Silica insulation brick is a kind of light weight insulation brick with silica content more than 91% and the bulk density 1.2g / cm3. It is made of fine divided silica as raw material, adding flammable substances to the ingredients or using a gas generation method to form a porous structure and firing. It is mainly used in various parts of the kiln that require heat insulation or light weight without direct contact with the molten material. The brick can not contact with alkaline refractory under high temperature, the maximum operating temperature is between 1200 and 1550℃.
Silica insulation brick can be used in glass kiln, hot blast stove, coke oven, wast incinerators for insulation.
Specification should be different according to different furnaces/kilns, standard shapes and customized drawings are acceptable.
|
Item |
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 |
|
0.2Mpa Refractoriness Under Load T0.6 °C |
≥1400 |
≥1420 |
≥1500 |
≥1520 |
|
Reheating Linear Change ratio, %/1450°CX2h |
0~+0.5 |
0~+0.5 |
0~+0.5 |
0~+0.5 |
|
Thermal Conductivity (W/MK) 350°C |
0.55 |
0.6 |
0.65 |
0.7 |
Have a question or need a quote? Please kindly send us a message and will feedback soon！
We are truly a manufacture, can not only provide the high quality products with the best price, but also offer the best pre-sale service and after-service.
Our company can offer one-stop refractory materials solution for kilns/furnaces, refractory brick, refractory castable, insulation products, ceramic fiber products, kiln refractory construction, etc.
Sure, samples are available, and you are welcome to visit our factory at anytime.
Good question, we are in the Xinmi City of Henan province,China’s largest refractory manufacturing base, the price and quality of the products can be guaranteed.
Of course, we have excellent technical team and can produce products according to customers’ different needs.
For all brick products, we have 1 year warranty, any quality problems on our side during this period, we will bear all the cost of shipment and replacement.
