| Grey Iron Kuenzanisa | Microstructure (Volume Fractions) (((()) | |||
| China (GB/T 9439) | ISO 185 | ASTM A48/A48M | EN 1561 | Matrix Structure |
| HT100 (HT10-26) | 100 | No.20 F11401 | SH-GJL-100 | Pearlite: 30-70％, coarse flakes; Ferrite: 30-70％; Binary Phosphorus Eutectic: ＜7％ |
| HT150 (HT15-33) | 150 | No.25A F11701 | SH-GJL-150 | Pearlite: 40-90％, yepakati coarse flakes; Ferrite: 10-60％; Binary Phosphorus Eutectic:＜7％ |
| HT200 (HT20-40) | 200 | No.30A F12101 | EN-GJL-200 | Pearlite: ＞95％, mashizha epakati; Ferrite＜5％; Binary Phosphorus Eutectic＜4％ |
| HT250 (HT25-47) | 250 | No.35A F12401 No.40A F12801 | SH-GJL-250 | Pearlite: ＞98％ yepakati matete flakes; Binary Phosphorus Eutectic:＜2％ |
| HT300 (HT30-54) | 300 | No.45A F13301 | EN-GJL-300 | Pearlite: ＞98％ yepakati matete flakes; Binary Phosphorus Eutectic:＜2％ |
| HT350 (HT35-61) | 350 | No.50A F13501 | EN-GJL-350 | Pearlite: ＞98％ yepakati matete flakes; Binary Phosphorus Eutectic:＜1％ |
Iyo magineti zvimiro zve grey cast iron inosiyana zvakanyanya, kubva pakuderera kwekupinda uye yakakwirira yekumanikidza simba kusvika kune yakakwira permeability uye yakaderera yekumanikidza simba. Shanduko idzi dzinonyanya kuenderana neiyo microstructure yegrey cast iron. Kuwedzera alloying zvinhu kuti uwane inodiwa magineti zvivakwa zvinowanikwa nekushandura chimiro chegrey cast iron.
Ferrite ine yakakwirira magineti permeability uye yakaderera hysteresis kurasikirwa; pearlite inongopesana, ine yakaderera magineti permeability uye yakakura hysteresis kurasikirwa. Pearlite inoumbwa kuita ferrite neannealing kupisa kurapwa, izvo zvinogona kuwedzera magineti permeability nekana. Kuwedzera ferrite zviyo zvinogona kuderedza kurasikirwa kwe hysteresis. Kuvepo kwecementite kunoderedza iyo magineti flux density, permeability uye remanence, uku ichiwedzera permeability uye hysteresis kurasikirwa. Kuvapo kweiyo coarse graphite kunoderedza remanence. Shanduko kubva kuA-type graphite (yakaita flake-shaped graphite iyo inogovaniswa zvakafanana pasina gwara) kuenda kuD-type graphite (yakakwenenzverwa graphite ine isina-directional kugovera pakati pe dendrites) inogona zvakanyanya kuwedzera magineti induction uye simba rekumanikidza. .
Asati asvika kune isiri-magnetic yakakosha tembiricha, tembiricha inokwira zvakanyanya inowedzera magineti permeability yegrey cast iron. Iyo Curie poindi yesimbi yakachena ndiyo α-γ shanduko tembiricha ye770°C. Kana huwandu hwesilicon huri 5%, iyo Curie point ichasvika 730 ° C. Iyo Curie point tembiricha yecementite isina silicon ndeye 205-220 ° C.
Iyo matrix chimiro cheanowanzo shandiswa magiredhi egrey cast iron anonyanya pearlite, uye iwo epamusoro permeability ari pakati pe309-400 μH/m.
Magnetic Properties yeGrey Cast Iron | |||||||
| Code yeGrey Iron | Muumbi weKemikari (%) | ||||||
| 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 |
| Magnetic Properties | A | B | C | ||||
| Pearlite | Ferrite | Pearlite | Ferrite | Pearlite | Ferrite | ||
| Carbide Carbon 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 | |
| Coercive Force / A•m-1 | 557 | 199 | 716 | 279 | 637 | 199 | |
| Kurasika kweHysteresis / J•m-3•Hz-1 (B=1T) | 2696 | -696 | 2729 | 1193 | 2645 | 938 | |
| Magnetic Field Strength / kA•m-1 (B=1T) | 15.9 | -5.9 | 8.7 | 8.0 | 6.2 | 4.4 | |
| Max. Magnetic Permeability / μH•m-1 | 396 | 1960 | 353 | 955 | 400 | 1703 | |
| Magnetic Field Simba kana Max. Magnetic Permeability / A•m-1 | 637 | 199 | 1035 | 318 | 1114 | 239 | |
| Resistivity / μΩ•m | 0.73 | 0.71 | 0.77 | 0.75 | 0.42 | 0.37 | |
Pano mune zvinotevera ma mechanic properties ye grey cast iron:
Mechanical Properties yeGrey Cast Iron | |||||||
| Chinhu zvinoenderana neDIN EN 1561 | Kuyera | Unit | SH-GJL-150 | EN-GJL-200 | SH-GJL-250 | EN-GJL-300 | EN-GJL-350 |
| EN-JL 1020 | EN-JL 1030 | EN-JL 1040 | EN-JL 1050 | EN-JL 1060 | |||
| Tensile Simba | Rm | MPA | 150-250 | 200-300 | 250-350 | 300-400 | 350-450 |
| 0.1% Goho Simba | Rp0,1 | MPA | 98-165 | 130-195 | 165-228 | 195-260 | 228-285 |
| Elongation Simba | A | % | 0,3 – 0,8 | 0,3 – 0,8 | 0,3 – 0,8 | 0,3 – 0,8 | 0,3 – 0,8 |
| Compressive Strength | σdB | MPa | 600 | 720 | 840 | 960 | 1080 |
| 0,1% Compressive Strength | pd0,1 | MPa | 195 | 260 | 325 | 390 | 455 |
| Flexural Strength | σbB | MPa | 250 | 290 | 340 | 390 | 490 |
| Schuifspanning | σaB | MPa | 170 | 230 | 290 | 345 | 400 |
| Shear Stress | TtB | MPa | 170 | 230 | 290 | 345 | 400 |
| Modules ye elasticity | E | GPa | 78 - 103 | 88 – 113 | 103 – 118 | 108 – 137 | 123 - 143 |
| Poisson nhamba | v | - | 0,26 | 0,26 | 0,26 | 0,26 | 0,26 |
| Brinell kuoma | HB | 160 - 190 | 180 - 220 | 190 - 230 | 200 - 240 | 210 - 250 | |
| Ductility | σbW | MPa | 70 | 90 | 120 | 140 | 145 |
| Tension uye kumanikidzwa kuchinja | σzdW | MPa | 40 | 50 | 60 | 75 | 85 |
| Kuputsa Simba | Klc | N/mm3/2 | 320 | 400 | 480 | 560 | 650 |
| Density | g/cm3 | 7,10 | 7,15 | 7,20 | 7,25 | 7,30 | |
Nguva yekutumira: May-12-2021