冷镦钢钢丝镦头成型开裂原因分析  

Analyses of Causes of Heading Cracking of Cold Heading Wire

作　　者：邱容容 Qiu Rongrong(Fujian Sansteel Minguang Co.,Ltd.Sanming 365000,Fujian)

机构地区：[1]福建三钢闽光股份有限责任公司技术中心,福建三明365000

出　　处：《福建冶金》2022年第6期33-35,7,共4页Fujian Metallurgy

摘　　要：冷镦钢钢丝在加工过程中出现镦头开裂是下游客户反馈的主要质量问题之一,文章通过金相分析、电镜能谱分析等理化检测手段,分析了冷镦钢钢丝加工后出现镦头开裂的主要原因,结果表明:其主要原因有坯料缺陷(卷渣、坯料表面缺陷)、轧制缺陷、用户加工缺陷(拉拔工艺不当、热处理工艺不当)等三大类型。Heading cracking during processing is one of the major quality issues of cold heading steel wire reported by customers.This paper analyzes the main causes of heading cracking of cold heading steel wire by means of metallographic analysis,SEM and energy spectrum analysis.The results showed that:The main reasons are billet defects(slagging,billet surface defects),rolling defects,user processing defects(improper drawing,improper heat treatment),etc.

关 键 词：冷镦钢 拉拔 镦头成型 开裂 夹渣 

分 类 号：TG115[金属学及工艺—物理冶金]