Nikel xrom qotishmalaridan, nikel xromli temir qotishmalaridan, temir xrom alyuminiy qotishmalaridan, mis nikel qotishmalaridan tayyorlangan qarshilik simi.
Asosan isitgich, isitish elementi va rezistor va boshqalarda ishlatiladi.
NiCr 80/20, NiCr 70/30, NiCr 60/15, NiCr 35/20
FeCrAl15-5, FeCrAl20-5, FeCrAl 25-5 va boshqalar ...
Konstantan, qotishma 30, qotishma 60, qotishma 90 va boshqalar.
0,02 u ohm / m-1,53 u ohm / m dan elektr qarshiligi
Ishlash harorati 200 C dan 1400 C gacha
Agar biron bir savol bo'lsa, Pls biz bilan bog'lanishingiz mumkin.
NiCr:
RESISTOHM 20, RESISTOHM 30, RESISTOHM 40, RESISTOHM 60, RESISTOHM 70, RESISTOHM 80
FeCrAl:
RESISTOHM 125, RESISTOHM 135, RESISTOHM 140,
RESISTOHM 145, RESISTOHM 153
CuNi
Konstantan, Kuprotal 5, Kuprotal 10, Kuprotal 15, Kuprotal 30, Evrika
FeCrAl qotishma darajasi | Kimyoviy tarkibi % | |||||||||
C | P | S | Mn | Si | Cr | Ni | Al | Fe | Re | Boshqalar |
maksimal(≤) | ||||||||||
1Cr13Al4 | 0,12 | 0,025 | 0,025 | 0,7 | ≤1,00 | 12,5-15,0 | —- | 3,5-4,5 | 0.1 | Bal. |
0Cr15Al5 | 0,12 | 0,025 | 0,025 | 0,7 | ≤1,00 | 14,5-15,5 | —- | 4,5-5,3 | 0.1 | Bal. |
0Cr25Al5 | 0,06 | 0,025 | 0,025 | 0,7 | ≤0,60 | 23,0-26,0 | ≤0,60 | 4,5-6,5 | 0.1 | Bal. |
0Cr23Al5 | 0,06 | 0,025 | 0,025 | 0,7 | ≤0,60 | 20,5-23,5 | ≤0,60 | 4.2-5.3 | 0.1 | Bal. |
0Cr21Al6 | 0,06 | 0,025 | 0,025 | 0,7 | ≤1,00 | 19,0-22,0 | ≤0,60 | 5,0-7,0 | 0.1 | Bal. |
0Cr21Al4 | 0,06 | 0,025 | 0,025 | 0,7 | ≤1,00 | 21,0-23,0 | ≤0,60 | 3,0-5,2 | 0.1 | Bal. |
0Cr21Al6Nb | 0,05 | 0,025 | 0,025 | 0,7 | ≤0,60 | 21,0-23,0 | ≤0,60 | 5,0-7,0 | 0.1 | Bal. |
0Cr27Al7Mo2 | 0,05 | 0,025 | 0,025 | 0,7 | ≤0,40 | 26,5-27,8 | ≤0,60 | 6,0-7,0 | 0.1 | Bal. |
Kimyoviy tarkibi va xossalari:
Xususiyatlar/baho | NiCr 80/20 | NiCr 70/30 | NiCr 60/15 | NiCr 35/20 | NiCr 30/20 | |
Asosiy kimyoviy Tarkibi (%) | Ni | Bal. | Bal. | 55,0-61,0 | 34,0-37,0 | 30,0-34,0 |
Cr | 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 | Bal. | Bal. | Bal. | |
Maksimal ishlash Harorat (ºC) | 1200 | 1250 | 1150 | 1100 | 1100 | |
20ºC da qarshilik (m Ō · m) | 1.09 | 1.18 | 1.12 | 1.04 | 1.04 | |
Zichlik (g/sm3) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
Issiqlik o'tkazuvchanligi (KJ/m· h· ºC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Issiqlik koeffitsienti Kengayish (a × 10-6/ºC) | 18 | 17 | 17 | 19 | 19 | |
Erish nuqtasi (ºC) | 1400 | 1380 | 1390 | 1390 | 1390 | |
Uzayish (%) | > 20 | > 20 | > 20 | > 20 | > 20 | |
Mikrografik tuzilma | ostenit | ostenit | ostenit | ostenit | ostenit | |
Magnit xususiyat | magnit bo'lmagan | magnit bo'lmagan | magnit bo'lmagan | magnit bo'lmagan | magnit bo'lmagan |
CuNi qotishmalari darajasi | Elektr qarshiligi (20 daraja mm² /m) | qarshilikning harorat koeffitsienti (10^6/daraja) | Zichlik g/mm² | Maks. harorat (daraja) | Erish nuqtasi (daraja) |
CuNi1 | 0,03 | < 1000 | 8.9 | 200 | 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 |
CuNi22 | 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 | 0,50 | < -6 | 8.9 | 400 | 1280 |