WeiBeam Advances Molybdenum Electrode Applications in Ceramic Fiber and Refractory Industries

Electric melting and fiber forming in resistance furnaces for ceramic fiber, refractory fiber and rock wool is an important application area for molybdenum electrodes. WeiBeam has recently continued to deepen its work in this industry and has optimized electrode configurations on several customer lines.

Specific demands of electric fiber forming on electrodes

• Continuous high load: resistance furnaces run around the clock, so electrodes must work stably at high current density over long periods;
• Aggressive media: high-temperature melts continuously corrode the electrode surface, and the density of the material determines the wear rate;
• Sensitivity of fiber quality: if corrosion products from the electrode contaminate the melt, fiber quality suffers, so good compatibility between electrode and melt is essential.

Our configuration approach

In response to these characteristics, WeiBeam builds combined solutions at three levels: material grade, electrode diameter and insertion depth, and furnace-side arrangement. A dense electrode made with a specialty process reduces the corrosion rate, the current density range is matched to furnace power, and electrode spacing is optimized together with the orifice and fiber-forming temperature profile, supporting melt stability and fiber quality.

Application benefits

For electrode selection and specifications for ceramic fiber and rock wool electric melting and fiber forming, see our ceramic fiber furnace electrodes page.

Feedback from customers already supplied shows that the optimized configurations improve both replacement intervals and running stability, reducing the disruption that unplanned downtime causes to the production rhythm. For expansion or upgrade projects on rock wool and ceramic fiber lines, WeiBeam provides end-to-end support from selection through to installation guidance.