Heat treatment can include quenching, tempering, annealing, normalizing, etc., which is applied to the manufacturing process according to the requirements of different working conditions. Here we will talk about what equipment can be used for the quenching and tempering process. Compared with traditional methods, induction heating technology has many advantages for quenching and tempering heat treatment processes.

Induction heating offers many benefits to the manufacturing process as it is a fast, energy-efficient, and flameless method of heating conductive materials. Typical systems include an inductive power supply, a copper winding inductor, and a heat sink or heat sink. Current flows through the coil to create an alternating electromagnetic magnetic field. You can browse this site if you want to buy high-technology heaters.

When conductive parts are inserted into the coils, an electric current flows through them. The electric current combines with the resistive characteristics of the conductive parts to produce heat. 

So what is the use of induction heating for hardening and tempering steel?

1. Flexibility

The induction heating system requires no preheat time and display time for the machine, then you can start or stop the machine according to your production requirements.

In most cases, different sizes and grades of materials need to be forged at different tempering temperatures. But with conventional engines, it is difficult to achieve temperature control. If the rod or tube is heated to a high temperature for a long time, the steel will decarburize. In contrast, the induction heating system achieves different temperature settings which are controlled by the power output. This is very important to meet the need for rods or tubes of different quality.

2. Uniformity in hardness and structure

The steel structure changes as a result of the heat treatment process: ferrite-austenite-martensite, carbide. But only steel is subjected to homogeneous heating and cooling, after which its structure can change homogeneously. If it cannot be completely changed, the hardness, toughness, and tensile strength will be compromised, preventing the material from meeting the actual application requirements. In the induction heating system, the entire heating temperature is monitored and controlled to make the structure change well and maintain a stable state.

3. Very low maintenance

Compared with traditional furnaces, only induction heating coils require annual maintenance for induction heating furnaces. Other parts just need to be checked periodically.