重型钢轨与高锰钢辙叉的焊接Ⅱ高碳钢焊接性的研究

Welding of Railway Rail and High Manganese Steel Frog Ⅱ

摘要: 高锰钢和高碳钢的焊接由于化学、物理、力学等性能差距较大,所以焊接难度较大,论文Ⅰ和Ⅱ分别将高锰钢和高碳钢各自的焊接性进行了深入的研究。通过对焊接接头的金相组织分析、扫描电子显微(SEM)分析、能谱分析以及力学性能检验,确定出了高锰钢焊接及高碳钢焊接的方法,为高锰钢产品的焊接或高碳钢产品的焊接提供了实用可行的焊接工艺。论文Ⅱ还对这两种材料进行了直接焊接、加单侧过渡层焊接、加双介质过渡层焊接的试验研究,制定出了高锰钢与高碳钢焊接的最佳工艺规范,同时进行了力学性能的试验,为高碳钢钢轨与高锰钢辙叉的焊接提供了可靠的依据。

Abstract: Welding of high manganese steel and high carbon steel is difficult because there are so many different between these steels such as chemical,physical and mechanical properties respectively.The welding property of high manganese steel and high carbon steel was examined through the study in paper Ⅰ and paper Ⅱ.By the microstructure analysis,SEM analysis and energy spectrum analysis of welded joint,the welding method of high manganese steel and high carbon steel was determined.The method supplies particulate welding technology.It is studied in the paperⅡfor welding the two kinds of steel directly or with intermediate layer between them.Then the best welding technology was worked out.