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pipeline hydraulic performance test [建] 管路性能试验
The influence of pre-heating temperature on organization and performance of X80 pipeline steel was investigated by weld thermal simulation technique and the instrumented Charpy impact toughness test.
文章分析了自保护药芯焊丝的主要成分及作用，介绍了天津市金桥焊材集团有限公司研制的X80管道钢用自保护药芯焊丝的力学性能试验结果。
The influence of pre-heating temperature on organization and performance of X80 pipeline steel was investigated by weld thermal simulation technique and the instrumented Charpy impact toughness test.
采用焊接热模拟技术和显微分析方法，研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
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