Qimmatli qog'ozlar narxi 1mm * 10mm 0Cr25Al5 Yassi Lenta Dumaloq Burr Yorqin Yuzaki Strip
1. Kirish
FeCrAl qotishmalari keng ko'lamli yuqori haroratli ilovalarda qo'llaniladi.
Konstantan [Cu55Ni45] past haroratli qarshilik koeffitsientiga ega va mis qotishmasi sifatida osongina lehimlanadi. Boshqa doimiy qarshilikli qotishmalarga manganin [Cu86Mn12Ni2], Cupron [Cu53Ni44Mn3] va Evanohm kiradi.
Nikel-xrom qotishmalarining Evanohm oilasi [Ni72Cr20Mn4Al3Si1], [Ni73Cr20Cu2Al2Mn1Si] yuqori qarshilikka, past haroratli qarshilik koeffitsientiga, mis bilan aloqa qilganda past elektromotor kuchga (Galvani potentsialiga) ega, yuqori valentlik kuchiga ega va shuningdek, juda bardoshlidir. issiqlik bilan ishlov berish uchun.
2. Spetsifikatsiya:
Baho | Asosiy kimyoviy tarkibi | Eng yuqori harorat ℃ | Qarshilik mk.m | Erish nuqtasi ℃ | Kuchlanish kuchi N/mm² | Elogatsiya % | Ish hayoti h/℃ | Magnit xususiyatlari | |||
Cr | Al | Ni | Fe | ||||||||
OCr21Al4 | 17-21 | 3-4 | - | - | 1100 | 1,23±0,06 | 1500 | 750 | ≥12 | ≥80/1250 | magnit |
OCr25Al5 | 23-26 | 4,5-6,5 | - | - | 1250 | 1,42±0,07 | 1500 | 750 | ≥12 | ≥80/1300 | magnit |
OCr21Al6Nb | 21-23 | 5-7 | - | - | 1350 | 1,43±0,07 | 1510 | 750 | ≥12 | ≥50/1350 | magnit |
OCr27Al7Mo2 | 22-24 | 5-7 | - | - | 1400 | 1,53±0,07 | 1520 | 750 | ≥10 | ≥50/1350 | magnit |
KSC | 26,8-27,8 | 6-7 | - | - | 1350 | 1,44±0,05 | 1510 | 750 | ≥16 | ≥60/1350 | magnit |
Cr20Ni80 | 20-23 | - | Dam olish | ≤1,0 | 1200 | 1,09±0,05 | 1400 | 750 | ≥20 | ≥80/1200 | Magnit bo'lmagan |
Cr30Ni70 | 30 | - | Dam olish | ≤1,0 | 1250 | 1,18±0,05 | 1380 | 750 | ≥20 | ≥50/1250 | Magnit bo'lmagan |
Cr15Ni60 | 15-18 | - | 55 | Dam olish | 1150 | 1,12±0,05 | 1390 | 750 | ≥20 | ≥80/1150 | Magnit bo'lmagan |
Cr20Ni35 | 18-21 | - | 35 | Dam olish | 1100 | 1,04±0,05 | 1390 | 750 | ≥20 | ≥80/1100 | Zaif magnit |
Cr20Ni30 | 20 | - | 32 | Dam olish | 1100 | 1,04±0,05 | 1390 | 750 | ≥20 | ≥80/1100 | Zaif magnit |
3.
Material | Qarshilik (ohm-smil/ft) | Qarshilik (10−6ohm-sm) |
---|---|---|
alyuminiy | 15.94 | 2.650 |
Guruch | 42.1 | 7.0 |
Uglerod (amorf) | 23 | 3.95 |
Konstantan | 272,97 | 45.38 |
Mis | 10.09 | 1.678 |
Temir | 57,81 | 9.61 |
Manganin | 290 | 48.21 |
Molibden | 32.12 | 5.34 |
Nikrom | 675 | 112.2 |
Nikrom V | 650 | 108.1 |
Nikel | 41.69 | 6.93 |
Platina | 63.16 | 10.5 |
Zanglamaydigan po'lat (304) | 541 | 90 |
Chelik (0,5% uglerod) | 100 | 16.62 |
Sink | 35.49 | 5.90 |