Drift bead ndi mtundu wa mpira womwe umayandama pamadzi.Ndi yotuwa yotuwa, yokhala ndi makoma opyapyala komanso opanda dzenje, komanso yolemera kwambiri.Kulemera kwa unit ndi 720kg/m3 (kulemera), 418.8kg/m3 (kuwala), ndi kukula kwa tinthu pafupifupi 0.1mm.Pamwambapo ndi otsekedwa komanso osalala, otsika matenthedwe matenthedwe komanso kukana moto kwa ≥ 1610 ℃.Ndi chinthu chabwino kwambiri chosungira kutentha, chomwe chimagwiritsidwa ntchito kwambiri popanga ma castables opepuka komanso kubowola mafuta.Kapangidwe kakemidwe ka mkanda woyandama ndi silicon dioxide ndi aluminium oxide.Ili ndi mawonekedwe a tinthu tating'onoting'ono, tobowo, kulemera kopepuka, mphamvu yayikulu, kukana kuvala, kukana kutentha kwambiri, kutchinjiriza kwamafuta, kutchinjiriza ndi retardancy yamoto.Ndi imodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pamakampani olimbana ndi moto.

Drift bead ndi mtundu wa mpira womwe umayandama pamadzi.Ndi yotuwa yotuwa, yokhala ndi makoma opyapyala komanso opanda dzenje, komanso yolemera kwambiri.Kulemera kwa unit ndi 720kg/m3 (kulemera), 418.8kg/m3 (kuwala), ndi kukula kwa tinthu pafupifupi 0.1mm.Pamwambapo ndi otsekedwa komanso osalala, otsika matenthedwe matenthedwe komanso kukana moto kwa ≥ 1610 ℃.Ndi chinthu chabwino kwambiri chosungira kutentha, chomwe chimagwiritsidwa ntchito kwambiri popanga ma castables opepuka komanso kubowola mafuta.Kapangidwe kakemidwe ka mkanda woyandama ndi silicon dioxide ndi aluminium oxide.Ili ndi mawonekedwe a tinthu tating'onoting'ono, tobowo, kulemera kopepuka, mphamvu yayikulu, kukana kuvala, kukana kutentha kwambiri, kutchinjiriza kwamafuta, kutchinjiriza ndi retardancy yamoto.Ndi imodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pamakampani olimbana ndi moto.

Kuchita bwino kwambiri komanso kugwiritsa ntchito mikanda yoyandama

Kukana moto wapamwamba.Zigawo zazikulu zamakina a mikanda yoyandama ndi ma oxide a silicon ndi aluminiyamu, okhala ndi silicon dioxide pafupifupi 50-65% ndi aluminium trioxide pafupifupi 25-35%.Chifukwa malo osungunuka a silicon dioxide ndi okwera kufika madigiri 1725 Celsius, ndipo malo osungunuka a aluminium oxide ndi 2050 digiri Celsius, onsewa ndi zinthu zokanira kwambiri.Chifukwa chake, mikanda yoyandama imakhala ndi kukana kwambiri kwa moto, nthawi zambiri imafikira madigiri 1600-1700 Celsius, zomwe zimawapangitsa kukhala zida zapamwamba kwambiri zokanira.Opepuka, insulated ndi insulated.Khoma loyandama la mikanda ndi lopyapyala komanso lopanda kanthu, lokhala ndi mpweya wocheperako mkati mwake komanso mpweya wochepa kwambiri (N2, H2, CO2, ndi zina), zomwe zimapangitsa kutentha pang'onopang'ono komanso kochepa.Chifukwa chake mikanda yoyandama singopepuka (yokhala ndi 250-450 kilogalamu/m3), komanso imakhala ndi kutchinjiriza kwabwino kwambiri komanso kutsekemera kwamafuta (ndi matenthedwe a 0.08-0.1 kutentha kwa firiji), komwe kumayala maziko awo. kuthekera kwakukulu m'munda wa zinthu zopepuka zotchinjiriza.Kuuma kwakukulu ndi mphamvu.Monga mkanda woyandama ndi galasi lolimba lopangidwa ndi silicon aluminium Oxide mineral phase (quartz ndi mullite), kuuma kwake kumatha kufika ku Mohs 6-7, mphamvu ya static pressure imatha kufika 70-140MPa, ndipo kachulukidwe ake enieni ndi 2.10-2.20g / cm3 , yomwe ili yofanana ndi thanthwe.Choncho, mikanda yoyandama imakhala ndi mphamvu zambiri.Nthawi zambiri, zinthu zopepuka za porous kapena dzenje monga Perlite, thanthwe lowira, diatomite, pumice, vermiculite yokulitsidwa, ndi zina zambiri ndizosalimba komanso mphamvu.Zopangira zotenthetsera zotentha kapena zowumitsa zopepuka zopangidwa ndi iwo zimakhala ndi vuto lamphamvu zopanda mphamvu.Kufooka kwawo ndiko ndendende mphamvu ya mikanda yoyandama, yomwe imawapatsa mwayi wampikisano komanso kugwiritsa ntchito mosiyanasiyana.Fine tinthu kukula ndi lalikulu enieni pamwamba m'dera.Kukula kwachilengedwe kwa mikanda yoyandama kumayambira 1 mpaka 250 microns.Malo enieni ndi 300-360cm2 / g, omwe ndi ofanana ndi simenti.Choncho, mikanda yoyandama sifunikira kugaya ndipo ingagwiritsidwe ntchito mwachindunji.The fineness akhoza kukwaniritsa zosowa zosiyanasiyana mankhwala.Zida zina zowotchera zopepuka nthawi zambiri zimakhala zazikulu (monga Perlite).Ngati akupera, mphamvuyo idzawonjezeka kwambiri ndipo kutentha kwa kutentha kudzachepetsedwa kwambiri.Pachifukwa ichi, mikanda yoyandama ili ndi ubwino wake.Kusungunula kwabwino kwamagetsi.Mkanda woyandama mutasankha mkanda wa maginito ndi chinthu chabwino kwambiri chotchingira chomwe sichimayendetsa magetsi.Kukaniza kwa ma insulators ambiri kumachepa ndi kutentha, pamene kukana kwa mikanda yoyandama kumawonjezeka ndi kutentha kwakukulu.Ubwinowu sukhala ndi zida zina zotchingira.Chifukwa chake, imatha kugwiritsidwa ntchito kupanga zinthu zotchinjiriza pansi pa kutentha kwambiri.