Marka hore, waa muhiim in la caddeeyo xiriirkooda:Nichrome(oo loo soo gaabiyo daawaha nickel-chromium) waa qayb ballaaran oo ka mid ah daawaha ku salaysan nickel-chromium, halkaNi80waa nooc gaar ah oo nichrome ah oo leh halabuur go'an (80% nikkel, 20% chromium). "Farqiga" wuxuu ku jiraa "qaybta guud iyo nooca gaarka ah" - Ni80 wuxuu ka tirsan yahay qoyska nichrome laakiin wuxuu leeyahay sifooyin gaar ah sababtoo ah go'ankiisa , taasoo ka dhigaysa mid ku habboon xaaladaha heerkulka sare ee gaarka ah. Hoos waxaa ku qoran isbarbardhig faahfaahsan:
| Aragti | Nichrome (Qaybta Guud) | Ni80 (Kala duwanaansho Nichrome gaar ah) |
| Qeexitaan | Qoys ka kooban biraha birta ah oo inta badan ka kooban nikkel (50-80%) iyo chromium (10-30%), oo leh waxyaabo lagu daro ikhtiyaari ah (tusaale ahaan, birta) | Kala duwanaansho nichrome oo heer sare ah oo leh halabuur adag: 80% nikkel + 20% chromium (wax lagu daro dheeraad ah ma jiraan) |
| Dabacsanaanta Halabuurka | Saamiyada nikkel-chromium ee isbeddela (tusaale ahaan, Ni60Cr15, Ni70Cr30) si loo daboolo baahiyaha kala duwan | Saamiga nickel-chromium ee go'an 80:20 (dabacsanaan la'aan qaybaha asaasiga ah) |
| Waxqabadka Muhiimka ah | Iska caabin heer-kul sare oo dhexdhexaad ah (800-1000°C), iska caabin oksaydh oo aasaasi ah, iyo iska caabin koronto oo la hagaajin karo | Iska caabin heer-kul sare oo heer sare ah (ilaa 1200°C), iska caabin oksaydh oo aad u fiican (cabbir hoose oo ah 1000°C+), iyo iska caabin koronto oo deggan (1.1–1.2 Ω/mm²) |
| Codsiyada Caadiga ah | Xaaladaha kuleylinta heerkulka dhexdhexaadka ah (tusaale ahaan, tuubooyinka kuleylinta qalabka guryaha, kuleyliyeyaasha yaryar, kuleyliyeyaasha warshadaha ee awoodda yar) | Xaaladaha heerkulka sare leh, baahida sare leh (tusaale ahaan, gariiradaha foornada warshadaha, daahyada kulul ee daabacaha 3D, walxaha ka saara barafka hawada) |
| Xaddidaadaha | Heerkulka ugu sarreeya oo hooseeya; waxqabadku wuu ku kala duwan yahay saamiga gaarka ah (noocyada qaar ayaa si dhakhso ah u oksaydha heerkulka sare) | Kharash badan oo alaabta ceeriin ah; u-qalmasho xad dhaaf ah xaaladaha heerkulka hooseeya (aan kharash-ool ahayn) |
1. Halabuurka: Go'an iyo Dabacsanaan
Nichrome ahaan qayb ahaan wuxuu u oggolaanayaa saamiga nikkel-chromium ee la hagaajin karo si loo dheellitiro kharashka iyo waxqabadka. Tusaale ahaan, Ni60Cr15 (60% Ni, 15% Cr) wuxuu ku daraa bir si loo yareeyo kharashka laakiin wuxuu yareeyaa iska caabbinta kulaylka. Taas bedelkeeda, Ni80 wuxuu leeyahay saamiga nikkel-chromium 80:20 oo aan gorgortan geli karin - maaddadan nikkel ee sare waa sababta ay uga sarreyso noocyada kale ee nichrome ee iska caabbinta oksaydhka iyo dulqaadka heerkulka. Ni80-keennu si adag ayuu ugu dheggan yahay heerka 80:20, iyadoo saxnaanta halabuurka ay ku jirto ±0.5% (lagu tijaabiyay iyada oo loo marayo spectroscopy-ga nuugista atomiga).
2. Waxqabadka: Takhasuska leh iyo Ujeeddada Guud
Baahida heerkulka sare (1000–1200°C), Ni80 lama barbar dhigi karo. Waxay ilaalisaa xasilloonida qaab-dhismeedka ee foornada warshadaha ama dhammaadka kulul ee daabacaadda 3D, halka nichrome-yada kale (tusaale ahaan, Ni70Cr30) ay bilaabi karaan inay oksaydheeyaan ama isbeddelaan marka loo eego 1000°C. Si kastaba ha ahaatee, hawlaha heerkulka dhexe ee hooseeya (tusaale ahaan, kuleyliyaha timaha qalajiyaha 600°C), isticmaalka Ni80 waa mid aan loo baahnayn - noocyada nichrome ee jaban ayaa si fiican u shaqeeya. Khadadka badeecadeennu wuxuu daboolayaa labadaba Ni80 (xaaladaha baahida sare leh) iyo nichrome-yada kale (baahida qiimaha xasaasiga ah, heerkulka hooseeya).
3. Codsiga: La beegsanayo iyo kan ballaaran
Qaybta ballaaran ee Nichrome waxay u adeegtaa baahiyo kala duwan oo heerkul hoose ilaa dhexe ah: Ni60Cr15 loogu talagalay kuleyliyeyaasha guryaha yaryar, Ni70Cr30 loogu talagalay fiilooyinka rootiga ganacsiga. Ni80, marka la barbardhigo, waxay bartilmaameedsataa codsiyada heerkulka sare leh: waxay awood siisaa foornooyinka sintering-ka warshadaha (halkaas oo isku-midnaanta heerkulku ay muhiim tahay) iyo nidaamyada ka-saarista barafka hawada (halkaas oo iska caabbinta wareegyada qabow/kulul ee aadka u daran ay muhiim tahay). Ni80-keennu wuxuu shahaado u haystaa ASTM B162 (heerarka hawada) iyo ISO 9001, taasoo hubinaysa isku halaynta goobahan baahida badan leh.
Sidee Loo Kala Doortaa?
- Dooro nichrome guud (tusaale ahaan, Ni60Cr15, Ni70Cr30) haddii: Aad u baahan tahay kuleyliye heerkul dhexdhexaad ah (<1000°C) oo mudnaanta siiya kharash-oolnimada (tusaale ahaan, qalabka guriga, kuleyliyeyaasha yaryar).
- Dooro Ni80 haddii: Aad u baahan tahay xasillooni heerkul sare leh (>1000°C), cimri adeeg oo dheer (10,000+ saacadood), ama aad ka shaqeyso warshadaha muhiimka ah (hawada sare, wax soo saarka warshadaha).
Kooxdayadu waxay bixisaala-tashiyo bilaash ah—waxaan kaa caawin doonnaa inaad la jaanqaado nooca nichrome ee saxda ah (oo ay ku jirto Ni80) codsigaaga gaarka ah, annagoo hubinayna waxqabadka ugu wanaagsan iyo hufnaanta kharashka.
Waqtiga boostada: Noofambar-25-2025
