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This paper analyses the formative reason,describes the methods of calculation and evaluation of erosion fatalness about steam turbine blade.

末级长叶片的水蚀是汽轮机正常运行过程中的常见现象。

The reasons,mechanisms and processes of erosion form and development for the steam turbine blade is described and the erosion conditions experienced by the steam turbine blades(specially the last stage blade) during operation in certain power plants are analyzed here in.

介绍了汽轮机叶片水蚀形成、发展的原因、机理及过程,描述了汽轮机叶片(特别是末级叶片)在某些电厂运行过程中受到的水蚀状况,并由此总结出“叶片水蚀过程线”。

Soil Particls Loss by Water Erosion;

不同土壤颗粒组成在水蚀过程中的流失规律

The mechanism,formation and development of water erosion at last stage blade are analyzed.

分析了汽轮机叶片水蚀的机理及水蚀的形成与发展过程,介绍了秦山第二核电厂650 MW 2号汽轮机末级叶片水蚀状况,对叶片现场修复的工艺方法、技术要求、工艺过程及注意事项进行了详细论述。

The cause of water erosion in the end rotor blade of 100 MW steam turbine is analyzed with solution proposal.

对神木发电有限公司100 MW汽轮机末级动叶片水蚀原因进行了分析,并提出了解决方案。

The concept and measures of runoff-dispersing on water erosion control in the large dump of opencast mine;

露天矿大型排土场水蚀控制的径流分散概念及其分散措施

Based on the 16 years practice of soil and water conservation in the dump of Antaibu opencast mine, the water erosion control measures of large dump are studied, and the runoff-dispersing erosion control pattern is put forward.

以安太堡露天煤矿排土场 16年水土保持实践为基础 ,通过调查观测 ,对半干旱黄土区大型排土场水蚀控制进行分析研究。

Thus some specific measures for water erosion control should be taken at the dump.

暴雨造成排土场剧烈水蚀,其水蚀特征与原地貌相比有较大差异,属流域水土流失治理中的特殊问题,需要采取一些有针对性的水蚀控制措施。

It underwent cold alteration and hydrothermal alteration,with a welldeveloped characteristics.

其围岩蚀变特别发育， 先后为冷水蚀变作用和热液蚀变作用两期。

The dimension of the against water erosion zone of 40″ and 851 mm last stage blades for large capacity steam turbine is 270× 25 mm.

大型汽轮机40″与851mm末级叶片进汽边防水蚀部位淬火带尺寸为270×25mm。