Tungsten alloy high-temperature electrode contacts
3 month ago
What is a Tungsten Electrode?
A tungsten electrode is a critical component in TIG (Tungsten Inert Gas) welding, used to generate an electric arc that melts metals while inert gas (argon/helium) shields the weld pool from contamination. Made primarily from pure tungsten or tungsten alloys, these electrodes are chosen for their high melting point (3,422°C) and durability.
How to Choose the Right Electrode?
Aluminum/Magnesium (AC Welding): Use Pure (Green) or Zirconiated (White).
Steel/Stainless Steel (DC Welding): Use Thoriated (Red) or Lanthanated (Blue/Gold).
Precision/Low-Amperage Work: Use Ceriated (Grey) or Lanthanated (Gold).
Safety-Conscious Applications: Avoid thoriated (radioactive); use Lanthanated (Blue/Gold).
Technical Specifications
Diameter: 0.5mm – 6.0mm (0.02" – 0.25").
Length: 75mm – 175mm (3" – 7").
Current Capacity: 10 – 600+ amps (depends on diameter/gas).
Point Grinding: Critical for arc stability (typically 15-30° angle).
Applications of Tungsten Electrodes
Aerospace: Welding critical components (titanium, Inconel).
Automotive: Exhaust systems, roll cages, precision repairs.
Nuclear/Power: Pipe welding, reactor components.
Art & Sculpture: Delicate welding for artistic metals.
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