Alkrothal 720 №1 JRtormoz qarshiligi uchun
Alkrothal 720 uchun odatiy ilovalar reostatlar, tormoz rezistorlari va boshqalarda. Bundan tashqari, sanoat ilovalarida elektr isitish elementlari sifatida ishlatiladi.
Alkrothal 720 - ferritli temir-xrom-alyuminiy qotishmasi (FeCrAl qotishmasi) 1000 ° C (1830 ° F) gacha bo'lgan haroratlarda foydalanish uchun.
Nominal tahlil
Cr | Al | Fe |
12,0 ~ 15,0 | 4,0 ~ 6,0 | Balans |
Mexanik xususiyatlar
Maksimal uzluksiz xizmat ko'rsatish harorati: Qarshilik 20ºC: Zichlik: Issiqlik o'tkazuvchanligi: Issiqlik kengayish koeffitsienti: Erish nuqtasi: Uzayish: Mikrografik tuzilma: Magnit xususiyat: | 950ºC 1,25ohm mm2/m 7,40 g/sm3 52,7 KJ/m·soat·ºC 15,4×10-6/ºC (20ºC~1000ºC) 1450ºC Minimal 16% Ferrit magnit |
Hajmi: Qalinligi 0,01-7 mm, kengligi 0,5-1000 mm
Yuzaki: BA, 2B
Qattiqlik: yumshoq, yarim qattiq, qattiq
Katta quvvatli tormoz rezistori va o'choq isitish elementlari sifatida keng qo'llanilgan.
Tophet qotishmalariga qaraganda kamroq issiq quvvatga ega, ammo erish nuqtasi ancha yuqori.
Shanxay TANKII ALLOY MATERIAL Co., Ltd.
Xitoyda najas va alxrom qotishmalari ishlab chiqaruvchisi, dunyodagi eng professional
Shuningdek, biz quyidagi navlarni ishlab chiqaramiz:
0Cr15Al5 va 0Cr19Al3 va boshqalar.
Fe-Cr-Al qarshilik qotishmasining kimyoviy tarkibi va asosiy xususiyati | ||||||||
Xususiyat darajasi | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
Asosiy kimyoviy tarkibi (%) | Cr | 12,0-15,0 | 23,0-26,0 | 19,0-22,0 | 22,5-24,5 | 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 | 4,2-5,0 | 3,0-4,2 | 5,0-7,0 | 6,0-7,0 | |
Re | qulay | qulay | qulay | qulay | qulay | qulay | qulay | |
Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
Nb0.5 | Oy 1,8-2,2 | |||||||
Maksimal uzluksiz xizmat harorati (oC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Qarshilik 20oC (Omm2/m) | 1.25 ±0,08 | 1.42 ±0,06 | 1.42 ±0,07 | 1.35 ±0,07 | 1.23 ±0,07 | 1.45 ±0,07 | 1.53 ±0,07 | |
Zichlik (g/sm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
Issiqlik o'tkazuvchanligi | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
(KJ/m@h@oC) | ||||||||
Issiqlik kengayish koeffitsienti (a×10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
Taxminiy erish nuqtasi (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 | |
Uzayish (%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
Bo'limning o'zgarishi | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Qisqartirish darajasi (%) | ||||||||
Takroriy egilish chastotasi (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
Qattiqlik (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
Uzluksiz xizmat ko'rsatish vaqti | no | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
Mikrografik tuzilma | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | Ferrit | |
Magnit xususiyat | Magnit | Magnit | Magnit | Magnit | Magnit | Magnit | Magnit |