| Core heating of metal makes it considerably easier to shape. Induction heating is particularly well suited for heating half-finished metal products such as billets, slugs, bars, tubes, etc, before rolling, stamping, forging, drawing, extrusion or other shaping operations. |
 |
Depending on the characteristics of the products to be heated, there are several treatment methods available, such as: static heating, continuous heating through a solenoid or tunnel inductor, continuous heating through a plate structure, etc. Medium-frequency heating is usually well suited for most situations encountered in industry.
When products are small in diameter (wires for example), the frequencies used are higher and require the use of transistor generators. Induction heating is increasingly appreciated in industry for the following reasons: high productivity, low power consumption, fast heating, fewer losses due to oxidation, good temperature accuracy, no decarburization, high part quality, and the possibility of heating a specific area of the part.