LOW THERMAL EXPANSION AND HIGH STRENGTH CONDUCTOR FOR TRANSMISSION LINE, AND LOW LOOSENING CABLE USING SAME

PURPOSE:To provide a conductor for a transmission line achieving a higher strength, and a lower thermal expansion up to 310 deg.C than a conventional one, and a low loosening cable using this of which transmission capacity can be increased while maintaining an outer diameter of an existing line by c...

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Bibliographische Detailangaben
Hauptverfasser:	SHIGA HIROICHI, OONO TAKEHIRO, OSHIMA OKIHIRO, MASUGATA YOSHIKI, SANBONSUGI KIYOSHI, SHIMADA NORIYUKI, SATO KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CABLES CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CONDUCTORS DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INSULATORS METALLURGY SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a conductor for a transmission line achieving a higher strength, and a lower thermal expansion up to 310 deg.C than a conventional one, and a low loosening cable using this of which transmission capacity can be increased while maintaining an outer diameter of an existing line by coating a specific steel wire material comprising Fe-Co-Ni alloy with Al or Zn. CONSTITUTION:A low thermal expansion and high strength conductor for a transmission line comprises a steel wire material comprising Fe-Co-Ni-based alloy and composed in a composition having at least two phases of austenitic phase and a work inducting martensitic phase on which surface Al coating on Zn plating is applied. A coating ratio of the Al coating is 30% or less, or desirably 13-22%, the cross sectional surface of the steel wire material. A Zn plating quantity is desirably 215g/m or more. A quantity of the work inducing martensite phase contained in the Fe-Co-Ni alloy is desirably in a range of 2-35%.