理化检验-物理分册2017，Vol.53Issue(3)：221-224,4.DOI:10.11973/lhjy-wl201703018
45钢卸扣断裂原因分析
Analysis on Fracture Reasons of the 45 Steel Shackle
李秀杰 1魏丽晶1
作者信息
- 1. 中国第一重型机械集团 大连加氢反应器制造有限公司, 大连 116113
- 折叠
摘要
Abstract
In the process of hoisting 43.4 tons transition section of a container, the shackle of a lifting tool fractured.Through the chemical composition analysis, fracture morphology analysis, metallographic examination, hardness testing and so on, the fracture reasons of the shackle were analyzed.The results show that: the fracture of the shackle originated from the defects on the surface;in addition, the improper heat treatment process led to the inhomogeneous structure distribution, coarse grains, and ferrite precipitation along the boundary;these were the main reasons leading to the shackle fracture during the loading.关键词
45钢/卸扣/断裂/缺陷/热处理工艺Key words
45 steel/shackle/fracture/defect/heat treatment process分类
矿业与冶金引用本文复制引用
李秀杰,魏丽晶..45钢卸扣断裂原因分析[J].理化检验-物理分册,2017,53(3):221-224,4.
