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, 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 |