Recycling process for recycling granulated metallic materials containing surface impurities

The present invention relates to a recycling process for recycling granulated metallic materials containing surface impurities combining a subprocess 1 and a subprocess 2, where the contaminating material is partially removed in subprocess 1 by means of heating the starting material to a temperature...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MÚGICA IRAOLA, JUAN CARLOS, ABUIN ARICETA, ALBERTO, YURRAMENDI SARASOLA, LOURDES, VICARIO GÓMEZ, IBAN, ANTOÑANZAS GONZALEZ, JAVIER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The present invention relates to a recycling process for recycling granulated metallic materials containing surface impurities combining a subprocess 1 and a subprocess 2, where the contaminating material is partially removed in subprocess 1 by means of heating the starting material to a temperature less than or equal to 300°C in a controlled oxidizing atmosphere; and the material is heated to 400-550°C in an inert atmosphere in subprocess 2 and the remaining residues of contaminating material are removed by a combined thermal-mechanical action.