When the high-frequency induction heating power supply quenches the workpiece, what are the factors that affect its cooling capacity?

In order to improve the hardness, wear resistance and service life of the workpiece, we usually use high-frequency induction heating power for quenching heat treatment. The so-called quenching is a heat treatment process in which the workpiece is heated to a certain level and then rapidly cooled. Therefore, cooling also has a great impact on the performance of the workpiece, and the cooling capacity directly affects the quality of the workpiece. Today, we will talk about the factors that affect cooling capacity.

There are many factors that affect cooling capacity, among which the cooling medium is more important. The influence of cooling medium on cooling capacity is reflected in the following aspects:

1. The pressure of quenching cooling medium has a significant impact on cooling capacity

2. The additive content has a direct impact on the cooling capacity. The higher the content of the polymer quenching cooling medium, the lower the cooling capacity. Therefore, adjusting the content of the polymer quenching cooling medium can obtain different cooling rates and increase the cooling capacity of the quenching cooling medium. Vary between water and oil.

3. Generally, the cooling capacity of water-soluble quenching cooling media decreases as the temperature increases, while the fluidity of quenching oil increases when the temperature increases, and the cooling capacity does not change much. For polymer quenching cooling media such as PAG quenching cooling media, the additives and water will separate at about 75°C, so the use temperature should be within a certain range.

4. The flow rate of the quenching cooling medium is directly proportional to the cooling capacity. The workpiece for submerged quenching is immersed in a static liquid, but the surface of the workpiece can still be heated. When the liquid flows, the workpiece is quenched immediately. The greater the quenching cooling medium flow rate, the greater the flow rate of the quenching cooling medium. The cooling capacity is also greater.

This article briefly introduces the temperature, pressure flow and additives of the quenching cooling medium on the cooling capacity. I hope it will be helpful to everyone. If you have better insights, you can always contact us.