Hlau npib tsib xee alloy tau txais ntawm qhov kub thiab txias los ntawm kev kho cov ntsiab lus ntawm npib tsib xee sab hauv lub zog thiab kev nthuav dav coefficient ntawm cov iav sib txawv thiab cov iav sib xyaw ua ke ntawm kev nthuav dav hlau, nws qhov nthuav dav coefficient thiab Curie kub nce nrog qhov nce ntawm cov ntsiab lus nickel.Qhov sib dhos yog dav siv nyob rau hauv hluav taws xob nqus kev lag luam lub sealing qauv ntawm cov khoom.
Chemical Composition nyob rau hauv %, Invar
hom | Tshuaj muaj pes tsawg leeg | ||||||||
Ni | Fe | C | P | Si | Co | Mn | Al | S | |
≤ | |||||||||
4j42 ib | 41.5-42.5 Nws | Bal | 0.05 Nws | 0.02 ib | 0.3 | - | 0.80 ib | 0.10 | 0.02 ib |
4j45 ib | 44.5-45.5 Nws | Bal | 0.05 Nws | 0.02 ib | 0.3 | - | 0.80 ib | 0.10 | 0.02 ib |
4j50 ua | 49.5-50.5 Nws | Bal | 0.05 Nws | 0.02 ib | 0.3 | 1.0 | 0.80 ib | 0.10 | 0.02 ib |
4j52 ib | 51.5 ~ 52.5 hli | Bal | 0.05 Nws | 0.02 ib | 0.3 | - | 0.60 ib | - | 0.02 ib |
4j54 ua | 53.5-54.5 Nws | Bal | 0.05 Nws | 0.02 ib | 0.3 | - | 0.60 ib | - | 0.02 ib |
Basic lub cev tsis tu ncua thiab mechanical zog ntawm cov alloy:
hom | Thermal conductivity | Tshwj xeeb kub muaj peev xwm | Qhov ntom | Hluav taws xob resistivity | Curie point |
4j52 ib | 16.7 ib | 502j ua | 8.25 Nws | 0.43 ib | 520 |
Tus cwj pwm nthuav dav (10 -6 / ºC) | ||||||||
Qhov kub thiab txias | 20-100 Nws | 20-200 Nws | 20-300 Nws | 20-350 Nws | 20-400 Nws | 20-450 Nws | 20-500 Nws | 20-600 Nws |
Expansion coefficient | 10.3 | 10.4 | 10.2 | 10.3 | 10.3 | 10.3 | 10.8 | 11.2 |
4 j52 alloy feem ntau yog siv rau thiab mos lead iav sealing, me me raj fuses.