Silica Insulation Bricks
Silica insulation bricks are one kind of light weight insulation bricks with over 91% silica content and less than 1.2g/cm3 density, silica insulation brick can service in the high temperature between 1500~1550℃ for long term and silicon insulation brick is wildly used for the insulation of industrial furnace such as glass plant furnace and other furnace boilers with features of light weight, high strength and low thermal conductivity.
Silica Insulation Bricks Description
Silicon insulation bricks 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 Silica Insulation Bricks
.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 Silica Insulation Bricks
Silica insulation firebrick 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.
Rongsheng Refractory Silica Insulation Bricks Specifications
| Silica Insulation Bricks | |||||
| Item/Index | RS-0.8 | RS-1.0 | RS-1.1 | RS-1.15 | RS-1.2 |
| SiO2 % | ≥88 | ≥91 | ≥91 | ≥91 | ≥91 |
| Bulk Density g/cm3 | ≤0.85 | ≤1.00 | ≤1.10 | ≤1.15 | ≤1.20 |
| Cold Crushing Strength Mpa | ≥1.0 | ≥2.0 | ≥3.0 | ≥5.0 | ≥5.0 |
| Thermal Conductivity (W/MK) 350℃ | 0.55 | 0.55 | 0.60 | 0.65 | 0.70 |
| Permanent Linear Change On Reheating (%) 1450℃*2h | 0~+0.5 | 0~+0.5 | 0~+0.5 | 0~+0.5 | 0~+0.5 |
| 0.2Mpa Refractoriness Under Load T0.6℃ | ≥1400 | ≥1420 | ≥1460 | ≥1500 | ≥1520 |
| 20~1000℃ Thermal Expansion 10.6/℃ | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
Application of Silica Insulation Bricks
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.
Silica Insulation Bricks Manufacturer from RS Refractory Factory
Rongsheng refractory factory has been insisting on produce high quality silicon insulation block for many years. RS company has enough production experience and advanced manufacturing technology. also has professional engineer to provide you with professional advice on your actual application. If you have any question about silicate insulation block, please contact us for more professional information, our sales will reply you at first time.
