gwifren gwresogi gwrthiant fecral ffwrnais
Aloi fe-cr-al
Bywyd gwasanaeth tymheredd uchel hirach
Gwrthiant ocsidiad uwch
Rresistance uwch
Gwifren aloi fecral pris isel o ansawdd uchel
Mae gan aloi Fe-CR-AL y nodwedd o wrthsefyll uchel, cyfernod ymwrthedd tymheredd isel, tymheredd gweithredu uchel, gwrth-ocsidiad da a gwrth-cyrydiad o dan dymheredd uchel.
Fe'i defnyddir yn helaeth mewn ffwrnais ddiwydiannol, offer cartref, ffwrnais diwydiant, meteleg, peiriannau, awyrennau, modurol, diwydiannau milwrol a diwydiannau eraill sy'n cynhyrchu elfennau gwresogi ac elfennau gwrthiant.
Mae aloi gwresogi Nichrome yn cynnwys nicel pur, aloi NICR, aloi Fe-Cr-Al ac aloi nicel copr.
Gradd Gwifren Gwrthiant Fecral: 0cr25al5, 1cr13al4, 0cr23al5, 0cr27al7mo2, 0cr21al6nb, 0cr21al4, 0cr21al6.
Ar ffurf gwifren, rhuban a stribed, un math o aloi fe-cr-al materol.
Gwifren: 0.018mm-10mm
Gwialen: 8mm-50mm
Rhuban: 0.05*0.2mm-2.0*6.0mm
Stribed: 0.5*5.0mm-5.0*250mm
Perfformiad Enwebiad Alloy | 1cr13al4 | 0cr25al5 | 0cr21al6 | 0cr23al5 | 0cr19al3 | 0cr21al6nb | 0cr27al7mo2 | |
COMPOSTION CEMEGOL (%) | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 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 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune | |
Fe | Gorffwysa ’ | Gorffwysa ’ | Gorffwysa ’ | Gorffwysa ’ | Gorffwysa ’ | Gorffwysa ’ | Gorffwysa ’ | |
- | - | - | - | - | Nb0.5 | MO1.8-2.2 | ||
Max. temp gwasanaeth parhaus. o elfen (%) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Gwrthsefyll ar 20 ℃ (μω*m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
Dwysedd (g/cm3) | 7.4 | 7.1 | 7.16 | 7.25 | 7.35 | 7.1 | 7.1 | |
Dargludedd thermol (kj/m*h*℃) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | - | |
Cyfernod ehangu llinellau (α*10-6/℃) | 15.4 | 16 | 14.7 | 15 | 13.5 | 16 | 16 | |
Pwynt toddi oddeutu (℃) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
Cryfder tynnol (n/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
Elongation ar Rupture (%) | > 16 | > 12 | > 12 | > 12 | > 12 | > 12 | > 10 | |
Amrywiad arwynebedd (%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Ailadrodd amledd plygu (f/r) | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | > 5 | |
Caledwch (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
amser gwasanaeth parhaus (oriau/℃) | - | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
Micrograffig | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
Priodweddau Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig | Magnetig |