在锅炉、压力容器、化工工艺管道等制作安装中 ,Ｘ射线探伤底片质量的优劣 ,直接影响到对产品质量评定的准确率。而在影响底片质量的因素中 ,底片水渍则是在自然干燥底片条件下占主要因素。如何在尽量降低生产成本的前提下 ,大幅度减少底片水渍 ,成为无损检测Ｘ射线探伤中的难 In the boiler, pressure vessel, chemical process piping and other production and installation, the quality of X-ray flaw detection film, a direct impact on product quality assessment accuracy. In the factors that affect the quality of the negatives, the film water stains is the main factor in the natural dry film conditions. How to minimize the cost of production under the premise of drastic reduction of water stains, a non-destructive testing of X-ray detection difficult