about 350.degree. F., at a rate of about 10.degree. to 50.degree. F., per minute and thereafter rolling the homogenized alloy at a temperature below 350.degree. F., to attain between 10 and 70 percent reduction.
- 2. A method as recited in claim 1 wherein the aluminum is about 25 weight percent.
- 3. A method as recited in claim 1 wherein the amount of magnesium is about 0.03 weight percent.
- 4. A method as recited in claim 1 wherein the amount of copper is about 1 weight percent.
- 5. A method as recited in claim 1 wherein homogenizing is carried out for a period of at least 4 hours.
- 6. A method as recited in claim 1 wherein the homogenized alloy is rolled at a temperature between about 300.degree. F., to about 350.degree. F.
- 7. A method of manufacturing a stable, high strength alloy exhibiting mechanical stability greater than 15 percent elongation and a tensile strength in excess of 65,000 psi, which comprises homogenizing a Zn/Al/Cu/Mg alloy containing from about 20 to 28 percent aluminum, from about 0.1 to 3.5 percent copper, and 0.01 to about 0.5 percent magnesium, and the remainder zinc, at a temperature between about 550.degree. F., and about 750.degree. F., to effect homogenization of the alloy, cooling the homogenized alloy to a rolling temperature of about 350.degree. F., at a rate of about 10.degree. to 50.degree. F., per minute, and thereafter rolling the homogenized alloy at a temperature between about 325.degree. F., to about 350.degree. F., to attain at least 50 percent but less than 70 percent reduction.
BACKGROUND OF THE INVENTION
The present patent application is a continuation-in-part of copending commonly assigned application Ser. No. 469,973 filed May 15, 1974, and now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
469973 |
May 1974 |
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