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从解决生产中所碰到的实际问题入手,探讨了焊缝射线照相法探伤工作中影响一次透照有效长度的几种因素,并导出了常用的几种透照方法的一次透照最大有效长度的计算公式,也适当举例说明了这些公式的应用。
Starting from solving the practical problems encountered in production, several factors affecting the effective length of one transillumination in the radiographic testing of welds were discussed. The maximum transillumination effective length of several commonly used transillumination methods Of the formula, but also an appropriate example of the application of these formulas.