National Repository of Grey Literature 5 records found  Search took 0.00 seconds. 
The Method of Glass Melting by Microwave Energy, New Possibilities of Casting Glass Sculpture
Matějková, A. ; Hájek, Jiří ; Hájek, Milan
For extending of possibilities for casting, there were developed new kind of glass and new temperature resistant moulds.
Bubble behavior in rotating cylinder with glass melt
Tonarová, V. ; Němec, Lubomír
Bubble removing during glass melting may be a slow process if only the gravitatiuonal force determines its rate. This wwork brings derivation of relations governing the one and multicomponent bubble behavior in a rotating cylindr.
Bubble distribution in Channels with glass melt
Cincibusová, P. ; Němec, Lubomír
Equations were derived describing bubble distribution in horizontal and vertical channels with glass melt.
The analysis of the melting process
Němec, Lubomír ; Jebavá, Marcela
The analysis of the melting process provides some non-traditional opportunities when intersifying the main homogenization processes.
Redox equilibria of sulphur in glassmelts
Kloužek, Jaroslav ; Němec, Lubomír ; Arkosiová, Miroslava
The combination of experimental and computational methods used for the study of redox equilibria of sulphur in glassmelts makes possible to reveal mechanism and time sequence of redox phenomena taking place during melting process. Both methods were applied for the optimization of sc. reducing sulphate refining realized by the addition of sulphate and reducing agent to the glass batch. The results of experiments supported by the model calculation showed that proper combination of both components at the same time improves homogenization and refining of glass melt and suppresses unwanted bubble nucleation at maximal melting temperatures.

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