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| Magnetic Technology >> Magnets Coating /Plating |
| HOME >> Magnets Coating /Plating |
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China Ningbo Tongchuang Strong Magnet Material CO.LTD. is a high-tech company specializing in NdFeB magnet and magnetic materials, arc magnet manufacturer, researching, developing and applications. We also are manufacturing and marketing other custom arc magnets permanent magnets, such as Sm-Co, Al-Ni-Co, hard ferrites and rubber magnets. ISO 9000 QC systems is through our all production processes, with the assistance of advanced testing and inspection equipments and techniques. We also take RoHS requirement as the guideline in material selection. Tongchuan magnets have been used widely in small motors, instruments, electronic devices, auto parts, MRIs, Speakers and a great variety of other applications. |
| Available Coatings Of Sintered NdFeB Magnets |
| Surface |
Coating |
Thickness(Microns) of coating |
Color |
Resistance |
Salt spray Test Standard (hours) |
Pressure Coating Test Standard (hours) |
| Passivation |
|
1--2um |
Silver Grey |
Temporary Protection |
Not available |
Not available |
| Nickel |
Ni+Ni |
10--20um |
Bright Silver |
Excellent against Humidity |
24 |
24 |
| Ni+Cu+Ni |
| Zinc |
ZN |
3--8um |
Bright Blue |
Good Against Salt Spray |
24 |
Not available |
| C-Zn |
shiningColor |
Excellent Against Salt Spray |
48 |
Not available |
| CR3+Zinc |
ZN |
3--8um |
Bright Blue |
Good Against Salt Spray |
24 |
Not available |
| C-Zn |
shining Color |
Excellent Against salt Spray |
48 |
Not available |
| Tin |
Ni+Cu+Sn |
10-25um |
Silver |
Superior Against Humidity |
48 |
Not available |
| Gold |
Ni+Cu+Au |
2--10um |
Gold |
Superior Sgainst Humidity |
Not available |
Not available |
| Ag |
Ni+Ag |
2--10um |
Silver |
Superior Against Humidity |
Not available |
Not available |
| Epoxy |
Epoxy |
10-25um |
Black,Grey |
Excellent Against Humidity & Salt Spray |
48 |
Not available |
| Ni+Cu+Epoxy |
Not available |
| Zn+Epoxy |
Not available |
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| Coating Test Standard of Nickel coating |
(1).Salt Spray Test(SST):
Test condition :
Temperature:35C Degree,5% NaCl ,Continous spray for 24 hours.
Test Standard/Criterion:
Coating is good ,doesn't get off,no bubbles,no dots.no rust appear. |
(2)Pressure cooker Test (PCT):
Test condition :
121C and 95% RH and 2 atmosheric pressure, test for 24 hours
Test Standard/Criterion:
Coating does not Get off, there are no air bubbles or dots Appear |
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| Contact us |
Ningbo Tongchuang Strong Magnet Material Co., Ltd
Add: Xinzhuang Gaoqiao Yinzhou District,Ningbo City,China
TEL: 86-574- 88170908, 88089786
Fax: 86-574- 88170906, 88089789
E-mail: sales@ndmagnets.com (General Inquiry)
MSN ID: tcmagnet@hotmail.com (On line Chatting) |
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