Nikkel-chromium (Nichrome) fiilooyinka daawaha ah ayaa si weyn loogu isticmaalaa kuleyliyaha, elektiroonigga ah, iyo beeraha warshadaha sababtoo ah iska caabin heerkul sare oo heer sare ah iyo waxqabadka korantada deggan. Waxaa ka mid ah.Nicr7030iyoNicr8020waa labada nooc ee ugu caansan, laakiin waxaa jira farqi weyn oo u dhexeeya halabuurka, waxqabadka, iyo xaaladaha codsiga. Hoos waxaa ah isbarbardhigga faahfaahsan si uu kaaga caawiyo inaad gaarto go'aamo wax-iibsi oo xog leh:

Isbarbardhigga Cabirka	Nicr7030	Nicr8020	Qaababka kale ee Caadiga ah (tusaale, Nicr6040)
Halabuurka Kiimikada	70% Nickel + 30% Chromium	80% Nickel + 20% Chromium	60% Nickel + 40% Chromium
Heerkulka Shaqada ee Joogtada ah ee ugu badan	1250°C (ugu sarraysa wakhtiga gaaban: 1400°C)	1300°C (ugu sarraysa wakhtiga gaaban: 1450°C)	1150°C (ugu sarraysa wakhtiga gaaban: 1350°C)
Iska caabin Koronto (20°C)	1.18 Ω·mm²/m	1.40 Ω·mm²/m	1.05 Ω·mm²/m
Ductility ( Kordhinta wakhtiga nasashada)	≥25%	≥15%	≥20%
Iska caabinta Oxidation	Aad u fiican (filim Cr₂O₃ cufan)	Fiican (filim oksaydh dhumuc leh)	Wanaagsan (u nugul in ay diirto heerkulka sare)
Weldability	Sare (si sahlan loo alxan karo oo leh habab caadi ah)	Dhexdhexaad (waxay u baahan tahay kontorool sax ah)	Dhexdhexaad
Waxtarka-kharashka	Sare (waxqabadka iyo qiimaha isku dheelitiran)	Dhexdhexaad (macnaha nikkel ee sarreeya ayaa kordhiya qiimaha)	Hooseeyo (Baaxadda Codsiga xaddidan)
Xaaladaha Codsiga caadiga ah	Qalabka guriga, kululaynta warshadaha, kululaynta baabuurta, elektiroonigga saxda ah	Foornooyinka warshadaha ee heerkulka sare leh, qalabka kululaynta ee gaarka ah	Qalabka kulaylka heerkulka hooseeya, caabiyeyaasha guud

Falanqaynta Farqiga oo faahfaahsan

1. Halabuurka Kiimikada & Waxqabadka Muhiimka ah

Farqiga udub-dhexaadku wuxuu ku jiraa saamiga nikkel-chromium: Nicr7030 wuxuu ka kooban yahay 30% chromium (oo ka sarreeya Nicr8020's 20%), kaas oo kor u qaadaya ductility iyo weldability. Iyada oo la kordhin karo jabinta ≥25%, Nicr7030 waxaa loo jiidi karaa fiilooyinka aadka u fiican (hoos 0.01mm) ama loo leexiyo qaabab isku dhafan, taasoo ka dhigaysa mid ku habboon alaabada u baahan farsamaynta saxda ah (tusaale, fiilooyinka kuleylka kursiga baabuurta, dareemayaasha elektiroonigga ah ee la yareeyey).

Taas bedelkeeda, Nicr8020's content nikkel sare (80%) waxay wanaajisaa xasilloonideeda heerkulka sare, taasoo u oggolaanaysa inay si joogto ah ugu shaqeyso 1300 ° C-50 ° C ka sarreeya Nicr7030. Si kastaba ha ahaatee, tani waxay ku timaadaa qiimaha hoos u dhaca ductility (kaliya ≥15%), taasoo ka dhigaysa mid aan ku habboonayn foorarsiga ama samaynta hababka. Moodooyinka kale sida Nicr6040 waxay leeyihiin maadada nikkel hoose, taasoo keentay iska caabin hoose iyo iska caabin heerkulka, xaddidaya isticmaalkooda xaaladaha baahida hoose.

