Qarshilikni isitish qotishmasi sim
1) Sinf:Ni70cre30,Ni80cr20, Ni60cr15, ni35c20,Ni30cr20
2) Shaxsiy tavsif: di. 0,02 ~ 12mm
Qarshilikni isitish "qotishma" qotishmalari, elektrtal sim, elektr isitish simlari
Hajmi: 0.02-12mm
Kimyoviy tarkibi va xususiyatlari:
Xususiyatlar / sinf | Nikr 80/20 | Nikr 70/30 | Nikr 60/15 | Nikr 35/20 | Nikr 30/20 | |
Asosiy kimyoviy tarkibi (%) | Ni | Bal. | Bal. | 55.0-61.0 | 34.0-37.0 | 30.0-34.0 |
Cr | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | 18.0-21.0 | 18.0-21.0 | |
Fe | ≤ 1.0 | ≤ 1.0 | Bal. | Bal. | Bal. | |
Maksimal harorat (ºC) | 1200 | 1250 | 1150 | 1100 | 1100 | |
20ºC da chidamlilik (m ō · m) | 1.09 | 1.18 | 1.12 | 1.04 | 1.04 | |
Zichlik (g / sm3) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
Issiqlik o'tkazuvchanligi (KJ / m · @ºC) | 60,3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Termal kengayish koeffitsienti (a × 10-6 / ºC) | 18 | 17 | 17 | 19 | 19 | |
Eritish nuqtasi (ºC) | 1400 | 1380 yilda | 1390 yilda | 1390 yilda | 1390 yilda | |
Cho'zish (%) | > 20 | > 20 | > 20 | > 20 | > 20 | |
Mikrografik tuzilma | xiyonat | xiyonat | xiyonat | xiyonat | xiyonat | |
Magnit mulk | nomunosib | nomunosib | nomunosib | nomunosib | nomunosib |