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03-16-2009, 11:48 PM
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#1
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Lifer
Join Date: Nov 2006
Location: Under a bridge
Posts: 13,263
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How do you permanently magnetize something?
With available household tools, or not too difficult to acquire? From googling around, I found a few ways, but none are too practical and most are non-permanent.
Come on ATOT scientists, do me proud.
__________________
Super Sonic Snail - (Beta) ¯\(º_O)/¯
The problem with libruls is that they think with their hearts; unfortunately, the heart is not a thinking organ. -- Sssnail 
49ers fan since beginning of 2011.
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03-16-2009, 11:50 PM
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#2
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Lifer
Join Date: Apr 2004
Location: Baltimore, MD
Posts: 22,987
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How do you permanently magnetize something?
Get a magnet. Get your ferrous object. Slide the magnet along the ferrous object, always going in the same direction, always with the same part of the magnet and the object.
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03-16-2009, 11:52 PM
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#3
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Lifer
Join Date: Feb 2001
Location: San Francisco Bay Area, CA
Posts: 17,795
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How do you permanently magnetize something?
That's not permanently magnetizing if it's like paper clips. You probably need something extremely strong to align the domains at a low temp.
What you need is heat, lots of it. When you heat something up you can get the domains to align a certain way. Cool it down and you get a magnetized material that stays that way.
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03-16-2009, 11:55 PM
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#4
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Banned
Join Date: Mar 2008
Location: Look behind you, friend.
Posts: 5,616
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How do you permanently magnetize something?
Quote:
Originally posted by: DLeRium
That's not permanently magnetizing.
What you need is heat, lots of it. When you heat something up you can get the domains to align a certain way. Cool it down and you get a magnetized material that stays that way.
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Lots and lots of heat. More heat than you have ever felt in your entire life will be needed. Remember this.
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03-17-2009, 12:06 AM
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#5
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Lifer
Join Date: Nov 2006
Location: Under a bridge
Posts: 13,263
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How do you permanently magnetize something?
Quote:
Originally posted by: theflyingpig
Quote:
Originally posted by: DLeRium
That's not permanently magnetizing.
What you need is heat, lots of it. When you heat something up you can get the domains to align a certain way. Cool it down and you get a magnetized material that stays that way.
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Lots and lots of heat. More heat than you have ever felt in your entire life will be needed. Remember this.
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So my BBQ grill won't do right? I have a blow torch. 
I didn't think the directions for creating a magnet would be "Heat oven to really freaking high, bake for 2 hours"...
__________________
Super Sonic Snail - (Beta) ¯\(º_O)/¯
The problem with libruls is that they think with their hearts; unfortunately, the heart is not a thinking organ. -- Sssnail
49ers fan since beginning of 2011.
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03-17-2009, 12:09 AM
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#6
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Lifer
Join Date: Jul 2001
Posts: 16,029
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How do you permanently magnetize something?
..I'm looking for a non ferrous metals magnet.
__________________
"Under my plan, energy prices would naturally skyrocket" - Barrack Hussein Obama.
gas was $1.84 a gallon prior to obama inauguration. The price of ALL goods and services (food) are tied to the price of transportation energy.
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03-17-2009, 12:10 AM
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#7
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Lifer
Join Date: Feb 2001
Location: San Francisco Bay Area, CA
Posts: 17,795
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How do you permanently magnetize something?
Quote:
Originally posted by: SSSnail
Quote:
Originally posted by: theflyingpig
Quote:
Originally posted by: DLeRium
That's not permanently magnetizing.
What you need is heat, lots of it. When you heat something up you can get the domains to align a certain way. Cool it down and you get a magnetized material that stays that way.
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Lots and lots of heat. More heat than you have ever felt in your entire life will be needed. Remember this.
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So my BBQ grill won't do right? I have a blow torch.
I didn't think the directions for creating a magnet would be "Heat oven to really freaking high, bake for 2 hours"...
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Well no, I don't know how well you can align the domains in heat. When you apply a magnetic field to a ferromagnetic material above the Curie temperature you will be experiencing a paramagnetic/ferromagnetic effect. But iono. You have a better chance at realigning domains at a higher temperature though.
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03-17-2009, 12:35 AM
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#8
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Diamond Member
Join Date: Feb 2006
Posts: 5,201
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How do you permanently magnetize something?
You have to liquify the metal and fast cool it in a strong magnetic field?
__________________
After thirty years of union busting, deregulation, tax breaks for the rich and etc. nearly duplicating the economic conditions preceeding the Great Depression, you wonder why we had another one? 90% tax on the rich, that made this country great! Then Kennedy dropped it to 70% and it's been down hill ever since. Conservative's worst nightmare come true; a second term Obama Presidency. Rush Limbaugh the American Osama Bin Laden.
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03-17-2009, 01:08 AM
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#9
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Diamond Member
Join Date: Feb 2005
Location: Seattle, WA
Posts: 8,124
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How do you permanently magnetize something?
1.) Aquire strong magnet, desired object, & super glue (or epoxy)
2.) Glue magnet to object.
3.) Profit!
__________________
"A faith that cannot survive collision with the truth is not worth many regrets." ~ Arthur C. Clarke.
