摘要
在概述SA335-P91钢性能的基础上,分析了P91钢主蒸汽管焊接工艺评定方案。结合现场焊接经验,总结P91钢管焊接过程中易出现的质量问题,并提供了长管和死口的背面充氩保护的方法。
Through briefly reviewing performance of SA335 - P91 steel,SA335 -P91 main steam pipe steel welding process evaluation project is analyzed. Combining with fields welding experience,quality problems on SA335 - P91 steel pipe during welding is summarized,and methods of back argon shield on long and dead pipe crater are put forward.
出处
《河北电力技术》
2008年第3期50-52,共3页
Hebei Electric Power
关键词
P91钢
蒸汽管道
焊接
冲击功
硬度
P91 steel
steam tube
welding
impact energy
rigidity
