EP 0901150 A2 19990310 - Electrode, procedure and device for its manufacture
Title (en)
Electrode, procedure and device for its manufacture
Title (de)
Eleltrode und Verfarhen sowie Vorrichtung zur Herstellung derselben
Title (fr)
Electrode, procédé et dispositif pour sa fabrication
Publication
Application
Priority
DE 19738574 A 19970904
Abstract (en)
The electrode (4) is made of wolfram material, which may be doped and has cylindrical shaft (5) with a conical point (9) which is formed by radial deformation of the shaft, e.g. using radial hammering or transverse rolling, for increasing the hardness in the vicinity of the point.
Abstract (de)
Eine Elektrode (4) aus Wolframmaterial für eine Hochdruckentladungslampe besitzt einen zylindrischen Schaft (5) und eine konisch zulaufende Spitze (9). Die Spitze ist im wesentlichen durch radiales Umformen (radiales Hämmern oder Querwalzen) hergestellt. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 9/02 (2006.01); H01J 61/073 (2006.01)
CPC (source: EP US)
H01J 9/02 (2013.01 - EP US); H01J 61/073 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0901150 A2 19990310; EP 0901150 A3 19990421; EP 0901150 B1 20040922; AT E277423 T1 20041015; CN 1151537 C 20040526; CN 1210360 A 19990310; DE 19738574 A1 19990311; DE 59811983 D1 20041028; HU 221580 B 20021128; HU 9802006 D0 19981028; HU P9802006 A2 19990628; HU P9802006 A3 20010328; JP H11135011 A 19990521; US 6109995 A 20000829
DOCDB simple family (application)
EP 98113037 A 19980714; AT 98113037 T 19980714; CN 98115132 A 19980626; DE 19738574 A 19970904; DE 59811983 T 19980714; HU P9802006 A 19980903; JP 24925798 A 19980903; US 12152298 A 19980723