In the waste motor recovery, to determine the amount of copper is how much can be determined, can calculate how much profit of these motors, in the recovery of the situation is not to face a loss, these are the most basic knowledge of motor recovery, is engaged in waste motor recovery personnel must master the basic knowledge.

What is motor lamination? The two main mechanisms that make up the DC motor are the stator and the rotor. The annular iron core, together with the support windings and coils, forms the rotor. The iron core rotates in the magnetic field to generate voltage in the coils, which creates eddy currents. Eddy current is a magnetic loss. When a DC motor loses power due to eddy current flow, it is called eddy current loss. Several factors influence the amount of power loss attributed to eddy flow, including the thickness of the magnetic material, the frequency of the induced electromotive force, and the density of the magnetic flux. The flow of current in the material resistance will affect the way the eddy is formed. For example, as the cross-sectional area of the metal decreases, this results in less eddy current. Therefore, the material must be kept thinner to minimize the cross-sectional area to reduce the amount of eddies and losses.