摘要
螺旋埋弧焊钢管内焊缝自动跟踪问题，是国内外长期以来没有很好解决的一大难题。本文对实现自动跟踪的原理进行了比较详尽的分析和研究，提出了焊缝背面两侧温度呈驼峰形分布的全新理论。作者认为，以往人们使用的内焊头手动跟踪都是遵循驼峰理论来实现的。模拟手动跟踪，进行仿生学研究，是实现内焊缝自动跟踪的一种重要途径。利用现代传感技术，测出内焊缝两侧的温度曲线，通过微机可以很快地算出两峰点Ａ１Ａ２与谷点Ｏ的距离。
he problem of automatic tracking in helix welded tube inside welding with SMAW has not been solved completely at home and abroad. The principle of automatic tracking was discussed and analyzed in detail. A new type theory, which the temperature distribution at the back surface of welded bead was like the camelback, was founded in this paper, and it was pointed out that the tracking by hand controlling for inside welding had been realized by reason of following the camelback theory. Analogue tracking of hand controlling and tracer analysis was an important way of realizing automatic tracking in helix welded inside welding. The transverse temperature curve of welded joint would be measure with modern transducer technique. The displacement between the peaks(A1,A2) of camelback and the lowest point(O) would be calculate by computer. As the right distance was not equal to the left, a sign would be produced and drive the welding torch to suitable position.
出处
《焊管》
1997年第1期12-15,共4页
Welded Pipe and Tube
关键词
埋弧焊
焊接钢管
焊缝
缺陷
自动跟踪
SMAW welded tube weld bead automatic monitoring temperature distribution flaw
