Izintambo ze-alloy ze-nickel-chromium (Nichrome) zisetshenziswa kabanzi emikhakheni yokushisa, ye-elekthronikhi, neyezimboni ngenxa yokumelana kwazo okuhle kakhulu nokushisa okuphezulu kanye nokusebenza kukagesi okuzinzile. Phakathi kwazo,I-Nicr7030futhiI-Nicr8020yizona zinhlobo ezimbili ezivame kakhulu, kodwa kunomehluko omkhulu ekubunjweni, ekusebenzeni, kanye nasezimweni zokusetshenziswa. Ngezansi ukuqhathanisa okuningiliziwe ukukusiza ukuthi wenze izinqumo zokuthenga ezinolwazi:

Ubukhulu bokuqhathanisa	I-Nicr7030	I-Nicr8020	Amanye Amamodeli Avamile (isb., i-Nicr6040)
Ukwakheka Kwamakhemikhali	I-Nickel engu-70% + 30% i-Chromium	I-Nickel engu-80% + 20% i-Chromium	I-Nickel engu-60% + 40% i-Chromium
Izinga Lokushisa Eliphezulu Lokusebenza Eliqhubekayo	1250°C (Isikhathi esifushane sokushisa: 1400°C)	1300°C (Isikhathi esifushane sokushisa: 1450°C)	1150°C (Isikhathi esifushane sokushisa: 1350°C)
Ukumelana Nogesi (20°C)	1.18 Ω·mm²/m	1.40 Ω·mm²/m	1.05 Ω·mm²/m
Ukuguquguquka (Ukunwebeka ngesikhathi sokuphumula)	≥25%	≥15%	≥20%
Ukumelana ne-Oxidation	Kuhle kakhulu (ifilimu ye-Cr₂O₃ eminyene)	Kuhle (ifilimu ye-oxide ejiyile)	Kuhle (kuthambekele ekuqhekekeni uma izinga lokushisa liphezulu)
Ukushibilika	Okungcono kakhulu (kulula ukushisela ngezindlela ezivamile)	Okumaphakathi (kudinga ukulawulwa kwepharamitha okunembile)	Okumaphakathi
Ukusebenza Kahle Kwezindleko	Okuphezulu (ukusebenza okulinganiselayo kanye nentengo)	Okumaphakathi (okuqukethwe okuphezulu kwe-nickel kwandisa izindleko)	Okuphansi (ububanzi bokusetshenziswa obulinganiselwe)
Izimo Ezijwayelekile Zokusebenza	Izinto zasendlini, ukushisa kwezimboni, ukufudumeza kwezimoto, izinto zikagesi ezinembile	Izitofu zezimboni ezishisa kakhulu, imishini yokufudumeza ekhethekile	Amadivayisi okushisa aphansi, ama-resistors ajwayelekile

Ukuhlaziywa Komehluko Okuningiliziwe

1. Ukwakheka Kwamakhemikhali Nokusebenza Okuyinhloko

Umehluko oyinhloko usesilinganisweni se-nickel-chromium: I-Nicr7030 iqukethe i-chromium engu-30% (ephakeme kune-Nicr8020 engu-20%), okuthuthukisa ukuqina kwayo kanye nokushibilika. Ngokwandiswa lapho iphuka ngo-≥25%, i-Nicr7030 ingadonswa ezintanjeni ezincane kakhulu (kuze kufike ku-0.01mm) noma igoqwe ibe yizimo eziyinkimbinkimbi, okwenza ifaneleke kakhulu emikhiqizweni edinga ukucutshungulwa okunembile (isb., izintambo zokushisa izihlalo zezimoto, izinzwa ze-elekthronikhi ezincane).

Ngokuphambene nalokho, okuqukethwe kwe-nickel okuphezulu kwe-Nicr8020 (80%) kuthuthukisa ukuzinza kwayo ekushiseni okuphezulu, okuvumela ukuthi isebenze ngokuqhubekayo ku-1300°C—50°C ngaphezu kwe-Nicr7030. Kodwa-ke, lokhu kuza ngezindleko zokuncipha kokuguquguquka (kuphela ≥15%), okwenza ingafaneleki kangako ekugobeni noma ekwakheni izinqubo. Amanye amamodeli afana ne-Nicr6040 anokuqukethwe kwe-nickel okuphansi, okuholela ekumelaneni okuphansi kanye nokumelana nokushisa, okunciphisa ukusetshenziswa kwawo ezimweni eziphansi zokufunwa.

