| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a removing apparatus capable of preventing clogging in the apparatus and efficiently removing only ferromagnetic metal impurities in powder, and a manufacturing method of resin powder. <P>SOLUTION: This removing apparatus for ferromagnetic metal impurities in powder is provided with a powder quantitative supply means 20 and a trapping means 30 for trapping the ferromagnetic metal impurities in powder supplied from the powder quantitative supply means 20 in a powder supply path 10, and the trapping means 30 comprises multiple metal trapping units 31 with a single rod-like magnet 31a or multiple rod-like magnets 31a disposed at the same position to the powder supply direction. The rod-like magnet 31a is protruded to the inside of the powder supply path 10 with an angle of 30-150° in relation to the powder supply direction, and the surface magnetic force of the rod-like magnet 31a is 5,000 gauss or more. <P>COPYRIGHT: (C)2008,JPO&INPIT |
