焊缝氢含量的测试分析表明，阵列式射流冲击热沉系统可以改善接头的残余应力分布，防止冷却水侵入焊缝。
The hydrogen contents investigations show that the FSW process with array jet impingement sink appaatus can prevent the joints form the effect of colding water.
对某厂x 80高钢级管线钢母材、焊缝、热影响区进行了夏比冲击韧性试验，对其有效晶粒进行了研究。
The Charpy impact test of base metal, weld and heat affected zone of X80 grade pipeline steel of certain factory was conducted, and its effective grain was researched.
对702个CVN冲击试验数据应用对数数学分析模型进行回归，得到桥梁钢和焊缝的通用计算表达式。
A logarithm mathematical model is used to analyze 702 CVN impact test data and by means of regression, a general equation is obtained for bridge steel and welding seams.
如何提高erw钢管焊缝冲击韧性是制管技术中的一大难题。
How to increase the welded seam impacting toughness of ERW pipe is a great problem among the technology of pipe manufacture.
为了解随焊冲击碾压法机理，用数值计算方法对冲击碾压轮引起薄壁结构焊缝金属塑性流变行为和应变场变化进行了分析。
The plastic flow and the variation of the strain field in welds caused by impact rollers were analyzed numerically to study the effect of weld with trailing impact rolling (WTIR).
在大量生产实践的基础上分析了影响ERW直缝电阻焊钢管焊缝冲击韧性的各种因素。
The article analyzes that all factors effect impacting toughness of welded seam of ERW pipe on the basis of mass produce and practice.
通过对冲击韧性的测试结果与微观组织的分析，确定出使焊缝冲击韧性最佳的焊接工艺参数。
Meanwhile the optimal welding parameter which was suitable for welding line impact toughness was gained by analysis on the test result of impact toughness and microstructure.
在碱性铁粉焊条药皮中添加不同量的纳米稀土氧化物粉体，对焊缝进行扩散氢含量、低温冲击及化学成分的测试和分析。
Adding the different nanometer CeO2 content to alkali iron powder electrode, the diffusible hydrogen content, low-temperature impact and chemical composition of the weld were tested.
研究结果表明，焊缝具有优良的强韧性匹配，焊接接头强度及冲击韧性均满足管线钢工程焊接技术条件。
The results show the weld has good properties in strength and toughness satisfying the welding demands of pipeline.
通过改变焊缝夏比冲击试样的缺口取向，研究了缺口位向对多层焊缝金属韧性及断裂过程的影响。
By changing the nolch local ion of Charpy impact test specimens studied the effect of nolch location on toughness and cracking process in multi-layer welds.
根据试验测定的焊缝各区冲击韧性、断裂韧性、疲劳裂纹扩展速率和疲劳裂纹扩展门槛值，对焊缝力学性能作出综合评价。
The mechanical properties of the butt welded joints have been evaluated according to the impulsive and fracture toughness as well as the rate and threshold values of fatigue crack propagation.
结果表明，经过焊后热处理后焊缝出现严重的低温脆化，其冲击试样的断口为解理状形貌；
The results show that after post-weld heat treatment(PWHT), the welds of X80 steel seriously embrittle, and the fracture morphology of impact specimens is cleavage.
结果表明，清根方式对焊缝冲击韧度有明显影响，用碳弧气刨清根得到的焊缝冲击韧度最好，而用酸性衬垫得到的焊缝冲击韧度最差。
It was found that impact toughness of weld metal was maximum using carbon arc air gouging, and it was minimum using acid backing.
冲击处理使焊缝区和母材区的强度和伸长率均有所增加。
The tensile strength and the elongation percentage of the parent metal and the weld zone increased slightly.
冲击试样取样位置对焊缝冲击性能有明显的影响，板厚1/2位置的低温冲击功均低于1/4位置。
The effects of sampling position on low temperature impact property of the welds are obvious, and the impact energy of 1/2 plate thickness is lower than that of 1/4 plate.
在较大焊接热输入条件下焊接，焊缝金属产生粗大先共析铁素体、过热区产生粗大粒状贝氏体，焊接接头低温冲击韧性因此降低。
The coarse primary ferrite appeared in weld metal, and coarse bainite appeared in heat-affected zone under larger heat input welding condition, which caused low...
在较大焊接热输入条件下焊接，焊缝金属产生粗大先共析铁素体、过热区产生粗大粒状贝氏体，焊接接头低温冲击韧性因此降低。
The coarse primary ferrite appeared in weld metal, and coarse bainite appeared in heat-affected zone under larger heat input welding condition, which caused low...
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