Investigations Into All-Electric Melting Of Neutral Glass With Improved Reboil Behaviour

With regard to chemical stability, great demands are made on neutral glasses because of their pharmaceutical application, which requires a high standard of the quality parameters: bubble numbers, homogeneity, and reboil stability. Nowadays, acceptable results are only reached by fuel-fired special furnaces with very high specific energy consumption and engineering efforts. Up to now, efforts have been unsuccessful to melt neutral glass with sufficient glass quality all-electrically. The possible advantages, however, are worth treating this problem further and this paper examines them in more detail.