Stranded resistance wire yog ua los ntawm Nichrome alloys, xws li Ni80Cr20, Ni60Cr15, thiab lwm yam. Nws tuaj yeem ua nrog 7 strands, 19 strands, los yog 37 strands, los yog lwm yam configurations.
Stranded kuj cua sov hlau muaj ntau yam zoo, xws li deformation peev xwm, thermal stability, mechanical character, shockproof muaj peev xwm nyob rau hauv thermal xeev thiab anti-oxidization. Nichrome Hlau tsim ib txheej tiv thaiv ntawm chromium oxide thaum nws yog rhuab rau thawj zaug. Cov khoom hauv qab txheej yuav tsis oxidize, tiv thaiv cov hlau los ntawm kev tawg lossis hlawv. Vim Nichrome Hlau kuj muaj zog tiv taus thiab tsis kam mus rau oxidation ntawm qhov kub thiab txias, nws yog dav siv nyob rau hauv cov cua kub ntsiab lus, hluav taws xob cua sov cua sov thiab cua sov txheej txheem nyob rau hauv cov tshuaj, mechanical, metallurgical thiab tiv thaiv industries,
Performance\ khoom | Cr20 Ni80 | |
Kev sib xyaw | Ni | So |
Cr | 20.0-23.0 Nws | |
Fe | ≤1.0 | |
Qhov kub siab tshaj ℃ | 1200 | |
Melting point ℃ | 1400 | |
Qhov ceev g / cm3 | 8.4 | |
Kev tiv thaiv | 1.09 ± 0.05 | |
μΩ·m, 20 ℃ | ||
Elongation ntawm rupture | ≥ 20 | |
Tshwj xeeb kub | 0.44 ib | |
J/g ℃ | ||
Thermal conductivity | 60.3 | |
KJ/mh ℃ | ||
Coefficient ntawm kab expansion | 18 | |
a × 10-6 / ℃ | ||
(20 ~ 1000 ℃) | ||
Micrographic qauv | Austenite | |
Cov khoom sib nqus | Nonmagnetic |