I roto i ngā āhuatanga ahumahi o ngā oumu kauhanga me ngā oumu paipa, he rite te taiao pāmahana teitei ki te "maunga mura" - me tu atu ngā wāhanga taputapu ki te tunu roa i runga ake i te 800 ℃, me te ātete hoki ki te mimiti o ngā hau waikura me ngā hau waikawa. He ngawari ngā rauemi whakarewa tuku iho ki te ngohengohe me te whakarerekē i te āhua i roto i tēnei taiao, ka hua ake he whakahekenga ohorere o te roa o te ora. Heoi,te tokotoko roera kurupae tapawhā i hangaia ki te silicon carbide (SiC)He rite te rauemi ki te "whawhai pāmahana teitei", e whakawhirinaki ana ki tōna ira ātete wera ā-roto, ka noho hei "punga moana" mō te mahi pumau o ngā oumu pāmahana teitei.
Ko te take e taea ai e ngā roera kurupae tapawhā silicon carbide te noho hei "kaitākaro matatau" i roto i te mara pāmahana-tiketike nā ō rātou āhuatanga rauemi ahurei:
1. Hangaia he "ārai wera" i hangaia e koe anō
Ina neke atu te pāmahana i te 1200 ℃, ka puta he kiriata waikura matotoru o te hauhā silicon (SiO₂) ki runga i te mata o te silicon carbide. E kore e taea e tēnei paparanga "pūeru mārama" te wehe noa i te pānga tika o te pāmahana teitei ki te papa, engari ka ātete hoki i te urunga o ngā hau waikawa, ka tutuki ai te "parenga takirua ki te waikura pāmahana teitei".
2. Ka wera haere, ka kaha haere
He rerekē ki te āhua o ngā rauemi whakarewa e ngohengohe ana ina pāngia e te wera, ehara i te mea ka mau tonu te kaha piko o te silicon carbide i roto i te awhe pāmahana teitei o te 800 ℃ -1350 ℃, engari ka whakaatu hoki i ētahi whakapainga. Mā tēnei āhuatanga ā-tinana "e whakahē ana i te ia o te wā" ka taea e te pae roera te noho pakari i roto i ngā taiao pāmahana teitei, ka karo i te hinganga o te hanganga i puta mai i te ngohengohe.
3. Te "rangatira whakawhiti" wera
E whā ngā wā o te kawe wera o te silicon carbide i tō te maitai, ka taea e tēnei te hora tere me te taurite i te wera ā-rohe pērā i te "huarahi wera", ka karo i te kohikohinga o ngā "wāhi wera" i roto i te oumu. Ehara i te mea ka tiaki noa i te roera tonu tēnei āhuatanga, engari ka pupuri hoki i te pumau o te pāmahana tauhohenga desulfurization, ka whakapai ake i te whai huatanga whānui.
I whānau mai mō ngā āhuatanga pāmahana teitei ā-ahumahi
Nā te ātete teitei o ngā roera kurupae tapawhā silicon carbide i te pāmahana teitei, ka tino pai rātou i roto i ngā āhuatanga desulfurization pāmahana teitei pērā i ngā kohua hiko wera, te sintering maitai, me te pakaru matū. Whai muri i te whakamahi i tēnei wāhanga, ka taea e ngā umanga te whakaiti i te auau o te kati me te tiaki pāmahana teitei, me te whakaroa i te roa o te ratonga o ngā taputapu ki ētahi wā i tērā o ngā rauemi tuku iho, ka tutuki ai te "mahana teitei me te kore kati, te tiaki taiao me te kore whakamatao".
Hei umanga auaha e tohunga ana ki te rangahau me te whakawhanake i ngā rauemi uku silicon carbide, e mōhio ana mātou ki ngā āhuatanga uaua o ngā taputapu i raro i ngā āhuatanga mahi tino uaua. Ko ia roera kurupae tapawhā silicon carbide e whakaatu ana i te tūhuratanga tino pai o te pūtaiao rauemi. I ngā rā kei te heke mai, ka aro tonu mātou ki te "ātete pāmahana teitei" hei huarahi matua, ā, ka whakamahia te mana o te hangarau hei tiaki i te rārangi parepare matomato o te whakaputanga ahumahi.
Wā tuku: 24 Paenga-whāwhā 2025