Study on microstructure and performance of nuclear island steel lining submerged arc welding joint

HUANG Qinghui; XIANG Jiebo

doi:10.7512/j.issn.1001-2303.2020.06.20

Views : 0 下载量: 29 CSCD: 1

PDF
Export
Share
Collection
Album

Study on microstructure and performance of nuclear island steel lining submerged arc welding joint
Vol. 50, Issue 6, Pages: 105-109(2020)
DOI： 10.7512/j.issn.1001-2303.2020.06.20

扫描看全文

HUANG Qinghui, XIANG Jiebo. Study on microstructure and performance of nuclear island steel lining submerged arc welding joint. [J]. 50(6):105-109(2020)
DOI：

HUANG Qinghui, XIANG Jiebo. Study on microstructure and performance of nuclear island steel lining submerged arc welding joint. [J]. 50(6):105-109(2020) DOI： 10.7512/j.issn.1001-2303.2020.06.20.

摘要

通过对P265GH钢衬里板进行较低热输入埋弧焊(SAW)双面焊模拟预制拼接试验,重点研究了接头的化学成分、显微组织和力学性能。试验结果表明,钢衬里板较低热输入SAW双面焊工艺稳定,焊接接头性能满足规范要求,论证了钢衬里板较低热输入SAW双面焊接工艺的可行性。针对钢衬里工程预制拼接施工经验,总结了钢衬里板SAW焊接施工注意事项,为后续钢衬里拼装施工质量控制提供借鉴。

Abstract

The performance of nuclear island P265GH steel lining submerged arc welding（SAW） welding joint was studied on chemical composition,microstructure and mechanical properties. The results show that the double-sided SAW with low heat input for steel lining plate is stable,and the welded joint performance meets the specification requirements,demonstr-ating the feasibility of the double-sided SAW with low heat input. In view of the construction experience of steel lining prefabrication assembly, the matters needing attention in the SAW construction of steel lining plate are put forward, which provides a reference for the quality control of subsequent nuclear island steel lining assembly construction.