Claims
- 1. A pre alloy composite casting comprising
- a metal core portion-having sufficient lithium to be reactive at room temperature, said core portion having 6 to 10% lithium by weight,
- a metal surface portion which is non-reactive at said room temperature, said metal surface portion completely enclosing said core portion.
- 2. A casting as in claim 1 wherein said core portion contains 8 to 10 percent lithium by weight.
- 3. A casting as in claim 1 wherein said surface portion comprises a hollow cylindrical body having a closed end and an open end, and an end stopper fitted into said open end of cylindrical body, said core portion having been poured into said hollow body prior to placement of said end stopper.
- 4. A casting as in claim 3 wherein said closed end comprises a further end stopper fitted in said hollow body prior to pouring said core portion.
Priority Claims (1)
Number |
Date |
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3628276 |
Aug 1986 |
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Parent Case Info
This application is a division of U.S. application Ser. No. 230,707 filed Aug. 9, 1988, now U.S. Pat. No. 4,919,187, which is a continuation of Ser. No. 908,332 filed Sept. 17, 1986, now abandoned.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
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Parent |
230707 |
Aug 1988 |
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Continuations (1)
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Number |
Date |
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908332 |
Sep 1986 |
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