火箭推进2024，Vol.50Issue(6)：135-142,8.DOI:10.3969/j.issn.1672-9374.2024.06.012
小直径导管焊缝X射线柔性检测技术与应用
X-ray flexible detection technology for small-diameter pipe welds and its application
摘要
Abstract
Aiming at the characteristics of spatial irregular structures for small-diameter pipe in liquid rocket engines,a flexible X-ray detection system for pipe weld was developed independently,which overcame the problem of visual recognition of complex structures,achieved automatic detection of over 500 types of engine pipes and solved the long-standing problem of difficult radiographic arrangement of pipes.The detection system can recognize,calibrate,and coordinate various pipe products automatically,and switch the gripping fixture and detection parameters adaptively according to the characteristics and specifications of different pipes.By combining robot path planning with radiographic pose programming control,the detection consistency reaches 100%.Some work was carried out to study the digital radiographic testing process by using this detection system.Good image resolution and detection sensitivity were obtained.The image quality is better than the standard requirements.Compared to the X-ray film photography,the detection time of a single pipe is shortened to 90 s,personnel labor intensity is reduced significantly,and the efficiency is increased by more than 5 times.关键词
小直径导管/焊缝/X射线/自动化检测/数字成像/火箭发动机Key words
small-diameter pipe/weld/X-ray/automatic detection/digital imaging/rocket engine分类
矿业与冶金引用本文复制引用
黄欣磊,雷征,赵本勇,马涛,王永红,刘国增,闫明巍..小直径导管焊缝X射线柔性检测技术与应用[J].火箭推进,2024,50(6):135-142,8.基金项目
航天科技集团第六研究院共性基础研究项目(2022Tm GJ5001-M) （2022Tm GJ5001-M）
