摘要
本文介绍了外径等于或小于89mm小口径管对接焊缝的透照方法、工艺条件及注意事项。
Based on the practice experiences and the standard SD 143-85 and appendix E of GB3323-87, the paper discusses radiography methods, process conditions and some notices of butt welds in small diameter pipes applied in home now.
出处
《压力容器》
1992年第3期41-45,23,共6页
Pressure Vessel Technology
