Te whakataki, te tono me te tukanga whakaputa o te kōrunuma mā
Alumina Whakakotahi Ma (WFA)He mea whakakoi horihori te mea nei, he mea hanga ki te paura alumina ahumahi hei rauemi mata matua, ka whakamataohia, ka whakakōkītia i muri i te rewa o te pewa i te pāmahana teitei. Ko tōna wāhanga matua ko te waikura konumohe (Al₂O₃), neke atu i te 99% te parakore. He mā, he mārō, he matotoru, ā, he tino pai te ātete ki te pāmahana teitei, te ātete ki te waikura me ngā āhuatanga whakamahana. Ko tētahi o ngā mea whakakoi matatau e whakamahia whānuitia ana.
1. Whakataki Hua
He momo kōrunuma horihori te kōrunuma mā. Ki te whakatauritea ki te kōrunuma parauri, he iti ake te poke, he pakeke ake, he mā ake te tae, kāore he silica kore utu, ā, kāore he kino ki te tinana tangata. He tino pai mō ngā wā tukatuka me ngā whakaritenga teitei mō te parakore o te karawarawa, te tae me te mahi huri. Ko te pakeke o te kōrunuma mā tae atu ki te 9.0, ko te tuarua anake ki te taimana me te silicon carbide. He pai ōna āhuatanga whakakoi-ake, kāore e ngāwari ki te piri ki te mata o te mea mahi i te wā e huri ana, ā, he tere te marara o te wera. He pai mō ngā tikanga tukatuka maroke me te mākū.
2. Ngā Taupānga Matua
Nā ōna āhuatanga ā-tinana, ā-matū hoki, e whakamahia whānuitia ana te kōrunuma mā i roto i ngā mara papai maha, tae atu ki ēnei āhuatanga e whai ake nei:
Ngā taputapu whakakoi me ngā taputapu huri
E whakamahia ana hei hanga wira huri uku, wira huri kapia, kakahu emery, pepa kirikiri, papa horoi, whakapiri huri, me ētahi atu. He rauemi huri tino pai mō te maitai waro-tiketike, te maitai koranu, te maitai kore waikura, te karāhe, ngā uku me ētahi atu rauemi.
Te pupuhi onepu me te whakakanapa
He pai mō te horoi i te mata whakarewa, te tango waikura, te whakapakari i te mata me te rongoā mārō. Nā te mea he tino pakeke, kāore he paitini, ā, he kino hoki, he maha ngā wā e whakamahia ana mō te pupuhi onepu me te whakakanapa i ngā pokepokea tika me ngā hua kowiri tira.
Ngā rauemi ātete-wera
Ka taea te whakamahi hei konganuku, hei paura pai rānei mō ngā pereki pakari matatau, ngā mea whakarewa, me ngā rauemi whakarewa. He whānuitia te whakamahinga i roto i ngā taiao pāmahana teitei pērā i te maitai, ngā arai oumu whakarewa konganuku kore-ferrous, ngā oumu karāhe, me ētahi atu.
Ahumahi hiko/whatu
E whakamahia ana hei hanga uku parakore-teitei, te huri karāhe whatu, te oro i te papa hapaira LED, te horoi me te huri i te papa silicon semiconductor, me ētahi atu, ā, e hiahiatia ana he paura korundum ma tino pai-teitei.
Whakakī mahi
Whakamahia ana i roto i te rapa, te kirihou, te paninga, te kirikiri uku me ētahi atu ahumahi hei whakapai ake i te ātete ki te kakahu, te pumau wera me te mahi whakamarumaru o ngā rauemi.
3. Tukanga whakaputa
He tino pakari, he pūtaiao hoki te tukanga whakaputa o te kōrundum mā, ā, ko ngā mahi matua e whai ake nei te nuinga:
Te whakarite rauemi mata
Kōwhiria te paura alumina ahumahi parakore-teitei (Al₂O₃≥99%), tātarihia, ka whakamātautau matū i ngā rauemi mata kia tino iti ai te nui o te poke, kia ōrite ai te rahi o te matūriki.
Te rewa o te pewa
Tāpirihia te paura alumina ki roto i te oumu pewa-toru-wāhanga ka whakarewahia ki te pāmahana teitei o te 2000℃. I te wā whakarewa, ka whakamahanahia ngā irahiko kia rewa katoa te alumina, kia tangohia ai ngā poke hei hanga i te rewa kōrunuma parakore.
Te whakatiotanga whakamatao
I muri i te whakamatao o te rewa, ka tio noa hei hanga i ngā tioata kōrunuma ma poraka. Mā te whakamatao puhoi ka āwhina i te whanaketanga o ngā kakano me te pumau o te mahi, he hononga matua tēnei ki te whakarite i te kounga o te kōrunuma ma.
Te kuru me te wehenga aukume
Ka kuruhia ngā tioata kōrunuma kua whakamataotia, ā, ka kuruhia kia angiangi mā ngā taputapu miihini, kātahi ka tangohia ngā poke pēnei i te rino mā te wehenga aukume kaha hei whakarite i te parakore o te hua kua oti.
Te kuru me te tirotiro
Whakamahia ngā mira pōro, ngā mira rere hau me ētahi atu taputapu hei kuru i te kōrunuma mā ki te rahi matūriki e hiahiatia ana, kātahi ka whakamahi i ngā taputapu tātari tino tika hei whakarōpū i te rahi matūriki kia rite ki ngā paerewa o te ao (pēnei i te FEPA, JIS) hei tiki i te onepu, i te paura moroiti rānei o ngā whakaritenga rerekē.
Te whakarōpūtanga me te horoinga pai (i runga i te kaupapa)
Mō ētahi tono teitei, pērā i te paura kōrunuma ma te karaehe hiko me te karaehe whatu, ka mahia te whakarōpūtanga rere hau, te whakapūkara me te horoi ultrasonic hei whakapai ake i te parakore me te tika o te whakahaere i te rahi matūriki.
Te tirotiro kounga me te takai
Me whai i te raupapa o ngā tukanga whakahaere kounga te hua kua oti pērā i te tātari matū (Al₂O₃, Fe₂O₃, Na₂O, me ētahi atu), te kimi i te rahi o te matūriki, te kimi i te mā, me ētahi atu, ā, i muri i te whakamātautau, ka tākaihia kia rite ki ngā hiahia o te kiritaki, ko te tikanga i roto i ngā putea 25kg, i ngā putea tana rānei.
Hei rauemi ahumahi me te mahi tino pai, he mahi nui te korundum mā i roto i te maha o ngā ahumahi. Ehara i te mea he tohu nui noa iho mō ngā mea whakakoi kounga teitei, engari he rauemi taketake matua hoki i roto i ngā mara hangarau teitei pēnei i te miihini tika, ngā uku mahi, me ngā rauemi hiko. I te whanaketanga tonu o te hangarau ahumahi, kei te whakapai tonu hoki ngā whakaritenga kounga o te mākete mō te korundum mā, e akiaki ana hoki i ngā kaihanga ki te arotau tonu i ngā tukanga, te whakapai ake i te mahi hua, me te whakawhanake i te huarahi ki te parakore teitei ake, te rahi matūriki pai ake, me te kounga pumau ake.