2. Iska caabin & Waxtarka Tamarta

Cadaadisku wuxuu si toos ah u saameeyaa waxtarka kuleylka iyo naqshadeynta qaybaha. Nicr8020 waxay leedahay iska caabin sare (1.40 Ω·mm²/m), taasoo la macno ah inay dhaliso kuleyl badan halkii cutubkiiba dhererka isla hadda, taasoo ka dhigaysa mid ku habboon walxo kululaynta tamarta sare leh (tusaale, foornooyinka heerkulka sare leh).

Nicr7030's iska caabin dhexdhexaad ah (1.18 Ω·mm²/m) waxay ku dhufataa dheellitirnaanta u dhaxaysa abuurista kulaylka iyo isticmaalka tamarta. Inta badan codsiyada warshadaha iyo macaamiisha (tusaale, foornooyinka, suufyada kuleylka), waxay siisaa awood kuleyl ku filan iyadoo yareyneysa qashinka tamarta. Intaa waxaa dheer, iska caabinteeda xasilloon (± 0.5% dulqaad) waxay hubisaa waxqabadka joogtada ah ee isticmaalka muddada dheer, iyada oo ka fogaanaysa isbeddellada heerkulka.

3. Resistance Oxidation & Nolosha Adeegga

Nicr7030 iyo Nicr8020 labaduba waxay sameeyaan filimo Cr₂O₃ ah oo ilaalinaya heerkul sare, laakiin Nicr7030's chromium-ka sare ee ka kooban wuxuu abuuraa filim cufan, waara. Tani waxay ka dhigaysaa mid u adkaysata "qurunka cagaarka ah" (oxidation intergranular) ee qoyaanka ah ama yaraynta jawiga, kordhinta cimrigeeda adeeg ilaa 8000+ saacadood (20% ka dheer Nicr8020 ee jawi adag).

Nicr6040, oo leh maadada chromium-ka hoose, ayaa leh filim oksaydh ah oo aan xasiloonayn oo u nugul in uu diiriyo heerkul ka sarreeya 1000°C, taas oo horseedaysa nolosha adeegga oo la gaabiyo iyo kharashka dayactirka oo kordhay.

4. Qiimaha & La qabsiga Codsiga

Nicr7030 waxay bixisaa wax ku ool heer sare ah: nikkelkeeda hoose (marka loo eego Nicr8020) waxay yaraynaysaa kharashka alaabta ceeriin 15-20%, halka waxqabadkeeda la taaban karo uu daboolayo 80% xaaladaha codsiga siliga nichrome. Waa doorashada la door bidayo alaabooyinka la soo saaro sida qalabka guriga iyo nidaamyada kuleylinta baabuurta, halkaasoo dheelitirka waxqabadka iyo qiimaha ay muhiim tahay.

Nicr8020's nikkelka sare waxa uu kordhiyaa kharashkiisa, taas oo ka dhigaysa kaliya lama huraan codsiyada heerkul sare ee khaaska ah (tusaale, tijaabinta qaybaha hawada). Noocyada kale ee nikkel-hooseeya sida Nicr6040 waa ka raqiisan yihiin laakiin waxaa ka maqan waxqabad si ay u buuxiyaan shuruudaha elektiroonigga ah ee warshadaha ama saxda ah.

Hagaha Xulashada

• DooroNicr7030haddii aad u baahan tahay: Waxqabad la taaban karo, habayn fudud (qalloocin/alxanka), wax ku oolnimada kharash-oolnimada, iyo codsiga qalabka guriga, kululaynta baabuurta, kululaynta warshadaha, ama elektiroonigga saxda ah.
• DooroNicr8020haddii aad u baahan tahay: Heerkulka shaqada oo sarreeya (1300°C+) iyo walxaha kululaynta tamarta sare leh (tusaale, foornooyinka warshadaha gaarka ah).
• Dooro moodooyinka kale (tusaale, Nicr6040) kaliya heerkulka hooseeya, xaaladaha baahida hoose (tusaale, iska caabiyeyaasha aasaasiga ah).

Iyada oo leh waxqabadkeeda dheellitiran, wax-ku-oolnimada, iyo la qabsiga ballaaran, Nicr7030 waa doorashada ugu kharash-oolsan ee macaamiisha intooda badan. Shirkaddayadu waxay bixisaa tilmaamo la habeeyey (dhexroor, dherer, baakad) iyo taageero farsamo si loo hubiyo in Nicr7030 uu si fiican ugu habboon yahay baahiyaha codsigaaga.