Magetsi anopikisa alloys anoshandiswa zvakanyanya mumahita emagetsi, kunyanya NiCr. Nichrome is nickel uye chromium alloy iyo inowanzoshandiswa mukugadzirwa kwewaya yekupikisa nekuda kwekukwirira kwayo kwepamusoro uye yakagadzikana anti-oxidation properties patembiricha inosvika 1250 ° C ndosaka waya dzekudzivirira dzakanyatsokodzera kushanda munzvimbo dzakanyanyisa apo dzinoiswa pasi pekumanikidzwa nekupisa. Vladimir Chirimwa chePrecision Alloys yanga ichigadzira ma alloys ekupisa uye kupisa alloys kubva pahwaro hwayo. Simba redu kugadzira waya, mitsetse, ribhoni uye foil, kusanganisira NiCr alloys uye Fe-Cr-Al alloys.
Giredhi | Ni80Cr20 | Ni70Cr30 | Ni60Cr23 | Ni60Cr15 | Ni35Cr20 | Karma | Evanohm | |
Nominal composition% | Ni | Bal | Bal | 58.0-63.0 | 55.0-61.0 | 34.0-37.0 | Bal | Bal |
Cr | 20.0-23.0 | 28.0-31.0 | 21.0-25.0 | 15.0-18.0 | 18.0-21.0 | 19.0-21.5 | 19.0-21.5 | |
Fe | ≦1.0 | ≦1.0 | Bal | Bal | Bal | 2.0-3.0 | - | |
Al1.0-1.7 Ti 0.3-0.5 | Al2.7-3.2 Mn0.5-1.5 | Al2.7-3.2 Cu2.0-3.0 Mn0.5-1.5 | ||||||
Kupisa kukuru kwekushanda(°C) | 1200 | 1250 | 1150 | 1150 | 1100 | 300 | 400 | |
Resisivity(Ω/cmf,20℃) | 1.09 | 1.18 | 1.21 | 1.11 | 1.04 | 1.33 | 1.33 | |
Resisivity(uΩ/m,60°F) | 655 | 704 | 727 | 668 | 626 | 800 | 800 | |
Density(g/cm³) | 8.4 | 8.1 | 8.4 | 8.2 | 7.9 | 8.1 | 8.1 | |
Thermal Conductivity(KJ/m·h·℃) | 60.3 | 45.2 | 45.2 | 45.2 | 43.8 | 46.0 | 46.0 | |
Linear Kuwedzera Coefficient(×10¯6/℃)20-1000℃) | 18.0 | 17.0 | 17.0 | 17.0 | 19.0 | - | - | |
Melting Point(℃) | 1400 | 1380 | 1370 | 1390 | 1390 | 1400 | 1400 | |
Kuoma (Hv) | 180 | 185 | 185 | 180 | 180 | 180 | 180 | |
Kusimba Kwesimba(N/mm2) | 750 | 875 | 800 | 750 | 750 | 780 | 780 | |
Elongation(%) | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | 10-20 | 10-20 | |
Micrographic Structure | austenite | austenite | austenite | austenite | austenite | austenite | austenite | |
MagneticProperty | Kwete | Kwete | Kwete | Zvishoma | Kwete | Kwete | Kwete | |
Hupenyu Hwekukurumidza (h/℃) | ≥81/1200 | ≥50/1250 | ≥81/1200 | ≥81/1200 | ≥81/1200 | - | - |
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