I te rapunga mō tētahi whakakapinga mōwaea nichrome, he mea nui kia whakaarohia ngā āhuatanga matua e tino hiahiatia ai te nichrome: te ātete ki te pāmahana teitei, te ātete hiko pumau, te ātete ki te waikura, me te pakari. Ahakoa he maha ngā rauemi e tata ana, kāore tetahi e rite ana ki te taurite ahurei o te mahi a te nichrome—e waiho ana ā mātou hua waea nichrome hei whiringa pono mō ngā tono nui.
Ko tētahi atu huarahi noa ko te waea kanthal, hekoranu rino-konupora-konumoheHe tino pai a Kanthal i roto i ngā taiao pāmahana teitei, e tu atu ana i ngā pāmahana tae atu ki te 1,400°C, he teitei ake i ētahi momo nichrome. Heoi, he pakarukaru ake, he iti ake te ngāwari ki te whakakorikori, ā, he uaua ki te hanga hei hoahoa uaua. I roto i ngā tono e hiahia ana ki te ngāwari, pērā i ngā wāhanga whakamahana iti i roto i ngā hikohiko, he maha ngā wā ka hē te kanthal, engari ko te ngāwari o te nichrome ka taea te hanga tika me te kore e pakaru.
Ko te waea parahi-nikara (Cu-Ni) tētahi atu mea e pai ana mō tōna ātete ki te waikura me tōna ātete ngawari. Engari he uaua te Cu-Ni ki te wera nui, ka tere te waikura i runga ake i te 300°C, ka whakawhāiti i tōna whakamahinga i roto i ngā āhuatanga wera nui pērā i ngā oumu ahumahi, i ngā koiri whakamahana rānei. He rerekē, ka mau tonu te pumau o te nikara ahakoa i te 1,200°C, ka nui ake te whakamahinga mō ngā mahi pāmahana teitei.
He tino ātete te waea tungsten ki te wera, ka taea te tu atu i ngā pāmahana tino kino tae atu ki te 3,422°C. Heoi, he tino pakarukaru, ā, he iti te ātete hiko, me nui ake ngā iahiko hei whakaputa wera. Nā tēnei kāore e whai hua mō te nuinga o ngā tono whakamahana kei reira te whai huatanga o te pūngao me te ngāwari o te whakamahi—ngā wāhi e tino kitea ana te nichrome, me tōna ātete pai me te ngāwari ki te mahi.
E whakaarohia ana te waea kowiri tira mō tōna utu whaitake me tōna ātete ki te waikura. Heoi, he iti ake tōna ātete i te nichrome, arā, he iti ake te wera e puta ana mō ia roa, me te hiahia kia matotoru ake ngā ine, kia teitei ake rānei ngā ngaohiko hei taurite i te putanga o te nichrome. I roto i te wā, ka rerekē te āhua o te kowiri tira i raro i te wera roa, ka whakaiti i tōna roa ki te whakataurite ki te pumau roa o te nichrome.
Ka aro atu ā mātou hua waea nichrome ki ēnei herenga o ngā whakakapinga. Kei te wātea i roto i ngā momo taumata (pēnei i teNiCr 80/20), e tuku ana i te ātete tika mō te putanga wera pumau, he ngāwari te hanga, ā, he ātete waikura pai rawa atu i ngā pāmahana teitei. Ahakoa mō ngā wāhanga whakamahana i roto i ngā taputapu, ngā taputapu taiwhanga, ngā oumu ahumahi rānei, ka tukuna e tā mātou waea nichrome te mahi pono, te whai hua o te pūngao, me te pakari e uaua ana ki te tāruarua e ngā momo kē atu.
Ko te whiriwhiri i te waea tika ko te whakarite i te ranunga ahurei o ngā āhuatanga e whakaratohia ana e te nichrome anake. Kua hangaia ā mātou hua kia tutuki ai ngā paerewa kounga tino pakari, kia pai ake ai te mahi me te roa o te ora o ngā mea whakakapi—he mea mohio tēnei mō ō hiahia whakamahana.
Wā tuku: Hepetema-16-2025
