焊管2024，Vol.47Issue(3)：16-27,12.DOI:10.19291/j.cnki.1001-3938.2024.03.003
钛型气保护药芯焊丝工艺质量影响因素综述
A Review of Influencing Factors on Process Quality of Titanium Gas Shielded Flux-cored Wire
孙咸1
作者信息
- 1. 太原理工大学焊接材料研究所,太原 030024
- 折叠
摘要
Abstract
The factors affecting process quality of titanium gas shielded flux-cored wire were reviewed.The results show that reasonable selection of core additives and strict control of content of the main strengthening elements C,Mn and Si in deposited metal can improve the droplet transfer mode of welding wire and obtain satisfactory mechanical properties of the deposited metal of welding wire.In Ar+CO2 binary mixed shielding gas,with the increase of CO2 content,the droplet transfer mode changes from axial to non-axial droplet repulsive transfer,and the tensile strength of the joint has little effect,but the impact absorption energy of the deposited metal decreases obviously.When heat input is relatively high,the usability of welding wire becomes worse,and when the heat input is middle,the usability is more satisfactory;The impact of heat input on the toughness of deposited metal of welding wire may appear in two situations:sensitive to heat input and insensitive to heat input.The control principles of three factors affecting process quality of titanium gas shielded flux-cored wire have their own characteristics.关键词
钛型气保护药芯焊丝/焊缝金属韧性/焊丝成分/热输入/保护气体Key words
titanium gas shieldedtype flux-cored wire/weld metal toughness/welding wire composition/heat input/shielded gas分类
矿业与冶金引用本文复制引用
孙咸..钛型气保护药芯焊丝工艺质量影响因素综述[J].焊管,2024,47(3):16-27,12.
