MANUFACTURE OF TURBINE IMPELLER MADE OF CERAMIC WITH SHAFT

PURPOSE:To improve working efficiency, by a method wherein a cylinder body, made of a metal having a thermal expansion rate about equal to that of an impeller, is engaged with the shaft projection of the impeller, and a shaft member is joined with the cylinder body. CONSTITUTION:A cylinder body 14,...

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Bibliographische Detailangaben
Hauptverfasser:	KAWAGUCHI YASUNOBU, ICHIKAWA MASAO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINE PLANTS IN GENERAL HEATING LIGHTING LIME, MAGNESIA MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS REFRACTORIES SLAG SOLDERING OR UNSOLDERING STEAM ENGINES TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To improve working efficiency, by a method wherein a cylinder body, made of a metal having a thermal expansion rate about equal to that of an impeller, is engaged with the shaft projection of the impeller, and a shaft member is joined with the cylinder body. CONSTITUTION:A cylinder body 14, made of a metal having a thermal expansion rate about equal to that of a turbine impeller 10 made of ceramic, is engaged with a shaft projection 12 of the impeller 10 made of ceramic, and engaging surfaces thereof are joined together by means of a brazing material 16. The semi-finished product is attached to a spin tester for load test. In only an acceptable product, a shaft member 20 made of a metal and the cylinder body 14 are joined together. This, since, in only a product acceptable to a load test, the shaft member may be joined, enables improvement of working efficiency.