Silica Brick - Fused Silica Refractory Bricks

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1.Good acid and erosion resistance;
2.Widely used for different furnace;
3.Good bonding and structural strength of furnace.

Features:

1.Good acid and erosion resistance, powerful anti high-temperature strength.

2.Soften melting temperature is 1620~1670 °C.

3.Low thermal shock resistance.

4.Natural silica as raw material, plus regular mineralizer.

5.Ensure good bonding and structural strength of furnace.

6.Good heat resistance and long service life.

Application:

1.Glass melting furnace, ceramic frit kiln, sodium silicate furnace, soaking furnace, ceramic kiln, etc

2.Coke oven's coking chamber, combustion chamber walls, steel open-hearth's regenerator and sediment chamber, etc.

3.Load-bearing parts of high temperature hot air furnace and acid open-hearth furnace roof, etc.

Item	Properties
Item	BG-96A	BG-96B	BG-95A	BG-95B
SiO2,%	96	96	95	95
Fe2O3 ,%	0.8	1.0	1.2	1.2
Melt index,% Unit weight<20KG Unit weight≥20KG	0.5 0.6	— —	0.7 0.7	— —
Cold Crushing strength MPa, Unit weight<2KG Unit weight≥20KG	35(30) 30(25)
Softening temperature under load,°C	1680	1670	1660	1650
Apparent porosity %	22(24)
Bulk density,g/cm3	1.85-1.9
True density,g/cm3	2.34		2.35
Application	sodium silicate furnace,ceramic frit furnace ,glass furnace,coking furnace, metallurgical furnace and other furnaces

$Fused Silica Refractory Bricks$

Q:What is the main material of silica brickIt's common, the kind we see so often!: Higher high temperature strength. The softening start temperature is 1620~1670 degrees. Long term use at high temperature without deformation. The thermal shock resistance is low (the heat exchange in water is 1~4 times). The natural silica is used as the raw material, and a proper amount of mineralizer is used to promote the transformation of quartz into phosphorus and quartz. Slowly sintered at 1350~1430 DEG C in the reducing atmosphere. When heating up to 1450 degrees, the total volume of 1.5~2.2% expands, and the residual expansion can close the kerf and ensure the airtight and structural strength of the masonry.

Q:Why in the production of the brick to detect the volume density: Density is the property of material, different density of materials, density of the same kind of material is not up to standard, affecting performance.

Q:Why is the three oxidation of two silicon is very harmful impurities in silica brick: Can generate the material needs is the best way to see the impurity problem!! the first consideration is whether can get the material impurities with what method choice after the time! Miscellaneous reactions cannot have new impurity formation! Selected cannot and need material reaction reagent!

Q:Such purpose and scope please give me detailed points thank you: Mainly used for coke oven carbonization chamber and the combustion chamber wall, open hearth furnace regenerator and a sediment chamber, soaking furnace, glass furnace, refractory materials and ceramic brick kiln, kiln vault and other load-bearing parts. Also used for high temperature bearing part of hot blast stove and acid open hearth furnace.

Q:The brick is mainly used in the place?: Partitions used in coking and combustion chambers for coke ovens

Q:The difference between clay refractory bricks and refractory brick in the application.: Clay brick features good thermal shock resistance and low price, but high temperature performance is not well integrated, and the long-term use temperature is not higher than 1300 degrees. It is widely used in low temperature parts of various kilns.

Q:The difference between clay refractory bricks and refractory brick in the application.: Brick bearing soft temperature and close to the melting point, high temperature strength, can be in high temperature (above 1400 degrees) under the condition of long-term use,

Q:What are the main constituents of refractory bricks?: (a) containing refractory brick brick, refers to more than SiO293%, is the main varieties of acid resistant brick. It is mainly used for coke oven building, also used in furnaces all kinds of glass, ceramic and carbon calciner, refractory brick arches and other load-bearing parts, is also used in high temperature bearing part of hot blast stove, but should not be used in thermal equipment below 600 DEG C and the temperature fluctuation in the.

Q:Common bond brick?: Lime should contain a lot of active CaO, I decompose CaCO3 and MgCO3 not more than 5%, Al2O3+Fe2O3+SiO2 no more than 5%. When the content of large particles, burned Ca-CO3 and over burned lime, the product produced caves, affecting the quality of products.

Q:Can not use it two brick: Acidic silica brick refractory material, has good ability in acid slag erosion

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