ʻOkoʻa nui nā waiwai magnetic o ka hao hoʻoheheʻe hina, mai ka haʻahaʻa haʻahaʻa a me ka ikaika coercive kiʻekiʻe i ka permeability kiʻekiʻe a me ka ikaika coercive haʻahaʻa. Aia kēia mau hoʻololi i ka microstructure o ka hao hina hina. ʻO ka hoʻohui ʻana i nā mea hoʻohui i mea e loaʻa ai nā waiwai magnetic pono e hoʻokō ʻia ma ka hoʻololi ʻana i ke ʻano o ka hinahao hao.
| Na Pono Magnetic o ka hao hina hina | |||||||
| Code of Grey Iron | Ka Hui Kemika (%) | ||||||
| C | Si | Mn | S | P | Ni | Cr | |
| A | 3.12 | 2.22 | 0.67 | 0.067 | 0.13 | <0.03 | 0.04 |
| B | 3.30 | 2.04 | 0.52 | 0.065 | 1.03 | 0.34 | 0.25 |
| C | 3.34 | 0.83 - 0.91 | 0.20 - 0.33 | 0.021 - 0.038 | 0.025 - 0.048 | 0.04 | <0.02 |
| Na Mea Magnetic | A | B | C | ||||
| ʻO ka pele | Ferrite | ʻO ka pele | Ferrite | ʻO ka pele | Ferrite | ||
| Kāpena Carbide w(%) | 0.70 | 0.06 | 0.77 | 0.11 | 0.88 | / | |
| Remanence / T | 0.413 | 0.435 | 0.492 | 0.439 | 0.5215 | 0.6185 | |
| Puali Koi / A•m-1 | 557 | 199 | 716 | 279 | 637 | 199 | |
| Nalo Hīkini / J•m-3•Hz-1 (B=1T) | 2696 | -696 | 2729 | 1193 | 2645 | 938 | |
| Ka ikaika o ke kahua mākēneki / kA•m-1 (B=1T) | 15.9 | -5.9 | 8.7 | 8.0 | 6.2 | 4.4 | |
| Max. Māmā Mākēneki / μH•m-1 | 396 | 1960 | 353 | 955 | 400 | 1703 | |
| ʻO ka ikaika o ke kahua mākēneki ke loaʻa ʻo Max. Mākēneki Permeability / A•m-1 | 637 | 199 | 1035 | 318 | 1114 | 239 | |
| Kū'ē / μΩ•m | 0.73 | 0.71 | 0.77 | 0.75 | 0.42 | 0.37 | |
Loaʻa i ka Ferrite ke kiʻekiʻe magnetic permeability a me ka nalowale hysteresis haʻahaʻa; ʻO ka pearlite ka mea kū'ē, he haʻahaʻa haʻahaʻa magnetic a me ka poho hysteresis nui. Hoʻokumu ʻia ʻo Pearlite i ferrite e ka annealing heat treatment, hiki ke hoʻonui i ka permeability magnetic i ʻehā mau manawa. Hiki i ka hoʻonui ʻana i nā hua ferrite ke hōʻemi i ka nalowale o ka hysteresis. ʻO ka hele ʻana o ka cementite e hōʻemi i ka nui o ka flux magnetic, permeability a me remanence, ʻoiai e hoʻonui ana i ka permeability a me ka hysteresis loss. ʻO ka loaʻa ʻana o ka graphite coarse e hōʻemi i ka remanence. ʻO ka hoʻololi ʻana mai ka graphite A-type (kahi graphite ʻano flake i puʻunaue like ʻole ʻia me ka ʻole o ke kuhikuhi) i kahi graphite D-type (kahi graphite wili liʻiliʻi me ka hāʻawi kuhikuhi ʻole ma waena o nā dendrites) hiki ke hoʻonui nui i ka induction magnetic a me ka ikaika koi. .
Ma mua o ka hōʻea ʻana i ka wela koʻikoʻi non-magnetic, hoʻonui nui ka piʻi ʻana o ka mahana i ka permeability magnetic o ka hao hina hina. ʻO ka lae Curie o ka hao maʻemaʻe ka mahana hoʻololi α-γ o 770°C. Inā he 5% ka pākēneka nui o ke silikoni, e piʻi ka lae Curie i 730°C. He 205-220°C ka mahana o ke kiko Curie o ka cementite me ka silika.
ʻO ke ʻano matrix o nā māka i hoʻohana maʻamau ʻia o ka hao hina hina ka nui o ka pearlite, a ʻo ko lākou permeability kiʻekiʻe ma waena o 309-400 μH/m.
Ka manawa hoʻouna: Apr-17-2021