1. Working principle of intermediate frequency quenching equipment
Round steel, steel bars or shaft workpieces pass through the induction coil of the intermediate frequency quenching complete set of equipment. The alternating current generated by the intermediate frequency power supply of the quenching induction heating passes through the induction coil, and an alternating electromagnetic field is generated inside the coil. The alternating magnetic field cuts the round steel. Alternating current will be induced inside the round steel. Due to the skin effect, the current is mainly concentrated on the surface of the round steel, so the surface temperature is the highest, followed by the induction coil followed by water spray cooling or other cooling, because heating and cooling are mainly concentrated On the surface, so the surface modification is obvious, but the internal modification is basically not, so as to achieve the quenching effect of the round steel.
2. The main components of the complete set of intermediate frequency quenching equipment:
The complete set of intermediate frequency quenching equipment mainly consists of: mobile tooling, heating equipment, water spraying device, infrared temperature measuring device, and water circulation system.
1. The function of mobile tooling is mainly for uniform rotation and branch movement.
2. The heating equipment is the medium-frequency heating equipment to solve the heating and quenching item, which meets the quenching heating requirements and the quenching and tempering requirements, and the tempering heating requirements;
3. Water spray device;
4. Infrared temperature measurement: In order to improve the accuracy of quenching and tempering, an infrared thermometer can be selected to detect the temperature in a timely manner (if the operator has rich experience, infrared temperature measurement may not be used).
5. Water cooling system: generally HSBL type closed cooling tower is used as the water cooling system.
Third, the characteristics of the complete set of medium frequency quenching equipment
1. The complete set of intermediate frequency quenching equipment has fast heating, uniform temperature, simple operation, energy-saving and electricity-saving.
2. The complete set of intermediate frequency quenching equipment has no oxide scale after hot forging. It is convenient to use with any forging and rolling equipment and various tooling.
3. The complete set of intermediate frequency quenching equipment consumes about 320-350 degrees of electricity. Each ton burned saves more than 100 kilowatt-hours of electricity. As long as about 500 tons are burned, the equipment investment can be recovered by the electricity saved.
4. The complete set of intermediate frequency quenching equipment is widely used: it can forge various metal bars, U-bolts, hardware tools, nuts, mechanical parts, auto parts, etc.
5. The complete set of intermediate frequency quenching equipment has a 24-hour uninterrupted working capacity, which greatly improves the heating production efficiency of users.
6. The complete set of intermediate frequency quenching equipment greatly reduces metal oxidation, saving materials and improving the quality of forging and heating.