Yixing Weite Chinaware Co., Ltd
Weite Ceramics Co., Ltd
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Honeycomb Ceramic Regenerator Alumina Ceramic Accessories Machinery Industry
Alumina ceramic is a ceramic material with alumina as the main body, which is used for thick film integrated circuits. Alumina ceramics have better conductivity, mechanical strength and high resistance.
The use of honeycomb ceramics is very wide, as follows:
1. Catalyst Carrier
When honeycomb ceramics are used as catalyst carriers, they are mainly used in automobile exhaust purification, boiler exhaust denitration (NOx), industrial exhaust deodorization, and removal of toxic and harmful gases.
The honeycomb ceramic catalyst carrier for automobile exhaust gas purification is mainly a cordierite honeycomb ceramic carrier coated with γ-Al2O3.
2. Refractory kiln furniture
The quality of extruded honeycomb ceramic kiln furniture is 60%-75% lighter than that of traditional kiln furniture. The heat transfer is rapid, which can achieve rapid firing. When it is used to burn ferrite or other electronic ceramics, it is beneficial to improve the performance of the product.
3. Wall flow filter
The porous thin-walled honeycomb ceramics can filter and purify the carbon particles in the diesel exhaust gas (about 500 ℃).
| Material Project | Alumina AL203 | Silicon carbide sic | Silicon nitride sin | Silicon nitride sin | ||||
| Color | Ivory | black | black | Milky white, gray black | ||||
| Content(%) | 99.5 | …… | …… | …… | ||||
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| Density | Kg/m³ | 3.9*10 | 3.16*10 | 3.3*10 | 6.0*10 | |||
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Mechanical behavior
| Vickers hardness | Gpa | 16.0 | 23.0 | 14.0 | 13.2 | 12.7 | |
| Flexural strength | Mpa | 360 | 450 | 1020 | 1000 | 1470 | ||
| Compressive strength | Mpa | 2350 | …… | …… | …… | …… | ||
| Fracture toughness | Mpa | 4 | 2-3 | 7 | 4-5 | 4-5 | ||
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Thermal performance
| Linear expansion coefficient | 40-400℃ | ×10-5/℃ | 7.2 | 3.7 | 2.8 | 10.5 | 10.8 |
| 40-800℃ | 8.0 | 4.4 | 3.3 | 11.0 | 11.3 | |||
| Thermal conductivity | W/(m·k) | 32 | 200 | 27 | 3 | 3 | ||
| Specific heat | J/(kg·k) | 0.78*10 | 0.67*10 | 0.65*10 | 0.46*10 | 0.46*10 | ||
| Thermal shock resistance (in water) | ℃ | 250 | …… | ＞800 | 300 | 350 | ||
| Electrical performance | Dielectric strength | V/m | 15*105 | …… | 13*105 | 11*105 | …… | |
| Volume resistance(20℃) | Ω·cm | ＞1014 | 108 | 1014 | 1013 | …… | ||
| Dielectric constant | …… | 9.6 | …… | 9.9 | 33 | …… | ||
| Loss factor | ×10-4 | 10 | …… | …… | 520 | …… | ||
Honeycomb ceramic regenerators are currently widely used in energy-saving technologies for industrial thermal engineering equipment, so that industrial thermal engineering equipment can improve efficiency, reduce energy consumption, increase output and improve quality. It is an important and effective means to solve energy and environmental problems. The cross-sectional holes of the honeycomb ceramic regenerator mainly have two kinds of hole structures of square and regular hexagon, and the holes are straight channel structures parallel to each other. This structure greatly reduces the resistance of the air holes, and greatly improves the single hole volume heat exchange efficiency of the heat storage body.
Widely used in steel, machinery, building materials, petrochemical, non-ferrous metal smelting and other industries.
The honeycomb ceramics are composed of countless equal holes of various shapes. The large number of holes has reached 120-140 per square centimeter, the density is 0.3-0.6 grams per cubic centimeter, and the water absorption rate is as high as more than 20%.
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1. Are you a businessman or a manufacturer?
We are a company, we have our own factory
2. How long is your delivery time?
Negotiable
3. Can the product be customized?
Can be customized
4. What is the product packaging?
Carton or according to customer requirements