摘要
对首钢65Mn弹簧盘条在拉拔过程中的断裂问题进行了探讨,通过观察分析不同形态的断口发现.杯锥状断裂、齐平状断裂和表面横裂是盘条在拉拔过程巾断裂的主要形式,盘条中的中心残余缩孔、大型夹杂及表面缺陷等是导致65Mn弹簧盘条断裂的主要因素。
The fracture problems of Shougang 65Mn. Wire Rod in drawing is discussed in this paper.Through observing and analyzing various fractures by means of microscope,SEM etc,we find that cup-and-cone fracture,brittle rupture and surface cross crack are major forms of wire rod fracture in drawing,and the main causes which lead to fracture are central residual porosity ,lagersized in-clusions and surface defects in wire rod.
出处
《首钢科技》
2005年第4期26-30,共5页
Shougang Science and Technology