电机转子铸铝采用的1号铝,其电阻系数在20℃时为0.027～0.03欧·毫米~2/米,纯度不低于99.5％,其杂质不大于(0.3％Fe、0.22％Si、0.15％Cu、0.45％Fe+Si、0.5％杂质总和)。一般电机制造工艺规定,用1号铝熔化后含铁量大于1.0％,杂质总和不大于1.2％。那么熔化后所增加的各种杂质对铸铝转子性能有何影响呢?本文拟就此谈点看法。 Aluminum 1 used in rotor cast aluminum has a resistivity of 0.027-0.03 ohm · mm² / m at 20 ° C and a purity of not less than 99.5% with an impurity of not more than 0.3% Fe, 0.22% Si, 0.15 % Cu, 0.45% Fe + Si, 0.5% impurities sum). General motor manufacturing process requirements, with 1 aluminum melting iron content of more than 1.0%, the sum of impurities is not more than 1.2%. So after melting increases the various impurities on the cast aluminum rotor performance impact? This article is intended to talk about this point of view.