I tēnei wā e tautuhia ana e te tika, te pakari, me te whai huatanga te ahunga whakamua o te ahumahi,waea nichromekei te tū tonu hei tūāpapa mō te auahatanga wera. He mea tito te nuinga o te nikara (55–78%) me te konukōmiuma (15–23%), me te iti o te rino me te konukōnamu, ko ngā āhuatanga ahurei o tēnei koranu he mea nui rawa atu i roto i ngā ahumahi katoa—mai i ngā taputapu whare ki te hangarau rererangi. I konei, ka tūhuratia e mātou ngā tono kanorau o te waea nikara me tōna tūranga ki te hanga i ngā hangarau whakamahana hou.

 

Ngā Āhuatanga Matua e Ārahi ana i te Whānuitanga o te Nichrome

Ko te uara o te nichrome kei roto i tōna taurite tino pai o ngā āhuatanga ā-tinana me te hiko. Me te ātete o te 1.0–1.1×10⁻⁶ Ω·m me te ira rewa neke atu i te 1400°C315, ka huri pai i te pūngao hiko ki te wera me te ātete anō hoki i te waikura me te waikura ahakoa i raro i ngā āhuatanga tino kino. Ko tōna āhua kore-aukume, tōna ngāwari, me te iti o te horapa wera ka whakarei ake i tōna āheinga urutau315. Mā ēnei āhuatanga ka whakarite i te mahi pumau i roto i ngā taiao e hiahia ana kia pono, mai i ngā oumu ahumahi pāmahana teitei ki ngā taputapu hauora tino tika.

 

Ngā Whakamahinga Matua o te Waea Nichrome

1. Ngā Taputapu Whare

Ko te waea nichrome te poutokomanawa o ngā taputapu whakamahana o ia rā. Ko ngā tōstare, ngā whakamaroke makawe, ngā oumu, me ngā ipu hiko e whakawhirinaki ana ki tōna kaha ki te whakaputa wera tere, ōrite. Hei tauira,nichrome 60e whakamahia whānuitia ana i roto i ngā taputapu wera-ngawari pērā i ngā oumu tunu me ngā whakamahana rokiroki, ko te nichrome 80 (Ni80Cr20) he tino pai i roto i ngā tono kaha-tiketike pērā i ngā whakamahana wai me ngā rino whakapiri nā te mea he pai ake te piri o te waikura me te roa o te ora915.

2. Ngā Tukanga Ahumahi me te Hanga

I roto i ngā taiao ahumahi, ka whakakahangia ngā oumu hiko, ngā oumu, me ngā taputapu tukatuka wera e te waea nichrome. Nā tōna ātete ngoki—e pupuri ana i te hanganga pumau i raro i te ahotea roa i ngā pāmahana neke atu i te 400°C—he mea tino pai mō te whakamahana, te rewa, me te maimoatanga wera315. Ka whakamahia e ngā ahumahi pēnei i te whakarewa me te uku ngā rīpene nichrome me ngā koiri hei pupuri i te pumau ki te whakaiti i te hau, kia kore ai e puta ngā take pēnei i te "pirau matomato" e kitea ana i roto i ētahi atu koranu9.

 

3. Ngā Pūnaha Rererangi me ngā Pūnaha Motuka

Ka horapa te pono o Nichrome ki ngā taiao uaua pērā i ngā pūnaha tango hukapapa rererangi, ngā pūoko miihini, me ngā whakamahana kāpini. Ko tōna kaha ki te tu atu i te huringa wera me ngā āhuatanga uaua ka whakarite i te haumaru me te whai huatanga o ngā wāhanga nui15. Ko ngā tono motuka ko ngā whakamahana nohoanga me ngā taura tango hukapapa, ko ngā momo nichrome 30 me 40 e whakarato ana i te whakamahana roa, penapena hiko9.

4. Ngā Taputapu Hauora me ngā Taputapu Taiwhanga

I roto i te hauora, ka taea e te waea nichrome te whakahaere tika i te wera i roto i ngā taputapu pokanga, ngā papa whakamahana, me ngā taputapu whakamate. Ka whakamahia e ngā taiwhanga tōna kore mahi mō ngā whakamātautau mura me te mura mamao o ngā matū tauhohe, ka whakaiti i ngā mōrearea poke715.

5. Ngā Auahatanga Hou me ngā Otinga Ritenga

Ko ngā whanaketanga o ngā koranu nichrome e aro ana ki te whakarei ake i te whai huatanga mā roto i ngā hanganga kua whakatikatikaina me ngā tikanga hanga. Hei tauira, mā te rewa i roto i te korehau ka puta he tohu pēnei i te Ni80Cr20-VI, i arotauhia mō ngā taputapu hiko wera nui-pono3. Hei tāpiri, ko te tūranga o te nichrome i roto i ngā taputapu penapena-pūngao me ngā paninga rehu wera e whakaatu ana i tōna pūmanawa i roto i ngā mahi ahumahi pumau15.

 

Te Kōwhiri i te Waea Nichrome Tika

Ko te whiriwhiri i te taumata me te ine e tika ana me arotake i ngā pāmahana whakahaere, ngā āhuatanga taiao, me ngā whakatakotoranga hiko. Ko ngā waea angiangi (ine teitei ake) ka pai mō ngā hiahia ātete teitei, ko ngā momo matotoru ia ka taea te whakahaere i ngā kawenga iahiko nui ake15. Mō ngā taiao tino kino, ka tukuna e te nichrome 70 me te 80 te roa o te mau, ko te nichrome 20 ia ka whakataurite i te utu me te mahi mō ngā pito hiko9.

 

Ngā Whakaaro mō te Haumaru me te Oranga Tonutanga

Ahakoa ka whakaitihia e te ātete wera o te nichrome ngā hiahia tiaki, he mea nui tonu te whakahaere tika. Mā te whakamarumaru, ngā kaiwhakahaere pāmahana, me ngā tirotiro auau ka whakaitihia ngā mōrearea o te wera nui me ngā tūponotanga hiko15. Heoi anō, ko tōna roa me tōna āheinga ki te hangarua e hangai ana ki ngā mahi a te ao ki te whakaiti i ngā para ahumahi.

 

Mō Tā Mātou Kamupene
Hei kaiārahi i roto i ngā otinga koranu matatau, he tohunga mātou ki te hanga waea nichrome mahi teitei kua whakaritea mō ngā tono kanorau. Ka whakamahia e ā mātou whare hou te hangarau tika me te mana kounga pakari hei tuku koranu e eke ana ki ngā paerewa ahumahi. Mai i ngā huānga whakamahana ā-rangi ki ngā hoahoa ātete ritenga, ka akiakihia e ā mātou hua te auahatanga puta noa i ngā rāngai.

Nā te maha o ngā whakamahinga o te waea nichrome, ka whakaūtia tōna mana hei rauemi nui i roto i te hangarau hou. I te whanaketanga o ngā ahumahi, ka whanake anō hoki ōna tono—e akiakihia ana e ngā whanaketanga o te pūtaiao rauemi me te whakapau kaha ki te pumau. Mō ngā otinga nichrome kua whakaritea kia tutuki ai ō hiahia hangarau me te whakahaere, whakapā mai ki tā mātou tīma i tēnei rā.