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:
Apr. 27, 1976
Filed:
Jan. 30, 1975
Sumitomo Electric Industries, Ltd., Osaka, JA;
Abstract
The present invention relates to a method of manufacturing aluminum wires for communication cables, insulated electric wires, etc., from aluminum for electrical purposes or as an aluminum alloy for electric conductors containing various additive elements, which is characterized in that cold working of 80% or more is given to the product after hot working, then low temperature intermediate annealing is carried out at a temperature of 100.degree. - 280.degree.C, then cold drawing of 50% or more is given and a continuous annealing is carried out. A manufacturing method is thus provided for aluminum wires for communication cables, insulated electric wires, etc., having excellent overall properties of strength, electrical conductivity, ductility, etc., which is suitable for the modernized high-speed manufacturing line and which is superior with respect to productivity and workability.