[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: tungsten carbide magnetic?

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>


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.


----- 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