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Reply #5: What you want is MuMetal [View All]

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Mopar151 Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jul-27-09 09:59 AM
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5. What you want is MuMetal
I worked for a magnetic shielding company (temp) for a few months. MuMetal is ~ 20%iron, 80% nickel, and works like Stainless Steels evil twin. And you need to anneal it in a hydrogen furnace - known as "The Hindenburg" at the shop I was in.
For a radio, you'd want an instrument case, which would be fairly easy- not cheap, tho. A hat would be pretty difficult, mostly because of the (hydroform) tooling - you would need a different (hardened A2) tool steel "head" for each size.
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  -I just thought of a great American product and I'm looking for investors. The Backlash Cometh  Jul-27-09 09:12 AM   #0 
  - Aluminum,  nykym   Jul-27-09 09:27 AM   #1 
  - Oddly, that only happens if you ingest it.  The Backlash Cometh   Jul-27-09 09:29 AM   #2 
  - So I googled 'aluminum hats' and found this gem  lunatica   Jul-27-09 09:36 AM   #3 
  - I can't imagine that Velostat caps are comfortable to wear to bed at night.  The Backlash Cometh   Jul-27-09 09:52 AM   #4 
  - What you want is MuMetal  Mopar151   Jul-27-09 09:59 AM   #5 
  - Wouldn't we have to add a disclaimer to avoid liability for lightening strikes?  The Backlash Cometh   Jul-27-09 11:03 AM   #6 
     - No.  Mopar151   Jul-27-09 12:39 PM   #11 
        - "A very little mass." I kind of surmised that much for myself.  The Backlash Cometh   Jul-27-09 12:48 PM   #12 
  - What you have to think about is design...  Javaman   Jul-27-09 11:07 AM   #7 
  - Tin hat I-pod.  The Backlash Cometh   Jul-27-09 12:05 PM   #9 
     - People will think you are still crazy, but you will look cool. LOL nt  Javaman   Jul-27-09 05:23 PM   #13 
  - Design it to be made out of recycled beer / soda cans and you've got a winner! n/t  FormerDittoHead   Jul-27-09 11:11 AM   #8 
     - Transformer radio!  The Backlash Cometh   Jul-27-09 12:06 PM   #10 

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