Challenges of modern high-temperature furnace linings up to 1.800 °C process temperature

Modern high-temperature furnace linings must meet stringent requirements for precision, efficiency, and sustainability. These linings are often composed of advanced materials like polycrystalline mullite/alumina wool (PCW) and enable process temperatures up to 1.800 °C. This capability is critical for industries such as metallurgy, glass, ceramics, or semiconductor production.

Key challenges of high-temperature insulation:

• Cracks and spalling: Thermal stress and chemical exposure can cause cracks and material spalling, compromising insulation integrity and furnace efficiency.
• Discoloration: Chemical reactions at high temperatures can lead to discoloration, affecting heat transfer efficiency.

This conspicuousness can significantly affect the performance and lifespan of high-temperature ovens. Regular maintenance, high-quality insulation materials, and innovative solutions are essential to mitigate these issues.

Innovative techniques and services:

SCHUPP^® Ceramics apply "stack-bond" technology to reduce crack formation and pre-fires insulation materials to minimize their shrinkage or expansion. The high-temperature lining consists of high-quality insulation boards UltraBoards and ITM-Fibermax^® Blanket made of polycrystalline mullite/alumina wool (PCW).

The company offers comprehensive services, including:

• Removal and disposal of old insulation.
• Furnace relining with or without new MolyCom^® heating elements made of molybdenum disilicide (MoSi₂).
• Custom manufacturing of complex vacuum-formed insulation shapes.

Modern high-temperature furnace linings address precision, efficiency, and sustainability challenges through innovative materials and techniques. SCHUPP^® Ceramics plays a key role in advancing this field, enabling safer and more efficient industrial processes.