Ceramic Honeycomb Substrate for Gasoline Engine
Product Description
Ceramic Honeycomb Substrate-----Material:cordierite
⊙ Our ceramic honeycomb substrate is used in a variety of catalytic convertor applications to help vehicle manufacturers to meet emission regulations.
⊙ We are a major supplier of cellular ceramic substrates for catalysts in China.
⊙ Automobile exhaust gases are conventionally purified with a catalyst supported on a ceramic body able to withstand high temperature. The preferred catalyst support structure is a honeycomb configuration which includes a multiplicity of unobstructed parallel channels sized to permit gas flow and bounded by thin ceramic walls. The walls of these channels provide the surface for precious-metal catalysts that convert noxious emissions into carbon dioxide, nitrogen and water vapor.
⊙ Our substrates enable highly efficient emissions control system by offering:
1. High surface area
2. Excellent thermal mechanical durability
3. Low pressure drop
4. Rapid light-off
5. System cost efficiency
Material Attributes
|
Parameter / Item
|
measurement
|
standard
|
our product data
|
|
|
Material: cordierite
|
%
|
≥90
|
≥95
|
|
|
Coefficient of thermal expansion
(20--800℃)
|
cm/cm/℃
|
≤1.8Χ10-6
|
1.3-1.5Χ10-6
|
|
|
Thermal stability (450℃)
|
times
|
≥3
|
≥3
|
|
|
Soften temperature
|
℃
|
1360
|
1440
|
|
|
Compression strength
|
A-axis
|
MPa
|
15.0
|
16.0
|
|
B-axis
|
MPa
|
3.0
|
5.0
|
|
|
Specific weight
|
Kg/L
|
≤0.50
|
0.42-0.49
|
|
|
Porosity
|
%
|
40-45
|
41
|
|
|
Water absorption rate
|
%
|
18-28
|
22-25
|
|
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