The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 1978
Filed:
Dec. 09, 1975
Roger J Schoerner, Carrollton, GA (US);
Enrique C Chia, Carrollton, GA (US);
Southwire Company, Carrollton, GA (US);
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.