Fused silica rolls are equipped for the steel sheet and glass ribbon transferring and heat treatment. Low thermal conductivity of the fused silica reduces the over-cool and stress of the steel surface and glass surface, thus the cracks are reduced or eliminated. The service life of the fused silica roll is long because of the ceramics worn-resistant. The cost of steel sheet, the wafer and the glass ribbon can be reduced; the quality can be improved at the same time by using fused silica rolls.

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