Conductor for an electrical power cable and a method for manufac

Details Conductor for an electrical power cable and a method for manufac Conductor for an electrical power cable and a method for manufac

1988-09-27

1992-03-10

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

C23C 2252

Patent

active

050947036

ABSTRACT:
In a method for manufacturing a stranded conductor for an electrical power cable comprising a process for forming cupric oxide films of from 0.3 .mu.m to 3 .mu.m in thickness by passing an uninsulated stranded conductor constituted by a plurality of stranded copper strands through oxidizing liquid, the stranded conductor passing through the liquid is curved in a wave to form gaps between the strands, and the oxidizing liquid is caused to penetrate between the strands through the gaps to form cupric oxide films of from 0.3 .mu.m to 3 .mu.m in thickness on the surfaces of the strands. Also disclosed is a stranded conductor for an electrical power cable constituted by a plurality of stranded copper strands, at least one of the copper strands being covered with a cupric oxide film free from exfoliation.

REFERENCES:
patent: 1137986 (1915-05-01), Kuttner
patent: 1904162 (1933-04-01), Milliken
patent: 4325750 (1982-04-01), Takaoka
patent: 4409037 (1983-10-01), Landau
patent: 4411710 (1983-10-01), Takaoka

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