Sliding element with a copper-based alloy layer

A sliding element comprises a steel backing layer and a copper-based sliding layer which contains (by mass): 10-30% Bi, 0.5-5% of an inorganic particles, optionally 0.5-5% Sn, optionally 0.1-10% in total Ni, Fe, P and Ag, with the balance being Cu and impurities. The inorganic particles have an aver...

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Bibliographische Detailangaben
Hauptverfasser:	TAKUO IMAI, KENTARO TUJIMOTO, KOUJI ZUSI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BEARINGS BLASTING CHEMISTRY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FERROUS OR NON-FERROUS ALLOYS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	A sliding element comprises a steel backing layer and a copper-based sliding layer which contains (by mass): 10-30% Bi, 0.5-5% of an inorganic particles, optionally 0.5-5% Sn, optionally 0.1-10% in total Ni, Fe, P and Ag, with the balance being Cu and impurities. The inorganic particles have an average size of 1-5 microns and a density of 70-130 % of that of the bismuth. The bismuth forms isotropically distributed particles of average size 2-15 microns in the copper alloy. Suitable inorganic particles are carbides such as NbC, Mo2C, WC-TiC, WC-TiC-TaC, nitrides such as ZrN, Mo2N, NbN, silicides such as TaSi2, WSi2and borides such as MoB and TaB2. The sliding element can have a copper-based overlay layer on top of the copper-based sliding layer.