一种钛合金棒材内部夹杂物无损检测方法及装置

By combining thermal pulse excitation with thermal imaging and ultrasonic signal amplitude analysis, the problem of difficult identification of tiny inclusions in titanium alloys has been solved, achieving efficient and reliable detection under strong structural noise background.

CN122016934BActive Publication Date: 2026-07-17BAOJI CITY QICHEN NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BAOJI CITY QICHEN NEW MATERIAL TECH CO LTD
Filing Date
2026-04-10
Publication Date
2026-07-17

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Abstract

本发明涉及超声波检测技术领域，具体涉及一种钛合金棒材内部夹杂物无损检测方法及装置。该方法包括：通过施加热脉冲激励，同步获取多时刻热成像与热激励前后超声A扫信号；基于像素温度时序变化计算延迟冷却因子，并结合其在多方向邻域内的空间分布确定热斑存在率，筛选热学异常区域；在该区域内，利用超声信号幅度的时序波动性确定峰值冗余系数，并通过窗口滑动互相关分析热激励前后A扫波形获得畸变度，融合二者得到超声异常程度，据此判定是否存在夹杂物。该方法有效规避钛合金粗晶结构引起的超声散射噪声，提升微小夹杂物检测的可靠性。
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