How often do you wipe down the inside of your tank?
- Thread starter rkm
- Start date
bang guy
Moderator
Sorry to hijack :joy: but this seems to be a good place to ask...
I use the Tunze .55 magnets to scrape with and they've done great since I bought them 6 years ago. Lately they seem to be loosing their power. I think they are Neodynium (sp??) magnets. Do these types of magnets have a lifespan? Is there any way to "recharge" them?
Bang
I use the Tunze .55 magnets to scrape with and they've done great since I bought them 6 years ago. Lately they seem to be loosing their power. I think they are Neodynium (sp??) magnets. Do these types of magnets have a lifespan? Is there any way to "recharge" them?
Bang
rkm
Member
Not to sure on that Bang. I remember something about rubbing maginets together or something in elem. school.:notsure: I think if I remembe correctly that if you stick the magnet to another one that is stronger that it will regain energy. I am really reaching out there on this. It might be a good question for Gieves. Sorry for my spelling.
rkm
Member
I found this it don't look to good for you Bang!
You cannot achieve much of a "recharge" with ordinary equipment available to
you. However there is a way that will give a weak restorative effect to a
(bar not horseshoe) magnet.
Float the magnet atop a board in a plastic pan of water and allow it to come
to rest "pointing north-south." Carefully remove it and hold it in the exact
same N-S orientation as when floating on the board then repeatedly strike
one end of the magnet sharply with a hammer. Wear safety glasses lest a chip
of metal break off.
The blows from the hammer will jiggle the magnetic domains in the magnet to
realign with the earth's magnetic field. The process will work on any bar
made of iron. If you successfully perform the experiment, you can explain
the "why" of it to your students.
You cannot achieve much of a "recharge" with ordinary equipment available to
you. However there is a way that will give a weak restorative effect to a
(bar not horseshoe) magnet.
Float the magnet atop a board in a plastic pan of water and allow it to come
to rest "pointing north-south." Carefully remove it and hold it in the exact
same N-S orientation as when floating on the board then repeatedly strike
one end of the magnet sharply with a hammer. Wear safety glasses lest a chip
of metal break off.
The blows from the hammer will jiggle the magnetic domains in the magnet to
realign with the earth's magnetic field. The process will work on any bar
made of iron. If you successfully perform the experiment, you can explain
the "why" of it to your students.
jugger
Member
he is right about realigning of the dipoles but more than likey it will make it weeker unless the magents are really bad.....you can however build a power supply to deliver ~5k amps over a coiled inductor with the magnets inside...this should create stronge enough of a magnet field to realign a good percentage of the dipoles
S
sashimi
Guest
Originally posted by Ryan Miller
I found this it don't look to good for you Bang!
You cannot achieve much of a "recharge" with ordinary equipment available to
you. However there is a way that will give a weak restorative effect to a
(bar not horseshoe) magnet.
Float the magnet atop a board in a plastic pan of water and allow it to come
to rest "pointing north-south." Carefully remove it and hold it in the exact
same N-S orientation as when floating on the board then repeatedly strike
one end of the magnet sharply with a hammer. Wear safety glasses lest a chip
of metal break off.
The blows from the hammer will jiggle the magnetic domains in the magnet to
realign with the earth's magnetic field. The process will work on any bar
made of iron. If you successfully perform the experiment, you can explain
the "why" of it to your students.
:happyfish
Hitting a magnet will demagnetize it and possibly shatter the magnet. You need a Magnetizer/DeMagnetizer.