Ngā Hua
Maka Tika Rauemi Ātete Matatau Korunuma Mā 280 Mata 320 Mata
Whakaahuatanga Hua
He mea hanga te paura alumina mā kua hanumihia ki te paura alumina iti-konutai tino parakore, mā te rewa i te pāmahana tiketike, te whakamatao kia whakatiotia, kātahi ka kuru. Kei raro i te mana whakahaere pakari te paura waikura konumohe mā kua hanumihia kia mau tonu te tohatoha rahi o te kōpura me te āhua ōrite.
He whāiti te horapa o te rahi o te kōpura o te paura alumina mā kua hanumihia. I muri i te tukatuka āhua, he kōpura tino parakore te paura korundum mā, he koi ngā taha me ngā kokonga, he pai te huri, he kanapa te oro. He nui ake te pai o te huri i ngā mea whakakoi ngohengohe pērā i te silica.
NGĀ ĀHUATANGA MATUA
| Te Taumata Whakakoi | Te Taumata Whakamātao | |||||
| Taonga | Witi | Paura Moroiti | Rahi o te Rōpū | Paura Pai | ||
| Al2O3 (%)≥ | 99 | 99 | 99 | 98.5 | 99 | 99 |
| Fe2O3 (%)≤ | 0.05 | 0.06 | 0.08 | 0.1 | 0.1 | 0.1 |
| SiO2 (%)≤ | 0.26 | 0.28 | 0.30 | 0.40 | 0.35 | 0.35 |
| TiO2 (%)≤ | 0.08 | 0.09 | 0.10 | 0.15 | 0.3 | 0.3 |
| Rahi | 12-80 | 90-150 | 180-220 | 240-4000 | 0-1mm 1-3mm 3-5mm 5-8mm | -180 mata -200 mata -240 mata -320 mata |
| Ngā Āhuatanga Ā-tinana | ||||
| Āhua | Koki | |||
| Tae | Mā | |||
| Te pakeketanga | MOH 9.0 2100-3000kgf/cm2 | |||
| Te Matotoru Tuturu | ≥3.90g/cm3 | |||
| Rauemi Taketake | a-Al2O3 | |||
| Tātari Matū | |||
| Rahi o te witi | Wāhanga | E hiahiatia ana e te Paerewa o GB | Uara Noa o tā Mātou Hua |
| #4 - #80 | Al2O3 | ≥ 99.10% | 99.65% |
| Na2O | ≤ 0.35% | 0.22% | |
| Fe2O3 | - | 0.03% | |
| SiO2 | - | 0.03% | |
| #90 - #150 | Al2O3 | ≥ 99.10% | 99.35% |
| Na2O | ≤ 0.40% | 0.30% | |
| Fe2O3 | - | 0.04% | |
| SiO2 | - | 0.05% | |
| #180 - #220 | Al2O3 | ≥ 98.60% | 99.20% |
| Na2O | ≤ 0.50% | 0.34% | |
| Fe2O3 | - | 0.05% | |
| SiO2 | - | 0.08% | |
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Te Huri me te Whakakanapa
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Te Whakaritenga o te Mata
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Ngā mea whakakākahu
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Te Maka Tika
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Te Whakapūtanga Whakakā
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Ngā mea whakakoi tino pai
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Ngā uku me ngā tāera
Tō Uiui
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