钢包回转台连杆板坯缺陷分析
Defect Analysis of Steel Ladle Revolving Platform Connecting Rod Slab
摘 要
采用化学成分分析、断口分析、金相检验和力学性能检验等方法对钢包回转台连杆锻制板坯内部缺陷进行检验分析和复造验证。结果表明：钢包回转台连杆锻制板坯造成70%报废的主要原因是钢中气体含量过高,去氢不充分导致板坯产生氢脆。经过工艺改进后复造板坯,经检测均合格。
回转台
连杆
氢脆
准解理
Q345B steel
revolving platform
connecting rod
hydrogen brittleness
quasi-cleavage
Abstract
The defect in steel ladle revolving platform connecting rod slab was analyzed by means of chemical composition analysis,fracture analysis,metallographic experiment and mechanical performance test. And the steel bloom was remanufactured and tested. The results showed that,the main reason which led to 70% of the steel bloom of revolving platform connecting rod scrap was that,the gas content in the steel was high and hydrogen can not be breed out effectively,so that it resulted in the hydrogen brittleness.By means of improving the technology,the testing remanufactured plate was qualified.
中图分类号 TF341.9
所属栏目 质量控制与失效分析
基金项目
收稿日期 2007/8/20
修改稿日期
网络出版日期
作者单位点击查看
备注于春兰(1960-),女,高级工程师。
引用该论文: YU Chun-lan,CAO Gang,QIN Lu-lu,LI Wen-zhu. Defect Analysis of Steel Ladle Revolving Platform Connecting Rod Slab[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(1): 45～47
于春兰,曹刚,秦潞潞,李文竹. 钢包回转台连杆板坯缺陷分析[J]. 理化检验－物理分册, 2009, 45(1): 45～47
被引情况:
【1】李耀辉,于春兰,赵磊,秦璐璐,李莹, "减速机主轴曲柄断裂失效分析",理化检验－物理分册 50, 914-918(2014)
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参考文献
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【2】东北重机学院,第一重型机械厂,第一机械工业部,等. 大锻件热处理[M].北京：机械工业出版社,1974:51-55．
【3】哈宽富.金属力学性质的微观理论[M].北京:科学出版社 ,1983: 648-658．
【2】东北重机学院,第一重型机械厂,第一机械工业部,等. 大锻件热处理[M].北京：机械工业出版社,1974:51-55．
【3】哈宽富.金属力学性质的微观理论[M].北京:科学出版社 ,1983: 648-658．
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