Ceramic Catalytic Converter Substrate Manufacturing Process

Metallic cores offer a significant advantage being more economical and less restrictive than old ceramic cores while maintaining high durability.

Ceramic catalytic converter substrate manufacturing process.

The dimpled fabric then undergoes high temperature firing for hardening and degreasing and then water quenching to harden the metal which improves heat tolerance. It offers a high surface area for washcoat deposit like al 2 o 3 and can be further impregnated with a catalytic component such as platinum. Performance industries specializes in the manufacture of metal high performance catalytic converters and metallic substrates. A ceramic catalytic converter is made by first creating an electrode by cutting space apart holes through an electrode block threading an electrode wire through each hole in the block and performing wire cutting electrical discharge machining to form a cutting surface with a plurality of cell walls converging at rounded corners.

The substrate of a catalytic converter fulfils a vital role in supporting the catalytic material and at the same time must be capable of withstanding some extremely arduous conditions. The electrode is used to cut an extrusion die a feedhole is. Operating temperatures may be in excess of 900 and the substrate will also be exposed to fast moving corrosive exhaust gases rapid changes in temperature. A manufacturing process for producing a particulate reactor substrate according to the invention includes the steps of first roll stamping small raised dimples into the fabric substrate to control its coiled density.

The ceramic monolith used in converters has a pore structure around 3 to 4 µm pores which allows both mechanical and chemical link to the washcoat.