WC Ceriated Tungsten Electrodes

Ceriated Tungsten Electrodes (WC): Eco-Friendly Efficiency Leading the Green Welding Revolution

Ceriated tungsten electrodes (WC) represent a breakthrough in tungsten-based alloy electrodes, achieving exceptional arc stability and environmental performance through the addition of 1.8–2.2% cerium oxide (CeO₂). As an ideal replacement for thoriated tungsten electrodes, WCe eliminates radioactive hazards while delivering low ignition voltage, extended lifespan, and high welding precision. They are widely used in demanding industries such as aerospace, nuclear power equipment, and precision instrument manufacturing.

Core Advantages of WC Tungsten Electrodes

1. Green & Safe, Zero Radioactive Risk

1. • Thorium-Free: Completely avoids α-ray radiation risks associated with thoriated electrodes, complying with OSHA and RoHS standards to ensure operator safety.
   • Non-Toxic Waste: Welding residues can be directly recycled without special handling.

2. Superior Arc Performance

1. • Low Electron Work Function (2.7–3.0 eV) : Reduces ignition voltage by 15–20% , with stable performance in both AC/DC welding and 30% improved arc concentration.
   • Self-Cleaning Capability: CeO₂ promotes cathode spot cleaning, minimizing molten pool contamination in aluminum and magnesium alloy welding.

3. Extended Lifespan

1. • Thermal Cycling Resistance: Lasts 1.5–2x longer than thoriated electrodes, with 40% lower wear rate under the same current.
   • Anti-Burnout Design: CeO₂ forms a protective layer at high temperatures, effectively reducing tungsten evaporation.

4. Broad Compatibility

1. • Current Range: Suitable for 5–400 A (DC) and 5–200 A (AC) , covering thin-sheet to heavy-component welding.
   • Material Versatility: Compatible with stainless steel, aluminum alloys, titanium alloys, nickel-based superalloys, and more.

Technical Specifications Comparison

Ceriated Tungsten Electrode Application

1. Aerospace: High-precision TIG welding of titanium alloy engine components and aluminum-magnesium alloy fuselages.
2. Energy & Power: Defect-free welding of nuclear pipelines and turbine blades.
3. Automotive Manufacturing: Automated welding of EV battery casings and aluminum alloy frames.
4. Precision Instruments: Micro-current welding for medical devices and semiconductor chambers.
5. Field Operations: Stable arc output in low-pressure environments (e.g., high altitude, deep sea).

Customization & Services

• Dimensional Customization: Diameters 0.5–10.0 mm, lengths 75–500 mm, with optional tip grinding or chamfering.
• Surface Finishing:
  • Mirror Polishing: Reduces arc scattering for precision welding.
  • Oxidation Pretreatment: Enhances ignition speed and storage stability.
• Certifications: Compliant with AWS A5.12M/A5.12 and ISO 6848 standards, with material composition reports.
• Technical Support: Welding parameter optimization guidance and electrode selection database access.

Why Choose FOTMA Ceriated Tungsten Electrodes?

• Quality Assurance: High-purity tungsten powder (99.95%) and uniform CeO₂ doping ensure batch consistency.
• Fast Delivery: Standard specifications ship in 48 hours; custom orders in 7–10 days.
• Lifelong Support: Free welding process manuals and 24/7 technical consultation.