Honeycomb ceramics is a kind of porous industrial ceramics. Its internal structure is many through parallel channels. These honeycomb units are divided by lattice-like thin partitions of different shapes.
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Industrial Ceramic
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Honeycomb Ceramics Details
Since the advent of honeycomb ceramics, the development tends to be persified. The main materials are cordierite, aluminum titanate, silicon carbide, zirconia, silicon nitride, corundum, mullite, quartz, etc., and can also be two or more of them. made. At present, according to the application field, it can be pided into heat storage body, catalyst carrier, filter material, etc.
According to different conditions of use, select raw materials with different properties. According to the shape of the hole, it can be pided into square, regular hexagon, circle, triangle, etc. The shape of the hole has an impact on the specific surface area and opening rate of the honeycomb ceramics.
1.Strong adsorption capacity
2.Excellent stomatal structure
3.Good thermal stability
4.Good wear resistance
5.Low density
Project | 100*100*50MM | |
Thermal expansion coefficient(in/inK) |
1.5-1.8 |
|
Specific heat capacity(J/kgK) |
850-1000 |
|
Material density(kg/m3) |
1800-2000 |
|
Bulk density(kg/m3) | 500-680 | |
Thermal shock resistance (K) |
Max 500 |
|
Water absorption(%) |
20-25 | |
Max working temperature(℃) |
1300 |
|
Chemical Composition(%) |
Al2O3 |
30-38 |
SiO2 |
45-55 | |
MgO |
12-14 | |
Fe2O3 |
<1 | |
CaO+K2O+Na2O |
<1 |
1. Catalyst carrier
When used as a catalyst carrier, it is mainly used in automobile exhaust purification, boiler exhaust denitrification (NOx), industrial exhaust deodorization, removal of toxic and harmful gases, etc.
Catalyst supports for automobile exhaust purification are mainly cordierite honeycomb ceramic supports coated with γ-Al2O3.
2. Refractory kiln furniture
The quality of extruded honeycomb ceramic kiln furniture is 60%-75% lighter than traditional kiln furniture, and the heat transfer is rapid, which can realize fast firing. When using it to fire ferrite or other electronic ceramics, it is beneficial to improve the performance of the product.
3. Wall flow filter
Porous and thin-walled can filter and purify carbon particles in diesel engine gas exhaust (about 500°C).
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