FIXTURES FOR STRAIGHT-THROUGH MAGNETIZING
A large number of magnets are magnetized in a uniform field along a straight-through axis. While fixtures used for radially oriented and other specially-shaped fields must be designed for the specific magnet shape (and often, for the material properties as well), fixtures used for straight-through magnetization are able to handle a variety of tasks. Straight-through magnetizing fixtures are of two basic types, the solenoid (which may or may not have steel backing), and the C-frame. Of these, the C-frame is heavier, more expensive and takes up more space. Why then, would anyone prefer this type of fixture? The purpose of this paper is to explore the advantages and disadvantages of each type, and to present considerations for a choice between them, for particular applications. Complete design criteria for these designs is not, however, within the scope of this paper.
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