Metal treatment – Compositions – Heat treating
Patent
1975-12-09
1978-03-21
Dean, R.
Metal treatment
Compositions
Heat treating
295277, 75138, 75147, 75148, 148 115A, 148 32, C22F 104
Patent
active
040802221
ABSTRACT:
This disclosure relates to an aluminum alloy electrical conductor which contains from about 0.20% to about 1.60% by weight nickel, from about 0.30% to about 1.30% iron, optionally up to 2.00% of additional specified alloying elements, and the remainder aluminum with associated trace elements. The conductors are processed in a continuous operation which includes continuous casting, hot-rolling in the as-cast condition to form continuous rod, cold-working of the rod by drawing it through a series of wire-drawing dies, without preliminary or intermediate anneals, and thereafter annealing the wire to achieve a minimum electrical conductivity of 58% IACS, an ultimate tensile strength of at least 12,000 psi, a yield strength of at least 8,000 psi and an elongation of at least 12% when measured as a No. 10 AWG wire. The additional alloying elements are precisely controlled in order to facilitate the continuous processing of the cast bar without splitting and cracking of the subsequently rolled and cold-drawn rod.
REFERENCES:
patent: 1579481 (1926-04-01), Hybinette
patent: 1945297 (1934-01-01), Sterner-Rainer
patent: 3670401 (1972-06-01), Schoerner
patent: 3697260 (1972-10-01), Hunsicker
patent: 3807969 (1974-04-01), Schoerner et al.
Chia Enrique C.
Schoerner Roger J.
Dean R.
Hanegan Herbert M.
Linne R. Steven
Southwire Company
Tate Stanley L.
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