High alumina hluav taws cibtxhais tau tias cib nrog Al2O3 cov ntsiab lus tshaj 48%. Raw khoom yog siab alumina bauxite los yog lwm yam refractory raw cov ntaub ntawv nrog siab alumina cov ntsiab lus xws li tabular alumina, calcined alumina thiab lwm yam. High alumina bricks yog nrog cov khoom ruaj khov, siab refractoriness tshaj 1770 degree, zoo heev slag kuj thiab lwm yam. Lawv tau dav siv rau hauv linings ntawm Electric Arc MAAs rauv, thiab lwm yam.
Cib nrog siab refractoriness nyob rau hauv load thiab tsis muaj creep kev ua tau zoo yog tsim los ntawm high quality raw cov ntaub ntawv xws li super qib bauxite, fused corundum, fused mullite thiab lwm yam. Cov cib uas tsis muaj thermal creep, siab corrosion kuj, zoo heev thermal shock kuj thiab lwm yam, lawv yog tsim nyog rau loj thiab nruab nrab kub moj tej tawg qhov cub.
Ua cov txheej txheem rau siab alumina cib zoo ib yam li cov calcined hluav taws kub av nplaum cib. Rau siab alumina hluav taws cib, calcined raw cov ntaub ntawv siv ntau dua, txog 90 ~ 95%. Cov calcined raw cov ntaub ntawv raug faib thiab kho nrog hlau tshem tawm ua ntej yuav sib tsoo, yog li firing kub ntawm siab alumina bricks yog siab dua. Cov qib super thiab qib siab alumina cib yog sintered nyob rau hauv qhov kub ntawm 1500-1600 degree
Ib qho ntawm cov khoom tseem ceeb ntawm kev ua haujlwm siab ntawm alumina hluav taws kub yog nws lub zog ntawm qhov kub thiab txias, uas feem ntau yog ntsuas los ntawm kev thauj khoom softening deformation kub. Lub siab kub creep kuj tau ntsuas kom muaj kev cuam tshuam qhov kub ntawm cov qauv siv zog. Cov txiaj ntsig kev sim qhia tau hais tias qhov muag muag kub hauv qab load nce nrog nce ntawm Al2O3 cov ntsiab lus.
Thaum cov ntsiab lus ntawm alumina tsawg dua 70%, lub load softening kub ntawm siab alumina refractory nyob ntawm qhov kev faib ua feem ntawm mullite siv lead ua theem thiab cov theem ua kua, thiab nce nrog nce cov ntsiab lus ntawm mullite. Tus nqi thiab cov khoom ntawm cov kua theem muaj kev cuam tshuam rau qhov muag muag kub hauv qab load. Yog li ntawd, txo cov impurity cov ntsiab lus nyob rau hauv raw khoom yog zoo los txhim kho lub load softening kub thiab siab kub creep.
HIGH ALUMINA FIRE BRICKS Cov Khoom Muag:
|
Khoom siv |
Feem ntau |
Tshwj xeeb |
|||||||||||||
|
Yam khoom |
TSI SK36 |
TSI SK38 |
TS 80 |
TS 85 |
TSI-92 |
TSI-90 |
TSI-85 |
TSI-80 |
TSI-75 |
TSI-70 |
TSI-60 |
TSI-50 |
|||
|
Pyrometric Cone Sib npaug Orton cone |
35-36 |
37-38 |
38 |
﹥38 |
40 |
40 |
40 |
39 |
39 |
38 |
37 |
36 |
|||
|
Refractoriness (zeeg) |
1785 |
1810 |
1835 |
1840 |
– |
– |
– |
– |
– |
– |
– |
– |
|||
|
0.2 MPa mos hauv qab load (%) |
– |
– |
– |
– |
1700 |
1700 |
1700 |
1670 |
1650 |
1580 |
1550 |
1500 |
|||
|
Qhov ceev (kg / m³) |
2300-2350 |
2400-2450 |
2550-2650 |
2650-2750 |
3.10 |
2.95 |
2.90 |
2.85 |
2.70 |
2.62 |
2.50 |
2.40 |
|||
|
Pom tseeb Porosity (%) |
20.0-22.0 |
19.0-20.0 |
18.0-19.0 |
17.0-18.0 |
16 |
16 |
19 |
18 |
18 |
18 |
18 |
18 |
|||
|
Txias Crushing Zog (MPa) |
45-48 |
50-55 |
60-65 |
70-75 |
80 |
80 |
800 |
750 |
700 |
700 |
650 |
600 |
|||
|
Modulus ntawm Rupture (kg / cm²) |
70-80 |
80-90 |
90-100 |
150-180 |
– |
– |
– |
– |
– |
– |
– |
– |
|||
|
Thermal Expanison ntawm 1000℃(%) |
– |
– |
– |
– |
– |
– |
0.75 |
0.7 |
0.65 |
0.60 |
0.55 |
0.50 |
|||
|
Rov ntsuas dua, hloov pauv mus tas li tom qab cua sov ntawm |
1500 degree, 2h (%) |
– |
– |
– |
– |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
||
|
1400℃(%) |
(+)0.5 |
(+)1.00 |
(+)1.02 |
– |
– |
– |
– |
– |
– |
– |
– |
– |
|||
|
SiO2 (%) |
38.2 |
20.2 |
14.0 |
8.7 |
– |
– |
– |
– |
– |
– |
– |
– |
|||
|
Al2O3 (%) |
48-55 |
70-75 |
81.1 |
85 |
92 |
90 |
85 |
80 |
76 |
70 |
65 |
50 |
|||
|
Fe2O3 (%) |
1.8 |
1.8 |
1.8 |
1.8 |
0.8 |
0.8 |
1.0 |
1.0 |
– |
– |
– |
– |
|||
|
Cao (%) |
0.4 |
0.4 |
0.3 |
0.2 |
– |
– |
– |
– |
– |
– |
– |
– |
|||
|
Na2O+K2O + Li2O (%) |
0.5 |
0.5 |
0.3 |
0.2 |
– |
– |
– |
– |
– |
– |
– |
– |
|||
Cim npe nrov: Tuam Tshoj high alumina hluav taws cib manufacturers, lwm tus neeg, Hoobkas
