CAJ | 학술논문

针对常规超声检测方法在进行三维多变断面转轮焊缝检测时存在的局限性，介绍了相控阵超声检测技术的特点。根据转轮焊缝容易出现的缺陷类型制作了模拟试块，设计超声相控阵检测工艺并进行检测，对检出缺陷进行常规超声检测验证。结果表明，超声相控阵技术可明显提高检测效率及检出能力，但对位向不好的层间未熔合，仍需配合直探头在焊缝弧面进行补充检测。
침대상규초성검측방법재진행삼유다변단면전륜한봉검측시존재적국한성，개소료상공진초성검측기술적특점。근거전륜한봉용역출현적결함류형제작료모의시괴，설계초성상공진검측공예병진행검측，대검출결함진행상규초성검측험증。결과표명，초성상공진기술가명현제고검측효솔급검출능력，단대위향불호적층간미용합，잉수배합직탐두재한봉호면진행보충검측。
Aiming at existing boundedness of conventional ultrasonic testing method in testing 3D changeable cross-section runner weld,this paper introduces features of phased array ultrasonic testing technology.According to defect types easy to appear of runner weld,it makes simulation samples and designs ultrasonic phased array testing technology to test detected de-fects and proceed conventional ultrasonic testing verification.The result indicates that ultrasonic phased array technology is obviously able to improve testing effectiveness and detecting ability but it is not able to finish fuse of interlamination of bad exposure.Thus,it is necessary to carry out supplementary testing on the weld cambered surface by coordinating with normal probe.