出口强度
出口强度-
通过对不同通流截面速度分布的比较，发现分流叶片可以延缓横向二次流的发展，降低叶片吸力面扩压程度，减小叶轮出口尾迹的强度与范围，对提高叶轮效率起到决定性的作用。
Compared with the flow inside non-splitter impeller , splitter impeller enhances flow efficiency through alleviating passage cross flow , reducing diffusion along suction surface and controlling outlet wake .
-
适当降低挤压温度，出口温度控制在490～510℃，加强出口淬火强度，抑制晶粒粗大，有利于焊合线条纹的改善。
Decreasing the extruding temperature , controlling the outlet operating temperature between 490 ~ 510 ℃ and enforcing the outlet quenching can improve the welding mark situation .