EP 0524887 B1 19970409 - Process and apparatus for the production of powders, in particular metal powders by atomisation
Title (en)
Process and apparatus for the production of powders, in particular metal powders by atomisation
Title (de)
Verfahren und Vorrichtung zur Herstellung von Pulver, insbesondere Metallpulver durch Atomisierung
Title (fr)
Procédé et dispositif de production de poudres et notamment de poudres métalliques par atomisation
Publication
Application
Priority
FR 9109462 A 19910725
Abstract (en)
[origin: EP0524887A1] Device for the production of metal powders by atomisation, comprising means (B) for melting the material to be atomised, an atomisation chamber (C) in which is disposed a dispersion head (9) rotating at high speed in order to diffuse the molten material in atomised form, means (9) for cooling the atomised material and the head (9) and means (17) for collecting the cooled powdered material thus obtained, the said melting means (B) comprising at least one inductive plasma tower furnace (4) producing an envelope of plasma-producing gases (12) containing the upper face of the dispersion head and the said cooling means comprising a first series of members (15, 16) for dispensing a coolant fluid arranged in the upper part of the atomisation chamber in order to create a cold zone (13) at the periphery of the envelope (12) and a second series of members (11) for circulating a coolant fluid arranged in the lower part of the chamber (C) in order to create a cold zone at the lower face of the head (9). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B22F 9/08 (2013.01 - EP US); B22F 9/10 (2013.01 - EP US); B22F 2009/0848 (2013.01 - EP US); B22F 2009/086 (2013.01 - EP US); B22F 2009/0896 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US); B22F 2999/00 (2013.01 - EP US)
Citation (examination)
FR 2588781 A1 19870424 - AUBERT & DUVAL ACIERIES [FR]
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 0524887 A1 19930127; EP 0524887 B1 19970409; CA 2074684 A1 19930126; DE 69218846 D1 19970515; DE 69218846 T2 19971023; FR 2679473 A1 19930129; FR 2679473 B1 19940121; US 5340377 A 19940823; US 5529292 A 19960625
DOCDB simple family (application)
EP 92402141 A 19920724; CA 2074684 A 19920727; DE 69218846 T 19920724; FR 9109462 A 19910725; US 20067194 A 19940223; US 91902892 A 19920723