Alkrothal 720 No.1 Jr.kwa resistor ya kuvunja
Maombi ya kawaida ya alkrothal 720 yapo kwenye rheostats, wapinzani wa kuvunja, nk Pia hutumiwa kama vitu vya kupokanzwa umeme katika matumizi ya viwandani.
Alkrothal 720 ni alloy ya chuma-chromium-aluminium (fecral alloy) kwa matumizi ya joto hadi 1000 ° C (1830 ° F).
Uchambuzi wa kawaida
Cr | Al | Fe |
12.0 ~ 15.0 | 4.0 ~ 6.0 | Usawa |
Mali ya mitambo
Max inayoendelea joto la huduma: Uboreshaji 20ºC: Uzito: Utaratibu wa mafuta: Mgawo wa upanuzi wa mafuta: Hatua ya kuyeyuka: Elongation: Muundo wa Micrographic: Mali ya sumaku: | 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 sumaku |
Saizi: unene 0.01-7mm, upana 0.5-1000mm
Uso: BA, 2b
Ugumu: laini, nusu ngumu, ngumu
Imetumika sana kama resisor kubwa ya nguvu ya kuvunja na vitu vya kupokanzwa tanuru.
Inayo nguvu kidogo ya moto kuliko aloi za tophet lakini kiwango cha juu zaidi cha kuyeyuka.
Shanghai Tankii Alloy nyenzo Co, Ltd.
Mtayarishaji wa aloi na alchrome nchini China, mtaalamu zaidi ulimwenguni
Tunazalisha pia chini ya darasa:
0Cr15Al5 na 0Cr19Al3, nk.
Muundo wa kemikali na mali kuu ya aloi ya Fe-Cr-al | ||||||||
Daraja la mali | 1CR13Al4 | 0cr25al5 | 0cr21al6 | 0cr23Al5 | 0cr21Al4 | 0cr21al6nb | 0CR27Al7MO2 | |
Muundo kuu wa kemikali (%) | 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 | nafasi | nafasi | nafasi | nafasi | nafasi | nafasi | nafasi | |
Fe | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | |
NB0.5 | MO1.8-2.2 | |||||||
Max inayoendelea joto la huduma (OC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Urekebishaji 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 | |
Uzani (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
Uboreshaji wa mafuta | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
(KJ/M@H@OC) | ||||||||
Mgawo wa upanuzi wa mafuta (α × 10-6/oc) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
Takriban kiwango cha kuyeyuka (OC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
Nguvu tensile (n/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
Elongation (%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | > 10 | |
Tofauti ya sehemu | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Kiwango cha kupungua (%) | ||||||||
Kurudia frequency mara kwa mara (f/r) | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | |
Ugumu (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
Wakati unaoendelea wa huduma | no | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
Muundo wa Micrographic | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
Mali ya sumaku | Sumaku | Sumaku | Sumaku | Sumaku | Sumaku | Sumaku | Sumaku |