Some features of the melting of borosilicate glasses in continuous furnaces

Journal Article · Fri Jul 01 00:00:00 EDT 1988 · Glass Ceram. (Engl. Transl.); (United States)

OSTI ID:6152221

Sivko, A P

The quality of G40-1 glass obtained in continuous gas furnaces was studied. The solubility of the gases in the G40-1 glass was determined for acceptable articles obtained in the two furnaces. The effect of repeat heating of the G40-1 glass in the forming zone was studied to find reasons for the formation of seeds and bubbles. It was shown that they form when scale from hot angle-bar supporting the plate-blocks of the crown fell into the glass of the working end of the furnace if the lining of the curtain wall has not been adequately sealed. When borosilicate glass with a large concentration of the boron oxide phase was melted in continuous furnaces it was not permissible to have a positive pressure of the gas medium in the sub-crown space.

• Research Organization: Svetotekhnika Glass-Planning Organization (USSR)
• OSTI ID: 6152221
• Journal Information: Glass Ceram. (Engl. Transl.); (United States), Vol. 44:11-12; Other Information: Translated from Steklo Keran.; 44: No. 11, 18-19(Nov 1987)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BOROSILICATE GLASS
MELTING
GAS FURNACES
PERFORMANCE
BORON OXIDES
BUBBLE GROWTH
DEFORMATION
ELECTRIC CONDUCTIVITY
GASES
IMPURITIES
LINERS
QUALITY CONTROL
REFRACTORIES
SOLUBILITY
TEMPERATURE EFFECTS
THERMAL EXPANSION
VISCOSITY
BORON COMPOUNDS
CHALCOGENIDES
CONTROL
ELECTRICAL PROPERTIES
EXPANSION
FLUIDS
FURNACES
GLASS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360204 - Ceramics
Cermets
& Refractories- Physical Properties