中厚板气体保护焊不清根熔透焊技术研究

刘小龙，胡元峰，隗会军

摘要:

在常规桥梁钢结构制作焊接中,为达到设计及规范要求,在主要受力构件的焊接中确保焊缝熔透,保证焊接质量,需要对焊缝根部进行气刨清根去除有害物质。而采用此焊接工艺时焊接时间长,焊接材料消耗量大,且对作业空间的要求较大,效率也低。本文对常规的焊接清根焊工艺进行优化及改进,以满足节约焊接材料、提高工作效率及减少因焊接空间的因素导致无法满足设计及规范要求的目的。

Abstract:

In the fabrication and welding of conventional bridge steel structure, in order to meet the requirements of design and specification, ensure the penetration of weld seam and ensure the welding quality in the welding of main stressed components, it is necessary to remove harmful substances from the root of weld seam by carbon arc gouging. When using this welding process, the welding time is long, the welding material consumption is large, and the requirements for working space are large, and the efficiency is low. In this paper, the conventional welding root cleaning welding process is optimized and improved to meet the purpose of saving welding materials, improving work efficiency and reducing the factors that cannot meet the design and specification requirements due to welding space.