Method for producing aluminum rod and aluminum wire

Patent metadata

Field	Value
Publication number	US-10518304-B2
Application number	US-201615242651-A
Country	US
Kind code	B2
Filing date	Aug 22, 2016
Priority date	Feb 7, 2011
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

Systems, methods, and devices for the production of aluminum rods from aluminum bars, aluminum wires from aluminum rods, and aluminum wires from aluminum bars are disclosed and described. Annealing steps are not needed or required in the disclosed methods.

First claim

What is claimed is:

1. A method for producing an aluminum wire from an aluminum rod, the method comprising:
cold-drawing the aluminum rod at a temperature in a range from about 40° F. to about 250° F. to reduce the cross-sectional area, producing the aluminum wire;
wherein the aluminum rod is a cylindrical rod having a diameter in a range from about 0.2″ to 0.35″,
the ratio of the cross-sectional area of the aluminum rod to the aluminum wire is in a range from about 3:1 to about 10:1,
the aluminum wire has a tensile strength in a range from about 17,000 to about 22,000 psi, and
the aluminum wire is not annealed.

2. The method of claim 1 , wherein:
the aluminum rod has a tensile strength from about 8,000 to about 12,000 psi; and
the aluminum wire and the aluminum rod comprise an aluminum 1350 alloy.

3. The method of claim 1 , wherein:
the aluminum rod has a tensile strength of less than about 12,000 psi; and
the aluminum wire and the aluminum rod comprise at least 99% aluminum by weight.

4. The method of claim 1 , wherein:
the aluminum rod is a cylindrical rod having a diameter in a range from about ¼″ to about 11/32″; and
the ratio is in a range from about 4:1 to about 9:1.

5. The method of claim 4 , wherein the aluminum wire and the aluminum rod comprise an aluminum 1350 alloy.

6. The method of claim 4 , wherein:
the aluminum wire has an IACS electrical conductivity from about 61% to about 63%; and
the aluminum wire has a tensile strength in a range from about 17,000 to about 21,750 psi.

7. The method of claim 4 , wherein the temperature is in a range from about 50° F. to about 120° F.

8. The method of claim 1 , wherein the aluminum wire has an IACS electrical conductivity of at least 59%.

9. The method of claim 1 , wherein the aluminum wire is a cylindrical wire having a diameter of about 0.114″.

10. The method of claim 9 , wherein the aluminum rod is a cylindrical rod having a diameter of about 5/16″.

11. The method of claim 10 , wherein the aluminum wire has an IACS electrical conductivity from about 61% to about 63%.

12. The method of claim 10 , wherein the aluminum wire has a tensile strength in a range from about 17,000 to about 21,750 psi.

13. A method for producing an aluminum wire from an aluminum rod, the method comprising:
cold-drawing the aluminum rod at a temperature in a range from about 40° F. to about 250° F. to reduce the cross-sectional area, producing the aluminum wire;
wherein the aluminum rod is a cylindrical rod having a diameter in a range from about 0.2″ to 0.35″,
the aluminum wire is a cylindrical wire having a diameter in a range from about 0.1″ to about 0.15″,
the aluminum wire has a tensile strength of less than about 22,000 psi, and
the aluminum wire is not annealed.

14. The method of claim 13 , wherein the aluminum wire has a tensile strength in a range from about 17,000 to about 21,750 psi.

15. The method of claim 14 , wherein the aluminum rod has a tensile strength of less than about 12,000 psi.

16. The method of claim 14 , wherein the aluminum wire and the aluminum rod comprise an aluminum 1350 alloy.

17. The method of claim 16 , wherein the ratio of the cross-sectional area of the aluminum rod to the aluminum wire is in a range from about 3:1 to about 10:1.

18. The method of claim 13 , wherein the aluminum rod is a cylindrical rod having a diameter in a range from about ¼″ to about 11/32″.

19. The method of claim 18 , wherein the aluminum wire has a tensile strength in a range from about 17,000 to about 21,750 psi.

20. The method of claim 19 , wherein the ratio of the cross-sectional area of the aluminum rod to the aluminum wire is in a range from about 6:1 to about 9:1.

Assignees

• Southwire Co Llc

Inventors

• Herrin Jeffrey D
• Wilson Thomas Noell
• Watkins Clinton E
• Barber Emory
• Stephens Tom

Classifications

• B21B2003/001

  Aluminium or its alloys · CPC title

• B21B1/16 Primary

  for rolling {wire rods, bars, merchant bars, rounds} wire or material of like small cross-section · CPC title

• B21C1/003 Primary

  Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences · CPC title

• C22F1/04

  of aluminium or alloys based thereon · CPC title

• B21C1/00

  Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing · CPC title