Alkrothal 720 No.1 JR FeCrAl Alloy ya brake resistor
Alkrothal 720 No.1 JRkwa brake resistor
Zomwe zimagwiritsidwa ntchito pa Alkrothal 720 zili mu rheostats, braking resistors, etc. Amagwiritsidwanso ntchito ngati magetsi opangira magetsi m'mafakitale.
Alkrothal 720 ndi ferritic iron-chromium-aluminium alloy (FeCrAl alloy) yogwiritsidwa ntchito pa kutentha mpaka 1000 ° C (1830 ° F).
Kusanthula mwadzina
| Cr | Al | Fe |
| 12.0-15.0 | 4.0-6.0 | Kusamala |
Mechanical Properties
| Kutentha Kwambiri kwa Utumiki: Resisivity 20ºC: Kachulukidwe: Thermal Conductivity: Coefficient of Thermal Expansion: Melting Point: Elongation: Kapangidwe ka Micrographic: Katundu Wamaginito: | 950ºC 1.25ohm mm2/m 7.40g/cm3 52.7 KJ/m·h·ºC 15.4×10-6/ºC (20ºC~1000ºC) 1450ºC Zochepera 16% Ferrite maginito |
Kukula: Makulidwe 0.01-7mm, m'lifupi 0.5-1000mm
Pamwamba: BA, 2B
Kuuma: Kufewa, Kuvuta Kwambiri, Kulimba
Zakhala zikugwiritsidwa ntchito kwambiri ngati mphamvu yayikulu yopangira ma brake resior ndi zida zowotcha ng'anjo.
Imakhala ndi mphamvu zotentha pang'ono kuposa ma aloyi a Tophet koma malo osungunuka kwambiri.
Malingaliro a kampani Shanghai TANKII ALOY MATERIAL Co., Ltd.
WOPHUNZITSA FECRAL NDI ALCHROME Alloy ku China, WAKHALIDWE KWAMBIRI PADZIKO LAPANSI
Timapanganso ma grade pansipa:
0Cr15Al5 ndi 0Cr19Al3, ndi zina zotero.
| Mapangidwe a Chemical ndi Main Property ya Fe-Cr-Al Resistance Alloy | ||||||||
| Katundu kagawo | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | Mtengo wa 0Cr21Al6Nb | Chithunzi cha 0Cr27Al7Mo2 | |
| Main Chemical Composition (%) | 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 | mwayi | mwayi | mwayi | mwayi | mwayi | mwayi | mwayi | |
| Fe | Bali. | Bali. | Bali. | Bali. | Bali. | Bali. | Bali. | |
| Nd0.5 | Mo1.8-2.2 | |||||||
| Kutentha Kwambiri Kwambiri kwa Service(oC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resisivity 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 | |
| Kachulukidwe (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
| Thermal Conductivity | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| (KJ/m@h@oC) | ||||||||
| Coefficient of Thermal Expansion(α×10-6/oC) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
| Pafupifupi Melting Point (oC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Kulimbitsa Thupi (N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Kutalikira (%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | >10 | |
| Kusintha kwa Gawo | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Mtengo Wochepa (%) | ||||||||
| Bend Frequency (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Kulimba (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Nthawi Yopitilira Ntchito | no | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
| Kapangidwe ka Micrographic | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Maginito Katundu | Maginito | Maginito | Maginito | Maginito | Maginito | Maginito | Maginito | |
