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我厂156台压力容器的全部纵焊缝和丁字缝,其中三类容器全部焊缝的超声波检查,和81根高压管道(320kg/cm~2)的磁粉探伤发现:在不同程度上存在超过验收标准的缺陷的容器共37台计缺陷174处,管道30根,缺陷91处。17台返修容器现场解剖的着色探伤表明,主要超标的缺陷是未焊透、未熔合、裂纹及一定数量的气孔和夹渣。
The total welds and taps of 156 pressure vessels in our factory, the ultrasonic inspection of all the welds of the three types of vessels, and the magnetic particle inspection of 81 high-pressure pipes (320kg / cm ~ 2) found that, in varying degrees, A total of 37 standard defective containers were counted at 174 stations, with 30 pipes and 91 defects. The stain inspection of 17 repaired containers on site showed that the main defects were impermeable, not fused, cracks and a certain number of pores and slag inclusions.