Iipropathi zemagneti zentsimbi engwevu ziyahluka ngokubanzi, ukusuka ekungeneni okuphantsi kunye namandla aphezulu okunyanzeliswa ukuya ekungeneni okuphezulu kunye namandla aphantsi okunyanzeliswa. Olu tshintsho luxhomekeke ikakhulu kwi-microstructure ye-grey cast iron. Ukongeza izinto ezidibeneyo zokufumana iimpawu ezifunekayo zamagnetic zifezekiswa ngokuguqula isakhiwo segreyukutyhilwa kwentsimbi.
| IiPropati zeMagnetic zeGrey Cast Iron | |||||||
| Ikhowudi ye-iron engwevu | Ukwakheka kwemichiza (%) | ||||||
| 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 |
| Iimpawu zeMagnetic | A | B | C | ||||
| IPearlite | Ferrite | IPearlite | Ferrite | IPearlite | 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 | |
| Ukunyanzeliswa kwamandla / A•m-1 | 557 | 199 | 716 | 279 | 637 | 199 | |
| Ilahleko yeHysteresis / J•m-3•Hz-1 (B=1T) | 2696 | -696 | 2729 | 1193 | 2645 | 938 | |
| Amandla ommandla wemagnethi / kA•m-1 (B=1T) | 15.9 | -5.9 | 8.7 | 8.0 | 6.2 | 4.4 | |
| Max. IMagnetic Permeability / μH•m-1 | 396 | 1960 | 353 | 955 | 400 | 1703 | |
| IMagnetic Field Amandla xa Max. IMagnetic Permeability / A•m-1 | 637 | 199 | 1035 | 318 | 1114 | 239 | |
| Ukuxhathisa / μΩ•m | 0.73 | 0.71 | 0.77 | 0.75 | 0.42 | 0.37 | |
I-Ferrite ine-permeability ephezulu yamagnetic kunye nelahleko ephantsi ye-hysteresis; i-pearlite ichasene nje, inomlinganiselo ophantsi wamagnetic kunye nokulahleka okukhulu kwe-hysteresis. IPearlite yenziwe ibe yi-ferrite ngonyango lobushushu olunokonyusa, olunokunyusa ukufikeleleka kwamagnetic amaxesha amane. Ukwandisa iinkozo ze-ferrite kunokunciphisa ilahleko ye-hysteresis. Ubukho be-cementite buya kunciphisa ubuninzi be-magnetic flux, ukunyanzeliswa kunye nokuhlala, ngelixa ukwandisa ukunyanzeliswa kunye nokulahlekelwa kwe-hysteresis. Ubukho begraphite erhabaxa buya kunciphisa ukushiyeka. Utshintsho ukusuka kuhlobo lwegraphite ye-A (igraphite emile okweflake esasazwa ngokufanayo ngaphandle kolwalathiso) ukuya kwigraphite yohlobo lwe-D (igraphite egobileyo egobileyo enosasazo olungeyo-directional phakathi kwedendrites) inokunyusa kakhulu ukufakwa kwamagnetic kunye namandla okunyanzela. .
Phambi kokufikelela kubushushu obubalulekileyo obungeyomagnetic, ukunyuka kweqondo lobushushu kwandisa kakhulu ukufikeleleka kwemagnethi yentsimbi engwevu. Indawo yeCurie yentsimbi ecocekileyo yi-α-γ yokutshintsha kweqondo lobushushu le-770°C. Xa ipesenti yobunzima besilicon yi-5%, indawo yeCurie iya kufikelela kuma-730 ° C. Ubushushu bendawo yeCurie yesamente ngaphandle kwesilicon yi205-220°C.
Ubume be-matrix bemigangatho esetyenziswa ngokuqhelekileyo yentsimbi engwevu i-pearlite, kwaye ukugqithiswa kwabo okuphezulu kuphakathi kwe-309-400 μH / m.
Ixesha lokuposa: Apr-17-2021