Iron Powder + Epoxy Armature for Generator

In summary, the conversation discusses the effectiveness of mixing iron powder and epoxy to create an armature for a generator. The speaker mentions that the goal is to have high permeability in the magnetic circuit, but points out that the permeability of iron powder and epoxy is much lower than that of steel laminations commonly used in generators. The speaker also brings up the issue of low permeability in the gap between the armature and stator in rotating machinery. In response to a question about steel laminations, the speaker explains that they are thin layers of steel used in most generator armatures to reduce eddy currents.
  • #1
R3KR
7
0
Any have good results by mixing iron powder and epoxy, purpose is to create an armature for a generator.
 
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  • #2
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
Thanks for your answer.

Steel Laminations ?
What is that ?
 
  • #4
R3KR said:
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
 

FAQ: Iron Powder + Epoxy Armature for Generator

1. What is the purpose of using iron powder and epoxy for a generator armature?

The combination of iron powder and epoxy is used to create a strong and durable armature for a generator. The iron powder adds strength and magnetic properties, while the epoxy acts as a binding agent to hold the iron powder together.

2. How does the iron powder and epoxy armature affect the performance of a generator?

The iron powder and epoxy armature helps improve the efficiency and power output of a generator. The magnetic properties of the iron powder allow for a stronger magnetic field, resulting in a more powerful and efficient generator.

3. Are there any drawbacks to using iron powder and epoxy for a generator armature?

One potential drawback is that the iron powder and epoxy armature may be more expensive to produce compared to other materials. Additionally, the weight of the armature may increase, making it more difficult to transport and install.

4. How is the iron powder and epoxy armature made?

The iron powder and epoxy armature is typically made by mixing iron powder with a liquid epoxy resin and pouring the mixture into a mold. The mold is then heated to cure the epoxy, creating a solid and durable armature.

5. Can the iron powder and epoxy armature be used for all types of generators?

Yes, the iron powder and epoxy armature can be used for both AC and DC generators. It is a commonly used material for small to medium-sized generators, but larger generators may require a different type of armature for optimal performance.

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