For the coiling of W incandescent filaments Mo core wires are used as mandrels. Support wires are required for the fastening of the filament inside the lamp. PLANSEE supplies the respective molybdenum redrawing wires.

Advantages:

• Good drawability down to very small diameters
• High ring weights
• No formation of coarse grain during stabilization annealing

Forms of delivery:

• Wire with graphite-coated surface and stress relieving heat treatment on SD300K or K250 spools, with diameters from 0.4 to 3.2  mm; (standard Ø 1.0 and 2.6 mm)

ML Conducting Current and Lead-in Wires/Pins

ML pins for lead-in are required for halogen lamps in hard glass technology. ML conducting pins, which are welded with the MY-ESS-ribbon, are applied for halogen and high-pressure discharge lamps made of quartz glass.

• High ductility after sealing
• Crack free, electro-polished surface, crimped connections guarantees vacuum tight seals
• Very good weldability
• High recrystallization temperature
• Good corrosion resistance

Versions:

• Wire: electropolished surface diameters from 0.3 to 1 mm (standard dimensions ex stock via PLANSEE EXPRESS)
• Pins: cut, scramped and/or bent according to customer drawings, or as welded ML/Ni or ML/steel combi pin

• Finished parts: cleaned, annealed, ready to install or processing; packed in labelled heat sealed polythene bags with desiccant
• Semi-finished products: wire on standard spools SD300K or SH253K
• WVM Wires as Prematerial for Lamp Electrodes: Doped and thoriated W wires as prematerial for lamp electrodes are available at diameters from 0.2 to 2 mm. Pins for conducting current  made of Ni/W/Ni or steel/W/steel for the outer bulb of mercury and sodium vapour lamps are manufactured according to customer drawings.