Through dyecheck, X-ray test, and metallographic examination, quite a lot of cracks were found in the welds of a deaerator storage tank at the cogeneration plant of Shanghai Petrochemical Works.
上海石化总厂热电厂除氧器水箱，经着色探伤、x射线探伤、金相检验等方法检测后，发现焊缝有大量裂纹。
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BLUING / BLUE UP : Process of using blue dye to coat a surface of a master, gauge, or piece of product to check a flat, circular, or tapered surface.
着色检查：使用蓝色染料涂在模具，量规或者产品表面以检查平面、圆面或者锥面的工序。
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Run the system for 10 minutes for the dye to mix and circulate and check for leaks using a combination of the UV lamp and goggles and an electronic leak detector.