Assessment of Magnetic Flux Concentrators
April 19th, 2010
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 that of magnetic cores in power transformers. There are three traditional functions of flux concentrators in induction hardening; (a) providing a selective heating of certain areas of the workpiece; (b) improving the elctrical efficiency of the induction coil; and (c) acting as an electromagnetic shield to prevent the undesireable heating of adjacent regions.
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