Honeycomb Ceramic Substrate

Synthetic cordierite is a magnesium-alumino-silicate ceramic material, practically all today's honeycomb ceramic substrate catalyst substrates are made of cordierite.
Honeycomb mic substrate catalyst substrates are manufactured in an extrusion process, raw materials such as alumina, talc, clay (kaolinite), and silica are reduced to powder and blended into a water-based paste. Additives which may be added in the process include lubricants (e.g. ethylene glycol), bonding agents (e.g. methylcellulose), and fluxes (alkaline hydroxides). Extrusions made from the paste are dried, cut to length, and calcined at temperatures above 1400°C.

Ceramic honeycomb substrate pictures

Honeycomb ceramic substrates are used in catalytic converters are normally made from a special type of ceramic material known as 'cordierite'. Liquid cordierite is extruded through a mould and then fired so that it dries out and becomes hard. By using different moulds, various size substrates can be extruded and the size of the channels (or cells) can also be varied. Because tooling is required, ceramic honeycombs are best suited to medium or large volume requirements unless a standard size can be used. Ceramic honeycombs are generally the most economical option for consumer appliances such as biomass stoves and pyrolytic self-cleaning ovens.
The size of the cells is a key variable contributing to the performance of a catalytic converter. However, rather than referring directly to the size of the cells, it is normal to quantify how many there are per unit of area, for example cells per square inch (cpsi) or cells per square centimetre.
Substrates slightly change their dimensions during calcination, parts of smaller size can be manufactured in a one-step process through predicting that change and extruding parts to dimensions which are slightly different from the specifications of finished product, larger diameter parts, on the other hand, might require a multi-step production process, the substrates are extruded and calcined to larger dimensions, followed by processing to meet their dimensional specifications, they are cut to the final length, their contours are machined, the outer skin is applied using ceramic paste, and the parts are oven-dried.
Ceramic honeycomb monoliths available shapes: rectangular, cylinder or ellipse, cell shapes in square, circle, hexagonal, triangle etc. we can also customized the production based on your drawing and samples, ceramic honeycomb with cell structure density ranging from 10 to 300cpsi/ 400cpsi/ 600cpsi (CPSI means cells per square inch).
Ceramic Honeycomb Substrate used in the catalytic converters have very low thermal expansion coefficient, high specific surface area, low pressure drop, rapid light-off and unique structures. Thousands of cells provide high surface for precious metal catalysts that convert noxious emission into water vapor, carbon dioxide and so on, honeycomb ceramics block available shapes: rectangular, cylinder or ellipse. Cell shapes in square, circle, hexagonal, triangle etc.
Catalyst substrate is crucial component influencing performance, robustness, and durability of catalytic converter systems, ceramic honeycomb substrate used in the catalytic converters have very low thermal expansion coefficient, high specific surface area, low pressure drop, rapid light-off and unique structures, thousands of cells provide high surface for precious metal catalysts that convert noxious emission into water vapor, carbon dioxide and so on, design targets for ceramic catalyst substrates include the following:

Product name: Porous Ceramic Substratre(monolith)

Chemical Properties:

Product name: Porous Ceramic Substratre(monolith)

Physical Properties:

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