Q690E高强钢层状撕裂原因分析及对策  

Analysis of Reasons and Countermeasures for Laminar Tearing of Q690E High-strength Steel

作　　者：刘海良 Liu Hailiang(Shanxi Coking Coal Huozhou Coal Electricity Group Mugua Mine,Lvliang,China)

机构地区：[1]山西焦煤霍州煤电木瓜煤矿,山西吕梁

出　　处：《科学技术创新》2025年第9期169-172,共4页Scientific and Technological Innovation

摘　　要：本文针对某结构件出现的Q690E高强钢的层状撕裂问题进行了研究,从钢材质量、焊接接头形式和焊接工艺三个方面分析裂纹产生的根源。通过优化焊接接头设计和焊接工艺,实践证明该处理方案合理有效,为同类问题的解决提供了参考。In this paper,the laminar tearing problem of Q690E high-strength steel in a certain structural component is studied,and the root causes of cracks are analyzed from three aspects:the quality of steel,the form of welded joints,and the welding process.By optimizing the design of welded joints and welding process,practice has proved that the treatment program is reasonable and effective,providing a reference for the solution of similar problems.

关 键 词：低碳调质钢 层状撕裂 Z向性能 

分 类 号：TU391[建筑科学—结构工程]