Induction furnace appearance quenching equipment introduction

Introduction of induction furnace external quenching equipment Today we will discuss the quenching equipment of the induction heating furnace.

Do you know the effect of the external quenching equipment of induction heating furnace? And its advantages and principles? Today I will give you a careful introduction.

The effect of induction heating external quenching equipment: Some parts are subjected to higher stress than the core under the effect of alternating load and impact load such as change and tortuosity in the workpiece. In the case of conflict, the outer layer is continuously worn, so the requirements for high strength, high hardness, high wear resistance and high fatigue limit are imposed on the outer surface of some parts. As long as the appearance is strengthened, the above requirements are satisfied. Because the surface quenching has the advantages of small deformation and high productivity, it is widely used in production. According to different heating methods, the external quenching mainly includes induction heating, external quenching, flame heating, external quenching, and electrical contact heating and external quenching.

Induction heating furnace external quenching: Induction heating is the use of electromagnetic induction to generate eddy currents in the workpiece to heat the workpiece. Compared with the general quenching furnace, the induction furnace has the following advantages: 1. The heat source is on the surface of the workpiece, the heating speed is fast, and the thermal efficiency is high. 2. The workpiece is not heated as a whole, and the deformation is small. 3. The heating time of the workpiece is short, and the surface is less oxidized and decarburized. 4. The hardness of the workpiece is high, the notch sensitivity is small, and the impact toughness, fatigue strength and wear resistance are greatly improved. The application of induction heat treatment equipment is beneficial to the potential of materials, saving material consumption and improving the service life of parts. 5. Compact equipment, convenient operation and good working conditions. 6. Easy to mechanize and automate. 7. Not only used for external quenching but also for penetration. Heating and chemical heat treatment, etc. The basic principle of induction heating quenching: The workpiece is placed in the inductor. When the alternating current is passed through the inductor, an alternating magnetic field with the same frequency as the current is generated around the inductor, and an induced electromotive force is generated correspondingly in the workpiece. An induced current, that is, an eddy current, is formed on the surface of the workpiece. Under the effect of the resistance of the workpiece, the eddy current is converted into heat energy, so that the external temperature of the workpiece reaches the quenching heating temperature, and the surface quenching can be completed.

Inductive appearance after quenching: 1. Appearance hardness: The workpiece with high and medium frequency induction heating and quenching is often 2 to 3 units (HRC) higher than the general quenching. 2. Abrasion resistance: The wear resistance of the workpiece after induction hardening is higher than that of general quenching. This is mainly due to the fact that the hardened martensite grains are fine, the carbide dispersion is high, and the hardness is relatively high, and the high compressive stress on the surface is summarized. 3. Fatigue strength: High and medium frequency external quenching makes the fatigue strength greatly improved and the notch sensitivity decreases. For the workpiece of the same material, the depth of the hardened layer is within a certain range, and the fatigue strength is added as the depth of the hardened layer is added. However, when the depth of the hardened layer is too deep, the surface layer is compressive stress, so the fatigue strength of the hardened layer is decreased and the workpiece is lowered. Brittle addition.

For more information about the intermediate frequency electric furnace, diathermy furnace and induction furnace of Kunshan Wantai Electric Furnace Co., Ltd., please contact Xiaobian.