脱硫塔底板焊接过程中的应力分析与变形控制

焊接是通过加压或加热或两者并用,用或不用填充材料使同种或异种材料达到微观粒子间永久性结合的过程。其最显著的特点是材料间局部加热或加压,这使得焊接难免在材料间产生残余应力等内部应力,在宏观上表现为焊接变形。如何较好地控制焊接变形一直是焊接的热门话题。在张掖电厂一期脱硫塔底板的焊接过程中,我们采用了良好的焊接工艺,很好的控制了焊接变形。

Welding is performed by heat or pressure or both and used, with or without filler material to achieve the same or dissimilar materials with microscopic particles of a permanent process. The most notable feature of the material between the local heating or pressure, which inevitably makes the welding residual stress in the material between the internal stress, etc., on the performance of the macro welding deformation. How to better control the welding deformation has been a hot topic in the welding. Zhangye Plant a desulfurization tower chassis welding process, we have adopted a good welding, good control of the welding deformation.