Permanent magnet provided to dynamo-electric machine, and method for manufacturing same
A method for manufacturing a permanent magnet provided to a dynamo-electric machine comprises: a step in which a groove having a smaller depth and a greater width than a notched groove for breaking is formed in a portion along which the permanent magnet is broken and divided; a step in which a notch...
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Format: | Patent |
Sprache: | chi ; eng |
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