超声波和电脉冲对钢液凝固组织的影响

权淑丽; 郭昭桥; 陶力农

doi:10.7513/j.issn.1004-7638.2014.01.019

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超声波和电脉冲对钢液凝固组织的影响

doi: 10.7513/j.issn.1004-7638.2014.01.019

1. 杭州钢铁集团公司技术中心, 浙江杭州 310022;
2. 杭钢集团紫鼎工贸公司, 浙江杭州 310022

详细信息

作者简介:
权淑丽(1979-),女,河南漯河人,硕士,工程师,主要从事炼钢及钢铁材料的疲劳断裂研究

中图分类号: TF777
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- 文章访问数: 14
- HTML全文浏览量: 4
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2013-07-17

Laboratory Study on the Effect of Ultrasonic and Electric Impulse Discharging on Solidification Structures of Liquid Steel

1. Technology Center, Hangzhou Iron and Steel Group Co., Hangzhou 310022, Zhejiang, China;
2. Ziding Industrial & trading, Hangzhou Iron and Steel Group Co, Hangzhou 310022, Zhejiang, China

摘要

摘要: 采用自行设计的超声波设备开展了超声波处理45钢凝固组织试验;采用脉冲磁场装置开展了60Si2CrVA弹簧钢浇铸前和浇铸后40 s施加电脉冲试验。试验结果表明,超声波处理显著提高45钢铸锭的力学性能;60Si2CrVA弹簧钢浇铸前施加脉冲磁场,铸锭中等轴晶比例由未施加脉冲磁场的49%提高至施加5 Hz/200 V脉冲磁场的74%,等轴晶尺寸由1 mm细化至0.4 mm;60Si2CrVA弹簧钢浇注后40 s施加脉冲磁场,随脉冲磁场作用时间的增加,等轴晶比例升高,等轴晶尺寸减小。
- 超声波 /
- 电脉冲 /
- 铸锭 /
- 等轴晶 /
- 力学性能
Abstract: Ultrasonic sent from self -designed ultrasonic device was used to influence solidification structures of steel C45 in experiments,and electric impulse generated from pulsed magnetic field device was employed to influence spring steel 60Si2CrVA before casting and 40 s after casting respectively.The results show that the mechanical properties of steel C45 are noticeably improved after ultrasonic treatment.For spring steel 60Si2CrVA influenced with pulsed magnetic field of 5 Hz/200 V before casting,isometric crystal ratio of the cast ingot is greatly increased to 74% from 49% when untreated by the magnetic field, and isometric crystal sizes are significantly reduced to 0.4 mm from 1 mm.For spring steel 60Si2CrVA influenced 40 s after casting,isometric crystal ratio is increased,and isometric crystal sizes are reduced with the increase of influence time.
- ultrasonic /
- electric impulse /
- cast ingot /
- isometric crystal /
- mechanical property