Ama-substrate e-ceramic abelokhu eyinhloko yokulawulwa kokukhishwa kwegesi okuhambayo kusukela ekuqaleni kobuchwepheshe ekuqaleni kwawo-1970 lapho uCorning ethuthukisa i-cordierite yokwenziwa kanye ne-die for ceramic honeycomb extrusion. Ama-substrate e-honeycomb agcwele izinkulungwane zeziteshi ezincane, ezifanayo ezivulekile emaphethelweni womabili, okuvumela ukuphuma komoya emotweni ukuthi kudlule. Lezi ziteshi zinikeza indawo enkulu yangaphakathi ukusekela umsebenzi wokuvuselela. Uma i-substrate icishe ibe usayizi wethini le-soda, ubuso bayo bangaphakathi (kufaka phakathi ijazi lokugeza eliphezulu) bunendawo engaphezulu ecishe ibe usayizi wenkundla yebhola lezinyawo yaseMelika.
Lezi zingxenyana zingamelana namazinga okushisa aphezulu >1100°C (2000°F) futhi zimelana kakhulu nokushaqeka kokushisa (ukuze zisinde ekushiseni okusheshayo ekuseni okubandayo). Lezi zingxenyana ziyakwazi ukuzivumelanisa nezimo futhi zingamukela izinhlobo eziningi ze-catalyst formulations ukuze kuqedwe ukungcola okuvela kuphethiloli, udizili, igesi yemvelo, i-hydrogen kanye nezinye izinto zokubasa.
I-substrate ephelele imbozwe ngenhlanganisela yezinto ezifanele zokulungisa eziguqula ibe ilebhu encane yamakhemikhali futhi ivumela ukuthi umthamo omkhulu wokukhipha ugesi uphathwe kahle. Emazingeni okushisa aphezulu enjini esebenzayo, amagesi okukhipha ugesi afana ne-nitrogen oxides kanye ne-carbon monoxide ahlangana ne-catalyst futhi aguqulwa abe yi-nitrogen namanzi angenangozi kanye ne-carbon dioxide engenangozi kakhulu.
Izingxenye zokuqala ze-ceramic zezentengiselwano zazinobuningi obuphansi bamaseli (cishe amaseli angu-200/in2) enezindonga ezijiyile (cishe ama-mil angu-12 noma ama-0.012” noma ama-0.3 mm) enobukhulu obuphindwe kane kunobokuhamba kwenjini (okungukuthi, ubukhulu besilinda senjini). Njengoba ubuchwepheshe bezinto zokwakha kanye nokucubungula buqhubeka, ubuningi bamaseli obuphezulu, izindonga ezincane, kanye nezindawo ezimboziwe eziphezulu kwaba nokwenzeka.
Ku-US gasoline noma i-hybrid sedan yanamuhla, kunezinhlobo ezimbili noma ezintathu ze-substrate ezisebenzayo ukuhlangabezana nezindinganiso eziqinile zokukhishwa kwamagesi e-US. Kusukela enjinini, i-substrate(s) esondelene kakhulu enobuningi bamaseli aphezulu inikeza indawo enkulu yobuso ukuvumela i-catalyst ukuthi yenze ukuguqulwa kokuqala kwamagesi. Endaweni engaphansi kwephansi ngokuvamile kune-substrate ephansi yobuningi bamaseli ukusiza ukuhlanza ukukhishwa kokugcina.
Isikhathi sokuthunyelwe: Juni-12-2026