DAWB FUSED ALUMINA FINES Refractory Cement
| DAWB FUSED ALUMINA FINES | ||
|---|---|---|
| WFA (FINES) | SPECIFICATION | MIN/MAX |
| AL2O3 | 98.90% | MIN |
| FE2O 3 | O.30% | MAX |
| NA2O + K2O | O.70% | MAX |
| SIB 2 | 0.20% | MAX |
| Refractory Cement | ||
|---|---|---|
| CA 50 | SPECIFICATION | MIN/MAX |
| AL2O3 | 50-53% | |
| CAO | 30-35% | |
| FE2O 3 | 2.50% | MAX |
| SIB 2 | 9.00% | MAX |
| TSO 2 | 3.00% | MAX |
| SIZE | 325 MESH 90% | MIN |
1) Lawv yog cov xim sib txawv. Brown fused alumina (BFA) yog xim av thiab dawb fused alumina (WFA) yog dawb.
2) Qhov ceev ntawm BFA yog (1.53 ~ 1.99g / cm3), thiab qhov tseeb qhov ceev yog (3.90g / cm3). Qhov ntom ntom (1.75-1.95g / cm3) thiab lub ntiajteb txawj nqus (3.95-3.97g / cm3) ntawm WFA tau pom.
3) Cov khoom siv tseem ceeb ntawm BFA yog bauxite, thiab cov khoom siv tseem ceeb ntawm WFA yog aluminium oxide hmoov.
4) Cov tshuaj muaj pes tsawg leeg sib txawv. Dawb fused alumina Al2O3 ntau dua 99%, Na2O3: 0.3%. Brown fused alumina Al2O3: ntau dua 90%, tertiary Al2O3 cov ntsiab lus ntau dua 85%.
5) BFA refractory kub 1850 degree, WFA refractory kub 2100 degree.
6) Txawm hais tias lawv muaj Mohs hardness ntawm 9.0, WFA nyuaj dua BFA, thiab BFA hloov tau dua li WFA.
Ob leeg yog cov khoom siv rau cov ntawv thov refractory (mortars, crucible, amorphous refractories) los yog cov khoom abrasive (sib tsoo log, txiav log, tig daim hlau, polishing media, sandblasting media). Cov ntsiab lus ntawm ob cov ntaub ntawv yog alumina (Al2O3).
1, lawv yog cov xim sib txawv. Brown fused alumina (BFA) yog xim av thiab dawb fused alumina (WFA) yog dawb.
2, BFA yog ua los ntawm bauxite thiab lwm yam raw khoom nyob rau hauv hluav taws xob arc rauv, WFA yog ua los ntawm calcined txhuas oxide hmoov nyob rau hauv hluav taws xob arc rauv.
3, Al2O3 cov ntsiab lus ntawm BFA yog li 95%, thiab cov ntsiab lus ntawm WA yog ntau tshaj 99%
4, WA nyuaj dua BFA, txawm hais tias lawv yog ob qho tib si nyuaj (hardness 9), thaum WFA yog qhov yooj yim dua.
Qhov zoo sib xws ntawm BFA thiab WFA yog raws li hauv qab no:
Ob lub ntsiab minerals: -Al2O3
Ob qhov PH tus nqi: nruab nrab
Qhov siab tshaj plaws siv tau ntawm ob qho tib si hauv huab cua yog 1900 degrees Celsius thiab qhov decomposition point yog 2250 degrees Celsius.
Lub ntsiab tshuaj muaj pes tsawg leeg ntawm cov khoom tiav yog: Al2O3
Ob lub ntsiab kev siv yog: refractory thiab abrasive khoom.
Ob leeg Mohs hardness: 9.0,
Qhov txawv yog raws li nram no:
Qhov ceev ntawm BFA yog (1.53 ~ 1.99g / cm3), thiab qhov tseeb qhov ceev yog (3.90g / cm3). WFA packing ceev (1.75-1.95g /cm3) thiab qhov ceev tiag (3.95-3.97g /cm3).
Cov khoom siv tseem ceeb ntawm BFA yog bauxite, thiab cov khoom siv tseem ceeb ntawm WFA yog calcined aluminium oxide hmoov.
Cov ntsiab lus Al2O3 ntawm BFA yog ntau dua 95% thiab Al2O3 cov ntsiab lus ntawm WFA yog ntau dua 99%.
Qhov hluav taws kub kub ntawm BFA yog 1850 degrees Celsius, thiab hluav taws kub ntawm WFA yog 2100 degrees Celsius.
Txawm hais tias lawv muaj Mohs hardness ntawm 9.0, WFA nyuaj dua BFA, thiab BFA hloov tau dua li WFA.