Metal treatment – Compositions – Heat treating
Patent
1974-10-07
1976-06-22
Dean, R.
Metal treatment
Compositions
Heat treating
29193, 295277, 75138, 75147, 148 115A, 148 32, 164 76, C22F 104
Patent
active
039649350
ABSTRACT:
Aluminum alloy electrical conductors are produced from aluminum base alloys consisting essentially from about 0.20 percent to about 1.50 percent by weight cerium, from about 0.55 percent to about 1.2 percent by weight iron, with the further proviso that the combined weight amount of cerium and iron should range from about 1.2 percent to about 2.5 percent. Optionally magnesium and cobalt in small amounts, e.g., about 0.15 percent can be employed. The alloy conductors of the present invention have an electrical conductivity of at least 59% based on the Internatinal Annealed Copper Standard (IACS), and improved properties of increased thermal stability, ductility, fatigue resistance and yield strength as compared to conventional aluminum alloys with similar electrical properties. The preferred method employed utilizes continuous casting, e.g., casting wheel technique, followed immediately with continuous rolling to rod and/or wire.
REFERENCES:
patent: 3278300 (1966-10-01), Koike
patent: 3615371 (1971-10-01), Nakajima et al.
patent: 3811846 (1974-05-01), Schoerner et al.
Dean R.
Hanegan Herbert M.
Southwire Company
Tate Stanley L.
Wilks Van C.
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