Good Chemical Corrosion Resistance Silica Brick for Glass Melting Tanks

Silica brick for glass kiln is an acid refractory material mainly made of tridymite, cristobalite and a small amount of residue. The refractory raw material is natural silica sand, and its SiO2 content should be above 96%. Silica brick has high temperature and volume stability, no pollution to glass liquid, chemical corrosion resistance, small bulk density, and can reduce the weight of the furnace body.

Silica Brick Characteristics:

1. Stable volume under the high temperature.
2. No pollution to the glass liquid.
3. Good resistance to chemical attack.
4. Small bulk density is small.

Silica Brick Application:

Silica bricks are used in the roof and superstructure of glass melting tanks as well as for hot repairs.

Silica Brick Technical Data Sheet:
 

Item		Unit	Silica Brick
Brand			FG-94	FG-93
Chemical Composition	SiO2	%	≥94	≥93
Bulk Density		g/cm3	≥1.9
Apparent Porosity		%	≤23	≤25
Cold Crushing Strength		MPa	≥20	≥17
Refractoriness		℃	≥1710	≥1690
Refractoriness Under Load		℃	≥1640	≥1620
Thermal Conductivity		KJ/m.h.℃	3.762+3.344x10-3t