Nthawi zambiri, njerwa zazikulu za aluminiyamu siziyenera kugwiritsidwa ntchito mung'anjo yamchere yamchere.Chifukwa alkaline ndi acidic sing'anga imakhalanso ndi klorini, imalowa muzitsulo zakuya za njerwa zapamwamba za alumina mu mawonekedwe a gradient, zomwe zingapangitse njerwa yotsutsa kugwa.
Njerwa yapamwamba ya aluminiyamu pambuyo pa kukokoloka kwa mpweya wamchere ndi ming'alu yopingasa.Kukokolokako kumapangidwa ndi imvi yamafuta, mpweya woyaka, ndi zida zamchere muzinthu zina.Zigawozi zimachita ndi gawo lagalasi ndi mwala wa mullite mu njerwa yayikulu ya aluminiyamu.
Njerwa zapamwamba za aluminiyamu zomwe zili ndi corrod alkaline zidzawonekera pamwamba.Kuwotcha kwa gasi kumapangitsanso lure nitrate, kusungunuka kwa njerwa za aluminiyamu;momwe madzi oundana opangidwa ndi madzi oundana amachitira adzapanga gawo latsopano lovuta.Ma nitriles opanda madzi amwayi akakumana ndi vagram yopangidwa, anti -vaporization reaction imachitika, kupangitsa njerwa yayikulu ya aluminiyamu kusweka kapena kugwa.Kuphatikiza apo, dzimbiri zamafuta ndizowopsa kwambiri pakuwonongeka kwa njerwa.Chifukwa cha kukokoloka kwa Fang quartz, Skywine, ndi quartz crystal silica.Kugwiritsa ntchito matailosi amoto kudzakhala koopsa kuposa Zakudyazi ozizira.
Kuwonongeka kwa njerwa za silicon dioxide ndizovuta kwambiri.The silika ndi kusungunuka mkulu zotayidwa njerwa - zamadzimadzi gawo.Kusungunuka kwa nitrate ndi miyala ya silicon yotsika kwambiri imapanga gawo lalikulu lamadzimadzi.The apamwamba silika zili mu njerwa, kuchuluka kwa madzi gawo.Kuchuluka kwamadzimadzi kumasokoneza njerwa zazikulu za aluminiyamu.Silicon ya silicon imawonongekanso ndi njerwa.Chifukwa silika yaulere imadyedwa, gawo la Mo Lai Shi lidzawonongeka.Pambuyo poyankha kwa lickle nitrate ndi mwala wa mullite zingayambitse kukulitsa kowononga kwa njerwa yayikulu ya aluminiyamu.
Njerwa zapamwamba za aluminiyamu zimatsutsana kwambiri ndi kutentha kwakukulu ndi kuphulika.Amagwiritsidwa ntchito kwambiri pomanga ng'anjo zosiyanasiyana zamafakitale, monga ng'anjo zophulitsa moto, ng'anjo za mpweya wotentha, ndi ng'anjo zozungulira.Komabe, mu ng'anjo yamchere yamchere, kugwiritsa ntchito njerwa zapamwamba za alumina ndizochepa.
Zomwe zimapangidwa ndi njerwa zapamwamba za alumina zimawapangitsa kukana zotsatira za malo acidic.Komabe, m'malo okhala ndi zamchere kwambiri, monga ng'anjo za simenti kapena ng'anjo zamagalasi, njerwa zapamwamba za aluminiyamu zimatha kuchitapo kanthu ndi oxides zachitsulo za alkali, zomwe zimapangitsa njerwa kung'ambika ndikusweka.Zomwe zimachitika pakati pa njerwa za Al2O3 ndi zitsulo zazitsulo za alkali nthawi zambiri zimapanga mapangidwe a alkali aluminosilicate gel, omwe ali ndi malo otsika osungunuka ndipo amatha kuyenda mosavuta m'ming'alu.
Pofuna kuthetsa vutoli, njira zingapo zakhala zikugwiritsidwa ntchito pofuna kukonza kukana kwa njerwa zapamwamba za aluminiyamu kumalo amchere.Njira imodzi ndiyo kuwonjezera magnesia kapena spinel ku njerwa zapamwamba za alumina.Magnesia kapena spinel adzachitapo kanthu ndi zitsulo zamchere zamchere kuti apange magawo okhazikika a spinel, omwe angapangitse kukana kwa njerwa za Al2O3 kusweka chifukwa cha alkali reaction.Njira ina ndiyo kugwiritsa ntchito chophimba chotetezera pamwamba pa njerwa zapamwamba za alumina kuti muteteze kukhudzana kwachindunji ndi malo amchere.
Mwachidule, njerwa zapamwamba za aluminiyamu zimakhala ndi mphamvu zochepa zomwe zimagwiritsidwa ntchito mu ng'anjo yamchere yamchere.Kuti muwonjezere kukana kwa njerwa za Al2O3 m'malo amchere, ndikofunikira kuwonjezera mchere kapena zokutira kuti mupewe zotsatira zoyipa ndi ma oxide azitsulo zamchere.Ndikofunikira kusankha zida zoyenera zopangira ng'anjo ya mafakitale kuti muchepetse zoopsa zomwe zingachitike ndikupulumutsa ndalama.
Nthawi yotumiza: May-19-2023
