Chidhinha chine alumina yakawanda chinoshanda zvakanyanya uye chine alumina inodarika 48%. Chinogadzirwa nebauxite yepamusoro-soro pakupisa kwakanyanya, chinopfuura zvidhinha zvevhu zvakajairwa mukudzivirira kupisa kwakanyanya, kugadzikana kwechimiro uye kuramba ngura. Sechinhu chakakosha chejira remaovheni emaindasitiri, chinoshandiswa zvakanyanya muindasitiri yesimbi, simende, makemikari uye magetsi, chichishanda semhinduro yakavimbika yekudzivirira michina yemaindasitiri inopisa zvakanyanya.
Zvimiro Zvikuru
Chidhinha ichi chisingachinji chinoshanda zvakanaka munzvimbo dzakaoma dzemaindasitiri, zvichigadzirisa zvinobudirira matambudziko akajairika emuchina wechoto akadai sekushanduka-shanduka kwevhu, kukweshwa kwevhu uye hupenyu hupfupi hwebasa.
Kusasimba kwe1750°C kusvika 1800°C. Mhando dzemhando yepamusoro dzinotsungirira tembiricha dziri pamusoro pe1800°C, dzichichengetedza mashandiro akasimba pasina kupfava kana kunyunguduka panguva yekushanda kwenguva refu pakupisa kwakanyanya.
Tembiricha inonyorovesa mutoro ye1420°C–1500°C inodzivirira kushanduka kwesimba rekupisa kwakanyanya, ichichengetedza kusimba kwemuviri wechoto uye ichideredza njodzi yekukuvadzwa kwemidziyo.
Chimiro chemullite chakagadziriswa chinodzivirira kukurwa kwevhu kubva mutsvina yakanyungudutswa, mvura yesimbi uye gasi rinopisa rinoparadza, zvichidzivirira kukuvara kwemukati meimba uye kuwedzera hupenyu hwebasa rechoto.
Inotsungirira kuchinja-chinja kwekushisa nguva nenguva pasina kutsemuka kana kukweshwa. Simba rayo guru rekudzvanya rinoita kuti ikwanise kutsungirira kukweshwa kwezvinhu kwenguva refu uye kukweshwa kwemuchina.
Kupisa kushoma kunoderedza kurasikirwa nekupisa muchoto uye kunovandudza mashandiro esimba. Kunoderedza nguva yekugadzirisa nekutsiva, zvichideredza mari yekushanda kwenguva refu.
Zvikumbiro Zvikuru zveMaindasitiri
Zvidhinha izvi zvinowanikwa mumhando dzakasiyana (48%–80% Al₂O₃), zvinokwana mamiriro akasiyana-siyana ekupisa kwakanyanya. Zvakanakira maovheni esimbi, madhishi esimbi uye maovheni ekupisa muindasitiri yesimbi. Zvinoshandawo sejira rakasimba remaovheni esimbi anotenderera, maovheni e lime, maovheni emaindasitiri, maovheni e chemical reaction, maovheni egirazi ne ceramic.
Sei Uchifanira Kusarudza Isu
Tinopa zvidhinha zve alumina refu zvinoramba kushanda muchimiro chakajairika uye chakagadzirwa, kusanganisira mhando dzakareruka nedzinorema. Zvakagadzirwa ne bauxite yakachena kwazvo kuburikidza nemaitiro akaomarara ekunyungudutsa, zvigadzirwa zvedu zvine mhando yakagadzikana, saizi chaiyo uye hupenyu hurefu hwebasa. Tinopa mhinduro dzakagadziriswa, nhungamiro yehunyanzvi uye sevhisi yakazara mushure mekutengesa kune vatengi vepasi rese.
Tibatei kuti muwane mazano ehunyanzvi uye mutengo wezvidhinha zvemhando yepamusoro zve alumina refractory!
Nguva yekutumira: Chivabvu-22-2026
