Method of alloying aluminum and calcium into lead

Details Method of alloying aluminum and calcium into lead Method of alloying aluminum and calcium into lead

1987-08-10

1989-02-28

Rutledge, L. Dewayne

Alloys or metallic compositions

Lead base

Alkali, alkaline earth metal or magnesium containing

420590, C22C 1102, C22C 100

Patent

active

048083763

ABSTRACT:
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.

REFERENCES:
patent: 3741754 (1973-06-01), Mainland
patent: 4439398 (1984-03-01), Prengaman
patent: 4627961 (1986-12-01), Dudek
patent: 4652299 (1987-03-01), Bienvenu et al.

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