METHOD OF MANUFACTURE OF A METAL PART RESISTENT TO FLUID ABRASION AND METAL PART OBTAINED

A coating is produced on at least one portion of the part and consists of a melt containing 2 - 5 % by weight of carbon and 0.5 - 2.5 % by weight of silicon, at least one of the elements chromium, nickel, molybdenum and manganese and optionally one at least of the elements W, V, Nb, Al, Ti, N and B....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BOCQUET, PIERRE, RENAUD, LIONEL, ZIEMIANSKI, GUY-PIERRE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINE TOOLS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A coating is produced on at least one portion of the part and consists of a melt containing 2 - 5 % by weight of carbon and 0.5 - 2.5 % by weight of silicon, at least one of the elements chromium, nickel, molybdenum and manganese and optionally one at least of the elements W, V, Nb, Al, Ti, N and B. The part is then subjected to heat treatment between 200 and 700 DEG C. The invention is especially for use in the production of hydraulic equipment parts. On réalise sur une partie au moins de la pièce un revêtement constitué d'une fonte contenant en poids de 2 à 5 % de carbone et 0,5 à 2,5 % de silicium, au moins l'un des éléments chrome, nickel, molybdène et manganèse ainsi qu'éventuellement l'un au moins des éléments W, V, Nb, Al, Ti, N et B puis on soumet la pièce à un traitement thermique par chauffage entre 200 et 700 DEG C. L'invention peut être utilisée en particulier pour obtenir des pièces pour équipement hydraulique.