EP 0296921 A1 19881228 - Microwave plasma torch, device comprising such a torch and production procedure for powder operating them.
Title (en)
Microwave plasma torch, device comprising such a torch and production procedure for powder operating them.
Title (de)
Mikrowellenplasmabrenner, einen solchen Brenner aufweisende Anlage und sie verwendendes Puderproduktionsverfahren.
Title (fr)
Torche à plasma micro-onde, dispositif comportant une telle torche et procédé pour la fabrication de poudre les mettant en oeuvre.
Publication
Application
Priority
FR 8708096 A 19870610
Abstract (en)
Microwave plasma torch characterised in that it comprises at least one gas-intake duct (1, 2); a resonator cavity (3) forming, around the said duct, a sleeve open on the exit side of the said duct and comprising a lateral opening (4); a coaxial transition structure perpendicular to the sleeve comprising on the one hand an outer tube (5) connected to the lateral opening (4) of the sleeve and on the other hand an inner member (6) one of whose ends (20) is in contact with the said duct and whose other end is in contact with the outer surface of a waveguide (8) and carries a transition piece (7) disposed inside the waveguide (8); the said waveguide (8) for supplying microwave energy with rectangular cross-section and perpendicular to the coaxial structure (5, 6) being provided with an opening (27) wherein is connected the outer tube (5) of the said structure; means of supplying cladding gas in the waveguide (8) and/or the coaxial structure (5, 6) and/or the sleeve; possibly tuning means; and possibly means of igniting the plasma. <??>It also relates to a device and a method for manufacturing powder. <IMAGE>
IPC 1-7
IPC 8 full level
B22F 9/30 (2006.01); H05H 1/30 (2006.01); H05H 1/42 (2006.01); H05H 1/46 (2006.01)
CPC (source: EP US)
Citation (search report)
- [A] DE 2336050 A1 19750206 - KESSLER WALTHER DIPL-PHYS DR
- [A] DE 3134501 A1 19830811 - CEBANKOV NIKOLAJ IVANOVIC [SU], et al
- [A] ELEKTRONISCHE RUNDSCHAU, vol. 13, no. 11, novembre 1959, pages 404-406; W. SCHMIDT: "Der Mikrowellen-Plasmabrenner"
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0296921 A1 19881228; EP 0296921 B1 19920729; CA 1311277 C 19921208; DE 3873193 D1 19920903; DE 3873193 T2 19930218; DK 310088 A 19881211; DK 310088 D0 19880608; FR 2616614 A1 19881216; FR 2616614 B1 19891020; JP S63312907 A 19881221; US 4924061 A 19900508
DOCDB simple family (application)
EP 88401405 A 19880609; CA 569142 A 19880610; DE 3873193 T 19880609; DK 310088 A 19880608; FR 8708096 A 19870610; JP 4767388 A 19880302; US 20486688 A 19880610