Catalytic Converter Metal Vs Ceramic
The catalytic converter s construction is as follows.
Catalytic converter metal vs ceramic. The grid also has to be heated up to ultra high temperatures to work correctly. Vaneman ac rochester division general motors corporation abstract metal foil substrates are being promoted as the substrates of choice for automotive catalytic converters in the european market. Prior to the mid 1980s the catalyst material was deposited on a packed bed of alumina pellets in early gm applications metallic foil monoliths made of kanthal. In small sizes under 6 od the ceramic is usually more cost effective per piece over the metallic but due to difficulty in packaging ceramic and extra processes required the metallic total system cost often is more advantageous.
Catalytic converters have a ceramic grid inside that the exhaust gases flow through. The catalyst support or substrate for automotive catalytic converters the core is usually a ceramic monolith that has a honeycomb structure commonly square not hexagonal. The metallic ones are usually used on obd1 applications. The price difference in any catalytic converter is based on the loading not the base material of the honeycomb.
Many coating companies will suggest ceramic to avoid production line change overs from ceramic to metallic. Cats start working at 1200f and are most efficient around 2200 2300f. I contacted our representative at magnaflow about the differences in the metallic and ceramic catalytic converters. This screen is dipped and coated in a bath of liquid metal.
Ceramic product selector contact us about. The inside of the catalytic converter is a honeycomb set of passageways or small ceramic beads coated with catalysts. This grid is coated with a metal usually platinum or palladium that acts as the catalyst with the exhaust gases. Pi is a high performance catalytic converter manufacturer specializing in the development and manufacturing of fabricated metal products and catalyst solutions for all applications.
The recipe for this bath is made up of precious metals like platinum gold and rhodium. A chemical reaction takes place to make the pollutants less harmful. A catalytic converter is basically a long screen made of either ceramic or a metal foil.