EP 0125161 A1 19841114 - Process for producing metal powder starting from a molten metal.
Title (en)
Process for producing metal powder starting from a molten metal.
Title (de)
Verfahren zur Herstellung von Metallpulver aus einer Metallschmelze.
Title (fr)
Procédé de fabrication de poudres métalliques à partir d'un matériau métallique en fusion.
Publication
Application
Priority
FR 8307414 A 19830504
Abstract (en)
[origin: US4521244A] A cryogenic fluid in the liquid phase is put in contact with a metal material maintained in a closed treating vessel, the cryogenic fluid which contains the solid particles formed is exhausted from the vessel, and the solid particles are separated from the cryogenic fluid and collected. The metal material is heated by induction heating with a high-frequency current and maintained in levitation in the cryogenic liquid. The process is applicable to the production of ultra-fine powders from metals which are only slightly volatile.
Abstract (fr)
L'invention concerne un procédé de fabrication de poudres métalliques à partir d'un matériau métallique en fusion. On met en contact un fluide cryogénique en phase liquide avec le matériau métallique maintenu dans une enceinte de traitement fermée, on évacue hors de l'enceinte le fluide cryogénique qui contient les particules solides formées, on sépare ces dernières dudit fluide et on les collecte. Le procéde s'applique à la fabrication de poudres ultra-fines à partir de métaux peu volatils.
IPC 1-7
IPC 8 full level
B01J 19/00 (2006.01); B22F 9/12 (2006.01)
CPC (source: EP US)
B22F 9/12 (2013.01 - EP US)
Citation (search report)
- [X] FR 2299932 A1 19760903 - ANVAR [FR]
- [AD] EP 0009433 A1 19800402 - AIR LIQUIDE [FR]
- [A] DE 903777 C 19540211 - EISENWERKE MUELHEIM MEIDERICH
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0125161 A1 19841114; EP 0125161 B1 19870616; AT E27780 T1 19870715; DE 3464214 D1 19870723; FR 2545394 A1 19841109; FR 2545394 B1 19850906; JP S59208003 A 19841126; US 4521244 A 19850604
DOCDB simple family (application)
EP 84400733 A 19840412; AT 84400733 T 19840412; DE 3464214 T 19840412; FR 8307414 A 19830504; JP 8851284 A 19840504; US 60349184 A 19840424