| 锻件侧壁干涉对超声检测结果的影响 |
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| 引用本文： | 梁恭增. 锻件侧壁干涉对超声检测结果的影响[J]. 压力容器, 2001, 18(2): 74-76 |
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| 作者姓名： | 梁恭增 |
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| 作者单位： | 湖南安淳高新技术有限公司 |
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| 摘 要： | 1 前言超声波检测压力容器锻件 ,声束入射到工件边界 ,超声波在工件界面反射并发生波形转换 ,由此会产生超声波的叠加和干涉 ,使原主声束的指向性、灵敏度受到影响 ,因此超声波检测压力容器锻件近侧壁缺陷时 ,定量、定位、定性不准确 ,容易出现漏检和误判 ,对产品质量有很大影响。目前国内锻件超声波检测标准对这一问题还没有具体的规定和要求 ,本文就此提出压力容器锻件超声波检测新工艺 ,实践证明 ,此工艺能有效解决锻件近侧壁缺陷的检出及缺陷定量定性分析等问题 ,避免漏检和误判。 2 理论分析纵波探伤时 ,探头若靠近工件边缘 ,则…
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| 关 键 词： | 侧壁干涉 灵敏度 裂纹 压力容器 超声检测 锻件 |
The Effects of Side-Wallon the Results of Ultrasonic Inspect |
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| Abstract. The Effects of Side-Wallon the Results of Ultrasonic Inspect[J]. Pressure Vessel Technology, 2001, 18(2): 74-76 |
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| Authors: | Abstract |
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| Abstract: | In this paper,the effects of workpiece of the side-wall on the results of ultrasonic inspection were theoretically analyzed.In order to effectively avoid erroneous judgment and missing detection on workpiece flaws,a new inspection process in which an additional ultrasonic transversal wave was imposed to flaws neighboring the workpiece side-wall was proposed.The process has been successfully applied in practice and accordingly the quality of the forgings can be guaranteed. |
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