Invar/ Vacodil36/Feni36Waya Wotsekera Galasi
Gulu: koyefishienti yotsika ya aloyi yowonjezera kutentha
Kugwiritsa Ntchito: Invar imagwiritsidwa ntchito pamene pakufunika kukhazikika kwapamwamba, monga zida zolondola, mawotchi, ma geji oyendera chivomerezi, mafelemu a TV shadow-mask, ma valve mu mota, ndi mawotchi oletsa maginito. Pofufuza malo, pamene kukwera kwapamwamba (kolondola kwambiri) kuyenera kuchitika, ndodo zoyendetsera zomwe zimagwiritsidwa ntchito zimapangidwa ndi Invar, m'malo mwa matabwa, fiberglass, kapena zitsulo zina. Ma strut a Invar ankagwiritsidwa ntchito m'ma pistoni ena kuti achepetse kutentha kwawo mkati mwa masilinda awo.
Kapangidwe ka Mankhwala mu %, 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% |
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Zokhazikika zakuthupi ndi mawonekedwe a makina a alloy:
Kuchuluka: γ = 8,1 g / cm3;
Kukana kwamagetsi: ρ = 0,78 ohm mm2 ? / m;
Kutentha kwa mfundo ya Curie: Θs = 230 ° C;
Modulus ya elasticity E = 144 kN / mm2;
Kuchuluka kwa kukula kwa mzere a1 (20-100 ºC) ≤1,5 * 10-6 ºC -1
| Kuchuluka kwa Kutentha/ºC | 1/10-6ºC-1 | Kuchuluka kwa Kutentha/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 |
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