Iingcingo ze-alloy ze-nickel-chromium (Nichrome) zisetyenziswa kakhulu kwiindawo zokufudumeza, ze-elektroniki, kunye nezemizi-mveliso ngenxa yokumelana kwazo nobushushu obuphezulu kunye nokusebenza kombane okuzinzileyo. Phakathi kwazo,Nicr7030kwayeNicr8020zezona modeli zimbini ziphambili, kodwa kukho umahluko omkhulu kwindlela ezibunjwe ngayo, indlela ezisebenza ngayo, kunye neemeko zokusetyenziswa kwazo. Apha ngezantsi kukho uthelekiso oluneenkcukacha ukukunceda wenze izigqibo zokuthenga ezinolwazi:

Umlinganiselo wokuthelekisa	Nicr7030	Nicr8020	Ezinye iiModeli eziqhelekileyo (umz., iNicr6040)
Ukwenziwa kweeKhemikhali	I-70% yeNickel + 30% yeChromium	I-80% yeNickel + 20% yeChromium	I-60% yeNickel + 40% yeChromium
Ubushushu obuphezulu bokusebenza obuqhubekayo	1250°C (Incopho yexesha elifutshane: 1400°C)	1300°C (Incopho yexesha elifutshane: 1450°C)	1150°C (Incopho yexesha elifutshane: 1350°C)
Ukumelana nombane (20°C)	1.18 Ω·mm²/m	1.40 Ω·mm²/m	1.05 Ω·mm²/m
Ukuguquguquka (Ukwandiswa ngexesha lokuphumla)	≥25%	≥15%	≥20%
Ukumelana ne-Oxidation	Igqwesile (ifilimu exineneyo yeCr₂O₃)	Ilungile (ifilimu ye-oxide etyebileyo)	Kulungile (kunokutya okuqhekekayo xa kushushu kakhulu)
Ukuxinana	Ingcono (kulula ukuyidibanisa ngeendlela eziqhelekileyo)	Iphakathi (ifuna ulawulo oluchanekileyo lweparameter)	Iphakathi
Ukusebenza kakuhle kweendleko	Iphezulu (ukusebenza okulinganiselayo kunye nexabiso)	Phakathi (umxholo ophezulu we-nickel uyonyusa iindleko)	Iphantsi (ububanzi besicelo obulinganiselweyo)
Imizekelo yeSicelo esiQhelekileyo	Izixhobo zasekhaya, ukufudumeza kwemizi-mveliso, ukufudumeza iimoto, izixhobo ze-elektroniki ezichanekileyo	Izitofu zoshishino ezinobushushu obuphezulu, izixhobo zokufudumeza ezikhethekileyo	Izixhobo zokufudumeza ezishushu kakhulu, ii-resistor eziqhelekileyo

Uhlalutyo oluneenkcukacha lomahluko

1. Ukwakhiwa kweeKhemikhali kunye nokusebenza okungundoqo

Umahluko ophambili usekwe kumlinganiselo we-nickel-chromium: I-Nicr7030 ine-30% ye-chromium (engaphezulu kune-20% ye-Nicr8020), nto leyo ephucula ukuguguleka kwayo kunye nokudityaniswa kwayo. Ngokwandiswa kwayo xa iqhekeka nge-≥25%, i-Nicr7030 inokutsalwa kwiintambo ezicolekileyo kakhulu (ukuya kuthi ga kwi-0.01mm) okanye igotywe ibe ziimo ezintsonkothileyo, nto leyo eyenza ukuba ilungele iimveliso ezifuna ukucutshungulwa ngokuchanekileyo (umz., iintambo zokufudumeza izihlalo zeemoto, ii-sensors ze-elektroniki ezincinci).

Ngokwahlukileyo koko, umxholo ophezulu we-nickel weNicr8020 (80%) uphucula uzinzo lwayo kumaqondo obushushu aphezulu, nto leyo evumela ukuba isebenze ngokuqhubekayo kwi-1300°C—50°C ngaphezulu kuneNicr7030. Nangona kunjalo, oku kuza ngexabiso lokuncipha kokuguquguquka (kuphela ≥15%), okwenza ukuba ingafanelekanga kangako kwiinkqubo zokugoba okanye zokwenza. Ezinye iimodeli ezifana neNicr6040 zinomxholo ophantsi we-nickel, nto leyo ebangela ukuba ingabi namandla okumelana nobushushu obuphezulu, nto leyo ethintela ukusetyenziswa kwazo kwiimeko ezingafunekiyo kakhulu.

