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AssigneeSumitomo Electric Industries, Ltd.
InventorsAkira Mikumo, Kenichi Takahashi, Masanobu Koganeya
Estimating the term…
Disclosed herein are methods of measuring, adjusting and uniformalizing a sectional area ratio of a metal-covered electric wire, a method of cleaning an electric wire, a method of manufacturing a metal-covered electric wire, an apparatus for measuring a sectional area ratio of a metal-covered electric wire, and an apparatus for electropolishing a metal-covered electric wire. Electric resistance values of first and second materials are previously stored respectively so that a sectional area ratio of a metal-covered electric wire is calculated on the basis of the as-stored values and an actually measured electric resistance value of the metal-covered electric wire. Measurement and uniformalization of a sectional area ratio of a metal-covered electric wire and cleaning of an electric wire are carried out by dissolving surface layer parts of the electric wires by electropolishing.
A method of adjusting a sectional area ratio between a first material part and a second material part of a metal-covered electric wire having a core part including said first material and a metal covering layer formed of said second material covering the core part, by determining electric resistance values of said first and Second material parts, dissolving a surface layer part of said covering layer by electropolishing and adjusting said sectional area ratio between said first material part and said second material part based on said electric resistance values of said first and second material parts.
A method of uniformalizing a sectional area ratio between a first material part and a second material part of a metal-covered electric wire having a core part including said first material and a metal covering layer formed of said second material covering said core part, by determining electric resistance values of said first and second material parts, dissolving a surface layer part of the covering layer by electropolishing thereby uniformalizing said sectional area ratio between said first material part and said second material part along its longitudinal direction based on said electric resistance values of said first and second material parts.
A method of cleaning an electric wire having a core part including a superconducting material by removing a surface layer part of said electric wire having a metal surface by electropolishing, thereby cleaning said surface of said electric wire.
A method of manufacturing a metal-covered electric wire, comprising:
An apparatus for electropolishing an electric wire having a core part including a first material and a surface layer part of a second material covering said core part, comprising:
Dependencies are inferred from the claim text.