详细介绍了采取顶注式浇注系统、成形外冷铁、复合铸型、组芯造型的铸造工艺，成功地生产出批量铝叶轮。
The casting technique with top gating system, outer shaped iron chill, compound casting mold and core assembly molding was used for producing aluminum impeller on a large scale successfully.
介绍了对风机叶轮前盘采用分段压型和组焊的工艺方案以及制造工艺的过程。
Sectionally pressing and assembled weld technology of front disc on fan impeller is introduced.
采用直接求解偏微分方程组的方法生成具有复杂扭曲规律的三元离心叶轮贴体网格坐标。
The body-fitted computational grid for twisted channels of a centrifugal impeller is generated by solving elliptic partial differential equations directly, so that the grid lines are smooth.
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