He whānuitia te whakamahinga o ngā waea koranu nikara-kōromiuma (Nichrome) i roto i ngā mara whakamahana, hiko, me ngā mara ahumahi nā te mea he tino pai te ātete ki te pāmahana teitei me te pumau o te mahi hiko. I roto i ēnei,Nicr7030meNicr8020ko ngā tauira e rua e tino rongonui ana, engari he rerekētanga nui kei roto i te hanganga, te mahi, me ngā āhuatanga tono. Kei raro nei he whakatairite taipitopito hei āwhina i a koe ki te whakatau hoko whai whakaaro:

Ahu Whakataurite	Nicr7030	Nicr8020	Ētahi atu Tauira Noa (hei tauira, Nicr6040)
Te Hanganga Matū	70% Nikara + 30% Konukōmiuma	80% Nikara + 20% Konukōmiuma	60% Nikara + 40% Konukōmiuma
Te Pāmahana Whakahaere Tonu Mōrahi	1250°C (Pikitanga poto: 1400°C)	1300°C (Pikitanga poto: 1450°C)	1150°C (Pikitanga poto: 1350°C)
Ātete Hiko (20°C)	1.18 Ω·mm²/m	1.40 Ω·mm²/m	1.05 Ω·mm²/m
Te ngāwari (Te roa i te wā e whati ana)	≥25%	≥15%	≥20%
Ātete Waikura	Tino pai (kiriata Cr₂O₃ matotoru)	Pai (kiriata waikura matotoru ake)	Pai (ka ngawari te tihore i ngā pāmahana teitei)
Te āheinga whakarewa	Pai rawa atu (he ngāwari ki te whakarewa mā ngā tikanga noa)	Waenga (me whakahaere tika i ngā tawhā)	Waenga
Te Whai Hua o te Utu	Teitei (te mahi taurite me te utu)	Waenga (ka piki ake te utu mēnā he nui ake te nikara)	Iti (whāiti te whānuitanga o te tono)
Ngā horopaki tono noa	Ngā taputapu whare, whakamahana ahumahi, whakamahana motuka, hikohiko tino tika	Ngā oumu ahumahi pāmahana teitei, ngā taputapu whakamahana motuhake	Ngā taputapu whakamahana pāmahana-iti, ngā ātete whānui

Tātaritanga Rerekētanga Taipitopito

1. Te Hanganga Matū me te Mahi Matua

Ko te rerekētanga matua kei roto i te ōwehenga nikara-konukōmiuma: Kei roto i te Nicr7030 te 30% konukōmiuma (teitei ake i te 20%) o te Nicr8020, e whakarei ake ana i tōna ngāwari me tōna āheinga whakarewa. Mā te roanga i te whatinga o te ≥25%, ka taea te kume i te Nicr7030 ki ngā waea tino pai (ki raro ki te 0.01mm) ka piko rānei ki ngā āhua uaua, he mea tino pai mō ngā hua e hiahia ana ki te tukatuka tika (hei tauira, ngā waea whakamahana nohoanga motuka, ngā pūoko hiko iti).

He rerekē, ko te nui ake o te nikara o Nicr8020 (80%) ka whakapai ake i tōna pumau i te pāmahana teitei, ka taea ai te mahi tonu i te 1300°C—50°C teitei ake i te Nicr7030. Heoi, ko te utu mō tēnei ko te iti o te ngāwari (≥15%) anake, ka kore e pai mō ngā tukanga piko, hanga rānei. Ko ētahi atu tauira pērā i te Nicr6040 he iti ake te nui o te nikara, ka hua ake he iti ake te ātete me te ātete pāmahana, ka whakawhāiti i tā rātou whakamahinga ki ngā āhuatanga iti te tono.

