Manufacturing soft magnetic components using a ferrous...

Details Manufacturing soft magnetic components using a ferrous... Manufacturing soft magnetic components using a ferrous...

H - Electricity

01

F

H01F 1/22 (2006.01) H01F 1/147 (2006.01) H01F 41/02 (2006.01)

Patent

CA 2272876

Near-net-shape soft magnetic components can be produced from iron powder lubricant compositions using powder metallurgy techniques. The resulting components have isotropic magnetic and thermal properties and may be shaped into complex geometry using conventional compaction techniques. A non-coated ferromagnetic powder is mixed with a lubricant and compacted. After compaction, the components are thermally treated at a moderate temperature to burn out the lubricant, relieve the stresses induced during pressing and reduce the hysteresis losses. Depending on the application, the properties of the material may be tailored by varying the content and type of the lubricant and the thermal treatment conditions.

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