Invar/ Vacodil36/Feni36Uaea mo Fa'amau Fa'ailoga
Fa'avasegaina: fa'aitiitiga maualalo ole fa'alautelega fa'avela
Fa'aoga: E fa'aoga le Invar pe a mana'omia le mautu maualuga, e pei o meafaigāluega sa'o, uati, fua fetolofi seismic, fa'ava'a fa'aata-matagi televise, va'a i afi, ma va'aiga fa'amaneta. I le fuaina o fanua, pe a faia le tulaga muamua (maualuga-saʻo) le maualuga maualuga, o laʻau faʻaogaina e faia i le Invar, nai lo laupapa, fiberglass, poʻo isi metala. Sa fa'aogaina fa'alava invar i nisi piston e fa'atapula'a ai lo latou fa'alauteleina o le vevela i totonu o latou po'o.
Fuainumera Fa'ainumera i%, Invar
Ni 35-37% | Fe . | C 0.05% | Si 0.3% | Mn 0,3-0,6 % | S o 0.015% |
P 0.015% | Mo 0.1% | V 0.1% | Al 0.1% | Cu 0.1% | Cr 0,15 % |
Fa'amaumau fa'aletino ma mea fa'ainisinia o le u'amea:
Malosi: γ = 8,1 g / cm3;
Tete'e eletise: ρ = 0,78 ohm mm2 ? / m;
Le vevela o le Curie point: Θs = 230 ° C;
Modulus o elasticity E = 144 kN / mm2;
Fa'atele fa'alautele laina a1 (20-100 ºC) ≤1,5 * 10-6 ºC -1
Va'a vevela/ºC | 1/10-6ºC-1 | Va'a vevela/ºC | 1/10-6ºC-1 |
20~-60 | 1.8 | 20~250 | 3.6 |
20~-40 | 1.8 | 20~300 | 5.2 |
20~-20 | 1.6 | 20~350 | 6.5 |
20~0 | 1.6 | 20~400 | 7.8 |
20~50 | 1.1 | 20~450 | 8.9 |
20~100 | 1.4 | 20~500 | 9.7 |
20~150 | 1.9 | 20~550 | 10.4 |
20~200 | 2.5 | 20~600 | 11 |