Recycling critical raw materials from waste electronic equipment
Recycling critical raw materials from waste electronic equipment
Recycling critical raw materials from waste electronic equipment
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<strong>Recycling</strong> <strong>critical</strong> <strong>raw</strong> <strong>materials</strong><br />
<strong>from</strong> <strong>waste</strong> <strong>electronic</strong> <strong>equipment</strong><br />
Table 19: Applications and weights of rare earth magnets in notebooks<br />
Magnet application No. of magnets per<br />
notebook<br />
Voice coil accelerator for a 2.5 inch<br />
HDD<br />
Mean total weight per notebook [g]<br />
usually 2, sometimes 1 3.0<br />
Spindle motor for HDD 1 ring magnet 1.1<br />
Spindle motor for optical drive 1 ring magnet 1.6<br />
Loudspeaker magnets 2 2.5<br />
Figure 11: Rare earth magnets <strong>from</strong> the voice coil accelerator (photo Oeko-Institut)<br />
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