Dry friction material and method of preparing the same

A friction material includes a composite hard grain disperse metal powder dispersed and held in a thermosetting resin matrix. The metal powder consists of a metal base comprising copper, aluminum, copper alloy or aluminum alloy and hard grains which are substantially homogeneously dispersed therein....

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Bibliographische Detailangaben
Hauptverfasser:	KONDOH, KATSUYOSHI, TAKANO, YOSHISHIGE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BLASTING BRAKES CHEMISTRY CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION DYES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A friction material includes a composite hard grain disperse metal powder dispersed and held in a thermosetting resin matrix. The metal powder consists of a metal base comprising copper, aluminum, copper alloy or aluminum alloy and hard grains which are substantially homogeneously dispersed therein. The content of the hard grain disperse metal powder in the friction material is at least 20 percent and not more than 90 percent on a volume basis. The obtained friction material exhibits a stable coefficient of friction of at least 0.3 under dry sliding conditions while preventing the so-called semicontact phenomenon of locally coming into contact with a counter material even if a pressing load during frictional sliding is small.\!