Tono
Ngā uku karawiti siliconHe mahi nui tā rātou i roto i ngā mahi oumu ahumahi puta noa i ngā rāngai maha. Ko te tono matua ko ngā pūwero tahu silicon carbide, e whakamahia whānuitia ana i roto i ngā pūnaha tahunga pāmahana-tiketike mō te tukatuka whakarewa, te hanga karāhe, me te tahu uku nā te mea he pumau te hanganga i roto i ngā taiao wera nui. Ko tētahi atu whakamahinga matua ko ngā roera silicon carbide, e mahi ana hei tautoko me te kawe i ngā wāhanga i roto i ngā oumu tonu, inā koa i roto i te sintering o ngā uku matatau, ngā wāhanga hiko, me te karāhe tino tika. Hei tāpiri, ka whakamahia ngā uku SiC hei wāhanga hanganga pērā i ngā kurupae, ngā reera, me ngā kaiwhakatakoto i roto i ngā oumu oumu, ka roa te wā e pāngia ana e ngā hau kaha me te ahotea miihini. Ko tā rātou whakaurunga ki ngā waeine whakawhiti wera mō ngā pūnaha whakaora wera para e whakaatu ana i tō rātou whai huatanga ki te whakahaere wera e pā ana ki te oumu. Ko ēnei tono e whakaatu ana i te urutau o te silicon carbide ki ngā tono whakahaere rerekē i roto i ngā hangarau whakamahana ahumahi.
Ko ngā tono matua mō te oumu ahumahi ko:
1.Ngā pūwero mura waro silicon
Ngā Painga Hangarau
1. Te Pūmautanga Wera Tino Pai
- Te pūwāhi rewa: 2,730°C (e mau tonu ana i ngā taiao pāmahana tino teitei)
- Ātete ki te waikura tae atu ki te 1,600°C i te hau (ārai i te pirau i roto i ngā āhuarangi waikura)
2. Te Arahi Wera Pai Rawa
- 150 W/(m·K) te kawe wera i te pāmahana rūma (e āhei ai te whakawhiti wera tere me te tohatoha pāmahana ōrite)
- Ka whakaiti i te whakapaunga pūngao mā te 20–30% ki te whakataurite ki ngā rauemi ātete ahi tuku iho.
3. Ātete Ru Wera Kore-Whakataurite
- Ka ātete ki ngā piki me ngā heke tere o te pāmahana neke atu i te 500°C/hekona (he mea tino pai mō ngā tukanga whakamahana/whakamatao huringa).
- Ka pupuri i te pumau o te hanganga i raro i te huringa wera (ārai i te ngatata me te whakarerekētanga).
4. Te Kaha Mīhini Teitei i ngā Pāmahana Teitei
- Ka mau tonu te 90% o te kaha o te pāmahana rūma i te 1,400°C (he mea nui mō ngā wāhanga oumu e mau ana i te kawenga).
- Ko te pakeke Mohs he 9.5 (ātete ki te kakahu mai i ngā rauemi whakakoi i roto i ngā taiao oumu).
| Taonga | Karāpi Hiraka (SiC) | Arumina (Al₂O₃) | Ngā konganuku ātete (hei tauira, ngā koranu i ahu mai i te Ni) | Ngā mea whakakākahu tuku iho (hei tauira, pereki ahi) |
| Te pāmahana mōrahi | Tae atu ki te 1600°C+ | 1500°C | 1200°C (ka ngawari ake i runga) | 1400–1600°C (ka rerekē) |
| Te Arahi Wera | Teitei (120–200 W/m·K) | Iti (~30 W/m·K) | Taurite (~15–50 W/m·K) | Tino Iti (<2 W/m·K) |
| Ātete Ru Wera | Tino pai | Kino ki te Waenga | He āhua noa (he āwhina te ngāwari) | Kino (ngā pakaru i raro i te tere o te ΔT) |
| Te Kaha Mīhini | Ka mau tonu te kaha i ngā pāmahana teitei | Ka heke i runga ake i te 1200°C | Ka ngoikore i ngā pāmahana teitei | Iti (pakaru, pūngāwerewere) |
| Ātete ki te Waikura | Ātete ki ngā waikawa, ngā kawakore, ngā konganuku rewa/para | Waenga (ka whakaekea e ngā waikawa/kawe kaha) | Ngāwari ki te waikura/whakapūngao i ngā pāmahana teitei | Ka pirau i roto i ngā āhuarangi waikura |
| Te roanga o te ora | Roa (ātete ki te kakahu/waikura) | He āhua noa (ngā pakaru i raro i te huringa wera) | Poto (ka waikura/ka ngokingoki) | Poto (te pakarukaru, te horo) |
| Te Whai Hua o te Pūngao | Teitei (tere te whakawhiti wera) | Iti (kore te kawe wera) | Waenga (he kawe hiko engari he waikura) | Tino Iti (ārai) |
Take Ahumahi
I tutuki i tētahi umanga tukatuka whakarewa matua ngā whakapainga whakahaere nui i muri i te whakauru i ngā uku silicon carbide (SiC) ki roto i āna pūnaha oumu pāmahana-tiketike. Mā te whakakapi i ngā wāhanga alumina tuku iho kingā pūwero mura silicon carbide, i pūrongo te umanga:
✅ 40% te iti iho o ngā utu tiaki ā-tau nā te iti iho o te pirau o ngā wāhanga i roto i ngā taiao 1500°C+.
✅ 20% te pikinga o te wā mahi whakaputa, nā te ātete o te SiC ki te ru wera me te waikura mai i te para rewa.
✅ Te whakataurite ki ngā paerewa whakahaere pūngao ISO 50001, me te whakamahi i te kawe wera teitei a SiC hei whakapai ake i te whai huatanga o te wahie mā te 15–20%.
Wā tuku: Maehe-21-2025