盘条表面簇状裂纹形成机理及改进措施  

Formation Mechanism and Improvement Measures of Cluster Cracks on Wire Rod Surface

作　　者：胡鹏飞 王志义 赵兴隆 回世旭 付国龙 HU Pengfei;WANG Zhiyi;ZHAO Xinglong;HUI Shixu;FU Guolong(Large Rolling Mill of HBIS Group Hansteel Company,Handan 056015,China;Technology Center of HBIS Group Hansteel Company,Handan 056015,China)

机构地区：[1]河钢集团邯钢公司大型轧钢厂,河北邯郸056015 [2]河钢集团邯钢公司技术中心,河北邯郸056015

出　　处：《热加工工艺》2022年第5期151-154,共4页Hot Working Technology

摘　　要：盘条表面簇状裂纹是大规格线材的缺陷之一。对轧制过程和成品试样中的簇状裂纹进行宏观形貌和金相分析。并对粗轧过程进行有限元分析,对粗轧轧件的应力和应变进行模拟。结合轧钢生产实际优化了粗轧孔型,最终有效减轻了线材表面簇状裂纹。Cluster crack on the surface of wire rod is one of the defects of large size wire rod.The macroscopic morphology and metallographic analysis of the cluster cracks in the rolling process and finished samples were carried out.Finite element analysis of rough rolling was carried out.The stress and strain of the rough rolling parts were simulated.Combined with the actual rolling production,the rough rolling groove shape was optimized.Finally,the cluster crack on the wire surface is effectively alleviated.

关 键 词：线材 簇状裂纹 有限元分析 孔型优化 

分 类 号：TG335.6[金属学及工艺—金属压力加工]