METHOD OF MANUFACTURING INTERMEDIATE PRODUCTS FROM TITANIUM ALLOY WASTES

FIELD: nonferrous metallurgy and alloy technology. SUBSTANCE: titanium waste is granulated, granules are mixed with titanium hydride powder, and resulting mixture is compacted into ingots. The latter are heated and extruded into pellets that are further joined at least in pairs through titanium hydr...

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Bibliographische Detailangaben
Hauptverfasser:	TALALAEV V.D, SANKOV O.N, VACH'JANTS S.G
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	FIELD: nonferrous metallurgy and alloy technology. SUBSTANCE: titanium waste is granulated, granules are mixed with titanium hydride powder, and resulting mixture is compacted into ingots. The latter are heated and extruded into pellets that are further joined at least in pairs through titanium hydride interlayer, e. g. in the form of plate. As tight protective shell, hollow cylinder of refractory heat-resistant alloy with extrusion-destined bottom hole is used. Heating is carried out in two steps: first, oxides contained on surface and in surface layer (up to depth constituting 20% of average granule thickness) of granules are dissolved in granule bulk at temperature not exceeding 400 C and then joined preforms are heated to achieve thermal surface hydrogen charging accomplished by complete layered decomposition of titanium hydride within joined preform. Productivity of process is increased by a factor of at least 1.5-1.6. EFFECT: reduced production cost and improved quality of product (by 20-25%). 2 cl, 3 dwg