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Inductive heating – a sustainable industrial technology
How does inductive heating work?
When conductive materials such as metals are brought into contact with alternating magnetic fields thermal energy occurs that heats them up precisely. Therefore, workpieces are inserted in an inductor through which an alternating current runs. The resistance created by the alternating voltage generates heat directly in the workpiece.
Since there is a greater current density at the edge of the metal part, the so-called skin effect results. A high alternating frequency results in a low penetration depth, while a low alternating frequency means a greater penetration depth. Low frequencies range from 50-500 Hz, medium frequencies from 500 Hz-50 kHz and high frequencies from 50 kHz-27 MHz.
Induction heating systems
Himmelwerk converters are each designed for specific frequency ranges, so that temperatures can be set with pinpoint accuracy. The inductor is placed on a connected outer circuit, via which the current is fed to the component. Since our inductor coils are individually designed and often still manufactured by hand, they fit the shape of the workpiece exactly. This means that no energy is lost and the heating takes place exactly where it is needed.
Himmelwerk induction systems can be easily and automatically integrated into existing production processes. They can be used in all applications where heating of workpieces is required.
Why is inductive heating sustainable?
Induction heating can be used for all industrial applications where conductive metals need to be heatet. Since induction heating generates the heat directly in the workpiece and no longer around it (e.g. through a furnace), significantly less energy is needed to heat the component. The speed of inductive heating, which often takes only seconds, also plays a role. The heating process is short and energy is saved.
Furthermore, the improvement of working conditions through more pleasant temperatures and easy handling contribute to social sustainability in the company.