叶片式空气动力机定子材料与加工工艺优化

Material for the Stator of Vane Air Motor and Optimization of Its Processing Technology

以叶片式空气动力机定子常用的40CrMnMo等中碳合金钢加整体淬火的选材与加工工艺制作对照样本,优选稀土镁球墨铸铁加调质或正火处理为定子新的选材与加工工艺并制作被试样本,进行耐磨性能对比试验。试验数据表明,被试样本的耐磨性能与对照样本相当。以该新的选材与加工工艺制作叶片式空气动力机定子,能够显著改善叶片式空气动力机定子的加工难度,提高产品合格率,节省成本。该技术经工业性试验后获工程应用,效果良好。

The stator of vane air motor is conventionally made of medium carbon alloy steel such as 40CrMnMo and processed by a technology including integral quenching. In the research, rare-earth magnesium ductile cast iron material was selected for the stator and processed by a technology including hardening or normalizing treatment. The stators made of the above two materials respectively were compared and proven to have an equivalent wear resistance. But, the newly selected material and the new processing technology can remarkably ease the processing, improve the product qualification rate and save the cost. This technology has achieved good results in its industrial anolication.