I roto i te ao whānui o te whakaputa ahumahi, he maha ngā hononga matua e kore e taea te mahi me te kore he tautoko o ngā rauemi mahi-teitei. I tēnei rā, ka whakaatuhia e mātou he rauemi e whai wāhi nui ana ki ngā ahumahi tuku iho pērā i ngā oumu me ngā pūnaha whakakorenga whanariki –ngā uku karawiti silicon kua whakakōtitia ki te tauhohenga.
He aha te uku silicon carbide?
He rauemi uku matatau te uku karawiti silicon, he mea hanga mai i te silicon me te waro. Ehara i te uku noa, engari he "material meta" me ngā āhuatanga tino pai. He āhuatanga ōna ko te kaha pāmahana teitei, te ātete pai ki te kakahu, te iti o te tauwehenga whānui wera, te pakeke teitei, me te ātete ki te waikura matū, ā, koinei te mea e tū motuhake ai i roto i ngā rauemi maha.
He momo motuhake ngā uku silicon carbide kua whakatōngia ki te tauhohenga, ā, he tino ahurei te tukanga whakarite – tuatahi, ka pēhia ngā matūriki angiangi o te alpha SiC me ngā tāpiringa ki roto i te tinana matomato, kātahi ka pā atu ki te silicon wai i te pāmahana teitei. I tēnei wā, ka pāngia te waro i roto i te para e te tauhohenga matū whakamiharo me te Si kua uru, ka puta he β – SiC, ā, ka piri pūmau ki te α – SiC. I taua wā anō, ka whakakīia ngā pūwero e te silicon kore utu, ā, ka puta he rauemi uku tino matotoru.
Te kokonga o roto i te oumu
He mea tino nui, he mea nui hoki te mahi whakapūtanga tauhohenga o ngā uku silicon carbide i roto i ngā oumu pāmahana-tiketike. Hei tauira, i roto i ngā oumu whakaputa uku pērā i ngā oumu roera, ngā oumu kauhanga, ngā oumu whakawhiti, me ētahi atu, ka hangaia hei wāhanga matua pērā i ngā ringaringa pūwero, ngā roera kurupae whakawhiti, me ngā paipa hau makariri.
Ka taea e te pūwero mura te whakahaere i te taurite pāmahana i roto i te oumu. He āhuatanga ōna o te kaha pāmahana teitei, te ātete ki te waikura, te ātete ki te kakahu, me te ātete ki te whakamatao me te whakamahana tere. E kore e pakaru, e kore hoki e hē te āhua i muri i te whakamahinga pāmahana teitei mō te wā roa, kia mau ai te pāmahana i roto i te oumu. He mea nui mō te tahu i ngā hua uku kounga teitei.
He mea nui ngā mahi a ngā roera kurupae whakawhiti me ngā awa hau makariri mō te tautoko me te whakapūhautanga. Ko ngā āhuatanga o te roera kurupae whakawhiti he pumau pai ki te wera, he ātete ki te waikura, he ātete ki te ngoki i te pāmahana teitei. Kāore e ngāwari te whakapēke me te piko i muri i te whakamahinga roa i ngā pāmahana teitei, kia mau ai te hanganga o roto o te oumu me te kawe rauemi maeneene. Ko te awa hau makariri te kawenga mō te whakahaere i te rere o te hau me te tohatoha pāmahana i roto i te oumu, kia mau ai te mahi noa o te oumu.
Mai i te tirohanga o ngā wāhanga ritenga, he mārama ngā painga o te silicon carbide kua whakatakahia te tauhohenga i roto i te hanga o ngā wāhanga oumu. Nā te mea kāore i rerekē te rahi i mua me muri i te whakataka, ka taea te tukatuka ki tetahi āhua me te rahi i muri i te whakakoi. Ka taea e ngā kaihanga oumu te whakarite i ngā momo āhua me ngā whakaritenga o ngā wāhanga kia rite ki ngā hoahoa oumu me ngā hiahia whakaputa rerekē, kia tutuki ai ngā whakaritenga whakaputa o ngā hua nui me ngā hua uaua, he uaua ki ētahi atu rauemi te whakatutuki.
Raina parepare pakari o te pūnaha desulfurization
I roto i te mara o te tiaki taiao pērā i te tango i te whanariki i roto i ngā tipu hiko, he mahi nui anō hoki tā ngā uku silicon carbide kua whakatōngia, e kitea nuitia ana i roto i te wāhanga matua o ngā pūwero tango i te whanariki. He nui ngā poke i roto i te hau paru e tukuna ana mai i ngā tipu hiko pērā i te hauhā whanariki, ā, he taputapu nui ngā pūwero tango i te whanariki hei tango i ēnei poke.
He tino pai ngā āhuatanga o te pūwero whakakorenga whanariki kua whakatōkia ki te silicon carbide, pērā i te kaha teitei, te pakeke teitei, te ātete ki te waikura, te ātete ki te kakahu, me te ātete ki te pāmahana teitei. He roa te ora ratonga i raro i ngā āhuatanga uaua, kāore e taea te whakarite ki ngā rauemi noa. Ko ngā momo pūwero whakakorenga whanariki e whakamahia whānuitia ana ko ngā pūwero porowhita me ngā pūwero vortex, he rerekē ngā hoahoa me ngā mātāpono mahi, engari ka taea te whakakorenga pai i te whakakorenga whanariki me te whakapā katoa ki te hau paru, kia pai ai te pānga whakakorenga whanariki.
Nā te hoahoa hanganga ahurei, ka meinga e te pūwero porowhita te wai i roto i te paparanga o waho kia pā ki te mata porowhita i tētahi koki o te pūwero, ka whakarerekē i te ahunga rehu ka wehe atu i te pūwero, ka hanga he papa kohu kōniko totoka, ka taea te whakarato i ngā koki rehu rerekē, ā, he pai tonu te mimiti i raro i te pēhanga iti rawa. Mā te pūwero vortex ka taea e te paru te tomo ki roto i te rūma hurihuri o te pūwero mai i te ahunga pātata, kātahi ka panaia mai i te kōhao i ngā koki tika ki te ahunga tomo. He iti, he ōrite te rehu, ā, he nui te hongere vortex, he uaua ki te aukati.
Mō ngā wāhanga kua whakaritea mō ngā pūnaha whakakorenga pūngāwerewere, ka taea e te silicon carbide kua whakakōkīhia te tauhohenga te whakarite i te āhua, te rahi, me ngā āhuatanga rehu e tino tika ana, kia rite ki ngā tukanga whakakorenga pūngāwerewere rerekē, ngā tere rere hau paru, ngā kukū, me ētahi atu tawhā, kia pai ai te mahi a te pūnaha whakakorenga pūngāwerewere, kia tutuki ai hoki ngā whakaritenga taiao e tino kaha haere ana.
He mea nui te mahi a ngā uku silicon carbide kua whakakāhia ki te tauhohenga i roto i ngā mara ahumahi tuku iho pērā i ngā oumu me ngā pūnaha whakakorenga whanariki nā ō rātou āhuatanga ahurei me ngā painga ka taea te whakarite. Ka whakaratohia e rātou he taurangi pakari mō te mahi pai, pumau, me te taiao o te whakaputa ahumahi, ā, ka werohia he kaha ki te whakapai ake me te whanaketanga hangarau o ngā ahumahi tuku iho.
Wā tuku: Pipiri-07-2025