Extending the service life of H-cassettes

Refratechnik Ceramics has developed a base frame that minimizes spalling on H-cassettes, thus increasing their service life accordingly.

Since the materials of which existing kiln-car superstructures are made have coefficients of thermal expansion that differ from those of the cassette material, the cassettes‘ feet are liable to spall, or “chip“. If the base frame and the cassettes are made of identical-grade material, they all have the same coefficient of thermal expansion. That minimizes spalling, expands production capacity and reduces the share of energy consumption attributable to kiln furniture.

The gain in production capacity and the reduction in energy consumption are discussed in detail in this lecture.

Mario Hollmann, Refratechnik

Ceramics GmbH


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