Kodi gawo la Ceramic ndi chiyani?

Ma ceramic substrates akhala pakati pa ntchito zowongolera mpweya woipa woyenda kuyambira pachiyambi cha ukadaulo kumayambiriro kwa zaka za m'ma 1970 pamene Corning adapanga cordierite yopangidwa ndi die for ceramic honeycomb extrusion. Ma ceramic substrates a ceramic ali ndi njira zambiri zazing'ono, zofanana zomwe zimatsegulidwa mbali zonse ziwiri, zomwe zimathandiza kuti utsi wa galimoto uzidutsa. Njirazi zimapereka malo akuluakulu mkati kuti zithandizire ntchito yothandiza. Pamene ceramic ili pafupifupi kukula kwa chidebe cha soda, malo ake amkati (kuphatikizapo chovala chotsukira pamwamba) amakhala ndi malo ofanana ndi bwalo la mpira waku America.

Ma substrate awa amatha kupirira kutentha kwambiri >1100°C (2000°F) ndipo amalimbana kwambiri ndi kutentha (kotero kuti amapulumuka kutentha mwachangu m'mawa wozizira). Ma substrate awa amatha kusinthasintha ndipo amatha kulandira mitundu yosiyanasiyana ya ma catalyst kuti athetse kuipitsidwa ndi mafuta ochokera ku petulo, dizilo, gasi wachilengedwe, haidrojeni ndi mafuta ena.

Gawo lomalizidwalo limakutidwa ndi zinthu zoyenera zosinthira zomwe zimasanduka labu yaying'ono ya chemistry ndipo zimathandiza kuti utsi wambiri ugwiritsidwe ntchito bwino. Pa kutentha kwakukulu kwa injini yogwira ntchito, mpweya wotulutsa utsi monga nitrogen oxides ndi carbon monoxide zimakumana ndi chothandizira ndipo zimasanduka nayitrogeni ndi madzi osavulaza komanso carbon dioxide yosavulaza kwenikweni.

Ma substrate oyamba a ceramic ogulitsa anali ochepa kwambiri (pafupifupi maselo 200/mu 2) okhala ndi makoma okhuthala (pafupifupi 12 mil kapena 0.012” kapena 0.3 mm) okhala ndi voliyumu ya substrate pafupifupi kanayi kuposa kusuntha kwa injini (mwachitsanzo, voliyumu ya silinda ya injini). Pamene ukadaulo wa zinthu ndi kukonza zinthu unapita patsogolo, kuchuluka kwa maselo, makoma opyapyala, ndi ma porosity apamwamba zinakhala zotheka.

Mu injini ya petulo kapena hybrid sedan ya masiku ano, pali ma substrate awiri kapena atatu omwe amagwira ntchito kuti akwaniritse miyezo yokhwima ya mpweya wochokera ku US. Pa injini, substrate (ma substrate) ogwirizana kwambiri okhala ndi kuchuluka kwa maselo ambiri amapereka malo ambiri pamwamba kuti chothandizira chigwire ntchito yoyambira ya mpweya. Pansi pa nthaka nthawi zambiri pamakhala substrate yocheperako ya maselo kuti ithandize kuyeretsa mpweya womaliza.