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On the basis of producing high quality raw blocks, ZHmag has been researching and developing updated surface protection technology vigorously. We can provide customers with high quality coatings and humidity resistance of coated magnets are quite good to assure magnets safe enough even in rigorous environments.
During the process of coating and plating, ZHmag attaches great importance to environment protection, all coatings meet the requirements of ROHS.
|
Type |
Thickness |
Colour |
Temperature |
PCT |
SST |
Characteristic |
|
Zn |
5-10μm |
Blue Silver |
≤160℃ |
— |
＞48hr |
protection for most products |
|
Ni＋Sn |
10-30μm |
Semibright Silver |
≤160℃ |
＞48hr |
＞96hr |
excellent climate&salt spray resistance |
|
Ni |
10-30μm |
Blue Silver |
≤200℃ |
＞48hr |
＞96hr |
excellent climate&salt spray resistance , suitable for clean-room |
|
Al Spraying |
6-20μm |
Dark Silver |
≤200℃ |
— |
＞288hr |
superior resistance to salt &humid atmosphere suitable for big size or anomalous magnets |
|
IVD Al |
10-30μm |
Silver White |
≤400℃ |
＞48hr |
＞288hr |
superior resistance to salt&humid atmosphere , thickness equality , excellent adhesive attraction |
|
Epoxy |
10-30μm |
Black Gray |
≤120℃ |
＞48hr |
＞96hr |
well climate&salt spray resistance | | | |
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