Te takoha ahurei o te paura alumina i roto i ngā rauemi aukume
Ina wetewetehia e koe tētahi motuka servo tere-teitei, tētahi waeine taraiwa kaha rānei i runga i tētahi waka hiko hou, ka kitea e koe ko ngā rauemi aukume tino tika kei te pūtake tonu. Ina kōrero ngā kaihangarau mō te kaha akiaki me te kaha aukume toenga o ngā aukume, he iti noa te hunga e kite ana he paura ma noa iho,paura konumohe(Al₂O₃), kei te takaro puku i te tūranga o te "toa i muri i ngā whakaaturanga". Kāore he aukume, engari ka taea e ia te whakarerekē i te mahi a ngā rauemi aukume; kāore e kawe hiko, engari he pānga nui ki te whai huatanga o te huringa o te iahiko. I roto i te ahumahi hou e whai ana i ngā āhuatanga aukume tino pai, kei te kitea whānuitia te takoha ahurei o te paura alumina.
I roto i te kingitanga o ngā ferrite, he "tohunga makutu rohe witi"
I a ia e hikoi ana ki roto i tētahi awheawhe hanga ferrite ngohengohe nui, ka kī tonu te hau i te kakara motuhake o te whakamahana wera nui. He maha ngā kōrero a Old Zhang, he tohunga mahi toi i te raina hanga: "I mua, ko te hanga ferrite manganese-konutea he rite ki te tunu parāoa. Mena he kino ake te wera, ka 'matoto' ngā pūwero i roto, ā, kāore e heke te ngaromanga." I ēnei rā, he iti noa te paura alumina e whakaurua ana ki roto i te tauira, ā, he tino rerekē te āhuatanga.
Ko te mahi matua o te paura alumina i konei ka taea te kī ko te "hangarau rohe witi": he ōrite te tohatoha ki ngā rohe i waenga i ngā witi ferrite. Whakaarohia he maha ngā witi iti e tū tata ana, ā, ko ō rātou hononga he maha ngā hononga ngoikore o ngā āhuatanga aukume me ngā "wāhi tino pāngia" o te ngaronga aukume. Ko te paura alumina tino pai, tino parakore (te nuinga o te taumata iti iho i te maikorona) kua whakauruhia ki roto i ēnei rohe rohe witi. He rite ki ngā "pā" iti e kore e taea te tatau, e aukati ana i te tipu nui o ngā witi i te wā e whakamahana ana i te pāmahana teitei, ka iti ake te rahi o te witi, ka tohatoha ōrite.
I te papa pakanga o te aukumetanga mārō, he "whakaū hanganga"
Tahuri tō aro ki te ao o ngā aukume tuturu neodymium rino boron (NdFeB) mahi-teitei. Ko tēnei rauemi, e mōhiotia ana ko te "kingi o ngā aukume", he tino kaha te kaha, ā, koia te pūtake hiko matua mō te taraiwa i ngā waka hiko hou, ngā tāhū hau, me ngā taputapu hauora tino tika. Heoi, he wero nui kei mua: He ngāwari te NdFeB ki te "whakakore i te aukume" i ngā pāmahana teitei, ā, he ngawari te āhua o roto o te neodymium, ā, kāore i te pumau te hanganga.
I tēnei wā, ka puta anō he iti noa iho o te paura alumina, e mahi ana i te mahi matua o te "whakarei hanganga". I te wā o te tukanga sintering o te NdFeB, ka whakaurua te paura alumina tino pai. Kāore e tomo ki te whatunga wāhanga matua i roto i ngā rahinga nui, engari ka tohatohahia motuhaketia ki ngā rohe kōhatu, inā koa ko ngā wāhi wāhanga ngoikore-wairangi.
Kei te taha mua o ngā aukume hiato, he "kaiwhakarite maha-āhua"
Kei te whanake tonu te ao o ngā rauemi aukume. Kei te kukumehia te aro e tētahi hanganga aukume hiato (pērā i te raupapa Halbach) e whakakotahi ana i te kaha o te aukume whakapūmau me ngā āhuatanga ngaronga iti o ngā rauemi aukume ngohengohe (pērā i ngā matua paura rino) me ngā painga kaha kaha o ngā rauemi aukume tuturu. I roto i tēnei momo hoahoa auaha, kua kitea e te paura alumina tētahi taumata hou.
Ina hiahiatia te whakaranu i ngā paura aukume o ngā āhuatanga rerekē (ahakoa ngā paura mahi kore-aukume) me te whakahaere tika i te whakamarumaru me te kaha ā-pūkaha o te wāhanga whakamutunga, ka noho te paura alumina hei paninga whakamarumaru, hei rauemi whakakī rānei, nā te mea he pai rawa te whakamarumaru, te koretake o te matū, me te hototahitanga pai ki ngā momo rauemi.
Te māramatanga o te heke mai: he ngawari ake, he mātau ake
Te tono opaura konumohei roto i te mara ongā rauemi aukumekāore anō kia oti. I te hohonu haere o te rangahau, kua whakapau kaha ngā kaipūtaiao ki te tūhura i ngā ture tauine huna:
Te ine-nano me te whakakī tika: Whakamahia te paura alumina ine-nano he rahi ōrite ake, he pai ake te marara, ā, tūhuratia hoki tōna tikanga whakahaere tika o te whakapiri pakitara rohe aukume ki te ine ngota.
Ko te paura alumina, ko tēnei waikura noa iho nō te whenua, i raro i te māramatanga o te whakaaro nui o te tangata, e mahi ana i te makutu kitea i roto i te ao aukume e kore e kitea. Kāore e whakaputa i tētahi papa aukume, engari e whakatakoto ana i te ara mō te tuku pumau me te whai hua o te papa aukume; kāore e akiaki tika i te taputapu, engari e werohia ana te kaha ake ki roto i te rauemi aukume matua o te taputapu taraiwa. I te heke mai o te whai i te pūngao matomato, te taraiwa hiko whai hua me te tirohanga atamai, ko te takoha ahurei me te mea nui o te paura alumina i roto i ngā rauemi aukume ka haere tonu ki te whakarato tautoko pakari me te puku mō te whanaketanga o te pūtaiao me te hangarau. E whakamahara ana i a tātou i roto i te symphony nui o te auahatanga pūtaiao me te hangarau, ko ngā oro tino taketake kei roto te mana hohonu - ina tūtaki te pūtaiao me te mahi toi, ka tiaho hoki ngā rauemi noa me te māramatanga whakamiharo.