Eisennitrid-Eisencarbid-Pulver, insbesondere für die Herstellung von Sintereisen, und Verfahren zu seiner Herstellung

The invention comprises e -iron carbonitride powder, substantially free from a -iron, containing 1-3% by weight of carbon, and a maximum of 7% by weight of nitrogen existing substantially only in the e -iron nitride phase. It is prepared by heating iron powder with a mixture containing 30-100% of al...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SPERR,FRITZ,DR, MUELLER,JOHANNES,DR, KLOEPFER,HARRY,DR
Format:	Patent
Sprache:	ger
Schlagworte:	ALLOYS ARTIFICIAL STONE CASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY LIME, MAGNESIA MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SLAG TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF NATURAL STONE WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention comprises e -iron carbonitride powder, substantially free from a -iron, containing 1-3% by weight of carbon, and a maximum of 7% by weight of nitrogen existing substantially only in the e -iron nitride phase. It is prepared by heating iron powder with a mixture containing 30-100% of alkali metal cyanate and 70-0% of alkali metal cyanide to 450-650 DEG C., and removing the salt after cooling by dissolving in water. The ratio of iron to salt mixture is advantageously 1 : 1 to 1 : 3 by weight.