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针对末级再热器管排与管卡磨损问题,找出了其磨损原因并制定科学合理的焊接工艺进行了现场补焊返修,指出了T91管补焊时应注意的问题及解决办法。
In order to solve the problem of abrasion of tube row and tube card of final reheater, the cause of wear was found, and a scientific and reasonable welding process was established to repair and repair the welding on site. The problems and solutions that should be paid attention to when T91 tube was repaired were pointed out.