Kugwiritsa Ntchito Ufa wa Alumina Mosiyanasiyana Mumakampani Ogulitsa Magalimoto
Lowani mgalimoto iliyonse yamakono ndipo mupezaufa wa alumina ikugwira ntchito zosiyanasiyana mwakachetechete, koma kawirikawiri sizimawonedwa ndi ogula. Lero, tiyeni tikweze chivundikirocho ndikuwona momwe ufa woyera uwu umathandizira kwambiri pakuyenda kwa "thupi lonse" la galimotoyo.
Ⅰ. "Mafupa Olimba" a Ma Brake Pads
“Mabuleki ofooka? Mwina zida zokangana sizolimba mokwanira!” katswiri wa fakitale ya mabuleki anadandaula pamene ankayesa mabuleki. Mphamvu yake ndi yodabwitsa: kuwonjezera 3%-5% yokha ku zida zokangana kungapangitse kuti pamwamba pa mabuleki pakhale kuuma kwambiri. Zili ngati chida chaching'ono, chomwe chimachiletsa kuti chisawonongeke kapena kusweka chifukwa cha kukangana kwa kutentha kwambiri. Deta yochokera ku Hangzhou Jikang New Materials ikuwonetsa kuti kuwonjezera kwa chowonjezerachi kumawonjezera kukana kwa mabuleki pad ndi kupitirira 15%, zomwe zimapangitsa kuti ikhale chida chosungira ndalama kwa ma taxi omwe amayamba ndi kuyima pafupipafupi.
Chabwino kwambiri ndi kulimba kwake - dzimbiri la asidi ndi alkali? Palibe vuto! Kutentha kwa 800°C? Ngakhale! Mavuto a dzimbiri ndi kulira kwa ma brake pads achikhalidwe amathetsedwa mosavuta ndi njira ya ceramic yowonjezeredwa ndi nano-alumina.
II. "Nyumba ya Uchi" Yoyeretsera Mpweya Wotulutsa Utsi
Pa fakitale ya catalyst ku Beijing, antchito amaika slurry yokoma pa chonyamulira cha ceramic chooneka ngati uchi. Pakati pa slurry iyi ndi gamma-phase nano-alumina, yokhala ndi malo okwana 130-200 m²/g. Izi zikutanthauza kuti galamu imodzi ya chinthuchi, yofalikira theka la bwalo la basketball, ndi yofanana ndi kukula kwake katatu.
Utsi wa galimoto ukadutsa mu nano-coatings izi, mamolekyu a carbon monoxide ndi nitrogen oxide amamatiridwa mwamphamvu pamwamba pa ma pore a alumina. Kenako ma catalyst achitsulo chamtengo wapatali amachitapo kanthu, kuwasandutsa mpweya wopanda vuto. Katswiri wa ku Jingcheng New Materials adagwiritsa ntchito fanizo ili: "Alumina ili ngati scaffolding ya nyumba, kulola platinamu ndi palladium, 'VIPs', kukhala molimba mtima ndikugwira ntchito molimbika!"
Kafukufuku wasonyeza kuti ma catalyst amagwiritsa ntchito 10-30nmaluminiyamu Kuonjezera ntchito yotsika kutentha ndi pafupifupi 20%—kutanthauza kuyeretsa mwachangu utsi ngakhale panthawi yozizira, zomwe ndizofunikira kwambiri kuti zikwaniritse miyezo yokhwima ya China VIb emission.
III. "Chigamba Choziziritsira" cha Mapaketi a Mabatire
Kodi eni magalimoto atsopano amaopa chiyani kwambiri? Kutenthedwa kwambiri ndi batire! Mainjiniya ku Hangzhou Jiupeng New Materials adawonetsa chubu cha gel yotenthetsera yofanana ndi mankhwala otsukira mano: "Mukuona kuwala kwa siliva? 60% yake ndi alumina yozungulira!" Ufa wotenthetsera wa alumina wa CY-L15S umagwira ntchito ngati "malo ozizira" a selo ya batire.
Mafuta achikhalidwe a silicone ali ndi mphamvu yoyendetsera kutentha ya 1.5W/mK yokha, pomwe gel yodzazidwa ndi alumina imatha kufika pa 6W/mK. Mayeso pa paketi ya batri kuchokera ku CATL adawonetsa kuti kuwonjezera gawo loyendetsa kutentha la alumina kumachepetsa kusiyana kwa kutentha m'maselo a batri panthawi yochaja mwachangu kuyambira 15°C mpaka mkati mwa 5°C—kusiyana kwa kutentha kukakhala kochepa, ndi komwe kumakhala nthawi yayitali ya batri.
