1. Kuyambira m'zaka za m'ma 1960---1963, wasayansi waku America Schwartzwalder adapanga njira yopangira thovu lachilengedwe. Ma ceramics okhala ndi mabowo adapezeka poika matope a ceramic ndi mafupa a thovu lachilengedwe ndikuchotsa organics kutentha kwambiri, ndikuyika mfundo yayikulu yokonzekera ma ceramics a thovu (omwe ali ndi maziko a alumina), omwe ndi gwero laukadaulo la ma ceramic chips a thovu la alumina.
2. Kuyambira m'zaka za m'ma 1970---1978, Mollard FR ndi Davidson N a ku United States adapangafyuluta ya thovu ya alumina ceramiczomwe zingagwiritsidwe ntchito poyenga zitsulo za aluminiyamu pogwiritsa ntchito njira yopangira thovu lachilengedwe yokhala ndi alumina ndi kaolin ngati zinthu zazikulu zopangira, zomwe zimapangitsa kuti zinthuzo zikhale bwino komanso kuchepetsa kuchuluka kwa zinyalala, zomwe zikusonyeza kuti zitsulo za ceramic za aluminiyamu oxide thovu zidalowa m'mafakitale ndipo zimalimbikitsa kukula kwawo kwakukulu.
3. Mu zaka za m'ma 1980---Europe, United States, Japan ndi mayiko ena adapikisana pa kafukufuku ndi chitukuko kuti apange zosefera za thovu la ceramic zopangidwa ndi zipangizo zosiyanasiyana ndi zofunikira. Kupangaku kudakwezedwa kukhala makina ndi makina odziyimira pawokha, ndipo zinthuzo zidasinthidwa kukhala zotsatizana komanso zokhazikika.
China inayamba kafukufuku wa zoumba za alumina thovu kumayambiriro kwa zaka za m'ma 1980. Harbin University of Technology, Shanghai Institute of Machinery Manufacturing Technology ndi mabungwe ena adatsogolera pakugwira ntchito yoyenera, pang'onopang'ono akuzindikira kudziyimira pawokha kwaukadaulo ndi chitukuko cha mafakitale, ndikuchepetsa kusiyana ndi msika wapadziko lonse lapansi.
Njira yaikulu ndi kuyika thovu lachilengedwe ndipo njira zake ndi izi:
1. Kukonzekera kwa slurry:Sakanizani ufa wa alumina, chomangira, chosungunula, chothandizira kusungunula ndi madzi, sakanizani kuti mupange slurry yofanana yokhala ndi zinthu zolimba komanso zokhuthala zochepa.
2. Kuika m'mimba ndi kuyika matope:Imani chimango cha thovu lachilengedwe chomwe chakonzedwa kale (monga siponji ya polyurethane) mu matope, ndikupangitsa kuti matopewo amamatire pakhoma la dzenje la chimango cha thovu mofanana kudzera mu extrusion ndi gulging kuti muchotse matope ochulukirapo.
3. Kuumitsa ndi kuchiritsa:Ikani thovu lopaka mu uvuni wouma pambuyo pothira matope ndikuliumitsa pa 80 - 120 ℃ kuti guluu likhale lolimba, kuwonjezera mphamvu ya thupi ndikuletsa kusinthika kwa zinthu pambuyo pake.
4. Kuchotsa mafuta ndi kutulutsa guluu:Ikani thupi lobiriwira louma mu uvuni woyatsira moto ndikulitenthetsa pa 400 - 600 ℃ kuti chitoliro cha thovu lachilengedwe ndi chogwirira chiwole kwathunthu ndikusungunuka kuti chipange thupi lobiriwira la alumina lokhala ndi mabowo. Pa siteji iyi, ndikofunikira kuwongolera kuchuluka kwa kutentha kuti thupi lobiriwira lisasweke.
5. Kutentha kwakukulu kotentha:Thupi lobiriwira lomwe lachotsedwa mafuta limatenthedwa kufika pa 1400 - 1600 ℃ kuti liwotchedwe, kotero kuti tinthu ta aluminiyamu oxide timakumana ndi gawo lolimba, timbewu timakula ndikusakanikirana bwino, ndikupanga chigoba cha ceramic champhamvu kwambiri, ndipo pamapeto pake timapeza chitsulo cha ceramic cha aluminiyamu oxide thovu.
6. Kukonza pambuyo:Dulani, pukutani, ndi kuyeretsa malinga ndi zofunikira kuti mupeze zinthu zomalizidwa ndi miyeso ndi kulondola komwe kwatchulidwa.
