Alkrothal 720 No.1 JR FeCrAl Alloy no ka pale pale
Alkrothal 720 Helu 1 JRno ka pale pale
ʻO nā noi maʻamau no Alkrothal 720 aia i nā rheostats, nā pale pale braking, a me nā mea ʻē aʻe.
ʻO Alkrothal 720 kahi mea hao-chromium-aluminium alloy (FeCrAl alloy) no ka hoʻohana ʻana i nā mahana a hiki i 1000°C (1830°F).
Nominal Analysis
| Cr | Al | Fe |
| 12.0~15.0 | 4.0~6.0 | Kaulike |
Na Waiwai Mechanical
| ʻO ka wela o ka lawelawe mau loa: 20ºC ke kū'ē: ʻAiʻa: ʻO ka wela wela: Coefficient o ka hoonui wela: Lae hehee: Elongation: Hanana Micrographic: Mea Mākēneki: | 950ºC 1.25ohm mm2/m 7.40g/cm3 52.7 KJ/m·h·ºC 15.4×10-6/ºC (20ºC~1000ºC) 1450ºC Min 16% Ferrite mākia |
Nui: Manoanoa 0.01-7mm, laula 0.5-1000mm
Ili: BA, 2B
ʻOʻoleʻa: palupalu, Hapa paʻakikī, paʻakikī
Ua hoʻohana nui ʻia e like me ka resisor brake mana nui a me nā mea hoʻomehana umu.
He ʻuʻuku ka ikaika wela ma mua o nā alloys Tophet akā ʻoi aku ka kiʻekiʻe o ka helu heheʻe.
Shanghai TANKII ALLOY MATERIAL Co., Ltd.
FECRAL A ME ALCHROME ALLOY mea hana ma Kina, ka oi loa aku o ka oihana ma ka honua.
Hoʻopuka pū mākou i nā papa ma lalo:
0Cr15Al5 a me 0Cr19Al3, etc.
| Hoʻohui Kemika a me ka waiwai nui o Fe-Cr-Al Resistance Alloy | ||||||||
| Papa Waiwai | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Hui Kemika Nui (%) | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 22.5-24.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| Re | kūpono | kūpono | kūpono | kūpono | kūpono | kūpono | kūpono | |
| Fe | ʻO Bal. | ʻO Bal. | ʻO Bal. | ʻO Bal. | ʻO Bal. | ʻO Bal. | ʻO Bal. | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| ʻO ka wela o ka lawelawe mau loa (oC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Kū'ē 20oC (Ωmm2/m) | 1.25 ±0.08 | 1.42 ±0.06 | 1.42 ±0.07 | 1.35 ±0.07 | 1.23 ±0.07 | 1.45 ±0.07 | 1.53 ±0.07 | |
| Māmā (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| ʻO ka hoʻoili wela | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| (KJ/m@h@oC) | ||||||||
| Coefficient o ka hoonui wela(α×10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Kakahi hehee (oC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Ikaika U'i (N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Elongation(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Hoʻololi ʻāpana | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Hoʻemi ʻia (%) | ||||||||
| Piʻo pinepine pinepine ʻia (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Paʻakiki (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Manawa lawelawe mau | no | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
| Hoʻolālā Micrographic | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Waiwai Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
