What is Induction Heating?
Induction heating involves heating an electrically conductive material, such as copper or steel, by using controlled radio frequency (RF) energy to create an electrical current within the object. Unlike other heating methods that rely on an external heat source to heat material, induction heating circulates electrical currents to generate heat from within the object itself. Products that are induction heated use thermal conduction to quickly and evenly transfer the heat from the surface to the object to its core.
The process is used to:
- Temper and harden materials
- Soften materials so they can be shaped and molded
- Bond materials together
- Anneal materials to toughen them and remove internal stresses
The induction heating process ultimately strengthens a material to its optimum physical condition to best meet its intended use.
The Advantages of Induction Heating
There are cost saving, material and environmental advantages in the induction heating process as opposed to more traditional heating methods, such as electric or gas furnaces, and liquid salt baths that use convection and radiation.
Quick and Efficient Process
With induction heating, heat is generated quickly and efficiently, using only the energy needed for the treated object to reach its optimum temperature during the process.
Easily Duplicated Results
The results of induction heating are easily duplicated to achieve consistent results each time, independent of material size or length of a production run.
No contact by the heating source is required, which is a distinct advantage where product contamination is a concern.
No Harmful Byproducts
Induction heating doesn’t generate any environmental waste products, and is a clean process as opposed to more traditional heating methods that generate smoke and toxic emissions.