Al2O 3 thiab MgO yog ntxiv rau lub hauv paus ntawm SiO 2-cao-na2o ternary system, uas txawv ntawm phaj iav hauv cov ntsiab lus ntawm Al2O 3 yog siab dua thiab cov ntsiab lus ntawm CaO yog siab dua, thaum cov ntsiab lus ntawm MgO yog qis dua.
Tsis muaj teeb meem dab tsi ntawm cov khoom siv molding, txawm tias nws yog lub raj mis npias, lub raj mis cawv, cov kaus poom tuaj yeem siv cov khoom xyaw no, tsuas yog yuav tsum tau ua qee qhov kev nplua raws li qhov tseeb.Nws muaj pes tsawg leeg (feem feem ntau) yog: SiO 27% ~ 73%, A12O 32% ~ 5%, CaO 7.5% ~ 9.5%, MgO 1.5% ~ 3%, R2O 13.5% ~ 14.5%.
Cov khoom xyaw no yog tus cwj pwm los ntawm cov ntsiab lus nruab nrab ntawm txhuas, kev siv Al2O3 uas muaj silica xuab zeb, los yog kev taw qhia ntawm alkali hlau oxides nrog feldspar kom txuag tau nqi.Tus nqi ntawm CaO + MgO yog qhov siab, thiab lub hardening ceev kuj ceev, yog li kom hloov mus rau lub tshuab siab dua, ib feem ntawm MgO yog siv los ntawm CaO los tiv thaiv cov iav los ntawm crystallizing nyob rau hauv lub qhov dej ntws, pub. passage thiab pub tshuab.Nruab nrab Al2O3 tuaj yeem txhim kho lub zog txhua yam thiab tshuaj lom neeg ruaj khov ntawm iav.
Post lub sij hawm: May-26-2020