Understanding Induction Heating - Superheat

08 Sep.,2025

 

Understanding Induction Heating - Superheat

For specific scope, induction heating can be a better, safer, faster alternative to traditional methods such as electrical resistance and open flame. Renting the Miller ProHeat™ 35 gives you control over schedules and costs, reducing reliance on third-party heat treatment contractors.

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So, how does the induction heating work? Induction heating passes an alternating magnetic field through conductive materials, generating localized electrical currents known as Eddy currents. These currents encounter the metal’s electrical resistance, creating heat through Joule heating. The material’s electrical resistance and magnetic properties influence the amount of heat produced. Additional heat is generated due to hysteresis losses, which result from resistance to changing magnetic fields in the ferrous makeup of the metal. Among other factors, the depth of heating depends on how quickly the magnetic field alternates. Increasing the magnetic field strength by using multiple coil turns or positioning the conductors closer to the material, while also changing the kVa output, can intensify heat application to a desired result.

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