Dongosolo lokulitsa la Tianma New Materials likutsimikiziranso kuti kufunikira kwakukulu: pulojekiti yopanga matani 5,000 a ufa wa alumina wotentha kwambiri pachaka yayamba, cholinga chake ndi msika woziziritsa magalimoto atsopano okhala ndi magetsi atatu.
IV. "Munthu Wolimbitsa Mphamvu" Wopepuka
"Kuchepetsa kulemera popanda kuwononga mphamvu" ndiye chinsinsi cha magalimoto opepuka. Mu chipinda choyesera cha Shanghai Gaoquan Chemical, ufa wa alumina wa 80-160 gauge α-phase umaphatikizidwa mu epoxy resin: "Kuwonjezera kungathe kuchepetsa makulidwe a khoma la bumper bracket ndi 0.5mm, pomwe kumawonjezera mphamvu yake!"
Mfundoyi ikufanana ndi konkriti yolimbikitsidwa:tinthu ta aluminakupanga "chigoba chaching'ono" mkati mwa pulasitiki. Deta yochokera kwa wopanga magalimoto wina imasonyeza kuti kuwonjezera 30% ya alumina ku polyamide mkati mwa hood ya injini kumawonjezera kutentha kwa kutentha kuchokera pa 160°C mpaka 290°C—kupulumutsa moyo wa zigawo zomwe zili pafupi ndi turbocharger.
Mtengo wake ndi wabwino kwambiri: kulimbitsa ulusi wa kaboni ndi wokwera mtengo ngati golide, pomwe zinthu zopangidwa ndi alumina zimawononga gawo limodzi mwa magawo atatu okha.
V. Spark Plug “Chida Chosasinthika”
Chotsani pulagi ya injini ndipo mudzawona kuwala kowala kwa ufa wa alumina wotentha kwambiri pa insulator ya ceramic. Lipoti loyesa kuchokera ku Shanghai Gaoquan Chemical Industry likuwonetsa kuti thupi la ceramic, lopangidwa ndi alumina wa 96% α-phase, limatha kupirira kuphulika kwadzidzidzi pa 1700°C.
"Tinkagwiritsa ntchito zoumba wamba, ndipo zinkasweka ndi kutayikira pambuyo pa makilomita 80,000." Mainjiniya wamkulu wa fakitale yopangira ma spark plug anakonza fakitale yatsopano yopangidwaalumina ceramic thupi lake ndipo anati, “Tsopano, pambuyo pa makilomita 150,000, ngakhale ma electrode atayaka, ceramic imakhalabe yolimba!” Izi zikuchitika chifukwa cha khalidwe la alumina “lolimba”—silikuyandama kutentha kwambiri ndipo lili ndi kutentha kochepa, zomwe zimapangitsa kuti likhale maziko olimba ngati miyala mkati mwa “Flaming Mountain” ya silinda.
VI. "Njira Yatsopano" ya Nkhondo Yamtsogolo
Kupanga zinthu zatsopano za alumina kukupitirirabe. Alumina yosinthika pang'ono yakhala ikugwiritsidwa ntchito kale mu labotale: mabuleki okhala ndi yttrium oxide wochepa amathandiza kuti zinthu zisawonongeke ndi 10%, pomwe zophimba za catalyst zopangidwa ndi cerium oxide zimawonjezera moyo ndi 30%.
Ntchito zina zamakono zili mu kuyendetsa mwanzeru—magalasi a radar a mamilimita amafuna zinthu zomwe zimatumiza mafunde komanso zimachotsa kutentha. Kampani ina ya ku Hangzhou ikuyesa alumina/silicone composite material: dielectric constant yake imakhala yokhazikika pa 3.2, ndipo kutentha kwake kumakhala kowirikiza kasanu kuposa mapulasitiki akale, zomwe zimathandiza kuti radar ione bwino msewu ngakhale kutentha kwa 120°C.
Kuyambira magalimoto achikhalidwe amafuta mpaka magalimoto anzeru amagetsi, unyolo wamtengo wapatali waufa wa aluminaikupitirira kukula. Sizingakhalepo m'mabuku a magalimoto, koma tikagwira chiwongolero, mabuleki onse otetezeka, kutulutsa magetsi moyenera, ndi mpweya uliwonse woyera umatetezedwa mwakachetechete ndi ufa woyera uwu, wobisika kuti usawonekere.
Ndipo chifukwa cha kubuka kwa malo atsopano omenyera nkhondo monga ma solid-state battery thermal insulation pads ndi ma hydrogen fuel cell stack guide plates, njira ya alumina yopita ku "mpikisano wobisika" ikupitilira kukula.