ʻO Ni80Cr20 kahi nickel-chromium alloy (NiCr alloy) i hōʻike ʻia e ka resistivity kiʻekiʻe, ke kūpaʻa oxidation maikaʻi a me ke kūpaʻa ʻano maikaʻi loa. He kūpono ia no ka hoʻohana ʻana i nā mahana a hiki i 1200 ° C, a paʻa i kahi ola lawelawe ʻoi aku ka maikaʻi e hoʻohālikelike ʻia me nā alloys Iron chromium alumium.
ʻO nā noi maʻamau no Ni80Cr20 he uilamea hoʻomehanas i nā mea hana hale, nā umu ahi a me nā mea kū'ē (nā mea pale wili, nā mea pale kiʻi metala), nā hao palahalaha, nā mīkini hao, nā mea hoʻomehana wai, nā mea hoʻoheheʻe plastik, nā hao hao, nā mea tubular sheathed metala a me nā mea pahu pahu.
Nā Pono Mechanical o ka uea Nichrome 80
ʻO ka wela o ka lawelawe mau loa: | 1200ºC |
20ºC ke kū'ē: | 1.09 ohm mm2/m |
ʻAiʻa: | 8.4 g/cm3 |
ʻO ka wela wela: | 60.3 KJ/m·h·ºC |
Coefficient o ka hoonui wela: | 18 α×10-6/ºC |
Lae hehee: | 1400ºC |
Elongation: | Min 20% |
Hanana Micrographic: | Austenite |
Mea Mākēneki: | nonmagnetic |
ʻO nā mea wela o ke kū'ē uila
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 | - |
Kaila o ka lako
Inoa Alloys | ʻAno | Anana | ||
Ni80Cr20W | Uea | D=0.03mm~8mm | ||
Ni80Cr20R | Lipine | W=0.4~40 | T=0.03~2.9mm | |
Ni80Cr20S | Kaʻi | W=8~250mm | T=0.1~3.0 | |
Ni80Cr20F | Foil | W=6~120mm | T=0.003~0.1 | |
Ni80Cr20B | Bar | Dia=8~100mm | L=50~1000 |