2. Ukumelana Nokusebenza Kahle Kwamandla

Ukumelana ngqo kuthinta ukusebenza kahle kokushisa kanye nokwakheka kwezingxenye. I-Nicr8020 inokumelana okuphezulu (1.40 Ω·mm²/m2), okusho ukuthi ikhiqiza ukushisa okwengeziwe ngobude beyunithi ngayinye ngaphansi kombane ofanayo, okwenza ifaneleke ezintweni zokushisa ezinamandla aphezulu ezincane (isb., izitofu zokushisa ezishisa kakhulu).

Ukumelana okulinganiselwe kwe-Nicr7030 (1.18 Ω·mm²/m) kufinyelela ibhalansi phakathi kokukhiqizwa kokushisa nokusetshenziswa kwamandla. Eziningi zezicelo zezimboni nezabathengi (isb., ama-oven, ama-heating pad), inikeza amandla okushisa anele ngenkathi kunciphisa imfucuza yamandla. Ngaphezu kwalokho, ukumelana kwayo okuzinzile (± 0.5% ukubekezelela) kuqinisekisa ukusebenza okuqhubekayo ekusetshenzisweni kwesikhathi eside, kugwema ukuguquguquka kwezinga lokushisa.

3. Ukumelana ne-Oxidation kanye nempilo yesevisi

Kokubili i-Nicr7030 ne-Nicr8020 zakha amafilimu e-Cr₂O₃ avikelayo emazingeni okushisa aphezulu, kodwa okuqukethwe kwe-chromium ephezulu ye-Nicr7030 kudala ifilimu eqinile neqinile. Lokhu kuyenza imelane "nokubola okuluhlaza" (i-oxidation ye-intergranular) ezindaweni ezinomswakama noma ezinciphayo, okwandisa isikhathi sayo sokusebenza sibe amahora angu-8000+ (u-20% ubude kune-Nicr8020 ezindaweni ezinzima).

I-Nicr6040, enokuqukethwe okuphansi kwe-chromium, inefilimu ye-oxide engazinzile kakhulu evame ukuqhekeka emazingeni okushisa angaphezu kuka-1000°C, okuholela ekuncishisweni kwesikhathi senkonzo kanye nezindleko zokulungisa ezengeziwe.

4. Ukuzivumelanisa Nezindleko Nokusetshenziswa

I-Nicr7030 inikeza ukusebenza kahle kwezindleko okuphezulu: okuqukethwe kwayo okuphansi kwe-nickel (uma kuqhathaniswa ne-Nicr8020) kunciphisa izindleko zezinto zokusetshenziswa ngo-15-20%, kuyilapho ukusebenza kwayo okuguquguqukayo kuhlanganisa u-80% wezimo zokusetshenziswa kwe-nichrome wire. Kuyindlela ekhethwayo yemikhiqizo ekhiqizwa ngobuningi njengezinto zasekhaya kanye nezinhlelo zokushisa izimoto, lapho ukulinganisela ukusebenza kanye nezindleko kubalulekile.

Okuqukethwe kwe-nickel okuphezulu kwe-Nicr8020 kwandisa izindleko zayo, okwenza kudingeke kuphela kwizicelo ezikhethekile zokushisa okuphezulu (isb., ukuhlolwa kwezingxenye zezindiza). Amanye amamodeli e-nickel aphansi njenge-Nicr6040 ashibhile kodwa awakwazi ukusebenza ukuhlangabezana nezidingo zezimboni noma ze-elekthronikhi ngokunemba.

Umhlahlandlela Wokukhetha

• KhethaI-Nicr7030uma udinga: Ukusebenza okuguquguqukayo, ukucubungula okulula (ukugoba/ukushisela), ukusebenza kahle kwezindleko, kanye nokusetshenziswa ezintweni zasendlini, ukufudumeza izimoto, ukufudumeza kwezimboni, noma izinto zikagesi ezinembile.
• KhethaI-Nicr8020uma udinga: Izinga lokushisa eliphezulu lokusebenza (1300°C+) kanye nezinto zokushisa ezinamandla aphezulu ezincane (isb., izitofu ezikhethekile zezimboni).
• Khetha amanye amamodeli (isb., i-Nicr6040) kuphela ezimweni zokushisa okuphansi, ezidingakala kancane (isb., ama-resistor ayisisekelo).

Ngokusebenza kwayo okulinganiselayo, ukusebenza kahle kwezindleko, kanye nokuzivumelanisa nezimo okubanzi, i-Nicr7030 iyisinqumo esingabizi kakhulu kumakhasimende amaningi. Inkampani yethu inikeza imininingwane eyenziwe ngokwezifiso (ububanzi, ubude, ukupakishwa) kanye nokusekelwa kobuchwepheshe ukuqinisekisa ukuthi i-Nicr7030 ifanelana kahle nezidingo zakho zohlelo lokusebenza.