Ni90Cr10 NiCr 90/10 Nickel Chrome Alloy Hlau chromel Alumel Thermocouple Lub Taub Hau
Ni90Cr10 NiCr90/10 nickel chrome alloy hlaunichrome hlauthermocouple taub hau qhov chaw
Tuam Tshoj tus neeg muag khoom nichrome 90 Ni90
Ni90Cr10 yog ib qho austenitic nickel-chromium alloy (NiCr alloy) siv rau qhov kub txog li 1200 ° C (2190 ° F). Cov hlau yog tus cwj pwm los ntawm kev tiv thaiv siab, zoo oxidation tsis kam thiab zoo heev daim ntawv stability. Nws muaj ductility zoo tom qab siv thiab zoo weldability.
Ni90Cr10 yog siv rau cov khoom siv hluav taws xob cua sov hauv cov khoom siv hauv tsev thiab cov khoom siv hluav taws xob. Cov ntawv thov yog cov hlau tiaj tus, lub tshuab ironing, lub tshuab rhaub dej, yas molding tuag, soldering hlau, hlau sheathed tubular cov ntsiab lus thiab cov khoom cartridge.
Vim muaj cov khoom adhesion zoo heev ntawm qhov chaw oxide, Ni90C10 muaj kev pabcuam zoo tshaj plaws rau kev sib tw npib tsib xee-chromium alloys.
| Cov khoom siv ua haujlwm | Ni90Cr 10 | Ni80Cr 20 | Ni 70Cr 30 | Ni60Cr 15 | Ni 35Cr 20 | Ni 30Cr 20 | |
| Kev sib xyaw | Ni | 90 | So | So | 55.0 ~ 61.0 | 34.0-37.0 Nws | 30.0-34.0 Nws |
| Cr | 10 | 20.0-23.0 Nws | 28.0-31.0 Nws | 15.0-18.0 Nws | 18.0-21.0 Nws | 18.0-21.0 Nws | |
| Fe | ≤1.0 | ≤1.0 | So | So | So | ||
| Qhov kub siab tshaj ºC | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Meltiing point ºC | 1400 | 1400 | 1380 | 1390 ib | 1390 ib | 1390 ib | |
| Qhov ceev g / cm3 | 8.7 ib | 8.4 | 8.1 | 8.2 | 7.9 ib | 7.9 ib | |
| Resistivity ntawm 20ºC ((μΩ·m) | 1.09 ± 0.05 | 1.18 ± 0.05 | 1.12 ± 0.05 | 1.00 ± 0.05 | 1.04 ± 0.05 | ||
| Elongation ntawm rupture | ≥ 20 | ≥ 20 | ≥ 20 | ≥ 20 | ≥ 20 | ≥ 20 | |
| Tshwj xeeb kub J/g.ºC | 0.44 ib | 0.461 ib | 0.494 ib | 0.5 | 0.5 | ||
| Thermal conductivity KJ/m.hºC | 60.3 | 45.2 ib | 45.2 ib | 43.8 ib | 43.8 ib | ||
| Coefficient ntawm kab expansion ib × 10-6 / (20 ~ 1000ºC) | 18 | 17 | 17 | 19 | 19 | ||
| Micrographic qauv | Austenite | Austenite | Austenite | Austenite | Austenite | ||
| Cov khoom sib nqus | Tsis-magnetic | Tsis-magnetic | Tsis-magnetic | Tsis muaj zog hlau nplaum | Tsis muaj zog hlau nplaum | ||
loj:
OD: 0.3-8.0 hli
| Resistance Hlau | ||
| RWM 30 | wb 1.4864 | Nickel 37%, Chrome 18%, Hlau 45% |
| RWB 41 | UNS N07041 | Nickel 50%, Chrome 19%, Cobalt 11%, Molybdenum 10%, Titanium 3% |
| RWB 45 | wb 2.0842 | Nickel 45%, tooj liab 55% |
| RWM 60 | wb 2.4867 | Nickel 60%, Chrome 16%, Hlau 24% |
| RWM 60 | UNS Nr 6004 | Nickel 60%, Chrome 16%, Hlau 24% |
| RWB 80 | wb 2.4869 | Nickel 80%, Chrome 20% |
| RWB 80 | UNS Nr 6003 | Nickel 80%, Chrome 20% |
| RWB 125 | wb 1.4725 | Hlau BAL, Chrome 19%, Aluminium 3% |
| RWB 145 | wb 1.4767 | Hlau BAL, Chrome 20%, Aluminium 5% |
| RWB 155 | Hlau BAL, Chrome 27%, Aluminium 7%, Molybdenum 2% | |
CHROMEL vs ALUMEL yog siv nyob rau hauv oxidizing, inert los yog qhuav txo cua. Lub tshuab nqus tsev raug txwv rau lub sijhawm luv luv. Yuav tsum tau tiv thaiv los ntawm sulfurous thiab marginally oxidizing cua. Kev ntseeg tau thiab raug ntawm qhov kub thiab txias.Chromel: Chromel yog ib qho alloy ntawm kwv yees li 90% npib tsib xee thiab 10% chromium. Nws yog siv los ntawm kev tsim cov khoom zoo ntawm ANSI Hom E thiab Hom K thermocouples, cov cuab yeej ntsuas kub uas muaj ob qhov sib txawv.
