The traditional heat treatment method is to control the reasonable heating temperature, maintain the temperature at this temperature for a certain period of time (also known as the holding time or heating time), and then cool at a certain speed to obtain a good heat treatment effect (also can pass a temperature - The process curve of time to depict). Today Luoyang Wanle Electrical Equipment Plant introduces you to the impact of medium frequency heating furnace on quenching technology:
Since the induction heating speed is very fast and the temperature measurement is difficult, it is usually controlled by an indirect method, such as controlling the heating growth by heating time or adjusting the electrical parameters to change the heating speed, etc., thereby showing that the induction heating surface is quenched by means of Adjust the electrical parameters of the equipment to control the parameters to ensure the surface quenching quality.
The power supply of the intermediate frequency furnace also has an effect on the depth of the quenching layer. The higher the power, the shorter the heating time, the less heat that directly heats the layer, and the lighter the layer. The power supply required for quenching in an intermediate frequency furnace is related to the quenching area.
The depth of the quenched layer is an important technical requirement that has a large impact on the quality of the product. The depth of the quenching layer mainly depends on the frequency of the heating power supply of the intermediate frequency heating furnace. The higher the frequency, the smaller the penetration depth, and the shallower the direct heating layer and the quenching depth. The frequency of the quenching heating power source is divided into two categories: intermediate frequency and high frequency.
In the operation of the intermediate frequency heating furnace, the induction coil flows through a large intermediate frequency current to heat the workpiece. For a typical workpiece heating time of only a few seconds, the internal temperature of the workpiece is too late to rise, and then the power is turned off, and the water is quickly sprayed to cool the workpiece.
