电焊机2024，Vol.54Issue(6)：74-79,6.DOI:10.7512/j.issn.1001-2303.2024.06.12
激光在钛制压力容器焊前清理上的应用
Application of Laser in Pre-welding Cleaning of Titanium Pressure Vessel
刘鸿彦 1李卫华 1孙修圣1
作者信息
- 1. 南京宝色股份公司技术中心,江苏 南京 211178
- 折叠
摘要
Abstract
Pre-weld cleaning is an essential step in the manufacturing process of titanium pressure vessels.This study ap-plied laser cleaning technology to conduct pre-weld cleaning tests on the spatial structure of the welded joints between heat exchange tubes and tube sheets in titanium pressure vessels.It compared the effects of laser cleaning with conventional methods such as grinding or acetone cleaning on the generation of welding porosity and the impact on the heat-affected zone.The results indicate that laser cleaning has a high accessibility for spatial structures,providing excellent pre-weld cleaning effects on the beveled edges of titanium test plates.Test plates cleaned with laser technology can effectively reduce the tendency to produce welding porosity defects and suppress the occurrence of"black eye"phenomena in the heat-affected zone of the welded joints.The color difference between the post-weld appearance and the untreated area is minimal,hardly affecting the appearance of the weld.The tensile strengths of the laser-cleaned samples were 498 MPa and 515 MPa,respec-tively,both exceeding the minimum tensile strength requirement of 400 MPa as stipulated by the GB/T3621-2007 stan-dard.The experimental study demonstrates that the laser cleaning process can replace traditional cleaning methods such as grinding,metal grinding head scraping,and acetone cleaning,offering an efficient and environmentally friendly new techno-logical approach for the manufacture of titanium pressure vessels.关键词
激光清理/纯钛TA2/焊前清理/压力容器Key words
laser cleaning/titanium TA2/pre-welding cleaning/pressure vessel分类
信息技术与安全科学引用本文复制引用
刘鸿彦,李卫华,孙修圣..激光在钛制压力容器焊前清理上的应用[J].电焊机,2024,54(6):74-79,6.
