Frekvence a princip činnosti indukčního kalícího zařízení

Quenching is an indispensable process in metal heat treatment. Nowadays, the quenching technology has made great progress. For example, induction quenching is a very advanced technology. So, how to choose the frequency of induction hardening equipment and what is the working principle of induction hardening equipment?

How to choose the frequency of intermediate frequency induction hardening?

The frequency of use of induction heating surface hardening is different, which can be divided into medium frequency and high frequency. Due to the different frequency of the current, the depth of heat penetration of the induced current is different during heating. When using high frequency, the penetration depth of the induced current is very small, and it is mainly used for surface quenching of small modulus gears and small shaft parts. When using intermediate frequency, the induced current penetrates deeply and is mainly used for surface hardening of gears, camshafts and crankshafts with medium and small modules.

What is the working principle of medium frequency induction hardening equipment?

Středofrekvenčním indukčním kalícím zařízením je umístit obrobek do induktoru vyrobeného z měděných trubek. Určitá frekvence střídavého proudu prochází do induktoru a kolem induktoru se vytvoří střídavé magnetické pole se stejnou frekvencí, takže bude generován obrobek Indukovaný proud o stejné frekvenci, tento proud tvoří smyčku v obrobku , který se nazývá vířivý proud. Tento vířivý proud může přeměnit elektrickou energii na teplo k ohřevu obrobku.