Molybdenum Electrodes

Molybdenum Electrodes for Glass Melting Furnaces: High-Performance Solutions for Precision Glass Production

Molybdenum electrodes are critical components in modern glass melting furnaces, enabling efficient and stable high-temperature processing of glass melts. Designed for environments exceeding 1500°C, these electrodes combine superior electrical conductivity, oxidation resistance, and thermal stability, making them indispensable for producing high-quality optical glass, borosilicate glass, and specialty glass products.

Key Advantages of Moly Electrode

1. Extreme Temperature Resistance
   • Operating Range: Up to 1700°C in oxidizing atmospheres (with protective coatings) and 2200°C in inert/vacuum environments.
   • Maintain structural integrity and conductivity even under prolonged exposure to molten glass.
2. Superior Oxidation Resistance
   • MoSi₂ or Al₂O₃ Coatings: Protect electrodes from oxidation in oxygen-rich glass melts, extending lifespan by 3–4x compared to uncoated molybdenum.
3. High Electrical Efficiency
   • Low resistivity (5.7×10⁻⁸ Ω·m) ensures uniform current distribution, reducing energy consumption by 15–20% vs. graphite electrodes.
4. Corrosion Resistance
   • Resistant to aggressive glass components (e.g., sulfates, chlorides), minimizing erosion and contamination risks.
5. Long Service Life
   • Average lifespan of 12–18 months in continuous operation, outperforming graphite (6–8 months) and platinum-coated electrodes.

Why Choose Molybdenum Electrode

*Platinum electrodes are cost-prohibitive for large-scale applications.

Applications in Glass Melting

1. Optical Glass Production: Ensures bubble-free melting and homogeneity for lenses, fiber optics, and laser components.
2. Borosilicate Glass: High thermal shock resistance aligns with the demands of laboratory glassware and cookware.
3. LCD/OLED Glass Substrates: Precise temperature control prevents defects in ultra-thin display glass.
4. Specialty Glass: Suitable for lead-crystal, uranium glass, and radiation-shielding glass melts.

Design & Customization

• Dimensions: Custom diameters (15–200 mm), lengths (500–3000 mm), and threaded/smooth ends.
• Coatings:
  • MoSi₂: Optimal for temperatures up to 1700°C in oxidizing conditions.
  • Al₂O₃: Enhanced corrosion resistance in sulfate-rich melts.
• Cooling Systems: Integrated water-cooled holders to manage peripheral heat.
• Certifications: Compliant with ASTM F2896, RoHS, and ISO 18544 standards.

Why Choose FOTMA Molybdenum Electrodes?

• Extended Lifespan: Advanced coating technologies reduce replacement downtime.
• Energy Savings: High conductivity lowers power consumption per ton of molten glass.
• Technical Support: On-site installation guidance and real-time thermal performance monitoring.