No Thermal Expansion Refractory Silica Bricks

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Tianjin
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10 m.t.
Supply Capability:
100000 m.t./month

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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. 

 

Feature

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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Q:The introduction of silica brick
The silica mineral phase is mainly composed of tridymite and cristobalite, there is a small amount of quartz and glass
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).
Q:The production of brick, the ingredients of why join the waste brick?
Too much addition will reduce the refractory and mechanical strength, increase porosity, so the amount of waste brick should not be too much.
Q:Can not use it two brick
Acidic silica brick refractory material, has good ability in acid slag erosion
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, but the anti alkali erosion ability, thermal shock stability is the worst, a scrap. The brick is generally used in the coke oven, glass kiln. Other industries basically do not use.
Q:How much is the highest melting point of silicon?
Acidic silica brick refractories, softening temperature is as high as 1640 to 1670 DEG C, in the long-term use volume is relatively stable under high temperature. More than 94% silica content.
Q:The high thermal conductivity of silica brick and traditional brick what is the difference?
Brick, high thermal conductivity has been greatly improved in terms of morphology, crystal structure, physicochemical index. The structure and morphology of high thermal conductivity of silica brick,Structure and morphology of high thermal conductivity and the traditional brick brick magnified 20 times were compared, high thermal conductivity silica pore size distribution is more uniform and finer.
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 formula in the refractory brick, and firing curve, who knows?
By silica powder, 81-85%, perlite 15-19%, plus the total weight of the main raw materials of the following accessories
Q:How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?
Mainly from the impurities to determine how much, generally less impurity single color brick.

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