What should we pay attention to when measuring the effective heat of the medium frequency induction heating power supply?

The medium frequency induction heating power supply is one of the important equipment in the industry. Since this equipment does not need other media to transfer heat when heating the workpiece, the heating speed is relatively fast. When the equipment is widely used, its effective heat Computing also became a concern. Today, the technical staff of Zhengzhou Gaoshi will briefly introduce what should be paid attention to when the effective heat of the intermediate frequency induction heating power supply?

1. When the workpiece is quenched and cooled, it is often taken out of the quenching medium without being completely cooled. At this time, the temperature of the quenched heating part of the workpiece, the temperature of the unquenched heating part and the temperature of the quenching medium are all different, and a thermometer can be used and other instruments to measure separately. The heated area and the unheated area can be roughly divided by the color of the heated area (dark blue). Although it is relatively rough, because the temperature of the workpiece is already very low after quenching, the temperature difference between the two is already small. Due to the weight of the workpiece, the values of the two parts The change is not obvious. If the process permits, the quenching and cooling time should be extended as much as possible to make the temperature of the workpiece and the cooling medium tend to be uniform, so that the calculation of the effective heat is simple and accurate. The effective heat of the intermediate frequency heating power supply adopts this calculation method.

2. Before induction heating, the workpiece may be preheated in advance. If the preheating is carried out on the induction hardening machine tool, this part of the heat should be included in the effective heat. The above calculation method remains unchanged; if the preheating is carried out on other heat sources , This part should be subtracted when calculating the effective heat. This method is used to measure the effective heat during induction heating and quenching of intermediate frequency quenching machine tools.

3. The heat absorbed by the container storing the quenching medium during quenching, and the heat emitted by the surface of the container in the space during quenching and cooling, should be included in the effective heat. Because they all come from the heat emitted when the quenched workpiece is cooled.

Well, after reading the above-mentioned matters that should be paid attention to when measuring the effective heat, I believe you can already measure the effective heat of the intermediate frequency heating power supply. During the measurement process, if you still don't understand anything, you are welcome to inquire.