Carbon commutator and process for producing the same

In producing a carbon composite base (11) comprising a carbon base (14) and, formed on a surface thereof, an iron layer (15) to which a metallic material can be bonded, the peel strength between the carbon base (14) and the iron layer (15) is heightened. A carbon composite base (11) is formed by adh...

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Bibliographische Detailangaben
Hauptverfasser:	OTAKE SEIJI, TANAKA HIROAKI, TAKAYANAGI HIROYUKI, ISHIZAKI MITSUNARI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CURRENT COLLECTORS DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION LIME, MAGNESIA LINE CONNECTORS METALLURGY REFRACTORIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	In producing a carbon composite base (11) comprising a carbon base (14) and, formed on a surface thereof, an iron layer (15) to which a metallic material can be bonded, the peel strength between the carbon base (14) and the iron layer (15) is heightened. A carbon composite base (11) is formed by adhering an iron powder to a surface of a carbon base (14) formed beforehand by sintering and then sintering the adherent iron powder at a temperature which is not lower than the diffusion temperature of the carbon and is not higher than the melting point of the iron. The iron powder to be used is onewhich has been treated so as to have a larger amount of oxygen adsorbed on the surface thereof by subjecting it to immersion in water or heat treatment. Thus, peel strength is heightened.