The typical lamination defect of steel plate is introduced herein by analyzing actual situation.The proposal is presented that steel plate should be detected 100%by UT before manufacturing to control the quality.

• 对分层类型缺陷进行阐述，分层缺陷检测、鉴定，并对一钢板分层实例进行分析总结，提出对钢板逐张进行100%25的超声波探伤，将缺陷消除在最初阶段。