Cyfansoddiad a Phriodweddau Cemegol: | |||||
Priodweddau/Gradd | NiCr 80/20 | NiCr 70/30 | NiCr 60/15 | ||
Prif Gyfansoddiad Cemegol (%) | Ni | Bal. | Bal. | 55.0-61.0 | |
Cr | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | ||
Fe | ≤ 1.0 | ≤ 1.0 | Bal. | ||
Tymheredd Gweithio Uchaf (ºC) | 1200 | 1250 | 1150 | ||
Gwrthiant ar 20ºC (μ Ω · m) | 1.09 | 1.18 | 1.12 | ||
Dwysedd (g/cm3) | 8.4 | 8.1 | 8.2 | ||
Dargludedd Thermol (KJ/m· h· ºC) | 60.3 | 45.2 | 45.2 | ||
Cyfernod Ehangu Thermol (α × 10-6/ºC) | 18 | 17 | 17 | ||
Pwynt Toddi (ºC) | 1400 | 1380 | 1390 | ||
Ymestyn (%) | > 20 | > 20 | > 20 | ||
Strwythur Micrograffig | austenit | austenit | austenit | ||
Eiddo Magnetig | anmagnetig | anmagnetig | anmagnetig | ||
Priodweddau/Gradd | NiCr 35/20 | NiCr 30/20 | Karma | Evanohm | |
Prif Gemeg | Ni | 34.0-37.0 | 30.0-34.0 | Bal | Bal |
Cyfansoddiad (%) | Cr | 18.0-21.0 | 18.0-21.0 | 19.0-21.5 | 19.0-21.5 |
Fe | Bal. | Bal. | 2.0-3.0 | - | |
Tymheredd Gweithio Uchaf (ºC) | 1100 | 1100 | 300 | 1400 | |
Gwrthiant ar 20ºC | 1.04 | 1.04 | 1.33 | 1.33 | |
(μ Ω · m) | |||||
Dwysedd (g/cm3) | 7.9 | 7.9 | 8.1 | 8.1 | |
Dargludedd Thermol | 43.8 | 43.8 | 46 | 46 | |
(KJ/m· h· ºC) | |||||
Cyfernod Thermol | 19 | 19 | - | - | |
Ehangu (α × 10-6/ºC) | |||||
Pwynt Toddi (ºC) | 1390 | 1390 | 1400 | 1400 | |
Ymestyn (%) | > 20 | > 20 | > 20 | > 20 | |
Strwythur Micrograffig | austenit | austenit | austenit | austenit | |
Eiddo Magnetig | anmagnetig | anmagnetig | anmagnetig | anmagnetig |
Priodweddau mecanyddol nodweddiadol (1.0mm)
Cyfansoddiad Cemegol | Nicel 80%, Cromiwm 20% |
Cyflwr | Lliw Gwyn/Asid/Ocsidiedig Llachar |
Diamedr | 0.018mm ~ 1.6mm mewn sbŵl, pacio 1.5mm-8mm mewn coil, 8 ~ 60mm mewn gwialen |
Gwifren Gron Nichrome | Diamedr 0.018mm ~ 10mm |
Rhuban Nichrome | Lled 5 ~ 0.5mm, trwch 0.01-2mm |
Strip Nichrome | Lled 450mm ~ 1mm, trwch 0.001m ~ 7mm |
Diamedr | Pacio 1.5mm-8mm mewn coil, 8 ~ 60mm mewn gwialen |
Gradd | Ni80Cr20, Ni70/30, Ni60Cr15, Ni60Cr23, Ni35Cr20Fe, |
Ni30Cr20 Ni80, Ni70, Ni60, Ni40, | |
Mantais | Strwythur metelegol nichrome |
yn rhoi plastigedd da iawn iddynt pan fyddant yn oer. | |
Nodweddion | Perfformiad sefydlog; Gwrth-ocsidiad; Gwrthiant cyrydiad; |
Sefydlogrwydd tymheredd uchel; Gallu ffurfio coiliau rhagorol; | |
Cyflwr arwyneb unffurf a hardd heb smotiau. | |
Defnydd | Elfennau gwresogi gwrthiant; Deunydd mewn meteleg, |
Offer cartref; Gweithgynhyrchu mecanyddol a | |
diwydiannau eraill. |
Gwifrau Gwrthiant | ||
RW30 | Rhif y Gorllewin 1.4864 | Nicel 37%, Cromiwm 18%, Haearn 45% |
RW41 | UNS N07041 | Nicel 50%, Cromiwm 19%, Cobalt 11%, Molybdenwm 10%, Titaniwm 3% |
RW45 | Rhif W 2.0842 | Nicel 45%, Copr 55% |
RW60 | Rhif y Gorllewin 2.4867 | Nicel 60%, Cromiwm 16%, Haearn 24% |
RW60 | UNS RHIF6004 | Nicel 60%, Cromiwm 16%, Haearn 24% |
RW80 | Rhif W 2.4869 | Nicel 80%, Cromiwm 20% |
RW80 | UNS RHIF 6003 | Nicel 80%, Cromiwm 20% |
RW125 | Rhif y Gorllewin 1.4725 | Haearn BAL, Cromiwm 19%, Alwminiwm 3% |
RW145 | Rhif y Gorllewin 1.4767 | Haearn BAL, Cromiwm 20%, Alwminiwm 5% |
RW155 | Haearn BAL, Cromiwm 27%, Alwminiwm 7%, Molybdenwm 2% |
Lluniau Manwl