Magnet Coating/Plating
The sintered neodymium-iron-boron permanent magnet (sintered ndfeb magnets) is a chemically active powder metallurgical material, which is characteristic of being hard and brittle easy oxidization and erosion. Based on it’s features the most effective way is apply surface or coating As on the surface of sintered NdFB magnetic material, empty holes or oxidization phase occurred by matching may exist .The surface treatment should undergo pre-treatment procedure and have appropriate plating .
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Available Coatings: | ||||
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Su rface |
Coating |
Thickness (Microns) |
Color |
Resistance |
|
Passivation |
1 |
Silver Grey |
Temporary Protection | |
|
Nickel |
Ni+Ni |
10-20 |
Bright Silver |
Excellent against Humidity |
|
Ni+Cu+Ni | ||||
|
Zinc |
Zn |
8-20 |
Bright Blue |
Good Against Salt Spray |
|
C-Zn |
Shinny Color |
Excellent Against Salt Spray | ||
|
Tin |
Ni+Cu+Sn |
15-20 |
Silver |
Superior Against Humidity |
|
Gold |
Ni+Cu+Au |
10-20 |
Gold |
Superior Against Humidity |
|
Copper |
Ni+Cu |
10-20 |
Gold |
Temporary Protection |
|
Epoxy |
Epoxy |
15-25 |
Black, Red, Grey |
Excellent Against Humidity & Salt Spray |
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Ni+Cu+Epoxy | ||||
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Zn+Epoxy | ||||
|
Chemical |
Ni |
10-20 |
Silver Grey |
Excellent Against Humidity |
|
Parylene |
Parylene |
5-20 |
Grey |
Excellent Against Humidity, Salt Spray.Superior Against Solvents, Gases, Fungi and Bacteria.FDA Approved. |
