Ceramic Honeycomb Substrate is made of cordierite, its merits of very low thermal expansion coefficient, high specific surface area, low air resistance, fast in temperature rising and unique structures which are perfect for car catalytic converter. The usual CPSI for honeycomb ceramic substrate is 400. The shape of honeycomb ceramic is round, racetrack, ellipse and other special shape according to the customer's requirement in order to meet the different cars models requirements. High specific surface area, low pressure drop, rapid light-off time and reliable & durable performance are achieved through high cell density of 400, 500 and 600 cpsi.
Honeycomb ceramic substrates are honeycomb-like structures with thousands of parallel channels. The walls of these channels provide the surface for precious-metal catalysts that convert noxious emissions into carbon dioxide, nitrogen and water vapor. All of these make our ceramic honeycomb an ideal catalyst substrate media for oxidation & reduction catalyst. Our typical substrate are available in a variety of sizes with the different shapes, such as: Round, elliptical, race track and so on.
Advantages:
*High specific surface area: Ensure exhaust gas could contact weigh catalyst enough
*Stable water absorption: Guarantee catalyst could be firmly and evenly coated on the surface of substrate, so it's no waste for too thick coating
*Warm up characters: After starting up engine, the temperature of substrate could reach the active temperature of catalyst in the shortest time
*Low exhaust resistance: Ask exhaust resistance of substrate to engine low, so that it won't affect the performance of engine
*High intensity: Substrates work in bumpy cars, so the intensity of substrates must be too high to be destroyed
*Perfect assembly: Substrates are parts of exhaust; Perfect appearance and exact dimension could ensure assembly perfect
| Items | Parameters |
| Cordierite crystal phase | ≥ 90% |
| Coefficient of Thermal Expansion(20-800 ° C) | ≤ 1.2 × 10-6/ ° C |
| Thermal Stability(20-650 ° C) | 3 times |
| Soften Temperature | ≥ 1400 ° C |
| Water Absorption | 23-25% |
| Bulk Density | 0.40-0.50Kg/L |
| Tolerance of outside dimensions | ± 1% |
| Compression Strength | Lengthways | ≥ 15MPa |
| Horizontal | ≥ 3MPa |
| Wall thickness | 100 CPSI | 0.43 mm |
| 200 CPSI | 0.32 mm |
| 300 CPSI | 0.30 mm |
| 400 CPSI | 0.18 mm |
| 600 CPSI | 0.15 mm |
| Shape | Hole density (hole/in2) | Size (mm) | Size (inch) |
| Round | 100/200/300 CPSI | Φ 190 × 200 | 7.48 × 7.87 |
| Round | 100/200/300 CPSI | Φ 190 × 305 | 7.48 × 12 |
| Round | 100/200/300 CPSI | Φ 228 × 305 | 8.97 × 12 |
| Round | 100/200/300 CPSI | Φ 240 × 76.2 | 9.45 × 3 |
| Round | 100/200/300 CPSI | Φ 240 × 100 | 9.45 × 3.94 |
| Round | 100/200/300 CPSI | Φ 267 × 305 | 10.50 × 12 |
| Round | 100/200/300 CPSI | Φ 286 × 100 | 11.26 × 3.94 |
| Round | 100/200/300 CPSI | Φ 286 × 305 | 11.26 × 12 |
| Round | 100/200/300 CPSI | Φ 305 × 330 | 12 × 13 |
