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Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
I would use CA (super) glue. I think that for an application like this it would be idea, and extremely strong.
Short of that, the most fluid longest curing epoxy you can find would probably be the best bet, just make sure that is says it s good for bonding metal.
BTW, it would help to scratch up the plating on the magnet and what you are gluing it to before hand, just make sure to give it a wipe with acetone/isoprople alcohol/etc afterward). Just make sure you don't go through the plating on the magnet.
Registered Member #175
Joined: Tue Feb 14 2006, 09:32PM
Location: Sudbury, ON
Posts: 111
Are they the metal/chrome plating or the epoxy coated magnets? I've seen both. Either way, I'd encapsulate in resin with a fibreglass matte to hold them in... just to be safe. But I can be paranoid like that.
Registered Member #567
Joined: Tue Mar 06 2007, 10:55AM
Location: Singapore
Posts: 147
I don't like those chrome plated magnets, the coating will come off after a while, so if that's the sort you have, I'd agree with Coyote- Encapsulate the magnet entirely. Not too thick a coating, however, or the effect will be reduced.
Registered Member #690
Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
If you use a razor blade you can cut a slit in the plating and then just peel it off, and glue to the magnet underneath. I have done this with a medium size Ni-Cu-Ni plated magnet.
The magnet material is pretty rough and would probably bond well to superglue or epoxy. Of course to avoid oxidation you would only peel off the plating on the face you planned to glue.
Just wondering, what is this for that the hugely strong attraction the magnets will already have is not enough?
Registered Member #64
Joined: Thu Feb 09 2006, 06:25AM
Location: Southampton, UK
Posts: 68
iamsmooth...
I've been following your Q's on fieldlines... Do you want to fix the neos to a steel disc for a dual axial flux alternator? If so the best ppl to ask are the guys on fieldlines, they've been doing for years
fwiw... neos are mostly nickel plated, the bonding agent you use to stick the nickel to a steel plate (+ magnetic attraction) is mostly stronger than the nickel plating to neo. The nickel will split/peel in time allowing moisture into the magnet causing corrosion and swelling... CA glue absorbs moisture too.
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what is the best bonding agent for neodymiums?
