Qhov kub-kub creep ntawm high-alumina bricks yog sawv cev los ntawm creep tus nqi. Piv txwv li, qhov torsional creep tus nqi ntawm thawj- thiab thib ob-theem high-alumina bricks zoo ib yam. Ntawm 1200 degree, qhov nkag siab yog 0.25 ~ 0.29 × 10-5Rh, thaum qib peb qib high-alumina cib yog 3.5 × 10-5rh ntawm tib qhov kub thiab txias, uas yog 10 npaug siab dua li ntawm qib thib ib thiab qib thib ob qib high-alumina cib. Cov theem tsom xam qhia tau hais tias lub iav phasor nyob rau hauv qib thib ib thiab thib ob qib siab alumina cib yog 7 feem pua ~ 9 feem pua, thiab qib peb siab alumina cib yog 20 feem pua. Lub creep tus nqi tsis yog tsuas yog cuam tshuam rau lub iav theem, tab sis kuj rau cov iav theem thiab nws cov muaj pes tsawg leeg. kub viscosity. Ntawm 1200 degree, cov kua theem viscosity ntawm qib peb-qib high-alumina cib tsuas yog ib nrab ntawm cov qib high-alumina cib, thiab 26 feem pua ntawm cov qib high-alumina cib. Yog li ntawd, nyob rau hauv tus cwj pwm creep ntawm qib peb-qib siab alumina bricks, lub iav theem plays lub luag hauj lwm, thiab ntxiv rau cov iav nyhuv nyob rau hauv cov qib thawj thiab thib ob, lub grain ciam creep plays lub luag hauj lwm tseem ceeb. Qhov siab dua qhov sib txuas ncaj qha ntawm cov theem siv lead ua, cov qoob loo ciam teb nkag. pom tseeb dua. Obviously, kev txhim kho lub purity ntawm raw cov ntaub ntawv, hloov cov tshuaj thiab ntxhia muaj pes tsawg leeg ntawm lub matrix, txo tus naj npawb ntawm iav theem thiab kho cov muaj pes tsawg leeg ntawm iav theem yog tus yuam sij rau kev txhim kho kub creep. Nyob rau tib lub sijhawm, nws tuaj yeem txhim kho qhov kub siab ntim stability thiab slag kuj.
Cov khoom ntawm qib peb qib siab alumina cib thiab av nplaum cib zoo sib xws, thiab lawv cov theem siv lead ua tseem ceeb yog mullite thiab iav theem. Vim tias nws qhov kub thiab txias ua tau zoo dua li cov av nplaum cib, cov khoom siv qib thib peb qib high-alumina tuaj yeem siv tau qhov twg cov av nplaum yuav siv tau. Lub ntsiab siv lead ua theem ntawm qib thib ob high-alumina cib yog mullite. Kev ua haujlwm kub ntawm cov khoom siv no yog pom tseeb zoo dua li cov av nplaum cib. Lub ntsiab siv lead ua theem ntawm thawj qib high-alumina cib yog mullite thiab corundum. Vim tias cov tshuaj lom neeg ruaj khov thiab refractoriness ntawm corundum siab dua li cov mullite, qhov siab dua cov ntsiab lus ntawm corundum hauv cov khoom, siab dua qhov kub thiab txias tsis kam thiab corrosion kuj ntawm cov khoom. Txawm li cas los xij, qhov thermal expansion coefficient ntawm corundum yog ntau dua li ntawm mullite, yog li cov ntsiab lus ntawm corundum siab dua, nws qhov thermal shock kuj qis dua.
