Ana amfani da ƙarfe mai amfani da ƙarfe mai amfani da ƙarfin juriya wajen dumama ƙarfe mai amfani da ƙarfin lantarki, da kuma sauran na'urorin lantarki masu amfani da ƙarfin lantarki mai ...
CuNi40(6J40)
ConstantanCuNi40 ne, wanda kuma aka sanya masa suna 6J40, ƙarfe ne mai juriya wanda galibi an yi shi da jan ƙarfe da nickel.
Yana da ƙarancin ƙarfin juriya, faɗin zafin aiki (ƙasa da 500), kyakkyawan kayan aiki, hana lalatawa da sauƙin walda.
Ba a haɗa shi da ƙarfe ba. Ana amfani da shi don resistor mai canzawa na lantarki da resistor mai ƙarfi,
Ana amfani da na'urori masu auna ƙarfin lantarki (potentiometers), wayoyi masu dumama, kebul na dumama da tabarmi. Ana amfani da ribbons don dumama bimetals. Wani fanni na amfani da su shine kera thermocouples saboda yana haɓaka ƙarfin lantarki mai ƙarfi (EMF) tare da sauran ƙarfe.
Jerin gami na nickel na jan ƙarfe:ConstantanCuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi44.
Babban maki da kaddarorin
| Nau'i | juriyar lantarki (20 digiriΩ) mm²/m) | ma'aunin juriya na zafin jiki (10^6/digiri) | Dazuzzuka ity g/mm² | Matsakaicin zafin jiki (°c) | Wurin narkewa (°c) |
| CuNi1 | 0.03 | <1000 | 8.9 | / | 1085 |
| CuNi2 | 0.05 | <1200 | 8.9 | 200 | 1090 |
| CuNi6 | 0.10 | <600 | 8.9 | 220 | 1095 |
| CuNi8 | 0.12 | <570 | 8.9 | 250 | 1097 |
| CuNi10 | 0.15 | <500 | 8.9 | 250 | 1100 |
| CuNi14 | 0.20 | <380 | 8.9 | 300 | 1115 |
| CuNi19 | 0.25 | <250 | 8.9 | 300 | 1135 |
| CuNi23 | 0.30 | <160 | 8.9 | 300 | 1150 |
| CuNi30 | 0.35 | <100 | 8.9 | 350 | 1170 |
| CuNi34 | 0.40 | -0 | 8.9 | 350 | 1180 |
| CuNi40 | 0.48 | ±40 | 8.9 | 400 | 1280 |
| CuNi44 | 0.49 | <-6 | 8.9 | 400 | 1280 |
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