发明名称 |
Method of alloying aluminum and calcium into lead |
摘要 |
A method of alloying powdered aluminum into lead to form lead-calcium-aluminum alloys with relatively high recoveries and low standard deviations of recoveries. The method comprises melting lead, heating the lead, injecting simultaneously calcium-containing granules and aluminum powder into the lead under the surface. The alloying material preferably has a total calcuim content of between about 65% and 80% by weight and a total aluminum content of between about 35% and 20%. The material is preferably injected into an injection bell to hold the alloying material under the surface of the lead.
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申请公布号 |
US4808376(A) |
申请公布日期 |
1989.02.28 |
申请号 |
US19870083822 |
申请日期 |
1987.08.10 |
申请人 |
THE DOE RUN COMPANY |
发明人 |
WORCESTER, ANTHONY W.;RAVNBORG, KAI;AGUIRRE, CARLOS E. |
分类号 |
C22C1/02;(IPC1-7):C22C11/02;C22C1/00 |
主分类号 |
C22C1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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