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Tsawg creep siab alumina cib rau qhov cub tawg tawg

Tsawg creep siab alumina cib rau qhov cub tawg tawg

Qaum qis thiab siab alumina cib yog cov khoom siv hluav taws xob qib siab ua los ntawm alumina, fused corundum, thiab fused mullite ua cov khoom siv tseem ceeb.

nta

1. Refractoriness

Kev rov ua dua tshiab ntawm cov ntoo qis thiab qib siab alumina cib yog siab dua li cov av nplaum cib thiab cov pob zeb ib nrab silica, mus txog 1750 ~ 1790 ℃, uas yog cov khoom siv qib siab refractory.

2. Thauj qhov kub thiab txias

Vim tias cov khoom lag luam siab alumina muaj Al2O3 siab, tsis muaj qhov tsis huv, thiab tsis muaj lub cev iav fusible, lub nra hnyav ua kom sov siab dua li ntawm cov av nplaum cib. Txawm li cas los xij, vim tias cov mullite muaju tsis tsim cov qauv network, lub ntsuas kub ua kom sov tseem tsis siab li cov cib silica.

3. Slag tsis kam

Tsawg creep thiab qib siab alumina cib muaj ntau dua Al2O3, uas yog ze rau cov khoom siv hluav taws xob nruab nrab, thiab tuaj yeem tiv taus qhov yaig ntawm acidic slag thiab alkaline slag. Vim tias nws muaj SiO2, lub peev xwm los tiv thaiv alkaline slag tsis muaj zog dua li cov kua qaub slag.

siv

Feem ntau yog siv rau sab hauv ntawm lub qhov cub tawg, lub qhov cub tawg tawg, hluav taws xob saum lub qhov cub, lub qhov cub tawg, lub qhov cub tawg rov qab, thiab lub qhov cub tawg.

project Tsawg creep siab alumina cib
HLW-155 HLW-150 HLW-145 HLW-140 HLW-135 HLW-130 HLW-127
Al2O3,% ≥ 75 75 65 65 65 60 50
Pom porosity ,% ≤ 20 21 22 22 22 22 23
Tej ntom ntom, g/cm3 2.65-2.85 2.65-2.85 2.50-2.70 2.40-2.60 2.35-2.30 2.30-2.50 2.30-2.50
Lub zog sib zog ntawm chav sov, Mpa ≥ 60 60 60 55 55 55 50
Creep tus nqi % (0.2Mpa, 50h) ≤ 1550 ℃
0.8
1500 ℃
0.8
1450 ℃
0.8
1400 ℃
0.8
1350 ℃
0.8
1300 ℃
0.8
1270 ℃
0.8
Hloov tus nqi ntawm cov nyiaj rov qab % 1550 2, XNUMX teev 0.1-0.2 0.1-0.2 0.1-0.2        
1450 2, XNUMX teev       0.1-0.2 0.1-0.4 0.1-0.4 0.1-0.4