No Thermal Expansion Refractory Silica Bricks

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10 m.t.
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No thermal expansion silica bricks also known as fused silica brick ,fused silica brick or silica bricks. It has a very low thermal expansion coefficient. Excellent thermal shock resistance. Good structural strength at high temperatures. High content of SiO2 etc. The product can be widely used in various types of coke oven heat fast restoration. Coke oven maintenance time shortens greatly. Ensure the quality of coke oven repair. Improve the efficiency of coke oven production. We not only provide hot repair methods on coke oven and also contract hot repair project for coke oven. 



No thermal expansion silica bricks has better thermal shock resistance, much lower thermal expansion, and can be used to do hot repair.
Fused Silica Brick for Hot Repair of Coke Oven is similar to general silica brick, but it has better thermal shock resistance.
Our fused silica bricks can remain the original shape of design as well as increasing the glass furnace service life.
The founder of our company is an expert in zero expansion silica brick(also called fused silica brick), fused silica bricks are tested to perform excellently in service of glass furnace.


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No Thermal Expansion Refractory Silica Bricks

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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.
Q:The hot blast stove when the temperature did not rise against the brick interface decreased
How to keep the brick masonry temperature not lower than 600 DEG C, while the exhaust temperature is not higher than 400 DEG C.
Q:The formula in the refractory brick, and firing curve, who knows?
Add 1.8-2.2% of the total weight of the main raw material, and then add lime milk, rolling for 10-15 minutes, and finally add pulp, rolling for 10-15 minutes, out of the mill, forming billet.
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:Why in the production of the brick to detect the volume density
Fast density test, please consult an instrument.
Q:The specific content is what gb/t2608-2012 brick
Quality assessment procedures, packaging, marking, transport, storage, and quality certificates. Suitable for siliceous refractory bricks.
Q:How much is the highest melting point of silicon?
Mainly used for partition, carbonization chamber of coke oven and combustion chamber open hearth furnace regenerator and a sediment chamber, soaking furnace, glass melting furnace refractories and ceramic 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:Why will expand when heated brick
In the process of SiO2 drying, the four crystalline transformation points of 117, 163, 180~270 and 573 DEG C are found, among which the volume expansion caused by the 180~270 is the largest.
Q:Why is the highest brick coke oven temperature measuring point temperature not exceeding 1450
That is because the brick load softening point the maximum temperature is 1450 degrees.
Q:How to improve the thermal conductivity of the coke silicabrick rate?
The content of SiO2 is 98.23% crystalline silica as raw material, with sulfite pulp liquid as binder, millscale and lime as mineralizer, by Jin Hongshi (TiO2) as additive, can improve the rate of thermal conductivity of silica brick for coke oven. When the rutile content is 1.5%, the coefficient of thermal conductivity of silica brick for coke oven is 2.66W/ (m.k).

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