Okun resistance ti o ni okun jẹ ti awọn alloys Nichrome, gẹgẹbi Ni80Cr20, Ni60Cr15, ati bẹbẹ lọ O le ṣe pẹlu7 okun, 19 okun, tabi37 awọn okun, tabi awọn atunto miiran.
Okun alapapo alapapo ti okun ni ọpọlọpọ awọn anfani, gẹgẹ bi agbara abuku, iduroṣinṣin igbona, ohun kikọ ẹrọ, agbara mọnamọna ni ipo igbona ati anti-oxidization. Nichrome Wire ṣe apẹrẹ aabo ti oxide chromium nigbati o ba gbona fun igba akọkọ. Ohun elo labẹ Layer kii yoo ṣe oxidize, idilọwọ okun waya lati fifọ tabi sisun jade. Nitori idiwọ giga ti Nichrome Wire ati resistance si ifoyina ni awọn iwọn otutu giga, o jẹ lilo pupọ ni awọn eroja alapapo, alapapo ileru ina ati awọn ilana itọju ooru ni kemikali, ẹrọ, irin ati awọn ile-iṣẹ aabo.
Alloy | Standard Strand Construction, mm | Resistance,Ω/m | Strand Diamita Nominal, mm | Mita fun kilo |
NiCr 80/20 | 19×0.544 | 0.233-0.269 |
| 26 |
NiCr 80/20 | 19×0.61 | 0.205-0.250 |
|
|
NiCr 80/20 | 19×0.523 | 0.276-0.306 | 2.67 | 30 |
NiCr 80/20 | 19×0.574 |
| 2.87 | 25 |
NiCr 80/20 | 37× 0.385 | 0.248-0.302 | 2.76 | 26 |
NiCr 60/15 | 19×0.508 | 0.286-0.318 |
|
|
NiCr 60/15 | 19×0.523 | 0.276-0.304 |
| 30 |