WL Lanthanated Tungsten Electrodes

WL Lanthanated Tungsten Electrodes: Versatile and Eco-Friendly Welding Solutions

Lanthanated tungsten electrodes, composed of 97–98% tungsten and 1–2% lanthanum oxide (La₂O₃) , are high-efficiency materials for TIG welding that excel in both DC and AC applications. Their unique high electron emission capability and non-radioactive, environmentally friendly properties make them ideal for welding stainless steel, carbon steel, titanium alloys, and more, perfectly aligning with modern manufacturing demands for both efficiency and safety.

Applications

1. Multi-Material Welding:
   • Deliver stable arcs and deep penetration in DC TIG welding of stainless steel, carbon steel, and titanium alloys, minimizing weld defects. Also suitable for AC welding of aluminum thin plates.
2. Medium-to-High Current Operations:
   • Support a broad current range of 100–500A (depending on diameter and cooling conditions), ideal for welding medium-thick plates in automotive components, pressure pipelines, and similar applications.
3. Automation and Robotic Welding:
   • Low ignition voltage and extended service life make them compatible with high-speed automated production lines, reducing downtime for maintenance.

Performance Advantages

1. Superior Electron Emission:
   • Lanthanum oxide doping reduces work function by 25% , requiring only 12–18V for arc ignition and improving ignition success rates by 30%.
2. Non-Radioactive & Eco-Friendly:
   • Zero radioactivity risk (vs. thoriated electrodes), compliant with RoHS and ISO 6848 standards, with no special disposal required.
3. Broad Current & Polarity Compatibility:
   • Available in diameters of 1.0–6.4mm, compatible with DCEN (Direct Current Electrode Negative) and AC, covering applications from precision electronics to heavy machinery.
4. High-Temperature Resistance:
   • Melting point of 3,370°C, with 40% longer lifespan than ceriated electrodes under sustained high-current operations due to improved erosion resistance.

Material Science & Manufacturing

• Nanoscale Doping Technology:
  Lanthanum oxide nanoparticles are evenly dispersed in the tungsten matrix via plasma spraying, ensuring consistent electron emission and reducing arc fluctuation.
• Precision Machining:
  Tips are CNC-ground to a 15°–45° taper angle for adaptable arc focusing; some models feature nickel-plated surfaces for oxidation resistance.
• Eco-Conscious Production:
  Closed-loop manufacturing with exhaust and wastewater recycling, compliant with ISO 14001 environmental management standards.

Comparative Advantages vs. Other Electrodes

Usage & Maintenance Guidelines

1. Tip Preparation:
   • Grind with diamond wheels to maintain taper symmetry and prevent arc deviation; re-sharpen tips every 4 hours of welding.
2. Gas Shielding Optimization:
   • Use argon gas with purity ≥99.99% and flow rate of 12–20 L/min; add 25% helium for thicker plates to enhance penetration.
3. Current Limits:
   • Avoid prolonged operations above 120% rated current to prevent electrode overheating and oxidation.

Choose lanthanated tungsten electrodes for eco-friendly, high-efficiency, and versatile performance—redefining welding reliability!