| Model: | SmCo magnets |
|---|---|
| Brand: | SmCo magnets |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Magnetic Materials |
| Label: | SmCo magnets , magnets , SmCo |
| Price: |
-
|
| Min. Order: | - |
| Last Online:16 Apr, 2012 |
| SmCo magnets are composed of Samarium, |
| Cobalt, and a few transition metals. SmCo |
| magnets are high performance, low temperature |
| coefficient rare earth permanent magnets, and |
|
could keep their performance under the maximum |
| working temperature 350 degree centigrade. |
|
Manufacturing Process |
|
Samarium, Cobalt, and a few transition |
| metals will be made into the SmCo powder, |
| then fine SmCo powder will be compacted in a |
| die and sintered, fusing the powder into a solid |
| material. There are 2 forms of pressing: die |
| pressing and isostatic pressing. Sintered parts |
| normallyneed some finish machining in order to |
| meet final tolerances. |
|
Machining & Tolerance |
| Generally, SmCo magnets must be machined |
| using diamond-grinding techniques. Sometimes, |
| machining operations may be performed on |
| SmCo materials using carbide tools, but surface |
| finishes thus obtained may be less than optimal. |
| The Standard tolerances for SmCo magnets are |
|
+/- 0.1mm for ground dimensions, but sticter |
| tolerances are possible if specially required. |
|
Surface treatments |
|
The corrosion resistance of SmCo magnets is |
| considered good. Although Surface coating or |
| plating is not generally required for SmCo magnets, |
| all kinds of surface coating are also available, |
| like Nickel, Zn, Ni-Cu-Ni, Gold, Silver, Sn,Chrome, |
| ABS coating, Rubber coating, PTFE(Telfon) coating, |
| stainless steel case, etc. |
|
Magnetizing & Packing |
| SmCo magnets require extremely high magnetizing |
| fields, and can be magnetized in any direction |
| as long as it is aligned properly. In some instances |
| multiple pole magnetization is possible with special |
| fixtures. All SmCo magnets are anisotropic, and |
| can only be magnetized in the orientation direction, |
| so particular consideration must be given to this |
| when designing complex assemblies, if it is intended |
| to magnetize after assembly. |
| SmCo magnets are mechanically weak, and |
| magnetically very strong. They should be packed |
| properly in order to help user to use and handle |
| them. |
