PRODUCTION OF HIGH DENSITY SPECIAL CARBONACEOUS MATERIAL

PURPOSE:To make density high and to improve electric discharge machinability by kneading a specific carbonaceous power with coke and a binder pitch. CONSTITUTION:The carbonaceous power of 5-90% having 3-30% volatile matter, 15-20mum average particle diameter and 1-30% toluene soluble matter is mixed...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAO NORITOSHI, HASHIGUCHI SHOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE INORGANIC CHEMISTRY LIME, MAGNESIA METALLURGY NON-METALLIC ELEMENTS REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PURPOSE:To make density high and to improve electric discharge machinability by kneading a specific carbonaceous power with coke and a binder pitch. CONSTITUTION:The carbonaceous power of 5-90% having 3-30% volatile matter, 15-20mum average particle diameter and 1-30% toluene soluble matter is mixed into a mixture of coke and the binder pitch and after kneaded at 50-300 deg.C, is baked at 800-1000 deg.C and is graphitized at 2000-3000 deg.C. The carbonaceous power satisfies at least one of the properties of following carbonaceous powders, that is, a carbonaceous power having