How to choose medium frequency induction heating equipment

Medium frequency induction heating equipment is often used in the forging, casting, and heat treatment industries, especially in automotive manufacturing, construction machinery, machine tool manufacturing, heavy machinery, bearing industry, and railway transportation. It provides convenience for mechanical thermal processing production. However, there are many types of medium frequency induction heating equipment; how should we choose?

1) Shape and size of the workpiece to be heated: For large workpieces, bars, and solid materials, a relatively high-power, low-frequency induction heating device should be selected;

2) For small workpieces, pipes, plates, gears, etc., a relatively low-power, high-frequency induction heating device should be selected.

3) Required heating depth and area: For deep heating and large areas with overall heating, a high-power, low-frequency induction heating device should be selected; for shallow heating and small areas with localized heating, a relatively low-power, high-frequency induction heating device should be selected. The required heating speed: If a fast heating speed is needed, a relatively higher power and frequency induction heating device should be selected.

4) Continuous working time of the equipment: For long continuous working times, a relatively higher power induction heating device should be selected.

5) Distance between the induction component and the equipment connection: If the connection is long and may require water-cooled cables, a relatively higher power induction heating device should be selected.

6) Process requirements: Generally speaking, for processes like quenching and welding, a relatively lower power and higher frequency can be chosen; for processes like annealing and tempering, a relatively higher power and lower frequency can be chosen; for processes requiring good heat penetration effects like red forging, hot stamping, and melting, the power should be chosen to be larger and the frequency lower.

7) Material of the workpiece: For metals with high melting points, a relatively higher power should be chosen; for those with low melting points, a relatively lower power should be chosen; for materials with low resistivity, a higher power should be chosen; for those with high resistivity, a lower power should be chosen.