Aiming ntawm qhov cuam tshuam ntawm cov khoom sib txawv ntawm siab alumina refractory cib ntawm kev ua haujlwm

Nrog rau qhov nce ntawm Al2O3 cov ntsiab lus nyob rau hauv siab alumina refractory bricks, tus nqi ntawm mullite thiab corundum Cheebtsam kuj nce, thiab cov iav theem txo correspondingly, thiab hluav taws kub kuj thiab ceev ntawm high alumina refractory bricks kuj nce. Thaum cov ntsiab lus Al2O3 nyob rau hauv lub siab alumina cib yog tsawg dua 71.8%, tsuas yog high-temperature ruaj khov siv lead ua theem nyob rau hauv lub siab alumina refractory cib yog mullite, thiab nws nce nrog rau qhov nce ntawm Al2O3 cov ntsiab lus. Rau high-alumina refractory cib nrog rau Al2O3 cov ntsiab lus ntawm ntau tshaj 71.8%, qhov kub-kub ruaj khov siv lead ua theem yog mullite thiab corundum. Raws li cov ntsiab lus ntawm 71.8% nce, tus nqi ntawm corundum nce thiab mullite txo qis, thiab cov khoom kub kub ntawm high-alumina refractory cib raug txhim kho raws li.

Qhov hluav taws kub kub ntawm siab alumina refractory cib nyob ntawm qhov sinterability ntawm alumina raw cov ntaub ntawv. Thaum siv cov qib tshwj xeeb thiab kuv qib bauxite clinker (qhov ntom ntom ≥ 2.80g / cm3), cov khoom siv raw muaj cov qauv zoo ib yam thiab cov ntsiab lus tsis huv siab, uas ua rau lub cev ntsuab yooj yim rau sinter, tab sis qhov kub ntawm sintering yog nqaim, uas yog yooj yim ua rau overburned los yog Underburned. Thaum siv Class II bauxite clinker (qhov ntom ntom ≥2.55g / cm3), vim tias qhov nthuav dav thiab xoob nyhuv tshwm sim los ntawm lwm yam mulliteization, lub cev ntsuab tsis yooj yim rau sinter, yog li qhov kub hnyiab me ntsis. Thaum siv Class III bauxite clinker (qhov ntom ntom ≥2.45g / cm3), cov qauv yog ntom, cov ntsiab lus ntawm Al2O3 yog qis, thiab qhov hluav taws kub kub qis dua, feem ntau me ntsis siab dua qhov kub kub ntawm clinker av nplaum cib los ntawm 30 ~ 50. ℃. High-alumina refractory cib raug rho tawm haujlwm hauv cov nplaim hluav taws oxidizing.