COPPER-BASE WEAR RESISTANT SINTERED ALLOY FOR CURRENT COLLECTING SLIDING, AND MANUFACTURING METHOD THEREFOR

PROBLEM TO BE SOLVED: To reduce a manufacturing cost and improve heat resistance, by improving a copper-base sintered alloy, which contains Cr as a wear resisting and arc resisting component, graphite and/or metal sulfide as a lubricating component, P and Sn as a sintering matrix component, and 2-6%...

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Hauptverfasser:	IKEUCHI SANEJI, HANDA KAZUYUKI, AZETSU IWAO, AZETSU KENTARO, KUBO SHUNICHI, TSUCHIYA HIROSHI, AZETSU HIDEAKI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES POWDER METALLURGY TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To reduce a manufacturing cost and improve heat resistance, by improving a copper-base sintered alloy, which contains Cr as a wear resisting and arc resisting component, graphite and/or metal sulfide as a lubricating component, P and Sn as a sintering matrix component, and 2-6% Bi as a lubrication reinforcing component. SOLUTION: This manufacturing method is characterized by reducing a Bi content of 2-6 wt.% to '0.5 wt.% or more but less than 2 wt.%'. The method of reducing the Bi content to 0.5-2 wt.% saves Bi of an expensive material, maintains the superior wear resistance, and further improves the arc resistance.