NI90CR10 NICR 90/10 Nickel Chrome Alloy Wire Chromel Alumel Thermocouple Sehemu za kichwa
NI90CR10 NICR90/10 Nickel Chrome Alloy Wirewaya wa nichromeSehemu za kichwa cha thermocouple
Mtoaji wa China Nichrome 90 NI90
NI90CR10 ni aloi ya austenitic nickel-chromium (NICR alloy) kwa matumizi ya joto hadi 1200 ° C (2190 ° F). Aloi ni sifa ya resisization ya juu, upinzani mzuri wa oxidation na utulivu mzuri wa fomu. Inayo ductility nzuri baada ya matumizi na weldability bora.
NI90CR10 hutumiwa kwa vitu vya kupokanzwa umeme katika vifaa vya nyumbani na vifaa vya viwandani. Maombi ya kawaida ni irons gorofa, mashine za kutuliza, hita za maji, ukingo wa plastiki hufa, chuma cha kuuza, vitu vya chuma vilivyotiwa na vitu vya cartridge.
Kwa sababu ya mali nzuri ya kujitoa kwa oksidi ya uso, NI90C10 hutoa maisha bora ya huduma ikilinganishwa na aloi za ushindani za nickel-chromium.
| Nyenzo za utendaji | NI90Cr10 | NI80Cr20 | NI70Cr30 | NI60Cr15 | NI35Cr20 | NI30Cr20 | |
| Muundo | Ni | 90 | Pumzika | Pumzika | 55.0 ~ 61.0 | 34.0 ~ 37.0 | 30.0 ~ 34.0 |
| Cr | 10 | 20.0 ~ 23.0 | 28.0 ~ 31.0 | 15.0 ~ 18.0 | 18.0 ~ 21.0 | 18.0 ~ 21.0 | |
| Fe | ≤1.0 | ≤1.0 | Pumzika | Pumzika | Pumzika | ||
| Upeo wa jotoºC | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Uhakika wa Meltiing ºC | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Wiani G/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Resisization saa 20ºC ((μΩ · m) | 1.09 ± 0.05 | 1.18 ± 0.05 | 1.12 ± 0.05 | 1.00 ± 0.05 | 1.04 ± 0.05 | ||
| Elongation katika kupasuka | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
| Joto maalum J/G.ºC | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | ||
| Uboreshaji wa mafuta KJ/M.HºC | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | ||
| Mgawo wa upanuzi wa mistari a × 10-6/ (20 ~ 1000ºC) | 18 | 17 | 17 | 19 | 19 | ||
| Muundo wa Micrographic | Austenite | Austenite | Austenite | Austenite | Austenite | ||
| Mali ya sumaku | Isiyo ya sumaku | Isiyo ya sumaku | Isiyo ya sumaku | Sumaku dhaifu | Sumaku dhaifu | ||
saizi:
OD: 0.3-8.0mm,
| Waya za upinzani | ||
| RW30 | W.NR 1.4864 | Nickel 37%, chrome 18%, chuma 45% |
| RW41 | UNS N07041 | Nickel 50%, Chrome 19%, Cobalt 11%, Molybdenum 10%, Titanium 3% |
| RW45 | W.NR 2.0842 | Nickel 45%, shaba 55% |
| RW60 | W.NR 2.4867 | Nickel 60%, chrome 16%, chuma 24% |
| RW60 | UNS NO6004 | Nickel 60%, chrome 16%, chuma 24% |
| RW80 | W.NR 2.4869 | Nickel 80%, chrome 20% |
| RW80 | UNS NO6003 | Nickel 80%, chrome 20% |
| RW125 | W.NR 1.4725 | Iron Bal, Chrome 19%, Alumini 3% |
| RW145 | W.NR 1.4767 | Iron Bal, Chrome 20%, Aluminium 5% |
| RW155 | Iron Bal, Chrome 27%, Aluminium 7%, Molybdenum 2% | |
Chromel vs alumel hutumiwa katika oksidi, inert au kavu kupunguza anga. Mfiduo wa utupu mdogo kwa vipindi vya muda mfupi. Lazima ulindwe kutokana na mazingira ya kiberiti na ya kuongeza nguvu. Ya kuaminika na sahihi kwa joto la juu.Chromel: Chromel ni aloi ya takriban 90% nickel na chromium 10%. Inatumika kwenye utengenezaji wa conductors chanya ya aina ya ANSI E na aina ya thermocouples, vifaa vya kupima joto lenye conductors mbili tofauti.
