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Why should the rotor be cast aluminum?
The motor is the source of power for the machinery, many machines have the application of the motor, in order to improve its performance during the use of the motor will be treated with rotor cast aluminum, do The specific reasons for rotor cast aluminum processing are generally as follows:
Only the squirrel-cage asynchronous motor rotor will have a cast aluminum end ring. The cast aluminum end ring has three functions. First, it is used as the end of the rotor conductor, also known as the short-circuit ring, which acts as a connecting rotor winding. Secondly, it also acts as a simple fan to dissipate heat; thirdly, it also acts as a counterweight for dynamic balancing; the reason why it is made of rotor-cast aluminum is to improve its performance.
Three-phase asynchronous motor rotor is placed in the mold core of the good slot, for centrifugal casting, the purpose is to terminate the aluminum conductor in the rotor core hole together, as a conductive loop, small motors are generally still at both ends of the aluminum The fan blades are cast directly on the top.