Refractory Silica Brick for Glass Furnace G-94

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Tianjin
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TT OR LC
Min Order Qty:
15 m.t
Supply Capability:
30000 m.t/month

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General Information

CMAX silica brick using high quality silica as raw material to ensure superior performance of silica bricks, the raw materials is high quality dinas rock with SiO2 of 99% min. Its unique structure helps ease forming. Moreover, advantages of complete transformation after sintering and lower residual quartz enable to produce super-duty silica bricks.    

 

Performance:

The silica bricks for glass furnace is characterized by high purity, less impurity, good corrosion resistance, higher bulk density, complete phase transformation, lower residual quartz, high RUL, lower thermal expansion and stable volume at high temperature. This leads to increase in service life of glass furnace and reduction in energy consumption. These products have found wide application in crown and key areas and been highly appreciated by clients.

 
Application
CMAX Silica bricks are commonly applied in

Coke oven

Hot blast stoves

Glass furnace


Technical Data

  ITEM

For Hot-Blast Stoves

                   For Glass Furnace

  S-94

S-95

  S-95B

  G-94

  G-95A

  G-95B

  G-96A

  G-96B

  SiO2, %

  ≥ 94

  ≥ 95

  ≥ 95

  ≥ 94

  ≥ 95

  ≥ 95

  ≥ 96

  ≥ 96

  Fe2O3, %

  ≤ 1.5

  ≤ 0.5

  ≤ 1

  ≤ 1.5

  ≤ 1.2

  ≤ 1.2

  ≤ 0.8

  ≤ 1

  Residual Quartz, %

  ≤ 1

  ≤ 1

  ≤ 1

  ≤ 1

  Apparent Porosity

  ≤ 23

  ≤ 23(24)

  ≤ 21(23)

  ≤ 24

  ≤ 22(24)

  ≤ 22(24)

  ≤ 22(24)

  ≤ 22(24)

  True Density, g/cm 3

≤ 2.35

  ≤ 2.34

  ≤ 2.33

  ≤ 2.35

  ≤ 2.35

  ≤ 2.34

  ≤ 2.34

  Cold Crushing Strength, Mpa

  ≥ 29.4

  ≥ 30(27)

  ≥ 30(20)

  ≥ 30

  ≥ 30(35)

  ≥ 30(35)

  ≥ 30(35)

  ≥ 30(35)

  Refractoriness Under Load, º C

  ≥ 1650

  ≥ 1600

≥ 1630 

  ≥ 1660

  ≥ 1650

  ≥ 1680

  ≥ 1670

  Permanent Linear Change, %

  1500º CX4h, ± 0.2

  1450º CX2h, ± 0.5

 Refractory Silica Brick for Glass Furnace G-94

 

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Q:Semisilica brick, clay brick, high alumina brick and what is the difference?
This is a kind of refractory material is divided into three types: semisilica brick (A12O315 ~ 30%), clay brick (A12O330 ~ 48%), high aluminum brick (A12O3>48%).
Q:Brick
An acid refractory consisting mainly of quartz and square quartz and a small amount of residual quartz and glass.More than 94% silica content. True density 2.35g/cm3. With acid resistance, slag erosion performance. 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 quartz in the body. 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:Semisilica brick interpretation
High temperature volume stability. Volume change is small.
Q:Why will expand when heated brick
After high temperature after the formation of tridymite and cristobalite and quartz and a small amount of residual glass phase, quartz heating to 220-240 DEG C, in a certain degree of thermal expansion, brick maximum expansion occurs in 100~300 DEG C, 300 expansion before the total amount of expansion is about 70%~75%.
Q:What role does silica play in refractories?
The production of clay brick refractory clay raw material is natural, its main mineral is kaolinite (formula Al2O3 - 2SiO2 - 2H2O), clay brick containing SiO2 in 45% ~ 65%, belongs to the weak acid refractory materials, have a certain ability to resist acid slag, but easy to be alkaline slag erosion.
Q:Why is the new trend of the high thermal conductivity of silica brick
The high thermal conductivity of silica brick all inherits the advantages of traditional coke oven silica brick, on the basis of further highlight the characteristics of high thermal conductivity.
Q:Which material is good for furnace refractory?
Kiln types of refractories is very extensive, selection of refractory materials according to the type of furnace furnace temperature and use of selected refractory material, refractory material is divided into custom products of refractory bricks and unshaped refractory castable series products. According to chemistry, it is divided into acidic, neutral and alkaline materials.
Q:What is acid refractory?
Refractory materials are mainly quartz glass products, combined with fused quartz products, silica brick and unshaped refractories. Semi siliceous refractory materials are generally attributed to this category. As for fireclay refractories, they are also classified as semi acidic or weakly acidic refractories. Also, zircon refractory and silicon carbide refractory for special acidic refractory materials are also classified into this category.
Q:Such purpose and scope please give me detailed points thank you
Acid refractory brick is mainly composed of tridymite and cristobalite and quartz and a small amount of residual glass phase.
Q:Why is the highest brick coke oven temperature measuring point temperature not exceeding 1450
Brick belongs to refractory materials, with strong resistance to acid slag or acid solution erosion ability, high load softening temperature are excellent properties of silica brick, usually 1640-1680 C.

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