Nikel xrom qotishma sim Ni70Cr30
Nikel-xrom qotishma simNi70Cr30
Cr30Ni70 nikrom qotishma elektrotermik lenta, isitish elementi uchun sable qarshilik,
NiCr70/30
Temir qarshilik elektrotermik yuqori qarshilik bilan nikel xrom qotishmasi, sirt tanasi jinsiy quduq.Yuqori harorat va yuqori intensivlikda,
va yaxshi ishlash va qayta ishlash tabiatda keng qo'llaniladigan metallurgiya, elektr, mexanik komponentlar va elektrni payvandlashi mumkin.
issiqlikka chidamli materialni ishlab chiqarish uchun ishlab chiqarish sanoati.
NiCr turi: Cr20Ni80, Cr15Ni60, Cr20Ni35, Cr20Ni30, Cr25Ni20 va boshqalar. Seriyali elektr tekis kamar, elektr yong'in simi.
3.Mahsulot hajmi:
Qalinligi: 0,02-4,0 mm
Kengligi: 2,5-250 mm
Standart: GB1234-95
Yorqin va silliq sirt
Ni70Cr30
Kimyoviy tarkib, %
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Boshqa |
| Maks | |||||||||
| 0,08 | 0,02 | 0,015 | 0,60 | 0,75 ~ 1,60 | 28,0 ~ 31,0 | Bal. | Maksimal 0,50 | Maksimal 1.0 | - |
Mexanik xususiyatlar
| Maksimal uzluksiz xizmat ko'rsatish harorati: Qarshilik (20ºC)/Ō·m::Zichlik: Issiqlik o'tkazuvchanligi: Issiqlik kengayish koeffitsienti: Erish nuqtasi: Uzayish: Mikrografik tuzilma: Magnit xususiyat: | 1250ºC 1,18 +/-0,05 (dia: <0,5 mm) 1,20+/-0,05 (Dia: ≥0,50 mm) 8,1 g/sm3 45,2 KJ/m·soat·ºC 17×10-6/ºC (20ºC~1000ºC) 1380ºC Minimal 20% Ostenit magnit bo'lmagan |
| Turi | Cr20Ni80 | Cr15Ni60 | Cr30Ni70 | Cr20Ni35 | Cr20Ni30 | |
| Asosiy kimyoviy tarkibi | Ni | Dam olish | 55,0 ~ 61,0 | Dam olish | 34,0 ~ 37,0 | 30,0 ~ 34,0 |
| Cr | 20,0 ~ 23,0 | 15,0 ~ 18,0 | 28,0 ~ 31,0 | 18,0 ~ 21,0 | 18,0 ~ 21,0 | |
| Fe | ≤1 | Dam olish | ≤1 | Dam olish | Dam olish | |
| Maksimal harorat (ºC) | 1200 | 1150 | 1250 | 1100 | 1100 | |
| Qarshilik Haroratni tuzatish koeffitsienti.(CT) | 1,09±0,05 | 1,11±0,05 | 1,18±0,05 | 1,04±0,05 | 1,06±0,05 | |
| Erish nuqtasi (ºC) | 1400 | 1390 | 1380 | 1390 | 1390 | |
| Qarshilik20ºC (10-6Ō.m) | 800ºC | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
| 1000ºC | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
| 1200ºC | 1.025 | 1.043 | ||||
| Tez hayot qiymati | Temp.(ºC) | 1175 | 1100 | 1200 | 1050 | 1050 |
| soat(soat) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
| O'ziga xos tortishish (g/sm3) | 8.40 | 8.2 | 8.1 | 7.90 | 7.90 | |
| Uzayish (%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
| Termal (kj/mhºC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Maxsus issiqlik (20ºC)j/g.ºC | 0,440 | 0,494 | 0,461 | 0,500 | 0,500 | |
| Kuchni kengaytiring (20~1000ºC)a*10-6ºC | 18.0 | 17.0 | 17.1 | 19.0 | 19.0 | |
| Kuchlanish kuchi (kg/mm2) | >85 | >85 | >85 | >85 | >85 | |
| Takroriy egilish (F/R) | >12 | >12 | >12 | >12 | >12 | |
| Mikro tuzilma | Ostenitik | Ostenitik | Ostenitik | Ostenitik | Ostenitik | |
