| 简介 |
PROBLEM TO BE SOLVED : To provide a method of recycling that collects a slightly contained rare earth alloy, such as a neodymium alloy, from a used product in which a rare-earth sintered magnet, such as a neodymium sintered magnet, is incorporated in combination with a general device. SOLUTION : The method of recycling the sintered magnet collects a high-concentration rare-earth alloy, such as the neodymium sintered magnet, from the used product, such as an HDD, in which the rare-earth sintered magnet, such as the neodymium sintered magnet, is incorporated by sieving the used product into a rough particle group and a fine particle group after heating and demagnetization, and crushing by a crusher, further sieving the fine particle group into a rough particle group and a fine particle group by pulverization by a pulverizer, and thus sorting out only the rare-earth sintered magnet, such as the neodymium sintered magnet, which is made fine during the crushing and pulverization. COPYRIGHT : (C)2010, JPO&INPIT |
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