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转子铸铝是电机制造的关键工序之一。铸铝质量的优劣、效率的高低将直接影响电机的性能和生产成本。近几年来,我厂生产的小型异步电机如风扇电机、洗衣机电机的转子都是采用压力铸铝。这种铸铝方法由于压室内熔融铝液单位面积上所受比压高达30～70MPa(300～700Kgf/cm~2),压射速度2.4m/s,这样给模具的设计,铸铝转子质量和电机性能带来一些问题,主要是:1)在高压下容易发生铁心片外涨和渗铝现象;2)如果模具设计或工艺参
Rotor cast aluminum is one of the key processes in motor manufacturing. The quality of cast aluminum, the level of efficiency will directly affect the motor performance and production costs. In recent years, I plant the production of small asynchronous motors such as fan motors, washing machine motor rotor is the use of pressure die casting aluminum. This casting method of aluminum as a result of pressure within the molten aluminum per unit area under the pressure than the high pressure of 30 ~ 70MPa (300 ~ 700Kgf / cm ~ 2), injection speed of 2.4m / s, so to die design, And motor performance brings some problems, mainly: 1) under high pressure prone to flake up and aluminizing; 2) If the mold design or process parameters