中厚板埋弧焊焊接工艺研究

Research on Submerged Arc Welding Technology of Medium and Thick Plate

本文通过分析调质钢25CrMo4的化学成分及力学性能,选择CHW-S10埋弧焊用焊丝及CHF101焊剂实现了60mm厚板试件的焊接。焊接后分析焊缝的外观、力学性能及金相组织等。试验结果表明,焊缝内部无焊接裂纹、气孔等缺陷,焊接接头性能良好,质量稳定。

This paper analyzes the chemical composition and mechanical properties of quenched and tempered steel 25CrMo4,selects CHW-S10 submerged arc welding wire and CHF101 flux to realize the welding of 60mm thick plate specimens.After welding,it analyzes the appearance,mechanical properties and metallographic structure of the weld.The test results show that there are no defects such as welding cracks and pores in the weld,and the welded joint has good performance and stable quality.