Ii-substrates zeseramikhi bezisoloko ziphambili kulawulo lokukhutshwa komoya ohambayo ukusukela oko kwaqala ubuchwepheshe ekuqaleni kweminyaka yoo-1970 xa iCorning yaphuhlisa i-cordierite yokwenziwa kunye ne-die for ceramic honeycomb extrusion. Ii-substrates ze-honeycomb zizaliswe ngamawaka emijelo emincinci, ehambelanayo evulekileyo kwicala ngalinye, evumela ukuba umbane wesithuthi udlule. Ezi mijelo zibonelela ngendawo enkulu yangaphakathi yokuxhasa umsebenzi we-catalytic. Xa i-substrate ilingana ne-soda can, umphezulu wayo wangaphakathi (kuquka ne-washcoat ephezulu) unendawo engaphezulu ngobukhulu bebala lebhola ekhatywayo laseMelika.
Ezi substrates zinokumelana namaqondo obushushu aphezulu >1100°C (2000°F) kwaye ziyakwazi ukumelana nobushushu obuphezulu kakhulu (ukuze zikwazi ukumelana nobushushu obukhawulezayo kusasa xa kubanda). Ezi substrates ziyakwazi ukuguquguquka kwaye zinokumkela iintlobo ngeentlobo zee-catalyst formulations ukuphelisa ungcoliseko oluvela kwipetroli, idizili, igesi yendalo, ihydrogen kunye nezinye izinto zokubasa.
I-substrate egqityiweyo igqunywe ngendibaniselwano yezinto ezifanelekileyo zokutsala amandla eziguqula ibe yilabhoratri encinci yekhemistri kwaye ivumela ukuba umthamo omkhulu wokukhupha umoya uphathwe ngokufanelekileyo. Kumaqondo obushushu aphezulu enjini esebenzayo, iigesi zokukhupha umoya ezifana ne-nitrogen oxides kunye ne-carbon monoxide zidibana ne-catalyst kwaye ziguqulwa zibe yi-nitrogen namanzi angenabungozi kwaye zibe yi-carbon dioxide engenabungozi kangako.
Ii-substrates zokuqala ze-ceramic zorhwebo zazinoxinano oluphantsi lweeseli (malunga neeseli ezingama-200/kwi-2) ezineendonga ezityebileyo (malunga ne-12 mil okanye i-0.012” okanye i-0.3 mm) ezinomthamo we-substrate ophindwe kane kunowokufuduka kwenjini (oko kukuthi, umthamo wesilinda yenjini). Njengoko iteknoloji yezinto zokwakha kunye nokucubungula iqhubela phambili, uxinano oluphezulu lweeseli, iindonga ezincinci, kunye ne-porosities ephezulu yaba nokwenzeka.
Kwi-sedan eqhelekileyo yanamhlanje yepetroli okanye i-hybrid sedan, kukho ii-substrates ezimbini okanye ezintathu ezisebenzayo ukuhlangabezana nemigangatho engqongqo yokukhupha umoya wegesi e-US. Ukusuka nje kwinjini, ii-substrate ezidityanisiweyo ezine-cell density ephezulu zibonelela ngendawo eninzi yomphezulu ukuvumela i-catalyst ukuba yenze ukuguqulwa kokuqala kwegesi. Kwindawo engaphantsi komgangatho ngokubanzi kukho i-substrate ephantsi yoxinano lweseli ukunceda ukucoca ukukhutshwa kokugqibela.
Ixesha lokuthumela: Juni-12-2026