Ni80Cr20 yog ib qho hlau nickel-chromium alloy (NiCr alloy) uas muaj lub zog tiv taus siab, tiv taus oxidation zoo thiab ruaj khov zoo heev. Nws tsim nyog siv rau ntawm qhov kub txog li 1200 ° C, thiab tuav lub neej ua haujlwm zoo dua piv rau Iron chromium alumium alloys.
Cov ntawv thov ib txwm muaj rau Ni80Cr20 yog cov khoom siv hluav taws xob hauv cov khoom siv hauv tsev, cov cub tawg kev lag luam thiab cov resistors (wirewound resistors, hlau zaj duab xis resistors), cov hlau tiaj tus, cov tshuab ironing, cov cua sov dej, cov yas molding tuag, cov hlau soldering, cov hlau sheathed tubular thiab cov khoom cartridge.
Cov Khoom Siv Kho Tshuab ntawm Nichrome 80 xaim
| Kub Tshaj Plaws Kev Pabcuam Txuas Ntxiv Mus: | 1200ºC |
| Kev tiv taus 20ºC: | 1.09 ohm mm2/m |
| Qhov Ceev: | 8.4 g/cm3 |
| Kev Ua Kub: | 60.3 KJ/m·h·ºC |
| Coefficient ntawm Thermal Expansion: | 18 α × 10-6 / ºC |
| Melting Point: | 1400ºC |
| Kev ntev: | Yam tsawg kawg nkaus 20% |
| Cov Qauv Micrographic: | Austenite |
| Khoom Siv Sib Nqus: | tsis yog hlau nplaum |
Cov Yam Kub thiab Txias ntawm Cov Hluav Taws Xob Resistivity
| 20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC |
| 1 | 1.006 | 1.012 | 1.018 | 1.025 | 1.026 | 1.018 |
| 700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1200ºC | 1300ºC |
| 1.01 | 1.008 | 1.01 | 1.014 | 1.021 | 1.025 | - |
Hom kev muab khoom
| Lub Npe Alloys | Hom | Qhov Loj | ||
| Ni80Cr20W | Hlau | D = 0.03 hli ~ 8 hli | ||
| Ni80Cr20R | Daim kab xev | W = 0.4 ~ 40 | T = 0.03 ~ 2.9 hli | |
| Ni80Cr20S | Sawb | W = 8 ~ 250 hli | T = 0.1 ~ 3.0 | |
| Ni80Cr20F | Ntawv ci | W = 6 ~ 120 hli | T = 0.003 ~ 0.1 | |
| Ni80Cr20B | Bar | Dia = 8 ~ 100 hli | L = 50 ~ 1000 | |
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