带喷涂层水冷壁管焊接裂纹分析及返修工艺
冶金自动化(2017)
Abstract
通过分析现有焊接工艺在焊接带喷涂层水冷壁管产生裂纹的原因,研究了喷涂层在母材基体的附着方式及判定喷涂层是否存在的方法,并制定了带喷涂层水冷壁管焊接裂纹的返修工艺.采用改进后的新工艺,可以一次性处理好带有喷涂层水冷壁的焊口,减少因喷涂层混入焊缝而引发的爆管次数,可减少电厂非停次数,保证机组长期的安全运行.更多还原
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