焊缝超声波检测时DAC曲线的制作与应用
The DAC Curve Drawing and Application of Weld Seam N5 Notch for Ultrasonic Testing
摘 要
分析了传统焊缝超声波检测在灵敏度调节与缺陷定量上的不足，介绍了N5刻槽DAC曲线的两种制作方法，使不同声程处的缺陷都有自己的定量依据，简化了超声检测人员灵敏度调节和缺陷定量的步骤，减少了人员工作量。
DAC曲线
缺陷定量
评定依据
Ultrasonic testing
DAC curves
Defect quantitative
Quantitative basis
Abstract
The insufficiency of traditional ultrasonic detection sensitivity adjustment and defect quantifying for weld seam were analyzed, and two making methods of DAC curve for notches and holes were described. It provided quantitative basis for defects with different acoustic soundpath, to simplify procedure of sensitivity adjustment and defect quantifying, and reduce the work of UT inspector.
中图分类号 TG115.28
所属栏目 实践经验
基金项目
收稿日期 2011/5/17
修改稿日期
网络出版日期
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备注范雪峰(1974-)，女，无损探伤工，技师，主要从事超声检测工作。
引用该论文: FAN Xue-Feng,LU Wei-Ping,DAI Shu-Ting,ZHANG Dao-Feng,LIU Chang-Qing,CAO Shu-Lin. The DAC Curve Drawing and Application of Weld Seam N5 Notch for Ultrasonic Testing[J]. Nondestructive Testing, 2012, 34(5): 65～66
范雪峰,卢卫平,戴树亭,张道峰,刘常庆,曹书林. 焊缝超声波检测时DAC曲线的制作与应用[J]. 无损检测, 2012, 34(5): 65～66
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参考文献
【1】ANSI/API Specification 5L管线钢管规范［S］.
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