摘要
大型储罐底板焊接后的变形主要有波浪变形和角变形,通过对储罐成型的研究发现,大型储罐底板的焊接变形可以通过选择合理的组装方法、焊接顺序和焊接方法得到控制。其中波浪变形应注重降低焊接过程中对接头的约束,即通过减小焊接内应力而得到控制;角变形可通过改变焊接方法以降低板厚方向温差来减小。底板组焊完毕后还要进行严密性试验,其目的是保证焊缝在一定压力下不泄漏。
The wave deformation and angle deformation are the main deformation modes of welded tank bottom plates, Through the research on tank forming, the large tank bottom plate welding deformation can be controlled by reasonal assembling method, welding sequence and welding methods. The bottom plate should be tested after welding, to ensure the weld seam does not leak under pressure.
出处
《机械工程与自动化》
2013年第5期110-111,114,共3页
Mechanical Engineering & Automation
关键词
储罐底板
组装
焊接
tank bottom plate
assembly
welding
