Ko te pereki kōruma kōruma he hua ātete kōruma kei roto ko te Cr2O3. I te pāmahana teitei, ka hanga e te Cr2O3 me te Al2O3 he wairewa totoka tonu, nō reira he pai ake te mahi pāmahana teitei o ngā hua kōruma kōruma i ērā o ngā hua kōruma parakore. Ko te pereki ahi kōruma kōruma e whakamahia ana i roto i te whakapūngao hau matū hinu me iti te silicon, iti te rino, iti te kawakore me te parakore teitei, ā, me teitei te mātotoru me te kaha. Ko te ihirangi o te Cr2O3 kei roto i te awhe 9%~15%.
Ngā Āhuatanga o te Pereki Kōrumumu Chrome
- Te ātete ahi teitei,
- Te kaha nui,
- He ātete pai ki te kakahu,
- He ātete pai ki te ru wera,
- He ātete pai ki te waikawa me te kawakore,
- He pai te pumau o te matū.
Te Tukanga Hanga Pereki Kōruma Koruma
Ka tukatukahia te pereki kōruma chrome ki te post-al2o3, ka tāpirihia he nui o te paura chromium oxide me te paura pai o te clinker chrome corundum, ka hangaia, ka tahuna i te pāmahana teitei. Ko te nui o te chromic oxide i roto i te pereki chrome kua whakatōkia he iti ake i te nui o te pereki chrome corundum kua whakarewahia. Ka whakamahia hoki e te poraka chrome corundum te tikanga hanga paru, ko te paura alpha Al2O3 me te paura chrome oxide te ranunga, ka tāpirihia he kāpia me ngā piripiri waro i hangaia mai i te paru matotoru, i te wā kotahi ka uru ki te clinker chromium corundum, mā te whakakī ki roto i te adobe, ka tahuna anō.
Ngā Whakatakotoranga o te Pereki Kōrumuma Chrome
| Ngā Whakatakotoranga o te pereki kōrumuma Chrome | |||
| Ngā taonga | Pereki Chrome-Corundum | ||
| Al2O3 % | ≤38 | ≤68 | ≤80 |
| Cr2O3 % | ≥60 | ≥30 | ≥12 |
| Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.5 |
| Te Matotoru o te Papatipu, g/cm3 | 3.63 | 3.53 | 3.3 |
| Kaha pēhi makariri MPa | 130 | 130 | 120 |
| Te ātete i raro i te kawenga (0.2MPa ℃) | 1700 | 1700 | 1700 |
| Huringa Raina Tuturu (%) 1600°C×3h | ±0.2 | ±0.2 | ±0.2 |
| % o te pūngao āhua | 14 | 16 | 18 |
| Tono | Ngā oumu ahumahi pāmahana teitei | ||
Te Whakamahinga o te Pereki Koromu Koruma mō te Ouma
Ko te pereki kōruma chrome te mea e whakamahia nuitia ana i ngā wāhi e hiahia ana kia nui te ātete ki te pakū me te pāmahana, pērā i ngā pereki rēri reti i roto i ngā oumu whakarewa maitai pana, ngā oumu kurupae hikoi momo papa pato, me te mea hoki hei roto mō ngā mea whakangaro, i roto i ngā arai o te oumu pungarehu waro me te papa pato oumu kakara parahi o te oumu mira hurihuri, te whakamahana anō i te rēri reti oumu.
