Long Lasting Inductors Archives - Page 2 of 2

April 19th, 2010

Assessment of Magnetic Flux Concentrators

Magnetic flux concentrators (also called flux intensifiers, diverters, or controllers) are made from high-permeability, low-power-loss materials. They are routinely used in induction heat treatment applications in a manner similiar to […]

April 12th, 2010

Induction heating misconceptions

Whenever someone is talking about induction heating, reference is often made to the phenomenon of skin effect. In most publications devoted to induction heating distributions of current density and power […]

April 8th, 2010

Coil failure: pt 11c : Frequency Selection

The temperature at which a ferromagnetic body becomes nonmagnetic is called the Curie temperature (Curie point).Depending upon the heat intensity (Cº/s or Fº/s) there can be some shifting of the […]

April 5th, 2010

Coil Failure pt 13: Proximity Effect

When the currents flow in opposite directions, a strong magnetic field forms in the area between the bus bars. This occurs because in this area the magnetic field lines produced […]

March 18th, 2010

Coil failures pt 14: SPLIT-RETURN INDUCTORS

The main considerations when choosing an inductor style are the shape of the part, the desired heat-treat pattern, and the material handling to be used for production (i.e., how the […]

March 15th, 2010

Coil Failures: Coils for Internal Surfaces pt. 12

In contrast to inductors used to heat external surfaces or outside diameters, the effectiveness of an internal coil depends to a much greater extent on the coil-to-workpiece gap. Electrical efficiency […]