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Wet Process and Dry Process

An anisotropic ferrite magnet can haveawet and dry process anisotropy. The difference between the wet process and dry type is the manufacturing process. The wet type adds water to the material’s fine powder to make it muddy, dehydrating in a magnetic field, and press forming slowly. The dry type is made by adding a binder (styrene) and press forming in a magnetic field.

【Wet Process and Dry Process】Differences of the Respective Characteristics

Wet Process Anisotropic Ferrite Magnet
Achieves high orientation and density because slipping of the magnetic particles is good and crystal direction is easily arranged by molding the muddy material (slurry regime) while dehydrating.
Dry Process Anisotropic Ferrite Magnet
The flexibility is less than the wet process in marshaling the crystalsdue to the molding powder’s status after adding the binder.
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