Dab tsi yog qhov txawv ntawm siab alumina cib thiab magnesia cib?
High alumina cibs yog aluminium-silicon series khoom, thiabmagnesia cibyog magnesia series khoom. High aluminium bricks tuaj yeem tiv taus alkali tsis muaj zog thiab tsis muaj zog acid cua thiab yog cov khoom nruab nrab; Magnesia refractory bricks tiv taus alkali yaig thiab tsis tuaj yeem siv rau hauv cov huab cua acidic thiab yog alkaline. series ntawm cov khoom.
1. High alumina cib thiab magnesia cib yog ob yam khoom sib txawv
High alumina refractory cib thiab magnesite cib yog ob qho khoom siv refractory nrog cov khoom sib txawv thiab cov khoom. Qhov ceev ntawm magnesium bricks yog siab tshaj 3.0 thiab lub melting point yog 2850 degree . Qhov ceev ntawm high alumina hluav taws cib yog siab tshaj 2.3 thiab lub melting point yog 1500 degree.
2. Kev piav qhia ntawm cov ntaub ntawv raw thiab refractoriness ntawm magnesia cib
Cov ntaub ntawv raw ntawm magnesite refractory cib yog cov khoom siv magnesia xws li tsawg dua 5 hli mus rau cov hmoov zoo, uas yog crushed, tsim, thiab sintered ntawm qhov kub ntawm 1600 degree. Cov ntaub ntawv raw ntawm siab alumina cib yog alumina hais thiab cov hmoov zoo, uas yog crushed, tsim, thiab sintered ntawm qhov kub ntawm 1450 degree. Ua los ntawm sintering.
Lub refractoriness ntawm magnesia bricks yog siab tshaj 2000 degree, thiab lub load kuj yog 1800 degree. Txawm li cas los xij, magnesium refractory bricks muaj cov thermal conductivity thiab tsis zoo thermal poob siab. Kub kub kuj. Magnesia bricks muaj qhov tsis zoo rau acidic slag thiab tsis tuaj yeem tiv tauj ncaj qha nrog cov khoom siv acidic. Yog hais tias lawv nyob rau hauv lub hauv ob sab phlu nrog cov khoom acidic, lawv yuav tsum tau muab cais los ntawm high alumina cib ua ntej lawv yuav siv tau. Ntxiv mus, magnesium bricks muaj cov dej tsis zoo thiab zoo li cov plaub hau dawb thaum raug dej. Lawv kuj tsim cov kab nrib pleb thiab txo lawv lub zog. Magnesium hluav taws cib yuav tsum tau tiv thaiv los ntawm noo noo, nag thiab daus thaum lub sij hawm cia thiab thauj.
3. Dab tsi yog qhov hluav taws kub tsis kam ntawm siab alumina cib?
Lub refractoriness ntawm siab aluminium bricks yog siab tshaj 1700 degree. Lub load softening kub yog 1520 degree thiab tsis tshaj 1600 degree. Lub load softening kub ntawm siab alumina firebricks kuj txawv heev raws li txawv raw khoom qib. Lub load softening kub ntawm qib peb high aluminium hluav taws cib tseem nyob ib ncig ntawm 1410 degree. Txawm hais tias siab alumina cib yog cov cib nruab nrab, lawv muaj qhov zoo thermal shock stability, tsis ntshai dej, thiab tuaj yeem siv rau hauv cov huab cua tsis muaj zog alkaline thiab tsis muaj zog acidic.
Yog li ntawd, ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, qhov kev xaiv ntawm magnesia bricks los yog siab alumina refractory cib yuav tsum tau ua raws li qib ntawm corrosion thiab cua. Magnesite hluav taws cib yuav tsum tau xaiv nyob rau hauv alkaline cua. Kev siv kub yog qis dua 1400 degree, thiab tsis muaj zog alkali cib siv. Los yog nyob rau hauv qhov chaw tsis muaj zog acid, siab alumina hluav taws cib tuaj yeem siv tau.
Qhov sib txawv ntawm siab alumina cib thiab magnesite refractory cib yog tias lawv muaj cov ntaub ntawv sib txawv, sib txawv ntawm kev ua haujlwm kub, sib txawv corrosion-resistant atmospheres, thiab txawv thermal shock teebmeem. Lwm qhov sib txawv yog tus nqi lag luam. Tus nqi ntawm siab alumina refractory bricks yog tsawg thiab tus nqi ntawm magnesia bricks yog siab.
