裂纹是压力容器最危险的缺陷，常是导致压力容器脆性破坏的主要原因。而除氧器内存有大量饱和水，一旦爆破，由于饱和水迅速蒸发成蒸汽，体积急剧膨胀，所以爆破威力巨大。因此对除氧器裂纹的检查和消除就显得非常重要。对除氧器裂纹的检查一般采用宏观目视检查和表面探伤... Cracks are the most dangerous defects of pressure vessels, often leading to brittle failure of pressure vessels. The deaerator memory has a lot of saturated water, once the blasting, due to rapid evaporation of saturated water into steam, the rapid expansion of the volume, so a huge blasting power. Therefore, the deaerator crack inspection and elimination is very important. Inspection of deaerator cracks generally use macro visual inspection and surface inspection ...