FeCrAl qotishmasi 0cr21al6Nb spiral elektr hiln isitish batareyasi isitish elementi
FeCrAl qotishmasi 0cr21al6Nb spiral elektr hiln isitish batareyasi isitish elementi
0Cr21Al6Nb1350 ° C (2550 ° F) gacha bo'lgan haroratlarda foydalanish uchun temir-xrom-alyuminiy qotishmasi (FeCrAl qotishmasi).Yuqori qarshilik, past haroratli elektr qarshilik koeffitsienti, yuqori ish harorati, yuqori haroratda yaxshi oksidlanish qarshiligi xususiyatlariga ega qotishma.U kanthal A1, Alloy875, Resistohm 145, Aluchrom0, Alchrome875, MWS-875, Stablohm875 ga teng bo'lishi mumkin.
U sanoat elektr pechlarida, maishiy elektr jihozlarida va uzoq infraqizil nurlanish qurilmalarida keng qo'llaniladi.
Panelli isitgichlar, infraqizil isitgichlar, isitish plitalari, kartrijli isitgichlar, saqlash isitgichlari, pishirish plitalari uchun keramik isitgichlar, pech elementlari, radiatorlar, kosmik isitish uchun kvarts trubkali isitgichlar, tushdi mashinasi, toster pechlari, sanoat infraqizil quritgichlar, qolipli keramika bobinlari keramik plitalar va boshqalar bilan pishirish plitalari uchun tolalar.
| Qotishma nomenklaturasining ishlashi | 1Cr13AL4 | 0Cr21AL6 | 0Cr21Al4 | 0Cr27Al7Mo2 | ||||
| Asosiy kimyoviy tarkibi | Cr | 12,0-15,0 | 23,0-26,0 | 19,0-22,0 | 20,5-23,5 | 18,0-21,0 | 21,0-23,0 | 26,5-27,8 |
| Al | 4,0-6,0 | 4,5-6,5 | 5,0-7,0 | 4.2-5.3 | 3.0-4.2 | 5,0-7,0 | 6,0-7,0 | |
| Re | qulay | qulay | qulay | qulay | qulay | qulay | qulay | |
| Fe | Dam olish | Dam olish | Dam olish | Dam olish | Dam olish | Dam olish | Dam olish | |
| Nb0.5 | Oy 1,8-2,2 | |||||||
| Maks.doimiy xizmat ko'rsatish harorati.element (°C) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| 20ºC (mk·m) da qarshilik | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
| Zichlik (g/sm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Issiqlik o'tkazuvchanligi (KJ/m·h·ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | - | |
| Chiziqlar kengayish koeffitsienti (a×10-6/ºC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Erish nuqtasi taxminan (ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Kuchlanish kuchi (N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Yirilishdagi cho'zilish (%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Hududning o'zgarishi (%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Qayta egilish chastotasi (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Qattiqligi (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| uzluksiz xizmat vaqti (soat/ºC) | - | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
| Mikrografik tuzilish | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | |
| Magnit xususiyatlari | Magnit | Magnit | Magnit | Magnit | Magnit | Magnit | Magnit | |
