東北電工局某廠在工人與技術人員的結合下,克服了種種困難,試製鑄鋁轉子成功了。 鑄鋁轉子是有很多優點的,雖然鋁的體積電阻係數 約為銅的1.55倍(實際上因鋁含有少許雜質,其體積電阻係數約為銅的1.65——1.8倍),必須增大導體的截面積來補救這個缺點。但實際上,由於籠形感應電動機轉 Northeastern Bureau of Electrical and Mechanical Services, a factory in the combination of workers and technicians to overcome the difficulties, the trial success of cast aluminum rotor. Cast aluminum rotor has many advantages, although the volume resistivity of aluminum is about 1.55 times that of copper (in fact, due to a small amount of impurities in aluminum, the volume resistivity of copper is about 1.65--1.8 times), it is necessary to increase the Cross-sectional area to remedy this shortcoming. But in fact, due to cage induction motor turn