Njerwa ya Corundum mullite ndi mtundu wa njerwa zosasunthika zopangidwa kuchokera ku zoyera kwambiri kapena zopangira zoyera, komanso chipika cha corundum mullite ndi njerwa yamoto ya alumina yomwe imapangidwa ndi corundum ndi mullite main crystalline gawo. Zida zazikulu za njerwa za corundum mullite zimatumizidwa kunja kwa mbale corundum, corundum yoyera yoyera kwambiri, imatengera luso lapamwamba lowonjezera la ufa, limapangidwa ndi zinthu zosakaniza, kuyanika, kuumba ndi kuwotchedwa mu uvuni wotentha kwambiri.
Makhalidwe a Njerwa ya Corundum Mullite
- High quality zopangira,
- High purity corundum,
- Kukhazikika kwamphamvu kwa voliyumu pa kutentha kwakukulu,
- Kuwumbidwa ndi kuthamanga kwambiri komanso kutentha kwakukulu,
- Zabwino zolimbana ndi kutentha kwamafuta,
- Kuvala kukana,
- Chemical attack resistance.
Njira Yopangira Njerwa ya Corundum Mullite
Njerwa ya Corundum mullite imapangidwa ndi njerwa zopangidwa ndi mullite ndi particles za mullite kuti ziphatikizepo, ndipo alpha Al2O3 ufa wa ufa, ukhozanso kusakanikirana kapena kusakaniza tinthu tating'ono ta corundum kuti tiphatikize zakuthupi, kupanga mullite ufa wa ufa. Zophatikiza ndi ufa zimasakanizidwa molingana ndi gawo linalake ndi kukula kwambewu. The zinyalala mowa zamkati pepala ndi sulfite ntchito monga womanga, ndi zipangizo anawonjezera mu dongosolo linalake. Kusakaniza kwathunthu ndi ngakhale, ndi mikangano atolankhani kapena hayidiroliki atolankhani njerwa akamaumba machine.Adobe pambuyo kuyanika, kuwotcha mu 1650 ~ 1750 ℃.
Zolemba za Njerwa za Rongsheng Refractory Corundum Mullite
| Zinthu | Wapamwamba Wangwiro ndi Wapamwamba Njerwa ya Corundum yosakanikirana |
Sintered Corundum njerwa | Njerwa ya Mullite-Corundum |
| Al2O3 % | ≥99 | ≥90 | ≥80 |
| SiO2% | ≤0.2 | ≤8 | ≤18 |
| Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.3 |
| Kuchulukana kwakukulu g/cm3 | ≥3.2 | ≥3 | ≥2.8 |
| Kuwoneka porosity% | ≤19 | ≤18 | ≤18 |
| Cold compressive mphamvu MPa | ≥100 | ≥100 | ≥100 |
Mtengo wa Njerwa za Corundum Mullite
Nthawi zambiri, njerwa za cordundum mullite zimagawidwa kukhala njerwa zophatikizika ndi zosakaniza, mtengo wamitundu iwiri ya njerwa za corundum mullite ndizosiyana kwambiri pamsika, mtengo wake uli pamitundu yambiri mpaka 10,000. Tikukulimbikitsani kuti njerwa zamoto za corundum mullite ziyenera kusankhidwa malinga ndi mbali zosiyanasiyana za ng'anjo, osati kusintha moyo wa ng'anjo, komanso kuchepetsa mtengo.
Kugwiritsa ntchito njerwa ya Corundum Mullite ku Ng'anjo
Njerwa ya Cordundum mullite imatha kukhudzana ndi lawi lamoto, kukana kwa spalling, kukana kutentha kwambiri, kungagwiritsidwe ntchito ngati kutchinjiriza kutentha kwa ng'anjo yamoto yamafakitale. Komanso njerwa yamoto ya corundum mullite ingagwiritsidwe ntchito ngati ng'anjo yamoto yamafakitale, yomwe imagwiritsidwa ntchito kwambiri m'makampani a petrochemical, ammonia gasifier yayikulu komanso sing'anga-kakulidwe ndi maginito a ng'anjo ya gasi yokhala ndi zinthu, kutentha kwambiri kwamafuta opangira mafakitale, etc.
