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Galvanized Steel Cable
By vawtman, Section Mechanical Posted on Sat Jun 23, 2007 at 12:26:04 AM MST
Would zinc work has a insulator for multiple strands in a stator backing?

I know this seems confusing,But you know me. Would each strand in the cable be insulated from each other?Sorta laminatish,More or less to help breakup eddies before the outer steel band.
Ive got a plan for 32in stator maybe.
Just thoughts.

Galvanized Steel Cable | 5 comments (5 topical)

Re: Galvanized Steel Cable (3.00 / 0) (#1)
by vawtman on Fri Jun 22, 2007 at 06:57:43 PM MST

Forgot to mention that this would be about 3/4 in from the outer surface of the mags.Close it would be bad after further thoughts.

I hate these gremlins in my head.

Re: Galvanized Steel Cable (3.00 / 0) (#2)
by stephent on Fri Jun 22, 2007 at 07:09:25 PM MST

Galvanized Steel cable? It would work in a limited way as laminate material, but zinc is conductive. Eddy currants would definitely get across and through the zinc coating.
Running the cable in a big coil around the circumference would expose "maybe" less of it to eddy currants, depending on cable/strand size, because of orientation.
But any present would be free to wander around.

Re: Galvanized Steel Cable (3.00 / 0) (#3)
by Ungrounded Lightning Rod on Fri Jun 22, 2007 at 09:54:08 PM MST

Zinc is quite conductive. With the strands only touching along lines rather than flats the resistance to currents between them would be high enough to reduce them somewhat, but you'd still get nontrivial eddy currents.

However the steel cable is a "hard" magnetic material. It takes significant energy to change its magnetization. So you have "iron losses", as that energy is repeatedly applied and converted to heat.

I wouldn't attempt to use galvanized cable as a magnetic return path.

Re: Galvanized Steel Cable (3.00 / 0) (#4)
by vawtman on Mon Jun 25, 2007 at 06:51:13 PM MST

Thanks for the reply
I had fuzzy thoughts about the properties of zinc in a field.You and stephant cleared that up,many thanks

Ive been finding links to coated baling wire(soft iron),either painted or pvc coated.Also coated rebar wire.Thoughts on that?

Seems more expensive than copper.I dont care about that though.

Ive got the stator core almost done.

Will update soon.

[ Parent ]

Re: Galvanized Steel Cable (3.00 / 0) (#5)
by vawtman on Fri Jul 27, 2007 at 04:24:29 PM MST

What if one threw the cable in a fire.Thus burning off the zinc and annealing the steel then allowing it to rust where the zinc was?

I just torched a section of cable and the zinc seemed to dissapear easily and now there should be space for rust.Once the rust forms and dries it could be sealed in.

What do you think Ungrounded.

Am i nuts with this approach.

[ Parent ]

Galvanized Steel Cable | 5 comments (5 topical)

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