帘线钢盘条机械除鳞过程中的脆断分析  

Fracture Analysis of Cord Wire Steel during the Mechanical Descaling

作　　者：王猛 王立峰 王丽萍 王勇 李舒笳 周玉丽 

机构地区：[1]技术研究院

出　　处：《首钢科技》2011年第2期10-13,46,共5页Shougang Science and Technology

摘　　要：通过对帘线钢盘条SWRH82A机械除鳞过程中的断口进行分析，结合模拟试验和对应表面组织的观察，分析帘线钢盘条脆断原因。结果表明，盘条在运输和打捆过程中由于机械外力作用造成局部表面硬化，形成接近于马氏体硬度的白亮带所诱发的裂纹是造成盘条在机械除鳞过程中发生脆断的主要原因。Through the fracture analysis of Cord Wire Steel 82A during the mechanical descaling and researching on corresponding surface microstructure in the simulation test of mechanical grinding, the reason of fracture was studied. The result shows that face-harden of wire in the bundling and conveying leads to the formation of bright band which microhardeness was similar to the martensite, inducing crack which caused the transverse crack of wire during the mechanical descaling.

关 键 词：帘线钢 脆断 表面硬化 白亮带 

分 类 号：TG356.22[金属学及工艺—金属压力加工]