A lightweight wear-resistant aluminum-based powder metallurgy composite material rail transit brake disc and a preparation method therefor. The rail transit brake disc is composed of a wear-resistant aluminum-based composite material, and the wear-resistant aluminum-based composite material consists of aluminum powder, a main alloying element, a trace element, and ceramic particles, wherein the main alloying element is selected from at least one of Cu, Si, Fe, Ni, and Mg, and the trace element is selected from at least one of Sr, Ce, and Sn. The rail transit brake disc is prepared from an aluminum-based powder metallurgy composite material by means of cold press molding, sintering and integrated hot pressing shaping processes; the prepared rail transit brake disc has a series of advantages of no damage, no defect, good compactness, high strength, and the like; upon comparison with a conventional cast iron brake disc, the weight is reduced by 40%-60%, saving energy consumption; the preparation method therefor is simple, the cost is low, and the rate of finished products is high; the preparation method can be used for preparing rail transit brake discs of different dimensions and structures, and satisfies the requirements of industrialized mass continuous production.
LIGHTWEIGHT WEAR-RESISTANT ALUMINUM-BASED POWDER METALLURGY COMPOSITE MATERIAL RAIL TRANSIT BRAKE DISC AND PREPARATION METHOD THEREFOR
LEICHTGEWICHTIGE VERSCHLEISSFESTE PULVERMETALLURGISCHE VERBUNDWERKSTOFFBREMSSCHEIBE FÜR DEN SCHIENENVERKEHR UND VERFAHREN ZUR HERSTELLUNG DAVON
DISQUE DE FREIN DE TRANSPORT FERROVIAIRE EN MATÉRIAU COMPOSITE DE MÉTALLURGIE DES POUDRES À BASE D'ALUMINIUM RÉSISTANT À L'USURE ET LÉGER ET PROCÉDÉ DE PRÉPARATION ASSOCIÉ
2023-12-13
Patent
Electronic Resource
English
IPC: | B22F Verarbeiten von Metallpulver , WORKING METALLIC POWDER / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES / C22C Legierungen , ALLOYS / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen |
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