EP 0512633 B1 19940720 - Method for aftertreating the focal track of rotary anodes of X-ray tubes.
Title (en)
Method for aftertreating the focal track of rotary anodes of X-ray tubes.
Title (de)
Verfahren zur Nachbehandlung der Brennbahn von Röntgendrehanoden.
Title (fr)
Procédé pour traiter postérieurement la trace focale d'une anode rotative sur tubes à rayons X.
Publication
Application
Priority
AT 94791 A 19910507
Abstract (en)
[origin: EP0512633A2] In a method of producing a rotary anode of an X-ray tube having a focal track region composed of refractory metals, the focal track region is manufactured by powder-metallurgy methods or by CVD OR PVD methods. According to the invention, the focal track region is aftertreated, preferably using high-energy electrons or photons, at a depth of less than 1.5 mm by means of local superficial melting. This reduces, in particular, the residual porosity of the focal track region, which results in improved mechanical properties, higher X-ray yield and markedly improved service life of such rotary anodes.
IPC 1-7
IPC 8 full level
H01J 9/14 (2006.01); H01J 35/10 (2006.01)
CPC (source: EP)
H01J 9/14 (2013.01); H01J 35/10 (2013.01); H01J 2235/085 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0512633 A2 19921111; EP 0512633 A3 19930217; EP 0512633 B1 19940720; AT 397005 B 19940125; AT A94791 A 19930515; AT E108948 T1 19940815; DE 59200292 D1 19940825; JP 3345439 B2 20021118; JP H05151891 A 19930618
DOCDB simple family (application)
EP 92201234 A 19920504; AT 92201234 T 19920504; AT 94791 A 19910507; DE 59200292 T 19920504; JP 13969692 A 19920501