2. Ātete me te Whai Hua Pūngao

Ka pā tika te ātete ki te pai o te whakamahana me te hoahoa o ngā wāhanga. He nui ake te ātete o Nicr8020 (1.40 Ω·mm²/m), ko te tikanga he nui ake te wera e whakaputaina ana e ia mō ia roa i raro i te iahiko kotahi, e pai ai mō ngā wāhanga whakamahana kaha-teitei kiato (hei tauira, ngā oumu whakamahana pāmahana-teitei).

Mā te ātete ā-taurite o Nicr7030 (1.18 Ω·mm²/m) ka taurite te whakaputanga wera me te whakapaunga pūngao. Mō te nuinga o ngā tono ahumahi me ngā tono kaihoko (hei tauira, ngā oumu, ngā papa whakamahana), ka whakaratohia he mana whakamahana e ranea ana, me te whakaiti i te maumau pūngao. Hei tāpiri, mā tōna ātete pumau (±0.5% te manawanui) ka whakarite kia rite tonu te mahi mō te whakamahinga roa, kia kore ai e rerekē te pāmahana.

3. Ātete Waikura me te Ora Ratonga

Ka hangaia e Nicr7030 me Nicr8020 he kiriata tiaki Cr₂O₃ i ngā pāmahana teitei, engari nā te nui ake o te chromium o Nicr7030 ka hangaia he kiriata matotoru ake, he pakari ake. Mā tēnei ka ātete ki te "pirau matomato" (te waikura intergranular) i roto i ngā hau makuku, whakaiti rānei, ka roa ake tōna ora mahi ki te 8000+ hāora (20% te roa atu i a Nicr8020 i roto i ngā taiao uaua).

He iti ake te ihirangi chromium o te Nicr6040, engari he iti ake te pumau o te kiriata waikura ka ngawari te tihore i ngā pāmahana neke atu i te 1000°C, ka poto ake te ora o te mahi me te piki ake o ngā utu tiaki.

4. Te Utu me te Āheinga o te Whakamahinga

He pai ake te utu o te Nicr7030: nā te iti o te ihirangi nikara (ki te whakaritea ki te Nicr8020) ka whakaitihia ngā utu rauemi mata mā te 15-20%, ā, ko tōna mahi maha e kapi ana i te 80% o ngā whakamahinga waea nikara. Koinei te whiringa pai mō ngā hua i hangaia i roto i te papatipu pērā i ngā taputapu whare me ngā pūnaha whakamahana motuka, he mea nui te whakataurite i te mahi me te utu.

Nā te nui ake o te nikara o Nicr8020 ka piki ake te utu, ā, ka hiahiatia anake mō ngā tono pāmahana teitei motuhake (hei tauira, te whakamātautau wāhanga rererangi). He iti ake te utu mō ētahi atu tauira nikara iti pērā i a Nicr6040 engari kāore i te pai te mahi hei whakatutuki i ngā whakaritenga ahumahi, hiko tika rānei.

Aratohu Kōwhiringa

• KōwhiriNicr7030mēnā e hiahia ana koe ki: He mahi maha, he ngāwari te tukatuka (piko/whakapiri), he whai hua te utu, me te tono ki ngā taputapu whare, ki te whakamahana motuka, ki te whakamahana ahumahi, ki ngā hikohiko tino tika rānei.
• KōwhiriNicr8020mēnā e hiahiatia ana: Te pāmahana whakahaere teitei ake (1300°C+) me ngā wae whakamahana kaha-teitei kiato (hei tauira, ngā oumu ahumahi motuhake).
• Kōwhiria ētahi atu tauira (hei tauira, Nicr6040) mō ngā āhuatanga pāmahana-iti, tono-iti anake (hei tauira, ngā ātete taketake).

Nā te taurite o te mahi, te whai huatanga o te utu, me te whānui o te urutau, ko Nicr7030 te whiringa tino whai hua mō te nuinga o ngā kiritaki. Ka whakaratohia e tā mātou kamupene ngā whakatakotoranga ritenga (diameter, roa, takai) me te tautoko hangarau hei whakarite kia tino tutuki a Nicr7030 i ō hiahia tono.