含钛焊丝钢ER70S-G夹杂物演变分析

刘善喜; 张彩军; 吕达; 马德刚; 李硕

doi:10.7513/j.issn.1004-7638.2016.05.008

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

含钛焊丝钢ER70S-G夹杂物演变分析

doi: 10.7513/j.issn.1004-7638.2016.05.008

1. 华北理工大学冶金与能源学院, 河北唐山 063009;
2. 河钢集团唐钢公司, 河北唐山 063009

详细信息

作者简介:
刘善喜(1981-),男,河北唐山人,主要从事长材品种质量控制研究,Email:95103876@qq.com

中图分类号: TF823,TF76
计量
- 文章访问数: 154
- HTML全文浏览量: 48
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2016-04-18

Evolution of Inclusions in Welding Wire Steel Containing Titanium

1. School of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, Hebei, China;
2. Tangshan Iron and Steel Co., Ltd., Tangshan 063009, Hebei, China

摘要

摘要: 为开发含钛焊丝钢ER70S-G,对其冶炼过程中夹杂的数量、尺寸和类型进行研究。研究发现:在精炼过程中,钢中当量直径夹杂物的数目呈现逐渐降低的趋势;到中间包时,当量直径(5μm)夹杂物数目已经从包样的19.78个/mm²减少到1.66个/mm²;精炼过程夹杂物的平均直径呈逐渐降低的趋势,平均直径为2.05μm;精炼初期,钢中夹杂物类型主要是MnO-SiO_2夹杂,到加钛铁前,钢中的主要夹杂物转变为CaO和MgO,从加钛铁后到中间包期间,Al₂O₃-Ti₂O₃-MgO系夹杂是钢中的主要夹杂物。
- 含钛焊丝钢 /
- 夹杂物 /
- 数量 /
- 尺寸 /
- 类型
Abstract: In order to develop welding wire steel containing titanium named ER70S-G,the quantity,size and species of inclusions in the melting process were studied.The results show that in the process of refining,the quantity of inclusions in the steel with equivalent diameter reduces gradually,and the number of inclusions per mm² with equivalent diameter of 5 μm decreases from 19.78 to 1.66 in the tundish.The average diameter of inclusions gradually decreases to 2.05 μm in the refining process.At the beginning of refining,the main inclusions in the steel are Mn O-SiO₂,and they transform into CaO and MgO before adding ferrotitanium.After adding ferrotitanium,Al₂O₃-Ti₂O₃-MgO is the main inclusions of the steel in tundish.
- welding wire steel containing titanium /
- inclusions /
- quantity /
- size /
- species