[关键词]
[摘要]
鼠笼电机转子质量直接影响电机的性能。立式压铸工艺是工业电机常用的生产工艺。传统立式压铸采用增压方法达到一定的压射比压,压射系统常在超高压状态下工作,易产生故障影响生产,同时增压的滞后对产品质量的提高不大,转子填充率较低。大比压压铸工艺通过增大压射缸与压铸熔杯的面积比,利用中等蓄能器压力实现一次性大比压压铸,设备工作稳定,不易发生故障,转子的内在质量明显改善,填充率比传统工艺提高了3%~5%,对整机性能有较大提升。
[Key word]
[Abstract]
The squirrel-cage rotor plays a critical role in motor performance. Vertical die-casting is a common production process for industrial motors. The traditional vertical die-casting technique adopts a boosting method to achieve a certain injection ratio pressure, and the injection system is often operated in an ultra-high-pressure state. It is likely to cause failures in production. What’s more, the lagging of pressurization has limited help in quality improvement, and the rotor filling rate is low. The high pressure ratio die-casting process increases the area ratio of the injection cylinder to the die-cast melting cup, using the medium energy accumulator to achieve one-time high pressure ratio die-casting. The equipment works stably and is not prone to failure. Compared with the traditional technique, the quality of the produced rotor is significantly improved, and the filling rate is increased by 3%~5%, which greatly improves the overall performance of the motor.
[中图分类号]
[基金项目]
江苏省科技基础设施建设计划项目(BM2019292)