Inner hole quenching inductor
The inner hole quenching inductor usually USES a multi-turn inductor, whose inlet pipe must be connected to a catheter that passes through the center of the coil. The inlet joint may be designed to be larger than the outlet joint for ease of identification. When the size of the internal hole of the inductor is allowed, the magnetic permeability can be formed by adding a sleeve or filling of the magnetic permeability (mud lake shaped magnetic permeability). Smaller bore, can be used back - line sensor, the workpiece must be rotated.
