What is the quenching device of the valve end composed of IGBT medium frequency induction heating power supply?

The tops of the intake and exhaust valves of the engine are in contact with the valve rocker arms. During the working process, they are prone to wear and tear, so they require hardening, generally >40HRC. The materials of the intake valve and the exhaust valve are different, and the heating temperature and cooling rate are also different. For valve quenching, the most commonly used equipment now is IGBT medium frequency induction heating power supply. Today, the editor will tell you about the valve end quenching device composed of IGBT medium frequency induction heating power supply.

1) Simple valve quenching device. The IGBT medium frequency induction heating power supply supplies power to a three-turn spiral inductor. The diameter of the middle turn is slightly smaller than the turns at both ends. A valve is placed at each end of the center line of the inductor. The valve stem end is located at the center of the inductor. Since The rod diameter is only about 8mm. Therefore, after the inductor is powered on, the two rod ends are heated to the quenching temperature at the same time. The two V-shaped blocks can determine both the center and the axial position. Use a 50kw IGBT medium frequency induction heating power supply to heat the two valves for 3 seconds. After the valves reach the specified temperature, they are put into the quenching tank below. The quenching cooling medium generally uses oil. Due to the large volume of valve production, the automatic valve quenching device has become a very necessary quenching device.

2) Automatic valve end quenching device. Using IGBT medium frequency induction heating power supply, 8kHz, 50kw, the rotary table is controlled by the main drive motor, the radial positioning is also controlled by the motor, and the axial positioning is controlled by the electromagnet. The heating time can be adjusted within 0.1-9.95s according to process needs, and the working rhythm is a heating time of 0.7s. The machine tool is controlled by a computer and has functions such as parts entry, heating, exit, cooling, and delivery. Process parameters can be set, and it also has functions such as display, recording, and printing.

After reading the above description, you already have a general understanding of the valve end quenching device. Nowadays, many manufacturers are using this device to quench and heat treat the valve and its end. After quenching, the hardness and wear resistance of the valve are greatly improved, which meets the working requirements of the valve.