Research on Inclusion in 20MnSi Continuously Cast Billet
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摘要: 采用大样电解、金相观测、扫描电镜、电子探针等手段,对20MnSi连铸方坯中夹杂物的数量、粒径、分布、组成和来源进行了研究。结果表明:不合理的中间包结构以及浇铸的不稳定是造成方坯洁净度低的主要原因。研究结果为优化生产工艺,提高连铸方坯质量提供了依据。Abstract: The behavior of the inclusion in 20MnSi continuously cast billet is studied by large sample electrolysis, metallographical observation, SEM and EDS etc. The amount, size, distribution, composition and source of the inclusion are investigated. The results show that the unreasonable tundish structure and the unstable casting operation are the mainly causes for the low cleanliness of the billet. This result could be useful to optimize the production technology and improve the quality of 20MnSi continuously cast billet.
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Key words:
- 20MnSi /
- continuously cast billet /
- inclusion
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