2. Ukumelana nokuSebenza kakuhle kwamandla

Ukumelana ngokuthe ngqo kuchaphazela ukusebenza kakuhle kokufudumeza kunye noyilo lwamacandelo. I-Nicr8020 inokumelana okuphezulu (1.40 Ω·mm²/m2), oko kuthetha ukuba ivelisa ubushushu obuninzi ngobude beyunithi nganye phantsi kombane ofanayo, nto leyo eyenza ukuba ifaneleke kwizinto ezishushubezayo ezinamandla aphezulu (umz., ii-furnace ezishushu kakhulu).

Ukumelana okuphakathi kweNicr7030 (1.18 Ω·mm²/m) kuqinisekisa ulungelelwaniso phakathi kokuveliswa kobushushu kunye nokusetyenziswa kwamandla. Kwiinkqubo ezininzi zoshishino kunye nabathengi (umz., ii-ovens, ii-heating pads), inika amandla okufudumeza aneleyo ngelixa inciphisa inkunkuma yamandla. Ukongeza, ukumelana kwayo okuzinzileyo (± 0.5% ukunyamezelana) kuqinisekisa ukusebenza rhoqo xa kusetyenziswa ixesha elide, kuthintelwe ukuguquguquka kobushushu.

3. Ukumelana ne-Oxidation kunye nobomi beNkonzo

Zombini iNicr7030 kunye neNicr8020 zenza iifilimu zeCr₂O₃ ezikhuselayo kumaqondo obushushu aphezulu, kodwa umxholo ophezulu we-chromium yeNicr7030 udala ifilimu exineneyo nehlala ixesha elide. Oku kuyenza imelane "nokubola okuluhlaza" (i-oxidation ye-intergranular) kwiindawo ezifumileyo okanye ezinciphayo, nto leyo eyandisa ubomi bayo benkonzo ukuya kwiiyure ezingama-8000+ (ixesha elide ngama-20% kuneNicr8020 kwiindawo ezirhabaxa).

I-Nicr6040, enomxholo ophantsi we-chromium, inefilimu ye-oxide engaguqukiyo enokuxobuka kumaqondo obushushu angaphezu kwe-1000°C, nto leyo ekhokelela ekubeni ubomi benkonzo bufutshane kwaye iindleko zokulungisa zinyuke.

4. Ukuguquguquka kweendleko kunye nosetyenziso

I-Nicr7030 inika ukusebenza kakuhle kweendleko: umxholo wayo ophantsi we-nickel (xa uthelekiswa ne-Nicr8020) unciphisa iindleko zezinto eziluhlaza nge-15-20%, ngelixa ukusebenza kwayo okuguquguqukayo kugubungela i-80% yeemeko zokusetyenziswa kwe-nichrome wire. Lukhetho olukhethwayo kwiimveliso eziveliswa ngobuninzi ezifana nezixhobo zasekhaya kunye neenkqubo zokufudumeza iimoto, apho ukulinganisela ukusebenza kunye neendleko kubalulekile.

Umxholo ophezulu we-nickel weNicr8020 unyusa iindleko zayo, nto leyo eyenza ukuba ifuneke kuphela kwizicelo ezikhethekileyo zobushushu obuphezulu (umz., uvavanyo lwecandelo le-aerospace). Ezinye iimodeli ze-nickel eziphantsi ezifana neNicr6040 zixabiso eliphantsi kodwa azinawo amandla okuhlangabezana neemfuno ze-elektroniki okanye zemizi-mveliso.

Isikhokelo sokukhetha

• KhethaNicr7030ukuba uyayifuna: Ukusebenza ngeendlela ezahlukeneyo, ukucutshungulwa okulula (ukugoba/ukuwelda), ukusebenza kakuhle kweendleko, kunye nokusetyenziswa kwizixhobo zasekhaya, ukufudumeza iimoto, ukufudumeza kwimizi-mveliso, okanye izixhobo ze-elektroniki ezichanekileyo.
• KhethaNicr8020ukuba uyayidinga: Ubushushu obuphezulu bokusebenza (1300°C+) kunye nezinto zokufudumeza ezinamandla aphezulu (umz., ii-ovens ezikhethekileyo zoshishino).
• Khetha ezinye iimodeli (umz., iNicr6040) kuphela kwiimeko ezinobushushu obuphantsi, ezingafunekiyo kakhulu (umz., ii-resistor ezisisiseko).

Ngenxa yokusebenza kwayo okulungeleleneyo, ukusebenza kakuhle kweendleko, kunye nokuguquguquka ngokubanzi, iNicr7030 yeyona ndlela ingabizi kakhulu kubathengi abaninzi. Inkampani yethu inika iinkcukacha ezenzelwe wena (ububanzi, ubude, ukupakisha) kunye nenkxaso yobugcisa ukuqinisekisa ukuba iNicr7030 ihambelana ngokugqibeleleyo neemfuno zakho zesicelo.