Kev tawm tsam hnyav cib xa mus rau cov khoom lag luam yaj ntawm alumina muaj ntau dua 46% al2o3 thiab ib qho ntom ntom ntau dua 2. {4 4}}.
1. Cov ntaub ntawv nyoos
Cov ntaub ntawv nyoos ntawm cov pob zeb hnyav sib tsoo feem ntau yog ntuj raw cov ntaub ntawv thiab khoom siv hluavtaws raw.
Ntuj raw cov ntaub ntawv tsuas yog suav nrog dedspore (Al2o3unite (Al2o3o), Sillimanite (Al2o362.9%, Sio237.1%),
thiab isomers ntawm kyanite thiab sillimanite.
Cov khoom siv hluavtaws cuav yog cov khoom siv hluavtaws, uas feem ntau yog tsim los ntawm cov txheej txheem tshuaj lom neeg, xaiv kyanite thiab av nplaum minerals rau synthesis. Cov khoom siv hluav taws xob hluavtaws feem ntau yog suav nrog Mullite 3al2o3 · 2Si syn syn · 2Ntom of -Corundum (Al2o3) thiab Mullite synthesized los ntawm kev sib xyaw los ntawm sintering.
2. Tshuaj lom neeg sib xyaw
Kev tiv thaiv hnyav ua rau cov cib ua los ntawm cov khoom sib txawv muaj cov muaj ntau yam sib txawv. Cov ntsiab lus Al2o3 tuaj yeem yog li ntawm 46% rau ze li ntawm 95%. Lub Sio2 cov ntsiab lus tuaj yeem yog los ntawm 0. 5% rau 47%.
3. Crystalline Tayase muaj pes tsawg leeg
Theem Crystal muaj kev sib xyaw ntawm cov cib hnyav hnyav sib txawv nrog AL2O3 cov ntsiab lus. Muaj ntau cov sillimanite, mullite, corundum, thiab kuj muaj ib feem ntawm quartz thiab Cristobalite. Cib feem ntau muaj lub khob theem muaj kev sau ntawm AL2O3, Sio2 thiab lwm cov neeg oxebide.
Thaum Al2o3 cov ntsiab lus ntawm kev tawm tsam hnyav bricks yog {}}}}%, lub ntsiab}%, lub ntsiab lus crystal parses yog mullite thiab sillimanite. Thaum Al2o3 cov ntsiab lus yog 65-80%, mullite yog lub ntsiab crystal theem. Thaum Al2o3 cov ntsiab lus yog siab dua 80%, lub Corundum cov ntsiab lus maj mam nce. Tsuas yog rau hom tshwj xeeb, kev ua haujlwm hnyav ua cib feem ntau muaj tsawg dua 80% AL2O3. Hnyav refractory cib muaj ntau tshaj 80% al2o3 feem ntau yog hu ua COLUNDUM Cib.
Av nplaum hnyav ncab
|
yam haujlwm |
N-1 |
N-2a |
N-2b |
N-3a |
N-3b |
N-4 |
N-5 |
N-6 |
|
Hluav taws tsis kam / degree ntau dua los yog sib npaug |
1750 |
1730 |
1730 |
1710 |
1710 |
1690 |
1670 |
1580 |
|
Pib kub ntawm 0. 2MPA Thauj khoom muag muag / degree ntau dua lossis sib npaug |
1400 |
1350 |
- |
1320 |
- |
1300 |
1300 |
1300 |
|
Reburning kab hloov (1400 degree × 2h) /% |
+0.1--0.4 |
+0.1--0.5 |
+0.2--0.5 |
- |
- |
- |
- |
- |
|
Pom porosity /% tsawg dua lossis sib npaug |
22 |
24 |
26 |
24 |
26 |
24 |
26 |
28 |
|
Chav sov kub compressive zog / mpa ntau dua lossis sib npaug |
30 |
25 |
20 |
20 |
15 |
20 |
15 |
15 |
Siab alumina hnyav refractory cib
|
yam haujlwm |
Lz -80 |
Lz -75 |
Lz -65 |
Lz -55 |
Lz -48 |
|
|
Al2O3/% Ntau dua lossis sib npaug |
80 |
75 |
65 |
55 |
48 |
|
|
Pom porosity /% tsawg dua lossis sib npaug |
22 |
23 |
23 |
22 |
22 |
|
|
Chav sov kub compressive zog / mpa ntau dua lossis sib npaug |
55 |
50 |
45 |
40 |
35 |
|
|
{{0 {0}}. 2Mpa 10. 2Mpa Pib Kub ntawm Load Softening / Qib Siab dua lossis sib npaug |
1530 |
1520 |
1500 |
1450 |
1420 |
|
|
Kev Hloov Cua Cua Sov Mus Hauv Kev Hloov /% |
1500 degree × 2h |
+0.1--0.4 |
- |
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|
1450 degree × 2h |
+0.1--0.4 |
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Cim npe nrov: Hnyav Refractory Cib, Tuam Tshoj Hnyav Refractory Cib Cov Khaub Ncaws Hnav, Chaw muag khoom, Hoobkas