Cooling conditions for quenching steel using medium frequency induction quenching equipment

The applications of steel are quite extensive. In order to maximize the performance of steel, we often perform heat treatments such as quenching on steel to improve its wear resistance and hardness. Quenching cooling is an important part of quenching heat treatment, and its cooling conditions will have an important impact on the microstructure and properties of quenched steel. Zhengzhou Gou's has been engaged in the production, manufacturing and sales of induction heating equipment for more than ten years and has accumulated rich experience. Today, let’s briefly talk about the cooling conditions of steel when it is quenched with medium frequency induction quenching equipment.

Medium frequency induction quenching equipment has many advantages for the quenching heat treatment of steel, and has brought different effects to the organizational structure of the steel. The traditional quenching cooling process is no longer fully applicable, and a new quenching cooling process is gradually emerging. The new quenching cooling process should be suitable for the following conditions.

(1) Quenching cooling should have rapid cooling conditions. Since the critical quenching cooling rate of carbon steel and low alloy steel is increased when steel is rapidly heated with medium frequency induction heating equipment, in order to obtain a satisfactory quenching structure, it must have the ability to have a higher critical quenching cooling rate than the traditional critical quenching cooling rate. Only with this condition can we avoid the formation of beads in the 650-400°C area where austenite decomposition is most dangerous and reduce the quenching effect.

(2) The quenching and cooling method must adapt to the continuous heating and cooling process. During rapid heat treatment, the steel is continuously heated and cooled one by one. The traditional immersion quenching and cooling method cannot be used, and a new quenching and cooling method should be selected.

(3) The quenching cooling method should have good quenching effect. The new quenching cooling method should have good quenching effect, including obtaining fine lath-shaped quenched martensite, uniform stress distribution in the steel after quenching, and suitable for continuous heat treatment production conditions.

The medium frequency induction quenching equipment produced by Zhengzhou Gou's has been unanimously recognized by the majority of users due to its advantages of complete functions, simple operation, and wide application. If you want to know more about medium frequency induction heating equipment, please call us.