Pūwero Korehau Paerewa e Hangai Ana ki te Arumina – Te Pakari Teitei mō te Mīhini Tika
He mea hanga tēnei pūwero korehau i ahu mai i te alumina mai i te 99.8% Al₂O₃, e tuku ana i tētahi mata maeneene kāore he pore me ngā tauira awaawa korehau ritenga. Ka whakarato i te pakari tino pai (te modulus a Young 380 GPa) me te papatahi (≤3 μm), he mea tino pai mō te huri tika, te whakapiri, me te tapatapahi i ngā papa haurua-ira me ngā wāhanga whatu. Mā te kawe wera teitei o te rauemi (32 W/m·k) ka whakarite kia ōrite te pāmahana i te wā e tukatukahia ana.
Ngā Whakatakotoranga(i runga i te 99.8% Al₂O₃):
| Taonga | Uara |
| Rauemi | 99.8% Arumina (Ai) |
| Kiato | 3.93 karamu/cm³ |
| Kaha Whakapiko | 361 MPa |
| Te Pakari o Vickers | 16 GPa |
| Te Tauwehenga o te Rangatahi | 380 GPa |
| Te Arahi Wera | 32 W/m·k |
| Papatahi | ≤3 μm (neke atu i te 200mm) |
| Te Pākari o te Mata (taha o te tītaha) | Ra ≤0.4 μm |
| Te Mahana Whakahaere Mōrahi | 800°C |
Ngā tono:
- · Te huri i te taha whakamuri o te anga (pakaru, pai hoki)
- · Te tapahi tika i ngā rauemi pakarukaru
- · Te whakakī i ngā papa uku
- · Te whakakanapa i te arotahi whatu
Te Hanga:
Te whakakoi tika i ngā taha e rua → te haehae taimana (whiringa kore) → te whakaawhiwhi taha → te horoinga ultrasonic → te tirotiro papatahi 100% me te ine whakawhiti laser.
Angā painga:
- · Mā te tautoko pakari ka whakaitihia te piko i raro i te kawenga
- · Kāore he matūriki e puta mai i te hanganga porous
- · Ngāwari ki te horoi (hototahi ki te whakarewa-ūkui)
- · Ngā awaawa korehau ka taea te whakarite (ngā tauira porowhita, porowhita, tauira ritenga)
Ngā Rahi e Wātea ana:
Porowhita: 100mm, 150mm, 200mm, 300mm; tapawhā/tapawhā hāngai mēnā ka tonoa.
Kei a mātou anō ngā momo whakarewa hei whakanui ake i te kaha ā-mīhini.
