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Kapangidwe kabwino kwambiri ndi kagwiritsidwe ntchito ka ma cenospheres.

Makhalidwe abwino ndi kugwiritsa ntchito malo ozungulira: kukana kwambiri. Zigawo zazikulu za mankhwala a malo ozungulira Ndi ma oxide a silicon ndi aluminiyamu, omwe silicon dioxide ndi pafupifupi 50-65%, ndipo aluminiyamu oxide ndi pafupifupi 25-35%. Chifukwa chakuti kutentha kwa silica kumafika madigiri 1725 Celsius, kutentha kwa aluminiyamu oxide ndi madigiri 2050 Celsius, onse awiri ndi okwera. zinthu zotsutsaChifukwa chake, ma cenospheres ali ndi mphamvu yolimba kwambiri, nthawi zambiri amafika madigiri Celsius 1600-1700, zomwe zimapangitsa kuti akhale chinthu chabwino kwambiri cholimba kwambiri. Chopepuka komanso choteteza kutentha. Khoma la ma cenospheres ndi lopyapyala komanso lopanda kanthu, ndipo dzenjelo ndi lopanda mpweya, lokhala ndi mpweya wochepa kwambiri (N2, H2 ndi CO2, ndi zina zotero), ndipo kutentha kwake kumakhala kocheperako komanso kochepa kwambiri. Chifukwa chake, ma cenospheres si opepuka kokha (kulemera kwakukulu 250-450 kg/m3), komanso ndi abwino kwambiri pakuteteza kutentha (kutulutsa kutentha kutentha kutentha kutentha kwa chipinda 0.08-0.1), zomwe zimawapangitsa kuti awonetse luso lawo pantchito yoteteza kutentha. Kulimba kwambiri komanso mphamvu. Popeza ma cenospheres ndi matupi olimba agalasi opangidwa ndi magawo a mchere wa silicon aluminum oxide (quartz ndi mullite), kuuma kwawo kumatha kufika pamlingo wa Mohs 6-7, mphamvu ya kupanikizika kwa static imakhala yokwera kufika pa 70-140MPa, ndipo kuchuluka kwenikweni ndi 2.10-2.20 g/cm3. kofanana ndi miyala. Chifukwa chake, ma cenospheres ali ndi mphamvu zambiri. Kawirikawiri, zinthu zopepuka zokhala ndi mabowo kapena zopanda kanthu monga perlite, zeolite, diatomite, pumice, vermiculite yokulirapo, ndi zina zotero zimakhala ndi kuuma kochepa komanso mphamvu, ndipo zinthu zotenthetsera kutentha kapena zinthu zopepuka zotsutsana nazo zopangidwa nazo zimakhala ndi mphamvu zochepa zovuta. Zofooka zawo ndi zabwino za ma cenospheres, kotero ma cenospheres ali ndi zabwino zambiri komanso ntchito zambiri. Kukula kwa tinthu tating'onoting'ono ndi malo akuluakulu apadera. Kukula kwa tinthu tating'onoting'ono ta mikanda yopangidwa mwachilengedwe ndi 1-250 microns. Malo enieni ndi 300-360cm2/g, omwe ndi ofanana ndi simenti. Chifukwa chake, ma cenospheres angagwiritsidwe ntchito mwachindunji popanda kugaya. Kusalala kwake kumatha kukwaniritsa zosowa za zinthu zosiyanasiyana. Zipangizo zina zochepetsera kutentha nthawi zambiri zimakhala ndi tinthu tating'onoting'ono tating'onoting'ono (monga perlite, ndi zina zotero). Ngati zaphwanyidwa, mphamvu yake idzawonjezeka kwambiri, ndipo kutentha kwake kudzachepa kwambiri. Pachifukwa ichi, ma cenospheres ali ndi ubwino. Kuteteza bwino magetsi. Ma cenospheres, pambuyo poti mikanda ya maginito yasankhidwa, ndi zinthu zabwino kwambiri zotetezera kutentha ndipo sizimayendetsa mpweya. Kawirikawiri, kukana kwa ma insulators kumachepa ndi kutentha komwe kukukwera, koma kukana kwa ma cenospheres kumawonjezeka ndi kutentha komwe kukukwera. Ubwino uwu supezeka ndi zipangizo zina zotetezera kutentha. Chifukwa chake, imatha kupanga zinthu zotetezera kutentha pansi pa kutentha kwambiri.
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Nthawi yotumizira: Epulo-29-2022