PROCESS FOR MANUFACTURING STRANDED CONDUCTOR COMPRISING INSULATED CONDUCTOR STRANDS

Title:

PROCESS FOR MANUFACTURING STRANDED CONDUCTOR COMPRISING INSULATED CONDUCTOR STRANDS

Document Type and Number:

WIPO Patent Application WO/1981/002945

Kind Code:

A1

Abstract:

A process for forming an insulating coating on the surface of each conductor strand in a stranded conductor (30) while maintaining the form of the stranded conductor, said coating comprising an oxide of the metal of the conductor strands. In the step of oxidation treatment of a stranded electric cable conductor, pressure of an oxidation-treating solution (48) into which stranded conductor (30) is dipped is controlled so that the pressure outside the stranded conductor is higher than that inside the stranded conductor (30) to thereby sufficiently force penetration of the oxidation-treating solution (48) into the interior of the stranded conductor (30) to form the desired oxide film on the surfaces of all strands constituting the stranded conductor (30). In order to further facilitate complete penetration of the treating solution (48) into the interior of the stranded conductor (30) or further to accelerate the oxidation reaction, the stranded conductor (30) may be vibrated or slightly untwisted in the oxidation treatment step (40), or may be heated before being introduced into the step (40).

Inventors:

TAKAOKA M (JP)
MOCHIZUKI M (JP)
MOUTAI T (JP)
YOSHIDA S (JP)
WATANABE K (JP)

Application Number:

PCT/JP1981/000076

Publication Date:

October 15, 1981

Filing Date:

April 02, 1981

Export Citation:

Click for automatic bibliography generation Help

Assignee:

FUJIKURA LTD (JP)
TAKAOKA M (JP)
MOCHIZUKI M (JP)
MOUTAI T (JP)
YOSHIDA S (JP)
WATANABE K (JP)

International Classes:

H01B5/08; H01B13/16; (IPC1-7): H01B13/16

Foreign References:

JPH04725676A
JPS55164079A	1980-12-20
JPH05186775A	1993-07-27
JPH05296266A	1993-11-09

Other References: