鼠笼式异步电动机的制造大都存在转子的铸铝工序,目前,我国许多中小型电机厂家都是采用压力铸铝进行生产的。然而,由于缺乏适合电机转子铸铝特殊工艺条件的专用压铸设备,他们只好或是利用普通液压机进行繁锁的改装,或是购买昂贵的普通卧式冷室压铸机来用于电机转子的铸铝。这样做不仅增加了小型电机的制造成本,而且因为电机转子的铸铝毕竟具有许多 Squirrel-cage induction motor manufacturing most of the existence of rotor aluminum casting process, at present, many of our small and medium-sized motor manufacturers are using pressure casting aluminum production. However, due to the lack of special die-casting equipment suitable for the special process conditions of motor rotor castings, they either had to make heavy conversion using ordinary hydraulic machines or buy expensive ordinary horizontal cold room die-casting machines to cast aluminum for motor rotors . This not only increases the manufacturing cost of a small motor, but also because the cast aluminum of a motor rotor has many