EP 1158557 A2 20011128 - Ceramic metal halide lamp lead welding system
Title (en)
Ceramic metal halide lamp lead welding system
Title (de)
Schweissvorrichtung für Leitern von Keramik Metall-Halegonid Lampen
Title (fr)
Système de soudage pour les conducteurs de lampes céramiques aux halogénures métalliques
Publication
Application
Priority
US 57183800 A 20000516
Abstract (en)
Method and apparatus for forming a wire lead of a ceramic metal halide lamp. At least two wire components (N, M) are welded together to form the lead. Most preferably a three wire component is formed from tungsten, niobium, and molybdenum wires. A weld junction is formed by supporting first and second wire components in first and second wire supports (112, 114) that axially align the wire components along a common axis. A moveable wire (112) support is moved in a direction of the common axis until facing ends of the first and second wire components contact each other. While maintaining a force of engagement between the facing ends of the first and second wire components, a weld joint is formed to join the first and second wire components. After inspecting the first such joint, a second joint is formed to produce the three wire lead. This last joint is most preferably used to add a tungsten tip to an already formed niobium-molybdenum wire component (NM). <IMAGE>
IPC 1-7
IPC 8 full level
B21F 15/08 (2006.01); H01J 9/28 (2006.01); H01J 61/36 (2006.01)
CPC (source: EP)
B21F 15/08 (2013.01); H01J 9/28 (2013.01); H01J 61/36 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01304347 A 20010516; JP 2001144058 A 20010515