From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: tungsten carbide magnetic?
Date: Fri, 08 Apr 2005 08:37:13 -0600
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Original poster: DRIEBEN@xxxxxxxxxxxxxxx
George,
I got them off of ebay from the seller "emovendo",
but they weren't cheap. Like $150 each, I believe.
Also, if they ever come in contact with one another
with any part of your body in between, like your
fingers, for instance, you WILL be in a pickle and
you WILL chip the magnets at their contact points!
Ask me how I know this 8^0 I smashed my finger tips
pretty good just slipping my fingers out from between
them! They were pretty darn sore for the next few days
and I consider myself fortunate that I wasn't injured
any worse than that! NFeB mags of this magnitude are
indeed dangerous.
David Rieben
----- Original Message -----
From: Tesla list <tesla@xxxxxxxxxx>
Date: Thursday, April 7, 2005 6:27 pm
Subject: Re: tungsten carbide magnetic?
> Original poster: "GEORGE STEIN" <afa2fg@xxxxxxx>
>
> Hey David,
> Where did you find those big honking magnets??? I wouldn't mind
> having a
> few of them to experiment with.
>
> Thanx
> George Stein
> Bedford, Va.
>
> >From: "Tesla list" <tesla@xxxxxxxxxx>
> >To: tesla@xxxxxxxxxx
> >Subject: Re: tungsten carbide magnetic?
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> >Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>
> >
> >Scot,
> >
> >Yep, as a matter of fact is was (2) 5 lb., hockey puck shaped
> >and sized N48 neodymium-iron-boron magnets that were stuck
> >together as one 10 lb. magnet that I was sticking them to ;^)
> >Don't ask about why they were stuck together :^O Anyway,
> >since they are stuck together now, I decided to use them as
> >a single magnet since they cannot be seperated, barring a
> >good charge of dynamite! The drilling blanks would stick to
> >the magnet(s) but not anything like an equivalent sized piece of
> >steel. And the drilling blanke do NOT transfer the magnetism
> >from one end to the other like ferromagnetic metal does,
> >even with the monster NdFeB magnet. In other words, you
> >can't make a "chain" by sticking another drilling blank to the
> >one that's stuck to the magnet. This material transfers virtually
> >no magnetism.
> >
> >David
> >
> >----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
> >To: <tesla@xxxxxxxxxx>
> >Sent: Wednesday, April 06, 2005 10:45 PM
> >Subject: Re: tungsten carbide magnetic?
> >
> >
> >>Original poster: BunnyKiller <bunikllr@xxxxxxx>
> >>
> >>Hey David...
> >>
> >>first off what kind of magnet did you check this out with? I
> just tried
> >>testing pure tungsten welding ( TIG ) rod on my extremely
> massive
> >>Neodynium magnet and found it to be paramagnetic... but then
> again the
> >>magnet will make aluminum paramagnetic ( this magnet is so
> strong it
> >>creates a "magnetic black hole" :) it will suck the keyring
> from
> >>your pocket at 2 feet , will mess up a TV at 5' , stop a DC
> motor at
> >>6" (( if it doesnt suck it up first)) kill a cheap watch at 8"
> and
> >>gawd forbid ... Never let the matching other magnet even get
> close to
> >>it within 12" ( nearly impossible to get them apart)....
> uhoh Im
> >>rambling...
> >>use the drilling blanks they are cheaper than pure tungsten
> at any
> >>diameter above 1/8"... drilling blanks dont have thorium ( as
> where the
> >>welding variety does and thorIUM is radioactive.... yes
> breathe deep
> >>when you run that gap ;) ) glowing in the dark is fun... :)
> >>
> >>but do you need that extra diameter? I am using 1/8" dia pure
> welding
> >>tungsten no thorium ( and you know what power Im dealing with ;) ...
> >>and have very little wear and erosion problems.. plus the
> minimal
> >>diameter makes it easier on disc design and dwell time...
> >>
> >>and to be honest... Id worry more about vaporized cobalt than
> the
> >>thorium.... off topic Id really be worried about beryllium
> most of
> >>all check out the tables its some weird stuff...
> >>
> >>Scot D
> >
> >
> >
>
>
>
>
>