药芯焊丝熔敷金属中扩散氢含量不同测定方法的对比研究  

Comparison of diffusion hydrogen in flux - cored wire weld metal by different measuring methods

作　　者：方乃文[1] 李连胜[1] 杨子佳[1] 齐万利[1] 李苏珊[1] 

机构地区：[1]机械科学研究院哈尔滨焊接研究所,150028

出　　处：《焊接》2012年第10期43-47,71,共5页Welding & Joining

摘　　要：熔敷金属中的扩散氢含量,是产生延迟裂纹的主要原因之一。为防止产生裂纹,除焊前、焊后采取适当的热处理、合适的焊接工艺之外,选用高质量、低氢含量的焊接材料也是极为关键的元素。文中就测试E501T—1型药芯焊丝熔敷金属中的扩散氢含量使用不同标准、不同方法进行对比,客观地总结了它们之间的区别,以方便用户选择合适的标准和试验方法对焊接材料进行扩散氢检验。The diffusion hydrogen content in deposited metal is one of the main reasons of delayed crack.Besides the reasonable heat treatment before and after welding and the proper welding process,the high quality the welding material with low hydrogen content is also the key to prevent from cracks.The diffusion hydrogen content in E501T-1 flux-cored wire weld metal was tested with different methods according to different standards,and their difference were objectively summarized,which can help to select the proper standard and test method to measure the diffusion hydrogen of welding material.

关 键 词：熔敷金属扩散氢 水银置换法 气相色谱法 甘油置换法 

分 类 号：TG422.3[金属学及工艺—焊接]