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Monte-Bianco Magnets Co., Ltd. |
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Industrial Block NdFeB Magnets Ni Cu Ni Coating Customized Neodymium Magne
The following is a list and description of common plating options
for custom magnets.Why do magnets need to be plated?
Oxidization (Rust)
NdFeB magnets will oxidize(rust) if left exposed. When a plating
wears down or cracks, the exposed area will oxidize. An oxidized
area will not result in complete degradation of the magnet, only
the oxidized area will lose its strength. However the magnet will
lose some structural integrity and become more susceptible to
breakage.
Durability
Depending on shape, permanent magnet substrate is brittle. A
multilayered metal plating like nickel or zinc improves the magnets
resistance to chipping and wear, particularly around corners.
Harsh Environments
Platings vary in their tolerance of different harsh chemicals and
abrasion. Salt and humidity in regions near the ocean are
commonly overlooked when selecting a plating. Be sure to consider
the magnets environment when selecting a plating.
The most common type of plating for neodymium magnets Nickel (Ni-Cu-Ni) Intended for indoor use. It has proven to be very resilient when subjected to normal wear and tear. However it will corrode outdoors in prolonged exposure to salt water, salty air,or harsh chemicals.
