Axis densities in normal direction inverse pole figure of surface in the pure ferrite steel were measured and calculated with different axis density calculation formulas,and according to the axis densities,the ferrite content in this steel was calculated,and then the ferrite contents calculated with different formulas are compared to judge the accuracy of each formula.
采用三个不同的轴密度计算公式测定和计算出了纯铁素体钢中表面法向反极图中的轴密度,并由此计算出该材料中铁素体含量,然后通过比较由不同公式所计算出的铁素体含量的大小来判断各公式的优劣。
Fault Analysis and Retrofits of the Shaft Seals of the Melt Polystyrene Pumps;
根据聚苯乙烯装置熔体泵的实际工作条件 ,分析了泵轴密封失效的原因 ,针对密封失效给出了具体改造方案 ,从根本上解决了熔体泵密封泄漏严重的问题。
Modification of main shaft seal in high-head and large-capacity pumped-storage power unit;
高水头大容量抽水蓄能机组主轴密封改进
The main shaft seal of pump turbines with large capacity at high rotational speed is more liable to failure as compared with that of conventional pump turbines.
大容量、高转速水泵水轮机主轴密封相对常规水轮机主轴密封更容易发生故障。
In this paper,the advantages for construction of thrust bearings,turbine guide bearings,main shaft seal,runner seal are analyzed.
通过运行实践 ,本文对该水轮发电机组的推力轴承、水导轴承、主轴密封、转轮密封等主要结构进行了分析 ,仅供参考。
Since such-and-such problem is in existence several kinds of main shaft sealing of water-turbine,a new type seal form using for francis turbine and pump-turbine is introduced,its working principle,structural feature and points for attention are introduced.
鉴于目前水轮机的各种主轴密封存在诸多问题,本文介绍了一种适用于混流式水轮机和水泵水轮机的新型密封形式——无接触密封,介绍了其工作原理、结构特点和使用注意事项。
It will be harmful to the unit for the big leakage from the main shaft sealing.
本文介绍了一种结构简单、安装维修方便、密封性能可靠、经久耐磨寿命长的新型水轮机主轴密封组合式密封环的结构及其应用,将对提高水电站运行管理水平、经济效益有较好的效果。