Iron powder and epoxy?

  • Thread starter R3KR
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  • #1
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Any have good results by mixing iron powder and epoxy, purpose is to create an armature for a generator.
 

Answers and Replies

  • #2
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I think you want high permeability of the magnetic circuit including both armature and stator. Typical permeability (I think) of iron powder and epoxy is ~ 100 or 150, while steel laminations are ~ 4000. In rotating machinery, one of the limitations is the low permeability of the gap (=1) between armature and stator.
Bob S
 
  • #3
7
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Thanks for your answer.

Steel Laminations ?
What is that ?
 
  • #4
4,662
5
Thanks for your answer.

Steel Laminations ?
What is that ?
Most generator and alternator armatures (except permanent magnet rotors on brushless dynamos) have steel laminations ~ 0.4 mm thick in the armature to reduce ac eddy currents in the steel.
Bob S
 

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