PROCESS FOR THE PRODUCTION OF SINTERED MOLDINGS

The present invention relates to an improved process for the production of sintered moldings by molding a mixture of a sinterable ceramic or metallic powder and polyoxymethylene or a copolymer containing a majority of oxymethylene units as binder to give a compact, removing the binder from the compa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VON BERNSTORFF, BERND-STEFFEN, HERMANT, MARIE-CLAIRE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CASTING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS POWDER METALLURGY THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The present invention relates to an improved process for the production of sintered moldings by molding a mixture of a sinterable ceramic or metallic powder and polyoxymethylene or a copolymer containing a majority of oxymethylene units as binder to give a compact, removing the binder from the compact by treatment with a gaseous acid, and sintering the resulting molding. La présente invention concerne un procédé amélioré pour la production de moulages frittés consistant à mouler un mélange d'une poudre céramique ou métallique frittable et de polyoxyméthylène ou d'un copolymère contenant une majorité d'unités oxyméthylène en tant que liant pour obtenir un comprimé, à retirer le liant du comprimé par traitement avec un acide gazeux, et à fritter le moulage obtenu.