厚壁筒体的超声检测  

The Ultrasonic Inspection for Thick Wall Cylinder Body

作　　者：李伟[1] 

机构地区：[1]武汉重工铸锻有限责任公司,武汉430084

出　　处：《无损检测》2013年第8期61-64,77,共5页Nondestructive Testing

摘　　要：针对壁厚外径比大于0.2的环形及管状产品的轴向缺陷进行接触法横波检测,采用特殊变形横波法实施检测,在保证纯横波以45°折射角扫查并满足信噪比和检测灵敏度的前提下,使被检产品的整个壁厚得到有效而可靠的检测。The ultrasonic shear wave technique with contact method for the detection of longitudinal imperfection in ring and pipe type products of wall thickness/outer diameter ratio being over 0. 2 was tested. Special transformed shear wave method was used during testing. In the premise that the product was scanned by pure shear wave with 45°angle of refraction and signal/noise ratio and test sensitivity were insured, the whole wall of product was inspected effectively and reliably.

关 键 词：厚壁筒体 壁厚外径比 特殊变形横波法 

分 类 号：TG115.28[金属学及工艺—物理冶金]