FLOW DRILL

Flow drill made from a sintered cemented carbide material comprising tungsten carbide and a metallic binder, the sintered cemented carbide material comprising: tungsten carbide having a mean grain size in the range from 0.1 µm to 0.8 µm, 9 weight percent to 15 weight percent cobalt, 0.2 weight perce...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIAO, Simon Tien-I, KÖSTERS, Rolf, LIAO, Yun-Lo
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CASTING CHEMISTRY EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FERROUS OR NON-FERROUS ALLOYS FIXED CONSTRUCTIONS FORGE FURNACES FORGING HAMMERING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS POWDER METALLURGY PRESSING METAL PUNCHING METAL RIVETING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	Flow drill made from a sintered cemented carbide material comprising tungsten carbide and a metallic binder, the sintered cemented carbide material comprising: tungsten carbide having a mean grain size in the range from 0.1 µm to 0.8 µm, 9 weight percent to 15 weight percent cobalt, 0.2 weight percent to 1.1 weight percent molybdenum and/or 1 weight percent to 10 weight percent in total of tantalum carbide, niobium carbide and/or tantalum-niobium mixed carbide, 0 weight percent to 1.4 weight percent chromium, 0 weight percent to 0.6 weight percent vanadium carbide, 0 weight percent to 0.1 weight percent unavoidable impurities, 92.8 weight percent to 71.8 weight percent of said tungsten carbide.