You got some dust on your monitor right there ~~> ·
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03-17-2009, 01:37 AM
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#10
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Lifer
Join Date: Jul 2001
Location: Toronto, ON
Posts: 26,808
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How do you permanently magnetize something?
Quote:
Originally posted by: DLeRium
Quote:
Originally posted by: SSSnail
Quote:
Originally posted by: theflyingpig
Quote:
Originally posted by: DLeRium
That's not permanently magnetizing.
What you need is heat, lots of it. When you heat something up you can get the domains to align a certain way. Cool it down and you get a magnetized material that stays that way.
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Lots and lots of heat. More heat than you have ever felt in your entire life will be needed. Remember this.
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So my BBQ grill won't do right? I have a blow torch.
I didn't think the directions for creating a magnet would be "Heat oven to really freaking high, bake for 2 hours"...
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Well no, I don't know how well you can align the domains in heat. When you apply a magnetic field to a ferromagnetic material above the Curie temperature you will be experiencing a paramagnetic/ferromagnetic effect. But iono. You have a better chance at realigning domains at a higher temperature though.
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AFAIK heat is both your friend and enemy when trying to magnetize something. Heat will randomize the domains, but also make them easier to change direction.
I guess what you want is a really strong magnet, a lot of heat, and heat your metal up good in the magnetic field, then cool it slowly while keeping the field on.
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03-17-2009, 01:41 AM
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#11
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Diamond Member
Join Date: Dec 2004
Posts: 9,499
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How do you permanently magnetize something?
Lol cerpin.....
If you wrap a wire all along the thing you want to magenetise, heat it up (maybe in on-its-way-to-boiling-temp water?), and touch the wires to a battery shortly, you'll get it magnetized. I think if you periodically touch the wire to the battery (take it off after touching it a half second) until the object is cooled, that should ensure the magnetic domains that you create stay there. IIRC, you lose them when you heat it up or drop the magnet, and keep them during cooling; but I'd continue tapping the wires while it cools just to make sure.
__________________
HOW TO nested quote
Install this into Firefox then click this, then click "quote" as usual, then click "Nested Quote" to the right of the title bar.
4.0Ghz&2.6Ghz-CPU-NB Ph2-965BE || GA790X-UD4P 8GB DDR800 || Gigabyte GTX670 || Soyo 24" PMVA Heatware
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03-17-2009, 11:04 AM
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#12
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Banned
Join Date: Feb 2001
Location: Corner of EPIC and ÅWESOME ST.
Posts: 69,994
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How do you permanently magnetize something?
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03-17-2009, 11:07 AM
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#13
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Lifer
Join Date: May 2003
Location: Atlanta, GA area
Posts: 18,522
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How do you permanently magnetize something?
__________________
Quote:
The pig is an amazing animal. It can take an apple, which essentially is garbage, and turn it into bacon.
-Jim Gaffigan
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PSN: l0k1ju
Come play some MW3! Just note ATOT in invite so I don't ignore.
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03-17-2009, 11:20 AM
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#14
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Banned
Join Date: Jan 2006
Posts: 3,712
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How do you permanently magnetize something?
i used to work at Litton Electron Devices, who makes their own magnets, and
even ended buying one of their old magnetizing machines, just to take it apart.
basically you need a material that can be magnetized and a device that can
create a humongous magnetic field.
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03-17-2009, 11:44 AM
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#15
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Lifer
Join Date: May 2006
Posts: 10,342
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How do you permanently magnetize something?
you cant permanently magnetize anything, because you can demagnetize anything.
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03-17-2009, 02:20 PM
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#16
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Diamond Member
Join Date: Aug 2002
Posts: 6,870
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How do you permanently magnetize something?
I've seen devices in highschool science labs for this.
basically it's just a little box you can put something in, and hidden in the device there is a coil of wire around the box making the magnetic field.
The idea is to heat something up to loosen the domains, and drop it in the box and wait until it cools.
Excessive heat/shock/vibrations will cause your new magnet to loose so of its domain alignment.
__________________
"Arguing with anonymous strangers on the Internet is a sucker's game because they almost always turn out to be -- or to be indistinguishable from -- self-righteous sixteen-year-olds possessing infinite amounts of free time."
-- Neal Stephenson
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03-17-2009, 02:23 PM
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#17
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No Lifer
Join Date: Oct 2000
Location: ::1
Posts: 55,134
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How do you permanently magnetize something?
Quote:
Originally posted by: WHAMPOM
You have to liquify the metal and fast cool it in a strong magnetic field?
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This.
__________________
Stop pleasing others and start pleasing yourself.
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03-17-2009, 02:26 PM
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#18
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Lifer
Join Date: Feb 2006
Location: Where I hang my hat.
Posts: 42,060
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How do you permanently magnetize something?
Quote:
Originally posted by: randay
you cant permanently magnetize anything, because you can demagnetize anything.
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So then, the OBVIOUS answer is to stick in the demagnetizer backwards? 
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03-17-2009, 02:31 PM
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#19
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Diamond Member
Join Date: Aug 2006
Location: Ft. Lauderdale, FL
Posts: 6,325
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How do you permanently magnetize something?
__________________
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