What Is Local Heat Treatment?

Heat treatment locally on the workpiece, the specific operation process is induction heating, induction heating is to heat the workpiece by using electromagnetic induction to generate eddy current in the workpiece.

Has below advantages:

1. Heat source in the surface of the workpiece, heating speed is fast, high thermal efficiency.
2. Because the workpiece is not overall heating, the deformation is small.
3. The heating time is short and the amount of surface oxidation and decarburization is less.
4. The surface hardness of the workpiece is high, the notch sensitivity is small, and the impact toughness, fatigue strength and wear resistance are greatly improved. It is beneficial to give full play to the potential of materials, save material consumption and improve the service life of parts.
5. Compact equipment, easy to use, good working conditions.
6. Easy for mechanization and automation.

7. It is not only used in surface quenching but also in through heating and chemical heat treatment, etc.