Multi-layer multi-turn inductor for induction heating furnace

The multi-layer multi-turn inductor is shown in the figure. It is a multi-layer multi-turn inductor used for scanning and quenching of track pins. It is composed of three layers of multi-turn coils. The winding directions of the three layers of coils should be consistent, and insulation is required between layers and turns. In order to solve the problem of too long cooling water circuit, the water circuit is three-in and three-out, and the circuit is connected in three layers, and the innermost layer has a wear-resistant and heat-resistant guide sleeve to prevent the workpiece from colliding with the effective ring. The advantage of this kind of inductor is that it can be directly connected to the intermediate frequency power supply without the need to reduce the voltage through a quenching transformer. Tractor Φ22mm x 430mm track pin was once produced with this kind of inductor. The driven gear (induction hardening after carburizing) of the tractor with a power supply of 8kHz and 100kW was also heated by a single-layer multi-turn inductor. The workpiece size is Φ412. . 5mm x68mmo