Ni70Cr30is nickel-chromium alloy (NiCr alloy) inoratidzwa nepamusoro resistivity, yakanaka oxidation kuramba uye yakanaka kwazvo kugadzikana kwefomu.Yakakodzera kushandiswa patembiricha inosvika 1250 ° C, uye inobata hupenyu hwesevhisi hwepamusoro kana ichienzaniswa neIron chromium alumium alloys.
Yakajairika mashandisirwo eNi70Cr30 magetsi ekudziya zvinhu mumidziyo yemumba, maindasitiri emoto uye resistors (waya madhizaini, simbi firimu resistors), simbi dzakatsetseka, michina yekuayina, hita dzemvura, kuumbwa kwepurasitiki kunofa, simbi dzekutengesa, simbi sheathed tubular zvinhu uye cartridge zvinhu.
Zvakajairwa
C | P | S | Mn | Si | Cr | Ni | Al | Fe | Zvimwe |
Max | |||||||||
0.03 | 0.02 | 0.015 | 0.60 | 0.75~1.60 | 28.0~31.0 | Bal. | Max 0.50 | Max 1.0 | - |
Typical Physical properties
Density (g/cm3) | 8.1 |
Kuramba kwemagetsi pa20ºC(mm2/m) | 1.18 |
Coefficient yekuwedzera kwekushisa | |
Tembiricha | Coefficient of Thermal Expansion x10-6/ºC |
20 ºC-1000ºC | 17 |
Kunyanya kupisa simba | |
Tembiricha | 20ºC |
J/gK | 0.46 |
Melting point (ºC) | 1380 |
Kuwedzera tembiricha inoramba ichishanda mumhepo (ºC) | 1250 |
Magnetic properties | isiri-magnetic |
Tembiricha Zvinhu ZveMagetsi Resistivity | |||||
20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 600ºC |
1 | 1.006 | 1.012 | 1.018 | 1.025 | 1.018 |
700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1300ºC |
1.01 | 1.008 | 1.01 | 1.014 | 1.021 | - |
Maitiro ekupa
Alloys Name | Type | Dimension | ||
Ni70Cr30W | Waya | D=0.03mm~8mm | ||
Ni70Cr30R | Ribhoni | W=0.4~40 | T=0.03~2.9mm | |
Ni70Cr30S | Strip | W=8~250mm | T=0.1~3.0 | |
Ni70Cr30F | Foil | W=6~120mm | T=0.003~0.1 | |
Ni70Cr30B | Bar | Dia=8~100mm | L=50~1000 |