1. Kuchuluka kwa porosity:Ma porosity nthawi zambiri amakhala pakati pa 60% ndi 90%, ndipo kukula kwa ma pore kumatha kusinthidwa (kuchokera pa ma micrometer makumi ambiri mpaka ma millimeter angapo), ndi ma pores olumikizidwa.
2. Kuchuluka kochepa:Kuchuluka kwa zinthu zambiri ndi 0.3-1.2 g/cm³ yokha, yocheperako kuposa ya zoumba zokhuthala za alumina (pafupifupi 3.95 g/cm³).
3. Kukana kutentha kwambiri:Kutentha kwa nthawi yayitali kumatha kufika 1200-1600 ℃, kwa kanthawi kochepa kumatha kupirira kutentha kwakukulu kwa 1800 ℃, popanda kusungunuka kapena kufewa.
4. Kukana dzimbiri:Kukana kwa asidi ndi alkali (kupatulapo alkaline media yamphamvu), kukana kwa mankhwala osungunulira, kuposa zinthu zokhala ndi mapoko achitsulo.
5. Kusefera kwabwino:Kapangidwe ka ma pore olumikizidwa kangathe kuletsa bwino tinthu tolimba mumadzimadzi omwe ali ndi kukana kochepa kwa madzi.
6. Kutenthetsa kutentha:Kuchuluka kwa porosity kumalepheretsa kutentha ndi convection, zomwe zimapangitsa kuti ikhale chinthu chabwino kwambiri choteteza kutentha kwambiri.
7. Mphamvu yapakati ya makina:Mphamvu yokakamiza ndi mphamvu yopindika zimakwaniritsa zofunikira pakugwiritsa ntchito mafakitale, ndipo zimakhala ndi kulimba kwina, komwe sikuphwanyika mosavuta.
8. Kusinthasintha kwamphamvu:Makulidwe osiyanasiyana, mawonekedwe ndi PPI zimatha kusinthidwa kuti zigwirizane ndi zosowa za mapulogalamu osiyanasiyana.
- Munda wosefera kutentha kwambiri
1. Kusefera kwa kusungunuka kwa zitsulo:Popanga zitsulo zopanda chitsulo monga aluminiyamu, mkuwa, zinki, ndi zina zotero, zimasefa zinthu zosakaniza ndi tinthu tating'onoting'ono tomwe timasungunuka kuti ziwongolere kuyera kwa chopangacho.
2. Kutentha kwambiri kwa mpweya wotulutsa mpweya:amagwiritsidwa ntchito pochotsa fumbi la mpweya wotentha kwambiri m'mafakitale monga kupanga zitsulo, kupanga mankhwala, ndi kutentha zinyalala, kuteteza tinthu ta fumbi ndi mpweya woyeretsa.
- Munda wotenthetsera kutentha
1. Zipinda za uvuni wa mafakitale:chotenthetsera kutentha cha ma uvuni a ceramic, ng'anjo zachitsulo, ndi ma uvuni agalasi kuti achepetse kutaya kutentha ndikusunga mphamvu.
2. Zigawo za mumlengalenga:Monga zinthu zotetezera kutentha kwa zombo za m'mlengalenga ndi mainjini, zimatha kupirira kutentha kwambiri.
- Munda wonyamulira wothandizira
1. Chithandizo cha utsi wa magalimoto:Ikhoza kudzazidwa ndi ma catalyst kuti alowe m'malo mwa zitsulo zina, zomwe zimagwiritsidwa ntchito posintha zinthu zoopsa mu utsi.
2. Kukonza mankhwala:Monga chonyamulira chothandizira pa zochitika za mankhwala, chimawonjezera malo olumikizirana ndi zomwe zimachitika komanso chimathandizira magwiridwe antchito a catalytic.
- Magawo ena
1. Kuchepetsa phokoso ndi kuyamwa kwa mawu:Amagwiritsidwa ntchito ngati zinthu zolandirira mawu m'malo otentha kwambiri komanso owononga, monga zipinda zamainjini ndi zigawo zotetezera mawu m'mafakitale amafakitale.
2. Mankhwala a Biomedicine:Zomera za alumina zoyera kwambiri zitha kugwiritsidwa ntchito ngati malo osungira mafupa, zomwe zimagwirizana bwino ndi zinthu zina.
Alinna Wang
Email: alinna@bestpacking.cn
Foni/WhatsApp: +86 17307992122
Wechat: karol1005
Nthawi yotumizira: Januwale-22-2026