China Wholesale Buy Fire Bricks - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng

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We keep improving and perfecting our products and service. At the same time, we work actively to do research and development for Refractory Casting, Mullite Castable, Castable Material, Honesty is our principle, professional operation is our work, service is our goal, and customers' satisfaction is our future!
China Wholesale Buy Fire Bricks - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng Detail:

Silica Insulation Bricks Description

Light Weight Silica Insulation Brick adopt finely divided silica ore as the raw material. the critical particle size is not more than 1mm, therein more than 90% particle size is less than 0.5mm. silicate insulation brick is made by adding flammable substance in the burdening or adopting gas bubble method to produce porous structure through firing, silicate insulation bricks also can be made to be unburned product.

Properties of Light Weight Silica Insulation Brick

  • Good thermal conductivity,
  • Small residual swell,
  • Strong acid-resistant slag erosion,
  • Light weight and Eco friendly,
  • Good thermal shock resistance,
  • High temperature stable volume change,
  • Strong high temperature mechanical strength.

Manufacturing Process of Light Weight Silica Insulation Brick

Light Weight Silica Insulation Brick puts raw materials and water into a kneading equipment according to a certain proportion and then kneaded into mud, shape the mud into bricks through molding by machine or manpower. then dry the bricks till the residual water content is lower than 0.5%, which prevent the volume expansion from the crystal transformation of SiO2 and fire the shaped bricks in the high temperature.

RongshengLight Weight Silica Insulation Brick Specifications

Items QG-1.0 QG-1.1 QG-1.15 QG-1.2
SiO2  % ≥91 ≥91 ≥91 ≥91
Bulk Density  g/cm3 ≥1.00 ≥1.10 ≥1.15 ≥1.20
Cold Crushing Strength  MPa ≥2.0 ≥3.0 ≥5.0 ≥5.0
0.1Mpa Refractoriness Under Load   °C ≥1400 ≥1420 ≥1500 ≥1520
Reheating Linear Change (%) 1450°C×2h 0~+0.5 0~+0.5 0~+0.5 0~+0.5
20-1000°C Thermal Expansion Coefficient ×10-6℃-1 1.3 1.3 1.3 1.3
Thermal Conductivity  (W/(m·K)  350°C±10℃ ≤0.55 ≤0.6 ≤0.65 ≤0.7

Application of Light Weight Silica Insulation Brick

Silica insulation refractory brick can be used in the glass furnace and hot blast stove,silica insulation block also can be used in coke ovens, carbon forging furnace and any other industrial furnaces.


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China Wholesale Buy Fire Bricks - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng detail pictures

China Wholesale Buy Fire Bricks - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng detail pictures

China Wholesale Buy Fire Bricks - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng detail pictures

China Wholesale Buy Fire Bricks - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng detail pictures


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Dedicated to strict quality management and thoughtful client services, our experienced staff customers are generally available to discuss your demands and guarantee full client pleasure for China Wholesale Buy Fire Bricks - Light Weight Silica Brick Kiln Refractory Bricks SiO2 91% – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: Estonia, Hungary, Malaysia, We've got sufficient experience in producing products according to samples or drawings. We warmly welcome customers from home and abroad to visit our company, and to cooperate with us for a splendid future together.
  • The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
    5 Stars By Octavia from Saudi Arabia - 2018.06.26 19:27
    In our cooperated wholesalers, this company has the best quality and reasonable price, they are our first choice.
    5 Stars By Christine from United Kingdom - 2018.06.18 17:25
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