What should be paid attention to during shaft induction hardening operation?

1) During continuous heating and quenching, if the shaft workpiece has a large diameter or the equipment power is insufficient, the preheating continuous heating and quenching method can be used, that is, the inductor (or the workpiece) is used to move in the reverse direction to preheat, and then immediately move forward to continue heating Quenching.

2) When the required depth of the hardened layer exceeds the heat penetration depth that the existing equipment can achieve, the method described in the previous article of Aite Trade Network can be used to deepen the depth of the hardened layer.

3) The stepped shaft should first quench the small diameter part, and then quench the large diameter part.

4) The top positioning is generally used when the shaft workpiece is quenched, but the top strength should be appropriate, otherwise, the thinner workpiece is prone to bending deformation. For workpieces that cannot be positioned with the center, positioning sleeves or axial positioning ferrules can be used.