EP 1845325 A4 20081224 - APPARATUS FOR MELTING METAL BY ELECTRON BEAMS AND PROCESS FOR PRODUCING HIGH-MELTING METAL INGOT USING THIS APPARATUS
Title (en)
APPARATUS FOR MELTING METAL BY ELECTRON BEAMS AND PROCESS FOR PRODUCING HIGH-MELTING METAL INGOT USING THIS APPARATUS
Title (de)
VORRICHTUNG ZUM SCHMELZEN VON METALL MITTELS ELEKTRONENSTRAHLEN UND VERFAHREN ZUR HERSTELLUNG HOCHSCHMELZENDER METALLGUSSBLÖCKE MIT DIESER VORRICHTUNG
Title (fr)
APPAREIL DE FUSIONDE METAL PAR FAISCEAUX ELECTRONIQUES ET PROCEDE DE FABRICATION D UN LINGOT METALLIQUE A POINT DE FUSION ELEVE AVEC CET APPAREIL
Publication
Application
Priority
- JP 2006300944 W 20060123
- JP 2005016396 A 20050125
- JP 2005363412 A 20051216
Abstract (en)
[origin: EP1845325A1] The present invention provides an electron-beam furnace and a melting method that, in producing an ingot by melting a metal with an electron beam, can suppress the contamination of new impurities in the ingot production, are less likely to again result in inclusion of once evaporated impurities from a molten metal pool within a hearth or a mold, and can be improved in utilization rate. The electron-beam furnace for melting a refractory metal includes a feeder unit for raw materials, a melting unit for raw materials, which is connected to the feeder unit for raw materials and, at the same time, is defined by a furnace wall and a ceiling wall, and includes at least a hearth, a water-cooled mold, and an electron gun, and an evacuation unit for exhaust gas connected to the melting unit for raw materials. In this electron beam furnace, at least one of the furnace wall and the ceiling wall is lined with titanium or stainless steel, and in addition, plural fin-shaped members formed of titanium or stainless steel are provided at the ceiling wall. A lining, which can be attached and detached, is provided on the inner face of the electron beam furnace.
IPC 8 full level
C22B 9/22 (2006.01); C22B 34/12 (2006.01); F27B 3/10 (2006.01); F27B 17/00 (2006.01); F27D 1/02 (2006.01)
CPC (source: EP)
B22D 11/001 (2013.01); C22B 9/228 (2013.01); C22B 34/1295 (2013.01); F27B 17/0016 (2013.01); F27D 1/02 (2013.01); F27D 99/0006 (2013.01); F27D 2099/003 (2013.01)
Citation (search report)
- [DA] JP H1161288 A 19990305 - NIKKO KINZOKU KK
- [A] US 3265801 A 19660809 - FRANK EATON NORMAN
- [DA] EP 0900854 A1 19990310 - TITANIUM HEARTH TECHNOLOGIES I [US]
- See references of WO 2006080269A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1845325 A1 20071017; EP 1845325 A4 20081224; EP 1845325 B1 20100811; CN 102175077 A 20110907; CN 102175077 B 20120815; DE 602006016070 D1 20100923; RU 2007132183 A 20090310; RU 2401872 C2 20101020; WO 2006080269 A1 20060803
DOCDB simple family (application)
EP 06712160 A 20060123; CN 201110021276 A 20060123; DE 602006016070 T 20060123; JP 2006300944 W 20060123; RU 2007132183 A 20060123