针对2MW-5MW风电轮毂铸件铸造工艺进行了分析，分别从不同铸造工艺方法对风电轮毂铸件的质量影响进行了对比，分析了不同工艺方案的优缺点以及工艺设计方案关键要点。结果表明，采用主轴孔朝上的方案，厚大部位选用冒口和冷铁进行补缩平衡，浇注系统中设计过滤系统，同时选择大流量、低流速、无紊流浇注系统可以达到减小铸件壁厚，降本增效、节能减排的目的。

The casting process of 2MW-5MW wind turbine hub casting was analyzed. The influence of different casting process methods on the quality of wind turbine hub casting was compared, and the advantages and disadvantages of different process schemes as well as the key points of process design schemes were analyzed. The results show that the main shaft hole is upward, the riser and chiller are used to balance the thickness, the filter system is designed in the pouring system, and the casting wall thickness can be reduced, cost reduced, efficiency increased, energy saving and emission reduction can be achieved by selecting the pouring system with large flow, low flow rate and no turbulence.