SWRCH22A线材拉拔断裂原因分析

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英文篇名：Analysis of the Cause of Drawing Fracture of Wire Rod SWRCH22A 作者：农之江 ; 吴德兴 英文作者：NONG Zhi-jiang;WU De-xing;Baowu Group Guangdong Shaoguan Iron & Steel Co.,Ltd.; 关键词：SWRCH22A线材 ; 断裂 ; 非金属夹杂 ; 大尺寸夹杂 ; 心部缺陷 英文关键词：wire rod SWRCH22A;;fracture;;non-metal inclusion;;large size inclusion;;core defect 中文刊名：NFGT 英文刊名：Southern Metals 机构：宝武集团广东韶关钢铁有限公司; 出版日期：2018-10-15 出版单位：南方金属 年：2018 期：No.224 语种：中文; 页：NFGT201805002 页数：4 CN：05 ISSN：44-1521/TF 分类号：8-11

摘要

针对SWRCH22A线材拉拔过程出现断裂的质量问题,对拉拔钢丝断口样进行宏观分析、金相检测、电镜能谱检测分析.断口为典型笔尖断口,笔尖状断口及漏斗状断口心部端头存在大尺寸夹杂,其成分中含耐火材料成分,拉拔钢丝心部存在大尺寸夹杂缺陷导致拉拔断裂.
        Macro analysis,metallographic examination and electron microscopy analysis are carried out on the fracture samples of drawing steel wire SWRCH22 A for the quality problem of fractures in drawing process. Through the detection and analysis on fractured specimens,the fracture is identified as typical tip fracture. Large size inclusions exist in the penpoint fracture and funnel fracture of core end,and contain refractories in its composition. The presence of large size non-metal inclusions in its core leads to fracture during drawing.

引文

[1]龚佳仙,韩荣东,许竹桃.硬线盘条笔尖状断口断裂分析[J].武钢技术,2005,43(3):1-4.