大同Characteristics and principles of grinding precision gear rack quenching process

There are many processes for manufacturing gear racks nowadays. Today, the editor will introduce to you the grinding and precision gear rack quenching process. Do you know the characteristics and principles of precision gear rack quenching process? With these questions in mind, let's take a look at the following introduction.

The grinding precision gear rack quenching process places the gear rack on the sensor, and the cylinder descends to press the gear rack. The sensing electrode, gear rack, and sensor are connected, and the distance between the sensor and gear rack can be adjusted as needed. The induced current generated by the combination of longitudinal and transverse magnetic fields simultaneously heats the tooth surface at a very fast heating speed. The heating time is controlled, and once the temperature is reached, the equipment stops heating and automatically sprays quenching liquid onto the tooth surface, completing one quenching process.

The characteristic of precision gear rack quenching process is the use of longitudinal and transverse composite magnetic field induction heating quenching; High heating efficiency, fast speed, only 6 seconds per piece; The hardness distribution of the hardened layer is uniform; Low power consumption; The edge of the tooth surface is consistent with the middle part; The hardened layer at the tooth root can be precisely controlled; The deformation is small.

Working principle: When a high-frequency power supply is connected, the electrical contacts and the sensor form a circuit, and the sample above the sensor becomes the heated element being induced. In this way, the surface of the workpiece is not only heated by the longitudinal magnetic field, but also by the transverse magnetic field, achieving uniform heating of the rack. Replacing different sensors can heat surfaces of workpieces with different shapes. Compared with traditional high-frequency heating, the surface heating current of the workpiece is more concentrated, the density is higher, and the heating speed is faster. Using this method, the power density for heating the surface of the workpiece is several times higher than that of traditional induction heating, allowing for efficient and high-quality heat treatment of the rack surface.