阳逻电厂冷凝器 B30 白铜管泄漏原因分析

Analysis of Leak Cause of Condensers' B30 White Copper Tubes of Yangluo Power Plant

通过化学成分分析、金相分析、电子显微分析、夹杂物分析，确定了阳逻电厂冷凝器Ｂ３０白铜管泄漏是由于冶金质量不合格，Ｂ３０白铜中含有ＮａＣｌ夹杂物引起点蚀造成的．

The leak cause of the condenser tubes made of white copper of Yangluo Power Plant is found by chemical composition analysis ,metallographic analysis ,electronic microscopy and morphological analysis of inclusions.These analyses indicate that the metallurgical quality of the white copper is unqualified and the pitting corrosion is caused by the present of NaCl in white copper .These is the main cause leading to the leakage of white copper tubes.