Seiichiro Manabe

Attempts to avoid cracks during drying

Abstract A new technique for avoiding cracks during drying is proposed; increasing the hydroxy groups in the gels. By this technique a drying rate of 1.33 g/h was attained, which is approximately 5 times faster than non-treated gels (0.27 g/h). Further, this technique can easily be applied to change the microstructure of the gels.

Effect of sodium sulfate and temperature on the fining of float glass

Abstract The effect of sodium sulphate and temperature on the fining of float glass during the melting process as well as the cooling process was investigated by measuring the seed count and seed size distributions and analyzing the gas composition in the seed. The mechanism of fining in a tank furnace is discussed.