82B高线盘条拉拔表面横裂原因分析
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- 英文论文题名：Cause Analysis on Drawing Fracture for 82B Wire Rod
- 论文作者：刘伟 ; 王妍 ; 王智轶
- 英文论文作者：LIU Wei ; WANG Yan ; WANG Zhi-yi ; Technical Center of Tianjin Iron and Steel Group Company Limited ; Tianjin Aerospace Hydraumatic Equipment Co ; Ltd
- 年：2016
- 作者机构：天津钢铁集团有限公司技术中心;天津航天液压装备有限公司;
- 论文关键词：82B高线 ; 卷渣 ; 局部增碳 ; 拉拔断裂
- 英文论文关键词：82B wire rod ; powder involved ; surface carburization ; drawing crack
- 会议召开时间：2016-05-19
- 会议录名称：第十九届（2016年）全国炼钢学术会议大会报告及论文摘要集
- 语种：中文
- 分类号：TF777;TG356.46
- 学会代码：ZGJS
- 会议名称：第十九届（2016年）全国炼钢学术会议
- 会议地点：中国湖南长沙
- 主办单位：中国金属学会炼钢分会
- 学会名称：中国金属学会
- 页数：1
- 文件大小：57k
- 原文格式：O
- 会议级别：全国
摘要
82B在拉拔过程中出现表面横裂现象,通过缺陷宏观形貌观察、化学成分、金相组织分析以及扫描电镜分析,得出产生表面横裂的原因是连铸坯表面增碳,使高线近表面形成网状碳化物和块状碳化物的异常组织,拉拔变形过程中在异常组织处形成微裂纹,微裂纹扩展、合并形成宏观裂纹。连铸过程中保护渣卷入铸坯中是形成盘条表面局部增碳的重要原因。
82B wire rod occurred surface crack during drawing process,by adopting macro appearance observation,chemical composition,metallurgical analysis,scanning electron microscope and energy spectrum analysis.The reason of cracks is wire rod surface carburization,large banded distribution carbide formed in wire surface.The micro cracks occur in block carbide area in drawing process,micro cracks expand and combine to macro cracks in wire rod surface stage.The key reason of the surface carburization in steel wire rod was that the casting powder is involved into casting billet continuous casting.
82B wire rod occurred surface crack during drawing process,by adopting macro appearance observation,chemical composition,metallurgical analysis,scanning electron microscope and energy spectrum analysis.The reason of cracks is wire rod surface carburization,large banded distribution carbide formed in wire surface.The micro cracks occur in block carbide area in drawing process,micro cracks expand and combine to macro cracks in wire rod surface stage.The key reason of the surface carburization in steel wire rod was that the casting powder is involved into casting billet continuous casting.
引文