$Silica Brick for Glass Kiln/Furnace - Refractory Silica Brick System 1$
$Silica Brick for Glass Kiln/Furnace - Refractory Silica Brick System 2$

$Silica Brick for Glass Kiln/Furnace - Refractory Silica Brick$

$Silica Brick for Glass Kiln/Furnace - Refractory Silica Brick System 1$

$Silica Brick for Glass Kiln/Furnace - Refractory Silica Brick System 2$

Silica Brick for Glass Kiln/Furnace - Refractory Silica Brick

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 100000 m.t./month

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General Information　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

Our Refractory Silica Brick for glass kiln has the characteristics of high purity, high density, high strength and high soft, high refractoriness. It also has the ability of resistance to acidic and alkalic steam attack with high performance of flushing resistance. 　　　　　　　　　　　　　　　　　　

Refractory brick is the necessary material of high- temperature service, mainly use for industrial furnaces and kilns and thermal equipments.　　　　　　　　　　　　　　　　　　　　　　　

1. Silica brick is the main refractory bricks used in glass melting furnace;its main crystal phase is Tridymite.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
2. Silica brick for glass melting furnace is used in building checker chamber, chute, combustion

Feature
Superior resistance to acids (including oxidizing)
Resistance to chlorine
Resistance to thermal shock and pressure changes
Low thermal and chemical expansion

Technical Data

Brand Item	GZ-95	RG-95		JG-94
Brand Item	GZ-95	Dome & Wall brick	Checker	Sole & wall brick	Others
Refractoriness º C ≥	1710
Permanent liner change 1450 º C × 2h %				+0.2 0
Apparent Porosity (%) ≤	22	22	23	22	24
True Density (g/cm3) ≤	2.37	2.35	2.35	2.34	2.35
Cold Crush Strength (MPa) ≥	29.4	35	30	30	25
Thermal Expansion(1000 º C ) %		1.26	1.26	1.28	1.30
Refractoriness under Load 0.2MPa Ta( º C ) ≥	1650			1650	1650
Chemical analysis SiO 2 % ≥	95	95	95	94	94

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$Refractory Silica Brick for Glass Kiln/Furnance$

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:Such purpose and scope please give me detailed points thank you because I am learning stage: Acidic silica brick refractory material, has good acid resistance and slag erosion, softening temperature is as high as 1640 to 1670 DEG C, in the long-term use volume is relatively stable under high temperature. The silica mineral phase is mainly composed of tridymite and cristobalite, there is a small amount of quartz and glass. Tridymite and cristobalite and quartz remaining at low temperature due to phase change, volume changes greatly, so the brick thermal stability at low temperature is very poor. In use, under 800 degrees Celsius, slowly heating and cooling, so as not to produce cracks. The use of temperature in blast furnace so should not be below 800 DEG on. The properties and process of silica crystal with SiO2 transformation is closely related, therefore, the proportion of it is one of the important quality indexes of silica brick. General requirements below 2.38, high quality silica brick should be less than 2.35. The true density is small, reflecting a large number of scale quartz and square quartz in the brick, the residual quartz is small, so the residual line expansion is small, and the strength is decreased in useThe raw materials for the manufacture of silica brick. The higher the SiO2 content of silica raw material, the higher the refractoriness. The most harmful impurities are Al2O3, K2O, Na2O and so on. They seriously reduce the refractoriness of refractory products. Brick with SiO2 content of not less than 96% of silica as raw materials, adding mineralizer (e.g. millscale, lime) and binder (such as molasses, sulfite pulp waste liquid), after mixing, molding, drying, sintering and other processes in the system.

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:Physical solid waste disposal: Too much addition will reduce the refractory and mechanical strength, increase porosity, so the amount of waste brick should not be too much.

Q:The chemical composition of silica brick and its physicochemical index?: ????Al2O3 SiO2??????fe2o3??????cao???????r2o93～98?0.5～2.5?；；?0.3～2.5??0.2～2.7；??1～1.5；

Q:Common bond brick?: When adding ingredients, the amount of lime added shall be converted to CaO, and the amount of addition varies depending on the product, usually fluctuating at 1.5~2.5%. For example, the production of coke oven silica brick, the dosage of CaO is 2.0~3.0%; the production of electric furnace top brick, the dosage of CaO is 1.4~1.75%.

Q:The hot blast stove when the temperature did not rise against the brick interface decreased: Insulation of hot blast stove, key insulation silica brick hot stove, hot blast stove is shutdown or need repairing in blast furnace.

Q:What is the silica refractory products?: Refractory brick with silica content greater than 90%.

Q:Semisilica brick interpretation: High temperature volume stability. Volume change is small.

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