Passivated NdFeB
Passivated NdFeB
(OP)
Can somenoe tell me something about this process? Does it provide corrosion resistance?
From ht tp://ningb o-unimag.c om/Article -products. asp?id=83& amp;seq=18
From ht tp://www.a libaba.com /product-g s/26663290 9/passivat ed_ndfeb_m agnet.html
From ht
Quote:
Our most advanced technology: we can make two different series of sintered NdFeB magnets--- ordinary book mold alloy and magnets (HAST NdFeB) based on a strip cast alloy which gives a better chemical stability. We has invested in the production technology enabling to use strip cast material. HAST NdFeB magnets have higher anticorrosion and can last for 7 days under 131 degree Celsius, 100% humidity and 3atm with loss of weight less than 5mg/cm2.
From ht
Quote:
We produce ndfeb magnet without coating, many motor customers need passivated ndfeb magnet





RE: Passivated NdFeB
Admittedly, I did the testing 9 years ago and there have been improvements in chemistry & processing since then.
RE: Passivated NdFeB
Once corrosion starts I don't think that it will be any different.
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Plymouth Tube
RE: Passivated NdFeB
In use, we ALWAYS coat the NdFeB magnets with some sort of protective material to encapsulate or shield the magnet from the environment. I would view the article you read as an error in translation.