Molybdenum Wire for Electric Light Sources
Molybdenum wire for electric light sources is a class of high-performance molybdenum alloy wires specifically developed for modern lighting technologies. It is widely used in incandescent lamps, halogen lamps, metal halide lamps, xenon lamps, fluorescent lamps, and LED components, serving as lead wires, support structures, electrodes, and sealing conductors. With outstanding high-temperature performance, excellent electron emission characteristics, chemical inertness, and a compatible thermal expansion coefficient with glass materials, molybdenum wire is essential for ensuring the reliability and long service life of today’s high-efficiency light sources.
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Material Features
High Melting Point and Excellent Thermal Strength
With a melting point of 2620 °C, molybdenum wire maintains structural integrity and dimensional stability under high-temperature arcs and radiant heat.
Thermal Expansion Match for Glass Sealing
Offers excellent thermal expansion compatibility with borosilicate, hard, and quartz glasses, enabling gas-tight and mechanically stable seals.
Low Outgassing and Excellent Vacuum Stability
Minimal vaporization or gas release under vacuum and inert gas environments, ensuring clean and efficient lamp operation.
Good Workability and Formability
Can be cold-processed into various shapes such as spiral wires, U-shaped wires, and bridge wires to suit diverse lighting structures.
Reliable Electron Emission and Conductivity
Suitable surface work function and electrical conductivity make it ideal for thermionic emission applications and stable current delivery.
Typical Specifications
| Item | Specification Range |
Material Purity |
≥99.95% Mo |
Diameter Range |
0.015 mm – 1.0 mm (customizable) |
Condition |
Cold-drawn or Annealed |
Surface Finish |
Bright, Pickled, or Black Oxide |
Delivery Form |
Spool, coiled, straight, or as specified by customer |
Typical Applications
1.Incandescent and Halogen Lamp Leads and Support Wires
Ensures reliable power delivery and structural support at high temperatures.
2.Metal Halide Lamp Electrodes and Lead-in Wires
Acts as a high-temperature, gas-tight electrical conductor.
3.Fluorescent Lamp Sealing Components
Used for sealing and gas containment in lamp ends.
4.Xenon, Stage, and Automotive HID Lamps
Withstands thermal and electrical shock in demanding environments.
5.LED Lead Frames and Electrodes
Used in high-brightness, long-lifespan LED packaging structures.
If there is any inquiry of molybdenum, please feel free to contact us by email: sales@chinatungsten.com, sales@xiamentungsten.com or by telephone:86 592 512 9696/86 592 512 9595.