Aluminum nickel base alloy electrical conductor and method therefor
First Claim
1. An aluminum base alloy electrical conductor manufactured by continuous casting and then hot-rolling substantially immediately after casting while the cast alloy is in substantially that condition as a cast, said conductor being substantially free of splits and cracks and having a minimum electrical conductivity of 57% IACS, an ultimate tensile strength of at least 12,000 PSI, and a yield strength of at least 8,000 PSI when measured as a fully annealed wire, consisting essentially of from about 0.55 to about 0.65 weight percent nickel, the remainder being aluminum with associated trace elements, said conductor alloy having no more than 0.15 weight percent iron, no more than 0.001 weight percent magnesium and no more than 0.05 weight percent copper to obtain improved ductility over aluminum-nickel alloys having greater percentages of the aforesaid iron, magnesium and copper.
2 Assignments
0 Petitions
Accused Products
Abstract
Improved aluminum alloy electrical conductors and method for making same are disclosed. The alloy contains from about 0.55 to about 0.65 weight percent nickel, the remainder aluminum with associated trace elements including no more than 0.15 weight percent iron, no more than 0.001 weight percent magnesium and no more than 0.05 weight percent copper.
-
Citations
7 Claims
- 1. An aluminum base alloy electrical conductor manufactured by continuous casting and then hot-rolling substantially immediately after casting while the cast alloy is in substantially that condition as a cast, said conductor being substantially free of splits and cracks and having a minimum electrical conductivity of 57% IACS, an ultimate tensile strength of at least 12,000 PSI, and a yield strength of at least 8,000 PSI when measured as a fully annealed wire, consisting essentially of from about 0.55 to about 0.65 weight percent nickel, the remainder being aluminum with associated trace elements, said conductor alloy having no more than 0.15 weight percent iron, no more than 0.001 weight percent magnesium and no more than 0.05 weight percent copper to obtain improved ductility over aluminum-nickel alloys having greater percentages of the aforesaid iron, magnesium and copper.
-
4. Method of preparing an aluminum base alloy electrical conductor having a minimum conductivity of at least 57% IACS comprising the steps of:
-
A. preparing an alloy consisting essentially of from about 0.55 to about 0.65 weight percent nickel, the remainder aluminum with associated trace elements, said conductor alloy having no more than 0.15 weight percent iron, no more than 0.001 weight percent magnesium and no more than 0.05 weight percent copper to obtain improved ductility over aluminum-nickel alloys having greater percentages of the aforesaid iron, magnesium and copper; B. casting the alloy in a moving mold formed between a groove in the periphery of a rotating casting wheel and a metal belt lying adjacent said groove for a portion of its length; C. hot rolling the cast alloy substantially immediately after casting while the cast alloy is in substantially that condition as cast to form a continuous rod; said aluminum alloy conductor being substantially free of splits and cracks and having a tensile strength of at least 12,000 PSI, and a yield strength of at least 8,000 PSI when measured as a fully annealed wire, and has good thermal stability characteristics. - View Dependent Claims (5, 6)
-
Specification
-
- Resources
-
Current AssigneeSouthwire Company
-
Original AssigneeSouthwire Company
-
InventorsChia, E. Henry, Schoerner, Roger J.
-
Primary Examiner(s)Dean, R.
-
Application NumberUS05/871,617Time in Patent Office925 DaysField of Search75/138, 148/2, 148/11.5 A, 148/32, 148/32.5US Class Current148/550CPC Class CodesC22C 21/00 Alloys based on aluminiumH01B 1/023 Alloys based on aluminium
