电焊机2017，Vol.47Issue(11)：1-8,8.DOI:10.7512/j.issn.1001-2303.2017.11.01
埋弧焊焊缝组织与扩散氢的关系
Relationships between microstructure and diffusible hydrogen in submerged arc weld
孙咸1
作者信息
- 1. 太原理工大学焊接材料研究所,山西太原030024
- 折叠
摘要
Abstract
The relationships between the microstructure and the diffusible hydrogen in submerged arc weld were reviewed.The results show that the moisture in the silicate binder is the main source of EM12K flux diffusible hydrogen.Copper coating and surface lubricants are two main hydrogen sources in ER100-S1 wire.There will be two metallurgical reactions associated with fluoride in the arc of the submerged arc welding.The relationships between the microstructure and the diffusible hydrogen of the weld are established,their main points are the diffusion direction and aggregation site of hydrogen in the weld,affecting the occurrence of a hydrogen cracking.The socalled low hydrogenation process is a comprehensive process to make the residual hydrogen in the weld little,which is not enough to induce hydrogen cracking.The principle of "fitness for purpose" of low hydrogen process is put forward in this paper.关键词
焊缝组织/埋弧焊/扩散氢/低氢工艺Key words
weld microstructure/submerged arc welding/diffusible hydrogen/low hydrogen process分类
矿业与冶金引用本文复制引用
孙咸..埋弧焊焊缝组织与扩散氢的关系[J].电焊机,2017,47(11):1-8,8.
