Yuav ua li cas thiaj paub qhov txawv ntawm qhov ua tau zoo thiab qhov tsis zoo thaum yuav cov av alumina siab?

Yuav ua li cas thiaj paub qhov txawv ntawm cov qib siab alumina cib thaum yuav cov av alumina siab? Ntawm qhov one tes, nws tuaj yeem pom nrog qhov muag liab qab, ntawm qhov tod tes, nws tseem tuaj yeem kuaj pom thiab paub qhov txawv.

Ob lub ntsiab lus tseem ceeb pom los ntawm qhov muag liab qab:

A. Cov tsos tsis zoo

Saib ntawm cov ntsiab lus ntawm cov khoom tsis huv ntawm cov nplaim hluav taws, peb feem ntau pom qee qhov xim dub nyob saum npoo av alumina siab. Cov no yog cov khoom tsis huv hauv cov ntaub ntawv raw. Kev xav, qhov tsawg dua qhov tsis huv, zoo dua, vim tias cov khoom tsis huv no feem ntau yog hlau oxides. , Nws tsuas yog txo qis rau cov hlau yaj uas ntws tawm hauv qhov chaw kub ntawm qhov cub tawg, tsim kev puas tsuaj rau cov txheej txheem cib hluav taws xob, thiab tom qab ntawd cuam tshuam rau kev pabcuam lub neej ntawm cov cib hluav taws xob. Raws li cov khoom lag luam, qhov ua tau zoo ntawm cov cib hluav taws xob cuam tshuam ncaj qha cuam tshuam rau kev tsim khoom thiab cov nqi tsim khoom ntawm lub tuam txhab. Cov cib cib tsis zoo yuav tsis tsuas yog ua rau ntau yam kev txhim kho hauv kev tsim khoom, nce nqi tsim khoom, tab sis kuj nce kev tsim kho thiab tsim khoom. Ntau qhov phom sij uas zais tsis tau.

B. Cov tsos xim thiab cov nplaum nto

Pom lub cib hluav taws kub hnyiab, peb yuav tsum pom cov xim zoo nkauj thiab lub nplaum ntawm cov cib. Qhov zoo ntawm qee cov cib hluav taws xob tsis zoo, thiab cov nplaim dej tsis zoo heev, uas ua rau lub zog ntawm cov cib hluav taws xob tawg. Qhov tsis sib xws ntawm cov tsos thiab xim ntawm cov cib ua hluav taws kub qhia pom tias cov khoom sib xyaw sib npaug thaum tsim cov cib ua hluav taws kub. Kev faib cov ntaub ntawv tsis sib luag yuav ua rau faib tsis sib luag ntawm lub zog ntawm cov cib ua hluav taws kub, thiab tom qab ntawd txo qis tag nrho lub zog thiab kev pab cuam lub neej ntawm cov cib ua hluav taws xob.

Peb lub ntsiab lus tseem ceeb sib txawv los ntawm kev kuaj pom:

A. Slag tsis kam

Cov av alumina siab muaj ntau dua Al2O3, uas yog cov khoom siv ua kom tsis muaj qhov nruab nrab thiab tuaj yeem siv rau hauv ib puag ncig alkaline lossis acidic. Vim tias nws muaj silica silicon SIO2, slag tsis kam nyob hauv ib puag ncig alkaline zoo dua li nyob hauv ib puag ncig acidic.

B. Thauj qhov kub thiab txias

Vim tias cov khoom siv alumina siab muaj Al2O3 siab, tsis muaj qhov tsis huv, thiab iav tsis tuaj yeem siv tau, qhov hnyav ua kom sov siab dua li ntawm cov av nplaum cib, tab sis vim mullite muaju tsis tsim cov qauv network, kev siv qhov kub tsis zoo li ntawm siliceous refractories. .

C. Refractoriness

Qhov refractoriness ntawm qib siab alumina cib yog siab dua li cov av nplaum cib, nce mus txog 1750 degrees Celsius txog 1790 degrees Celsius, uas yog cov khoom siv hluav taws xob zoo.

Qhov saum toj no yog txoj hauv kev kom paub qhov txawv ntawm cov qib alumina siab, kuv vam tias nws yuav pab tau koj.