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US 5,139,820 AGranted
Method of manufacturing ceramic insulated wire
AssigneeSumitomo Electric Industries, Ltd.
InventorsKazuo Sawada, Shinji Inazawa, Kouichi Yamada
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Abstract
A method of manufacturing a ceramic insulated wire involves preparing an extrudable gel compound formed by dissolving a metal-organic compound in a solvent and adding at least one thermoplastic polymer or its monomer to the mixture to make the gel compound extrudable. The so prepared extrudable gel compound is then extruded around the outer periphery of a conductor for coating the conductor with a gel coating. Thereafter a heat treatment is performed for sintering the gel compound to form a ceramic coating.
Claims9
A method of manufacturing a ceramic insulated wire, comprising the steps of:
- (a) preparing a gel compound formed by dissolving an organic compound of a metal in a solvent;
- (b) increasing the viscosity of said gel compound to make said gel compound extrudable by adding to said gel compound at least one member of the group consisting of thermoplastic polymers and thermoplastic monomers of said thermoplastic polymers;
- (c) extruding said gel compound around the outer periphery of a conductor for coating said conductor with a gel coating;
- and
- (d) heat treating said conductor and gel coating for sintering said gel compound to form a ceramic insulation on said conductor.
2 more elements
Dependencies are inferred from the claim text.