VERFAHREN ZUR BESCHICHTUNG VON GEGENSTAENDEN UND FLIESSBETTOFEN ZUR DURCHFUEHRUNG DIESES VERFAHRENS

1477493 Fluidised bed furnaces UNITED KINGDOM ATOMIC ENERGY AUTHORITY 21 July 1975 [2 Aug 1974] 34271/74 Heading BIF [Also in Divisions Cl, C7, F4 and G6] Articles are coated by deposition from a coating gas injected into the base of a fluidised furnace, inert gas being injected to form a sheath aro...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	RENE LEFEVRE,RAYMOND LEON, THOMAS PRICE,MICHAEL STUART
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THEIR RELEVANT APPARATUS TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	1477493 Fluidised bed furnaces UNITED KINGDOM ATOMIC ENERGY AUTHORITY 21 July 1975 [2 Aug 1974] 34271/74 Heading BIF [Also in Divisions Cl, C7, F4 and G6] Articles are coated by deposition from a coating gas injected into the base of a fluidised furnace, inert gas being injected to form a sheath around the coating gas without mixing and to form an outer region of the bed rich in inert gas. Particles of atomic fuel are coated with carbon or silicon carbide by the decomposition of hydrocarbon or silicone gases in an electrically heated fluidised bed contained within a graphite part 3a formed with flared nozzles 19, 20 arranged with a central nozzle 19 to which coating gas is supplied and surrounding nozzles 20 to which an inert gas is supplied. The flow of gas to nozzles 19 and 20 are controllable so that the gas flows are separate, and the flow of inert gas can be cut off to allow coated particles to be withdrawn through the nozzle 20 to be collected in a chamber 24, Fig. 3. The flared outer nozzles may be flattened in section. Fig. 5.