The principle of surface heat treatment and quenching.

Surface heat treatment changes the mechanical properties of the surface layer by heating and cooling the surface of the steel. Surface quenching is its main content. So what is this process like? How should we do it? Let's take a look first. Let's introduce the principle of it.

The workpiece is rapidly heated by different heat sources, and when the surface temperature of the part reaches above the critical point (at this time, the temperature of the workpiece core is below the critical point), it is rapidly cooled, so that the surface of the workpiece produces a hardened structure while the core remains the original organization. In order to achieve the purpose of heating only the surface layer of the workpiece, the heat source used is required to have a high energy density.

According to different heating methods, surface quenching can be divided into induction heating (high frequency, intermediate frequency, power frequency) surface quenching, flame heating surface quenching, electrical contact heating surface quenching, electrolyte heating surface quenching, laser heating surface quenching, electron beam surface quenching Wait. The most common industrial applications are induction heating and flame heating surface quenching.

The above is the introduction of the principle of surface heat treatment and surface quenching. This process is divided into several types. We can choose the required method to operate according to the needs of our own products.