Help with Low Carbon Iron

[rukiddingme]

@ CompuTutor

I want to make an electromagnet for a pulse motor that has high permeability and high coercive Force.

More specifically, I want to make an electromagnet with a core that saturates quickly and strongly; and also the same core retain the applied magnetic field as long as possible.

[IotaYodi]

More specifically, I want to make an electromagnet with a core that saturates quickly and strongly; and also the same core retain the applied magnetic field as long as possible.

That would be one hell of an alloy. What might work is having 2 rods that differ in composition and both cut in half lengthwise then sandwiched together. Im seeing one as high silcone at 3 to 5%,with high iron content and low carbon and the other a higher carbon content no silicone rod to retain the field for longer. I would think the timing of the 2 would be critical.
Im curious as to why you want the field to last.

[CompuTutor]

Iota, along the lines of a core of one material,
with an outer lining of a second would be better.

The core serves one purpose,
the "Skin" the other quality needed.

That is, as long as the windings are
the length of the rod only,
and don't extended past them.

Then a "washer" type shape that covers
all the coil winding's depth from the core out
and only the outer material of the duo rod,
leaving the alternate center material free
to flux on It's own seperately.

The air core effect of coil/center,
and the classic coupled coil/outer.



In the meantime,
I mean until the industry see's use
for such a custom core design.

You'll have to settle for a rod
hammered into a tube
and "Washers" as bobbin ends.

Thank god for 5-minute epoxy...

[CompuTutor]

(Accidental double post, OU has no delete post option...)

[Paul-R]

Welding rods may well do the job. Also, fencing posts can be
made of iron. I think their rusting performance is better.

(Someone suggested steel. Steel is made by adding carbon
to iron. It won't do).