Av nplaum, cov khoom siv alumina siab

Av ci cib yog cov ntsiab lus refractory nrog 30% mus rau 48%, ua los ntawm cov av nplaum clinner raws li kev sib sau ua ke thiab av nplaum lossis av nplaum. Nws yog cov khoom lag luam refractory nrog ntau cov kev siv thiab cov zis loj tshaj plaws.

 

Cov txheej txheem ntau lawm ntawm cov khoom siv alumina siab cib yog zoo ib yam li ntawm cov khoom sib xyaw clinker av nplaum. Cov txheej txheem ntau lawm yuav tsum tau txiav txim siab raws li cov xwm txheej tshwj xeeb ntawm cov khoom lag luam tshwj xeeb, cov khoom siv raw thiab cov khoom muaj ntau lawm. Kev cais tawm ntawm Clinker Blocks ua ntej crushing cia thiab hlau tshem tawm cov ntaub ntawv granular, thiab kev sib tsoo kom zoo ntawm clay yog saws.

Cov khoom ntawm cov lus av nplaum cov khoom lag luam hloov pauv ntau dua vim muaj kev sib txawv ntawm cov tshuaj muaj pes tsawg leeg ntawm cov khoom lag luam thiab cov txheej txheem ntau lawm. Cov khoom av nplaum feem ntau muaj cov yam ntxwv nram qab no:

(1) Tshuaj thiab cov ntxhia muaj pes tsawg leeg. Lub ntsiab lus Al2o3 yog 30% ~ 48%, lub Sio2 Cov Ntsiab Lus yog 50%, thiab lwm yam me me ntawm cov ntxhia yog feem ntau: Mullite, Cristobalite, Quartz, thiab iav theem.

(2) Kev Debractory degree feem ntau yog 1580 ~ 1750c, uas nce nrog kev nce ntawm Al2o3 / Sio2. Thaum cov ntsiab lus ntawm cov ntsiab lus tsis tshua muaj melting yog qhov siab, cov refractory degree ntawm cov khoom yog txo qis.

(3) Lub load softening kub yog li 1250 ~ 1450c, thiab nws cov kev hloov pauv ntau yam dav. Qhov pib deforming kub yog tsawg, uas yog kwv yees li 200 ~ 250c sib txawv los ntawm 40% deformation kub.

(4) Tus coefficient ntawm linear nthuav tawm yog tsawg, thiab nws thermal conductivity tseem tsawg.

(5) Lub zog poob siab tsis kam yog qhov zoo thiab qhov kev hloov pauv yog qhov loj. 1100C Dej txias voj voog yog feem ntau ntau tshaj 10 zaug. Qhov no muaj feem cuam tshuam rau qhov qis dua nthuav tawm coefficient ntawm cov khoom av nplaum, qhov tseem ceeb crystal hloov cov nyhuv thiab lub zog ntawm kev kub siab.

(6) Tshuaj Yaig Yis Yaig Yis: vim tias nws tsis muaj zog acidic, nws muaj zog ua rau acidic slag yaig thiab tsis muaj zog rau cov khoom siv alkaline.

Cov khoom av nplaum yog acidic cov khoom siv hluav taws xob cov khoom lag luam, thiab lawv cov acidity nce raws li SOO2 cov ntsiab lus nce ntxiv. Nws muaj qee qhov corrosion tsis kam rau acidic slag, tab sis muaj kev tsis txaus siab mus rau alkaline slag corrosion. Yog li ntawd, cov khoom av nplaum yuav tsum tau siv ua cov kab ntawm cov kua qaub. Nws kuj yog siv nyob rau hauv qhov kub-kub ntawm lub tshuab tawg, kub ntshiab rauv, iav kilns, thiab cov pa roj carbon ci ci.

Cov yam ntxwv ntawm cov qib siab Alumina siab thiab cov khoom lag luam siab yog cov hauv qab no:

1.Kiv softening kub. Lub thauj khoom softening kub ntawm dog dig-aluminium refractory ntau tshaj 1420 ~ 1550c, uas yog siab dua li ntawm cov av av nkos, thiab nce ntxiv nrog kev nce ntawm AL2O3 cov ntsiab lus. Thaum Al2o3<70%, its load softening temperature increases with the increase in the ratio of mullite phase to glass phase. The quantity and nature of the liquid phase have a significant impact on the load softening temperature, thus reducing the impurity content in the raw material. It is beneficial to improve the load softening temperature and high temperature creep property; when Al2O3>70%, raws li Al2o3 cov ntsiab lus nce, lub load softenion kub tsis nce ntau.

(2) thermal poob siab tsis kam. Lub thermal poob siab ntawm decond high-alumina refractory feem ntau yog nyob ntawm cov tshuaj ntxhia pob zeb thiab microstructure. Nws yog feem ntau phem dua li cov khoom av nplaum.

(3) Tshuaj yaig moj tej kuab kuab tshuaj yaig. Cov khoom siv alumina muaj kev cuam tshuam zoo rau kev yaig thiab oxidation thiab txo cov khoom siv rau cov ntsiab lus ntawm Al2o3 thiab txo qis ntawm kev teeb meem cov ntsiab lus.

High-alumina cov khoom lag luam feem ntau yog siv nyob rau hauv cov chaw ua kom sov xws li lub tshuab hluav taws kub tawg, kub ntshiab hluav taws xob, thiab cov hluav taws xob cua sov.

2.Qhov kev ntsuas lub cev thiab tshuaj ntawm cov qib siab Alumina siab tau muab faib ua ob peb hom: lz}}}, lz} -48.

Cim npe nrov: Av nplaum, cov khoom siv Alumina siab, Tuam Tshoj General av nplaum, High Alumina Khoom lag luam, lwm tus neeg, Hoobkas