Isithando somlilo esiphakathi
Isithando somlilo esiphakathi sisebenzisa umbane ophakathi ukufudumeza, ukunyibilika kunye nokugcina ubushushu.Isithando somlilo esiphakathi sisetyenziselwa ukunyibilikisa intsimbi yekhabhoni, intsimbi exutywe nentsimbi, uhlobo lwentsimbi, kodwa ingasetyenziselwa ubhedu, ialuminiyam kunye nokunye ukunyibilikiswa kwentsimbi okungeyontsimbi kunye nokunyuswa kweqondo lobushushu. , ukunyibilika ngokukhawuleza, kulula ukulawula ukushisa kwesithando somlilo, imveliso ephezulu.Isithando somlilo esiphakathi sisetyenziswa ngokubanzi kwi-factory casting and heat treatment.Iziko eliphakathi lamaxesha kancinane liye latshintsha ngokuthe ngcembe iziko lamalahle, iziko legesi, iziko leoyile kunye neziko eliqhelekileyo lokumelana, kwaye liye laba yintandokazi entsha kumzi-mveliso wokuphosa kunye nonyango lobushushu. amandla frequency, ithunyelwe kwiziko umzimba coil, eziko (coil) embindini ophakathi frequency frequency electromagnetic intsimi, ukuze isinyithi kumzimba eziko ukuvelisa eddy yangoku, eddy yangoku kwaye emva koko wenze isinyithi ukuvelisa isixa esikhulu sobushushu ukuze ukuba ukunyibilika kwesinyithi.Iziko eliphakathi lamaxesha aphakathi liqulunqwe ngamandla ombane, ikhonkco lokungeniswa kunye ne-crucible eyenziwe ngezinto eziphikisayo kwi-ring induction.Ngaphakathi kwi-crucible equlethe intlawulo yesithando somlilo, elingana ne-transformer nganye ejikelezayo, i-coil induction, xa i-ac power, ukuya ukuvelisa indawo etshintshanayo yamagnetic kwikhoyili yokungeniswa, umgca wamandla omagnetic kwintlawulo yesithando somlilo, isinyithi siveliswa kwisithando somlilo sokutsalwa kwe-electromotive force, ngenxa yomthwalo ngokwawo wenze i-loop evaliweyo, inqaku le-vice winding lijika kuphela kwaye liyajika. ivaliwe.Ngoko ke, i-inductive current iveliswa ngaxeshanye kwintlawulo.Xa i-current induced idlula kwintlawulo, intlawulo iyafudumeza ukuyenza inyibilike.Inkqubo yokusebenza yesithando somlilo esiphakathi kwakhona luhlobo lwe-cooker induction, ngolu hlobo lulandelayo: okokuqala, ngokusebenzisa umbane we-inverter, ukutshintshwa kwesigaba sesithathu. isilungisi yangoku (SCR) kwisigaba esinye dc, emva koko nge inverter ibhulorho inverter kuhlobo alternating yangoku (ac), 500-1000 hz frequency ipulse ngokwenziwa komsesane ubhedu kumhlaba kazibuthe, yenza isangqa intsimbi ivelisa eddy yangoku. intsimi yamagnetic, i-eddy yangoku ihamba ngentsimbi efudumeleyo, ivelise ubushushu, ukuze kuphunyezwe injongo yokunyibilikisa intsimbi.I-frequency frequency of intermediate frequency electric furnace yi-800-20000Hz.Izimbini, i-medium frequency furnace yokusebenza umgaqo womzoboUmzobo webhloko yesekethe engundoqo Umatshini uboniswe kumzobo. Umlungisi wamkela isiphaluka esinezigaba ezithathu esilawulwa yibhulorho elawulwayo, i-inverter ithatha isigaba esinye sesiphaluka soguqulo lwebhulorho, umthwalo ukwimo ehambelanayo, ikhonkco lokucoca i-DC kukuhluza okukhulu kwe-inductance, ukuze kuhlangatyezwane nayo. iimfuno zokufakelwa kwee-inverters ezihambelanayo.
Ac – DC – AC converter
Isigaba esithathu ibhulorho elawulwa isekethe yolungisa
Umbane ophumayo wesigaba esithathu sombane olawulwayo wokulungisa ibhulorho yile:Ud = 2.34 U2cosa…(1)Ud lixabiso elingumndilili lemveliso yombane weDCU2 — Isigaba sombane seGridA — I-Angle yesigaba sokutshintsha iAngleIform yamaza ombane ephumayo kwii-engile ezahlukeneyo uA. (phantsi komthwalo ongenisayo kunye nomsinga ongapheliyo). I-a>Imeko ye-90 ° ibizwa ngokuba yi-inverting yokusebenza imo yokulungiswa, i-essence yayo kukuba umthwalo ubuyisela amandla kwigridi yamandla.
