高强度锚杆钢质量缺陷分析及工艺优化  

Quality Defect Analysis and Process Optimization of High Strength Bolt Steel

作　　者：杨凯峰 贾培刚 张利武 YANG Kaifeng;JIA Peigang;ZHANG Liwu(The Steelmaking Plant Shiheng Special Steel Group Co.,Ltd.,Feicheng 271612,China)

机构地区：[1]石横特钢集团有限公司炼钢厂,山东肥城271612

出　　处：《山东冶金》2020年第2期10-13,共4页Shandong Metallurgy

摘　　要：对MG600产生的质量缺陷进行剖析,发现夹杂物超标是造成质量问题的主要原因。通过对转炉操作制度优化、精炼脱氧制度改进、采用连铸全程保护浇注以及钢包耐材材质和结晶器保护渣工艺,解决了在钢材表面裂纹、结疤、延伸率不稳定等质量缺陷,提高了锚杆MG600钢筋用坯质量,实现了稳定生产。This article deeply analyzes the quality defects occurred on the MG600 and finds that inclusions exceeding requirements of the standard are the main causes of quality problems.Through optimizing the converter operation system,improving the refining and deoxidation system,useing full protection casting,and optimizing the ladle refractory material and the protective slag for caster,the quality defects such as surface cracks,scars,and unstable elongation during the rolling of steel has been solved.The quality of MG600 steel bars for anchors has been improved.Anchor steel is stably produced.

关 键 词：高强度锚杆钢 质量缺陷 生产工艺 操作制度 性能指标 

分 类 号：TG142.13[一般工业技术—材料科学与工程]