Q345C钢板探伤不合格原因分析  

Analysis of Disqualification of Q345C Steel Plate in Ultrasonic Inspection

作　　者：江卫华[1] 刘学一[1] 吴斌[1] 李战军[1] 

机构地区：[1]首钢技术研究院宽厚板研究所,北京100041

出　　处：《热加工工艺》2008年第18期102-105,共4页Hot Working Technology

摘　　要：通过取样分析,研究了冶炼、轧制以及轧后控冷工艺对Q345C钢板微观组织及探伤结果不合格的影响。结果表明:中心偏析、裂纹、轧后水冷、MnS等夹杂物以及氢均对钢板的探伤结果造成不利影响。The influences of the steelmaking, continuous casting, rolling and ACC processing parameters on the microstructure and the result of ultrasonic inspection were analyzed by sampling from the Q345C plates. The results show that the central component segregation, micro-cracks, ACC processing, the inclusion of MnS, as well as hydrogen in steel plates have bad effect on the result of ultrasonic inspection.

关 键 词：Q345C钢板 超声波探伤 微观组织 内部质量 

分 类 号：TG157[金属学及工艺—热处理]