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Ukanda wa Aloi ya Kiwanda ya Nichrome ya Ni80Cr20 Ni70Cr30 Ni60Cr15 Ni35Cr20 Inatumika katika Vifaa vya Kaya
Kiwanda cha Nichrome Aloi Ukanda waNi80Cr20Ni70Cr30 Ni60Cr15 Ni35Cr20 Inatumika katika Vifaa vya Kaya
Ni70Cr30 ni aloi ya nickel-chromium austenitic inayofaa kwa matumizi ya halijoto ya hadi 1250°C. Maudhui ya juu ya chromium (30% kwa wastani) hutoa muda mzuri sana wa maisha, hasa katika programu za tanuru. Ni70Cr30 ina sifa ya upinzani wa juu, upinzani mzuri wa oxidation, ductility nzuri baada ya matumizi na weldability bora.
Ni70Cr30 hutumiwa kwa vipengele vya kupokanzwa umeme katika tanuu za viwanda. Maombi ya kawaida ni: tanuu za umeme na enamelling, hita za kuhifadhi, tanuu na tanuu zenye hali ya hewa inayobadilika.
Sifa za Kiufundi za Kawaida(1.0mm)
- Urefu: 30%
- Nguvu ya Mavuno: 420Mpa
- Nguvu ya mkazo: 810Mpa
Ukanda wa Nichrome
| Utendaji\ nyenzo | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
| 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 | ||
| Kiwango cha juu cha halijotoºC | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Kiwango myeyuko ºC | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Uzito g/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Ustahimilivu katika 20ºC((μΩ·m) | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 | ||
| Kurefusha wakati wa kupasuka | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
| Joto maalum J/g.ºC | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | ||
| Conductivity ya joto 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 | ||
| Tabia za sumaku | Isiyo ya sumaku | Isiyo ya sumaku | Isiyo ya sumaku | Nguvu ya sumaku dhaifu | Nguvu ya sumaku dhaifu | ||
| Waya za Upinzani | ||
| RW30 | W.Nr 1.4864 | Nickel 37%, Chrome 18%, Iron 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%, Iron 24% |
| RW60 | UNS NO6004 | Nickel 60%, Chrome 16%, Iron 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%, Aluminium 3% |
| RW145 | W.Nr 1.4767 | Iron BAL, Chrome 20%, Aluminium 5% |
| RW155 | Iron BAL, Chrome 27%, Aluminium 7%, Molybdenum 2% | |
Andika ujumbe wako hapa na ututumie
