›› 2016, Vol. 32 ›› Issue (3): 46-49.

• 产品工艺与质量控制(含特钢) • 上一篇    下一篇

钢包添加纳米TiN颗粒优化Q345C钢生产工艺的试验

王刚1,陈豪卫2,孙晓庆3,纪瑞东2   

  1. 1. 山东钢铁股份有限公司莱芜分公司
    2. 山东钢铁股份有限公司 莱芜分公司
    3. 孙晓庆
  • 收稿日期:2015-11-16 修回日期:2016-01-13 接受日期:1900-01-01 出版日期:2016-06-05 发布日期:2016-06-15
  • 通讯作者: 王刚 E-mail:wanggang_laigang@163.com

Experiment on production process optimization of Q345C steel by adding TiN nanoparticle in ladles

  1. 1. Laiwu Branch of Shandong Iron and Steel Co.,Ltd.,
    2.
  • Received:2015-11-16 Revised:2016-01-13 Accepted:1900-01-01 Online:2016-06-05 Published:2016-06-15

摘要: 为优化Q345C钢生产工艺,在不改变Q345B钢原有炼钢和轧钢工艺的前提下,在Q345B钢包中进行了添加纳米TiN颗粒生产Q345C钢的试验,研究了不同纳米TiN颗粒添加量对Q345钢力学性能和金相组织的影响。结果表明:在Q345B钢包添加质量分数0.05%纳米TiN颗粒生产的试验钢力学性能可以满足Q345C钢要求,提高Q345C钢轧钢生产效率20%以上。添加质量分数0.05%纳米TiN颗粒试验钢晶粒度为8~10级,晶粒有一定程度的细化,TiN颗粒在Q345钢中以纯物质状态存在,在钢中起到了一定程度的异质形核和钉扎作用。

关键词: 钢包, 纳米TiN颗粒, 力学性能, 金相组织

Abstract: In order to optimizate Q345C steel production process, the experiment has been carried out on Q345C steel by adding TiN nanoparticle in Q345B ladles without changing the process of steelmaking and rolling. The effect of diffrent TiN nanoparticle additions on mechanical properties and microstructure of Q345 steel was researched. The results showed that the mechanical properties of Q345B test steel could meet the requirements of Q345C steel with 0.05% (mass fraction) TiN nanoparticle addition, and the efficiency of Q345C steel rolling production was increased by 20% with the test process. The grain size of the test steel was refined slightly and reached to between Class 8 and Class 10. The TiN nanoparticlethe added in the Q345 steel existed in the form of pure substance in the steel and play the role of heterogeneity nucleation and nail in steel.

Key words: ladles, TiN nanoparticle, mechanical properties, microstructure

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