Njerwa ya Chrome corundum imatanthauza chinthu chopanda mphamvu cha corundum chomwe chili ndi Cr2O3. Pa kutentha kwambiri, Cr2O3 ndi Al2O3 zimapanga yankho lolimba losalekeza, kotero magwiridwe antchito otentha kwambiri a zinthu za chrome corundum ndi abwino kuposa a zinthu zoyera za corundum. Njerwa ya Chrome corundum imagwiritsidwa ntchito mu gasifier ya petrochemical iyenera kukhala ya silicon yochepa, chitsulo chochepa, alkali yochepa komanso chiyero chachikulu, ndipo iyenera kukhala ndi mphamvu zambiri. Zomwe zili mu Cr2O3 zili pakati pa 9% ~ 15%.
Zinthu za njerwa za Chrome Corundum
- Kukana kwambiri moto,
- Mphamvu yayikulu,
- Kukana kuvala bwino,
- Kukana kutentha bwino,
- Kukana bwino asidi ndi alkali,
- Kukhazikika kwa mankhwala.
Njira Yopangira Njerwa ya Chrome Corundum
Njerwa ya Chrome corundum imakonzedwa ndi post-al2o3, kuwonjezera kuchuluka kwa ufa wa chromium oxide ndi ufa wosalala wa chrome corundum clinker, zomwe zimapangidwa ndikuwotchedwa kutentha kwambiri. Kuchuluka kwa chromic oxide mu njerwa ya chrome yopukutidwa nthawi zambiri kumakhala kotsika kuposa kwa njerwa ya chrome corundum yopangidwa ndi fused cast. Chrome corundum block imagwiritsanso ntchito njira yokonzekera mud casting, ufa wa alpha Al2O3 ndi ufa wa chrome oxide, kuwonjezera guluu ndi zomatira zachilengedwe zopangidwa kuchokera ku matope wandiweyani, nthawi yomweyo gawo la chromium corundum clinker, poyika grout mu adobe, ndikuwotchanso.
Mafotokozedwe a Njerwa ya Chrome Corundum
| Mafotokozedwe a njerwa ya Chrome corundum | |||
| Zinthu | Njerwa ya Chrome-Corundum | ||
| Al2O3 % | ≤38 | ≤68 | ≤80 |
| Cr2O3 % | ≥60 | ≥30 | ≥12 |
| Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.5 |
| Kuchuluka kwa Zinthu, g/cm3 | 3.63 | 3.53 | 3.3 |
| Mpa yozizira yopondereza | 130 | 130 | 120 |
| Kusakhazikika pansi pa katundu (0.2MPa ℃) | 1700 | 1700 | 1700 |
| Kusintha Kokhazikika kwa Linear (%) 1600°C×3h | ± 0.2 | ± 0.2 | ± 0.2 |
| Kuoneka kwa porosity % | 14 | 16 | 18 |
| Kugwiritsa ntchito | Zitofu zamafakitale zotentha kwambiri | ||
Kugwiritsa Ntchito Njerwa ya Chrome Corundum pa Ng'anjo
Njerwa za Chrome corundum zimagwiritsidwa ntchito makamaka m'malo omwe amafunika kupsinjika kwambiri komanso kutentha kwambiri, monga njerwa zotsetsereka m'ziwiya zachitsulo zopukutira zitsulo, ng'anjo zoyenda zozungulira za nsanja yopopera, komanso mkati mwa zowononga, M'zipinda za ng'anjo ya soot ya carbon ndi ng'anjo yosungunula mkuwa yopopera ya ng'anjo yopukutira, komanso kutenthetsanso ng'anjo yopopera.
