铜钢堆焊接头的超声信号特征及质量评价  

Ultrasonic signal character and quality evaluation of Cu/steel surfacing weld

作　　者：高双胜[1] 刚铁[1] 桂光正[2] 袁媛[1] 

机构地区：[1]哈尔滨工业大学现代焊接生产技术国家重点实验室,哈尔滨150001 [2]宝山钢铁股份有限公司宝钢分公司钢管厂,上海201900

出　　处：《焊接学报》2007年第5期101-104,共4页Transactions of The China Welding Institution

摘　　要：采用水浸聚焦超声C扫描成像的检测方法,研究了铜钢堆焊接头的质量评价。首先从理论上分析了聚焦声束垂直于圆柱形工件表面入射时,沿圆柱体轴线与圆周两个互相垂直的方向上的声场情况。在此基础上对堆焊试件进行了超声C扫描检测试验,为了验证检测结果的可靠性,在试件上典型位置处进行了破坏性检测试验,分析了相应的超声A扫描信号特征。结果表明,采用该方法评定铜钢堆焊接头质量是可行的,同时指出采用从基体一侧入射的检测方式能够获得较高的可靠性。By using water immersion focusing method in an ultrasonic C-scan inspection system,the quality of Cu/steel surfacing weld was evaluated.The sound field in the two planes of axial and radial to the cylinder were analyzed when the sound beam vertically incidents into the cylindrical work piece.Based on the above theoretical analyses,surfacing welds were inspected by C-scan mode.In order to verify the reliability of ultrasonic test,ultrasonic A-scan signals received from typical area of the workpiece were studied and the corresponding destructive test was done.The result shows that it is feasible to evaluate the surfacing weld by using the proposed method.Moreover,the tested result is more reliable when sound beam incidents into the piece from the base metal.

关 键 词：异种材料连接 堆焊 超声C扫描 水浸聚焦 

分 类 号：TG115.28[金属学及工艺—物理冶金]