Isitish elementlari uchun ishlatiladigan 0,05 mm dan 10 mm gacha FeCrAl qotishma qarshilik simi (CrAl 25/5)
Isitishga chidamli sim / Xitoy ishlab chiqaruvchisi
Nominal tahlil
20.00 Cr, 5.00 Al, Bal. Fe
Maksimal uzluksiz ish harorati: 1250 º C.
Erish harorati: 1500 º C
Elektr qarshiligi: 1,4 ohm mm2 / m
Sanoat pechlari va elektr pechlarida 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 eng professional alxrom va najasli qotishma ishlab chiqaruvchisi
Shuningdek, biz sanoat talabi uchun CrAl 14/4, CrAl 19/3 va boshqa turdagi qarshilik simlarini ishlab chiqaramiz.
Fe-Cr-Al qarshilik qotishmasining kimyoviy tarkibi va asosiy xususiyati | Xususiyatlar \ daraja | 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 (Oh mm2/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 | |
Oldingi: Kvarts lampasi Kvars isitgichi Karbonli infraqizil chiroq infraqizil lampalar Oq aks ettiruvchi infraqizil naycha Keyingisi: Dazmol xrom alyuminiy sim (CrAl 25-5) 0,5 mm, DIN250 g'altak bilan