Qhov txawv ntawm qhov ntom ntomsiab alumina bricksthiab zoo tib yam high-alumina bricks yog hais tias lawv muaj tsawg pores, yog ntau ntom, muaj ib tug ntev kev pab cuam lub neej, thiab muaj ntau resistant rau corrosion.
1. Qhov sib txawv ntawm cov txheej txheem ntau lawm
Cov txheej txheem ntau lawm ntawm ntom high-alumina cib yog txawv los ntawm cov zoo tib yam high-alumina cib. Nyob rau hauv cov txheej txheem ntau lawm ntawm high-alumina cib thiab ntom high-alumina cib, cov txheej txheem ntau lawm ntawm kev xaiv, crushing, sib tov, molding, thiab ziab yog tib yam, tab sis cov txheej txheem sib txawv. Ntsis ntau-alumina cib yuav tsum tau ntxiv qee yam kev faib ua feem ntawm pyroxene lossis kyanite dua li kev ua kom rov muaj cib dog dig.
Kyanite muaj qhov nthuav dav coefficient. Nyob rau hauv tus txheej txheem piv ntawm ntxiv high-alumina bricks, qhov luaj li cas ntawm cov hais yog ib qho tseem ceeb heev. Qhov nthuav coefficient ntawm cov khoom loj dua 3 hli yog qhov nyuaj rau tswj. Feem ntau, cov khoom yuav tsum tau tswj xyuas thaum tswj cov nyiaj ntxiv. Thaum ntxiv pyroxene, cov ntsiab lus impurity ntawm pyroxene kuj tswj tau. Txwv tsis pub, qhov saum npoo ntawm cov cib refractory yog ntxhib los yog qhov loj yog qhov nyuaj rau tswj.
2. Qhov sib txawv ntawm cov cib ntom ntom thiab zoo tib yam siab alumina cib thiab lawv qhov chaw
Nti cib thiab zoo tib yam siab-alumina cib thiab lawv cov chaw muaj ntau yam tseem txawv. Ordinary high-alumina bricks yog daj-dawb xim, thaum ntom high-alumina bricks yog me ntsis reddish xim. Qhov no yog vim cov xim ntawm sintered cib tom qab ntxiv coke gemstones txawv, tab sis cov porosity tsawg. High-alumina bricks muaj xim zoo nkauj, tab sis lawv cov porosity kuj siab.
3. Qhov sib txawv hauv tus nqi ntawm cov cib ntau thiab cov qoob loo siab ntau
Cov nqi ntawm cov cib dens thiab ntau-alumina cib kuj sib txawv. Ordinary bricks kuj pheej yig dua li cov cib ntom ntom los ntawm ntau pua lossis ntau txhiab yuan, vim tias qhov ntxiv matrix thiab sintering kub sib txawv, uas ua rau tus nqi nce ntxiv. Feem ntau, high-alumina bricks tsis nthuav ntau thaum raug rho tawm haujlwm. Thaum tswj cov cib dense, hluav taws kub hluav taws kub yog qhov siab.
High-alumina bricks tsis zoo li ntom high-alumina cib nyob rau hauv cov nqe lus ntawm corrosion kuj. Nti cib muaj cov pores qis, thiab lawv cov acid corrosion tsis kam yog ib qho rau ob zaug siab dua li ib txwm high-alumina yog ib qho mus rau ob zaug siab dua li qub Cib.
Yog li ntawd, muaj qhov sib txawv ntawm tuab Alumina cib thiab dog dig refractory alumina Cib, ob leeg tau tsim tawm rau kev xav tau raws li cov kab mob sib txawv. Nyob rau hauv cov nqe lus ntawm kev siv, kev siv high-alumina cib yuav ntau dua li cov cib ntom ntom. Cov cib dense yog cov ntaub ntawv kawg ntawm cov ntsiab lus siab, thiab lub siab tawv nqaij tau muab faib ua cov qib sib txawv raws li qhov siab ntawm pores.
