Prof. Eng. Ioan RUJA, PhD, Prof. Eng. Constantin MARTA, PhD, Eng. Aurel MIDAN, Eng.Marius TUFOI
Rezumat
In cadrul lucrarii se prezinta o instalatie care permite topirea metalelor in camp electromagnetic la frecvente cuprinse intre 200÷300 KHz.. Topirea prin inductie, in levitatie prezinta interes datorita posibilitatii de a obtine metale mai pure si cu proprietati mecanice, tehnologice si electrice care le fac mai performante fata de metalele obtinute prin topire in
instalatiile clasice. Instalatia cuprinde doua parti: convertorul static de frecventa si circuitul oscilant LC care la rezonanta determina topirea si levitatia metalului.
Cuvinte cheie: incalzireinductieconvertor static de frecventarezonantatopire
Abstract
The paper presents an installation allowing the melting of metals in electromagnetic field at frequencies
ranging between 200÷300 KHz.. Melting by induction, in levitation, presents a special interest due to the possibility to obtain purer metals with higher-performance mechanic, technologic and electric properties compared to the metals obtained by melting in classic installations. The installation comprises two parts: the static frequency converter and the LC
oscillating circuit, which, at resonance, triggers the metal melting and levitation.
Keywords: heatinginductionstatic frequency converterresonancemelting
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