PROCESS FOR PREPARATION OF SINTERED SOLID ALLOYS BASED ON REFRACTORY METALS

The invention relates to powder metallurgy, in particular to a process for preparation of sintered solid alloys based on refractory metals. A process provides for mixing tungsten oxides and metal connective, heating thereof in oxidative or neutral medium or in vacuum to the temperature of 800 - 950...

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Bibliographische Detailangaben
Hauptverfasser:	MARTYNOVA LIUDMYLA MYKHAILIVNA, ANDREIEV IHOR VIKTOROVYCH, YEPYK IRYNA VIKTORIVNA, BONDARENKO VOLODYMYR PETROVYCH
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to powder metallurgy, in particular to a process for preparation of sintered solid alloys based on refractory metals. A process provides for mixing tungsten oxides and metal connective, heating thereof in oxidative or neutral medium or in vacuum to the temperature of 800 - 950 °C. The obtained mixture is reduced simultaneously to carbidization, thereafter in the medium of hydrogen normalizing sintering is carried out in equilibrium methane-hydrogen medium at the temperature of is sintering and sintered. As a result, quality of hardalloyed mixture and properties of solid alloys are improved.