Ngā Pōro Ukume Alumina mō te Rokiroki Wera me te Rokiroki Wera mō ngā Oumu Ahumahi
Ngā Pōro Ukume Alumina mō te Rokiroki Wera me te Rokiroki Wera mō ngā Oumu Ahumahi
He mea hanga te pōro uku rokiroki wera ki te alumina ahumahi me te kaolin ātete-wera hei rauemi mata matua. He mea hanga pūtaiao, he mea hanga, he mea whakapūkara hoki i te pāmahana teitei. He āhuatanga pai ōna:
1) Te kaha miihini teitei me te roa o te ora ratonga;
2) He pai te pumau matū, kāore he tauhohenga matū ki ngā rauemi;
3) He pai te ātete ki te pāmahana teitei, ka taea e te pāmahana ātete wera teitei te eke ki te 1900℃.
| Taonga | Pōro rokiroki matao | Pōro rokiroki wera |
| Al₂O₃ (%) | 20-30 | ≥65 |
| SiO₃+Al₂O₃(%) | ≥90 | |
| Fe₂O₃(%) | ≤1 | ≤1.6 |
| Rahi (mm) | 10-20/20-40 | 16-18/20-25 |
| Te kaha wera (J/kg.k) | ≥836 | ≥1000 |
| Te kawe wera (w/mk) | 2.6-2.9 | 2-4 |
| Ātete ru wera (℃) | 800 | 1000 |
| Ātete (℃) | 1550 | 1750 |
| Ngaronga o te pakū (%) | ≤0.1 | |
| Te pakeketanga o Mohs (tauine) | ≥6.5 | |
| Kaha kuru (N) | 800-6000 | 1800-3800 |
| Te mātotorutanga papatipu (kg/m3) | 1300-1400 | 1500-1600 |
1) He tino pai mō ngā oumu nekehanga pāmahana teitei me te iti, ngā kaiwhakahou, ngā kaiwhakawhiti wai, ngā tāke whakakorenga whanariki me ngā oumu methanation i roto i ngā tipu tongi matū, ā, ko tana mahi he hora i te hau me te wai, me te tautoko, te hipoki me te tiaki i ngā whakakorikori.
2) Ka taea hoki te whakamahi i roto i ngā oumu wera me ngā taputapu whakawhiti whakamahana i roto i te umanga maitai.
