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燃化部第十二化建公司从1964年以来,用 X 射线透照方法检查焊接三通角焊缝,对于保证焊接三通质量和帮助稳定焊接工艺起了重要作用,取得了一定的效果。为了保证X 射线透照检查的质量,他们在透照方法和透照规范工作上作了以下改进:一、对用口径65毫米以上管子焊制的三通,手能塞进管子的,用单壁透照,每个三通前、后、左、右共照四片,用萤光增感。这种透照与一般 X 射线透照一样,质量可以得到保证。
Since 1964, the Second Chemical Corporation of the Ministry of Fuel Oil has examined the welding of three-way fillet welds with X-ray radiography, which has played an important role in ensuring the quality of the welding tees and helping to stabilize the welding process, and achieved certain results. In order to ensure the quality of X-ray radiography, they made the following improvements in the method of transillumination and the standardization of transillumination: 1. For the three-way tube welded with a pipe with a diameter of 65 mm or more, Wall through the photos, each of the three before, after, left, right, a total of four, with fluorescent sensitization. This transillumination and general X-ray transillumination, the quality can be guaranteed.