• Silica Brick for Furnace Refractory System 1
  • Silica Brick for Furnace Refractory System 2
Silica Brick for Furnace Refractory

Silica Brick for Furnace Refractory

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
10000000 m.t./month

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With dense and smooth appearance, uniform corner and edge, pure color and luster and accurate size

1)Silicon oxide is above 95%.

2) Good acid erosion resistance.

3) High softening point with temperature.

4) No shrink in burn repeatedly.

5) Temperature of refractoriness under load is above 1650º C

 

Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products

 

Item

BG-94

BG-95

BG-96A

BG-96B

Chemical composition

SiO2

≥94

≥95

≥96

≥96

Fe2O3

≤1.5

≤1.5

≤0.8

≤0.7

Al2O3+TiO2+R2O


≤1.0

≤0.5

≤0.7

Refractoriness °C

1710

1710

1710

1710

Apparent Porosity%

≤22

≤21

≤22

≤22

Bulk Density g/cm3

≥1.8

≥1.8

≥1.8

≥1.8

True Density,g/cm3

≤2.38

≤2.38

≤2.34

≤2.34

Cold Crushing Strength Mpa

≥24.5

≥29.4

≥35

≥35

0.2Mpa Refractoriness Under Load T0.6 °C

≥1630

≥1650

≥1680

≥1680

Permanent Linear Change On Reheating

(%)1500°CX2h

0~+0.3

0~+0.3

0~+0.3

0~+0.3

20-1000°C Thermal Expansich10-6/°C

1.25

1.25

1.25

1.25

Thermal Conductivity (W/MK) 1000°C

1.74

1.74

1.44

1.44


Refractory for Furnace Silica Fire Brick


FAQ

Q1: How do you control the products quality?

A1: With strict quality control system throughout the materials selection and production process, our refractory and ceramic fiber products quality is effectively controlled to meet customer requirements.

From the raw materials selecting, our quality control begin. The quality certificates of raw materials are required and each batch will be tested before using. During production, the quality control are conducted by workers and then each piece will be sorted and examined by quality supervis


Q:What is the main material of silica brickIt's common, the kind we see so often!
More than 94% silica content. True density 2.35g/cm3. With acid resistance, slag erosion performance.
Q:Why is the new trend of the high thermal conductivity of silica brick
The use of high thermal conductivity of silica brick, reducing coke fuel consumption, reduce emissions of pollutants such as NOx, with considerable economic benefits and social benefits, is the future direction of the new technology of using coke oven refractory.
Q:Semisilica brick, clay brick, high alumina brick and what is the difference?
The share of A12O3 and SiO2 is different
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:What role does silica play in refractories?
Low fractory refers to the alumina content between 10%~30%, SiO2 content is less than 85%, semisilica brick SiO2 = 65%,The SiO2 content of not less than 93%, refractory material to natural quartz rock as the main raw materials are called silica, silica brick, silica brick, quartz glass and special products. China's literature generally put this type of product is called "siliceous refractory products", which is the most important brick.
Q:High temperature refractory material?
Special materials often use AZS brick (i.e. corundum brick), corundum brick, magnesia chrome bricks, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, alumina, Magnesium Oxide, beryllium and other refractory materials. Insulation refractories are often used diatomite products, asbestos products, insulation board. Unshaped refractories are often used refractory castable, refractory clay, refractory ramming material, refractory plastic and fettling material, fire resistance, gunning, refractory cast material, fireproof coating, lightweight refractory castable, gun mud.
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:The hot blast stove when the temperature did not rise against the brick interface decreased
Different insulation methods can be adopted according to the length of the stop time and the location and equipment of the overhaul. Gold, refractory material factory specializing in the production of various specifications of brick
Q:Semisilica brick interpretation
Good thermal shock resistance. In use, more high viscosity glass phase can be formed, and the masonry brick joint and the working surface are dense and the masonry is complete, which is beneficial to improve the impermeability of the masonry and reduce the erosion effect of the slag on the masonry.
Q:Can not use it two brick
Acidic silica brick refractory material, has good ability in acid slag erosion

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