Mipira yopingasa ya alumina ili ndi mphamvu zambiri, kuuma kwambiri, kuthekera kwabwino kwambiri kokanda, kuchuluka kwakukulu kwa zinthu, kutentha kwambiri, kukana dzimbiri, kuipitsa pang'ono ndi zinthu zina zabwino kwambiri. Mipira ya alumina yagwiritsidwa ntchito kwambiri pomaliza ndi kukonza zinthu zosiyanasiyana za ceramic, enamel, galasi, mankhwala ndi zinthu zina zokhuthala komanso zolimba.
Katundu wa Mipira Yopopera ya Alumina
- Kukana Kutentha Kwambiri
- Kukana Kutentha Kwabwino
- Mphamvu Yapamwamba Yamakina
- Moyo Wautali wa Utumiki
Kuphatikizika kwa Mipira Yopopera ya Alumina
Mipira yopingasa ya alumina imapangidwa ndi AL2O3, kaolin, synthetic aggregate, mullite crystal ndi zipangizo zina. Malinga ndi njira yozungulira ndi yopangira makina, mipira yopingasa ya aluminiyamu ili ndi ubwino wa mphamvu zambiri, kukana kutentha bwino, kusintha ndi kuyeretsa mosavuta, moyo wautali wa ntchito ndi zina zotero.
Njira Yopangira Mipira Yosasinthika ya Alumina
Pofuna kupanga mipira yotsutsa ya alumina, electrode imayikidwa pansi pa choyimbira cha graphite, ndipo arc ikhoza kuyambika powonjezera kuchuluka kwa ufa wa alumina wa mafakitale. Mphamvu yogwira ntchito 1.0kA, voliyumu 80 ~ 100V. Pambuyo pogunda, pamene Al2O3 isungunuka, imakweza pang'onopang'ono, mpaka madzi azinthuzo atadzazidwa ndi choyimbira cha graphite, kutentha kwa madzi azinthuzo ndi 2200 ~ 2300 ℃. Pambuyo pake, choyimbiracho chimathiridwa ndipo yankho limatuluka.
Tsatanetsatane wa Zamalonda: Mipira Yopumira ya Alumina
| Chinthu | Aluminiyamu yapamwamba | Kutsika pang'ono | Mullite | Corundum |
| Kukula (mm) | 40-80 | 40-80 | 40-80 | 40-80 |
| AL2O3(%) | 65 | 70 | 75 | 95 |
| Kusakhazikika kwa mpweya pansi pa katundu (°C) | 1450 | 1460 | 1530 | 1650 |
| Kuoneka ngati Porosity (%) | 25 | 23 | 22 | 18 |
| Kuchuluka Kwambiri (g/cm3) | 2.3 | 2.4 | 2.5 | 3.1 |
| Mphamvu yopondereza yozizira (Mpa) | 13 | 14 | 32 | 36 |
| Kukana kutentha kwa kutentha (kuzizira kwa madzi 1100°C) kuzungulira ≥ | 15 | 10 | 20 | 7 |
| Kusakhazikika kwa mpweya (°C) | 1710 | 1750 | 1800 | 1800 |
Kugwiritsa Ntchito Mipira Yopopera ya Alumina
Mipira yopingasa ya alumina yagwiritsidwa ntchito kwambiri pomaliza ndi kukonza zinthu zosiyanasiyana za ceramic, enamel, galasi, mankhwala ndi zinthu zina zokhuthala komanso zolimba. Makamaka mipira yopingasa ya aluminiyamu yoyenera kugwiritsa ntchito popatulira kutentha kwa mpweya ndi ng'anjo yachitsulo yophulika ngati chosungira kutentha.
