What are the typical structures of medium frequency induction heating inductors?

The characteristics of the medium frequency induction heating sensor are that the conductive part of the effective ring is thicker and the structure is relatively heavy. It is usually made of multiple machined parts welded together. Some sensors are also equipped with a workpiece positioning device. In this case, the quenching machine tool does not need to be used. Rotating tip loading work.

1. The medium-frequency induction heating has a semi-annular crankshaft inductor: it consists of an effective ring, a spacer block, a side plate, an injector, an interval positioning block and other parts. Its core is an effective ring, which branches circumferentially and axially. Made up of branches.

2. Medium-frequency induction heating shaft-type semi-annular inductor with longitudinal heating: It is a type of inductor that has been widely used since the late 1960s for one-time heating and quenching of straight shafts, stepped shafts, half shafts, etc.

3. Camshaft quenching sensor: Because it has a special geometric shape, the current frequency used has a decisive effect on the temperature of the tip. There are two types of cam sensors: circular and profile. Most engine cam sensors use circular effective rings.

4. Quenching sensor of the inner surface of the cylinder liner: The inner surface of the cylinder liner is generally quenched by scanning quenching. Since the cylinder liner wall is thin, when the inner surface is heated and quenched, there is an auxiliary injector cooling on the outer surface of the cylinder liner, which can reduce the cost of the cylinder liner. Deformation.

5. Medium frequency induction heating has a short cylindrical heating sensor: it is an inductor that heats short cylindrical workpieces. The effective circle is divided into three layers. The upper layer heats the upper section, the middle layer heats the middle section, and the lower layer heats the low section. The temperature of each section can be adjusted by adjusting the wrapping angle of each section. The effective ring of this structure can also be equipped with magnetic conductors according to the requirements of different workpieces. The bottom effective ring is slightly modified to heat the fillets and flange surfaces of the workpiece.

6. Bell-shaped shell spline part heating sensor: Its effective circle is divided into three sections. The upper section heats the upper end of the workpiece cylinder, and the middle section is heated by two uprights. A magnet should be installed on these uprights; the lower forged heating shaft Magnetic conductors can also be added to the parts.

7. The medium-frequency induction heating has a half-shaft one-time heating sensor: a high-power medium-frequency power supply is used to harden all the half-shaft hardening areas at one time. In addition to improving productivity, this method can also be combined with a special quenching machine tool to combine heating, correction, and cooling on one quenching machine tool.