Ni80Cr20 yog npib tsib xee-chromium alloy (NiCr alloy) uas muaj kev tiv thaiv siab, zoo oxidation kuj thiab zoo heev daim ntawv stability. Nws yog qhov tsim nyog rau kev siv ntawm qhov kub txog li 1200 ° C, thiab tuav lub neej kev pabcuam zoo dua piv rau Hlau chromium alumium alloys.
Cov ntawv thov rau Ni80Cr20 yog cov khoom siv hluav taws xob cua sov hauv cov khoom siv hauv tsev, cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob (wirewound resistors, hlau zaj duab xis resistors), tiaj tus hlau, ironing tshuab, dej rhaub dej, yas molding tuag, soldering hlau, hlau sheathed tubular ntsiab thiab cartridge ntsiab.
Mechanical Properties ntawm Nichrome 80 hlau
Max Continuous Service Temperature: | 1200ºC |
Kev kub siab 20ºC: | 1.09 ohm mm2 / m |
Ceev: | 8.4g 3 |
Thermal conductivity: | 60.3 KJ/m·h·°C |
Coefficient ntawm Thermal Expansion: | 18 α × 10-6 / ºC |
Melting Point: | 1400ºC |
Elongation: | Tsawg tshaj 20% |
Micrographic Structure: | Austenite |
Magnetic Property: | nonmagnetic |
Temperature Factors Ntawm Hluav Taws Xob Resistivity
20ºC tso | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC |
1 | 1.006 ib | 1.012 ib | 1.018 Nws | 1.025 Nws | 1.026 ib | 1.018 Nws |
700ºC | 800ºC | 900 ºC | 1000ºC | 1100ºC | 1200ºC | 1300ºC |
1.01 Nws | 1.008 Nws | 1.01 Nws | 1.014 ib | 1.021 ib | 1.025 Nws | - |
Style khoom
Alloys npe | Hom | Dimension | ||
Ni80Cr20W | Hlau | D = 0.03mm ~ 8mm | ||
Ni80Cr20R | Ribbon | W = 0.4 ~ 40 | T = 0.03 ~ 2.9 hli | |
Ni80Cr20S | Sawb | W = 8 ~ 250mm | T = 0.1 ~ 3.0 | |
Ni80Cr20F | Ntawv nyiaj | W = 6 ~ 120mm | T = 0.003–0.1 | |
Ni80Cr20B | Bar | Dia = 8 ~ 100mm | L = 50 ~ 1000 |