清洁炼钢过程中真空脱气对非金属夹杂物的影响

IF 1.7 3区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Ironmaking & Steelmaking Pub Date : 2023-05-18 DOI:10.1080/03019233.2023.2208987

Kamrooz Riyahi Malayeri

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引用次数: 0

摘要

摘要本文的目的是研究真空脱气过程的持续时间对非金属夹杂物类型和形态的影响，这些非金属夹杂物是炼钢过程中不可避免的。在真空脱气阶段，采集了五个顶部炉渣和钢样品。所有取样场合均测量了钢水和顶渣的化学成分，并对非金属夹杂物进行了扫描电镜分析。可以看出，在真空脱气过程中，非金属夹杂物的化学成分、分散体以及形态都在不断变化。顶渣中氧化铝含量增加，而CaO含量降低。铝酸钙型夹杂物相对于尖晶石的百分比份额增加。在真空脱气开始时，非金属夹杂物中Al的wt%最高，但随着时间的推移，该wt%降低，同时出现具有较大ECD的夹杂物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Vacuum degassing impact on non-metallic inclusions during clean steelmaking

ABSTRACT The objective of this article was to study the impact of duration of vacuum degassing process on the type and morphology of non-metallic inclusions which are undesired & unavoidable by product of steelmaking process. During the vacuum degassing stage five top slag and steel samples were taken. All sample occasions measured chemical composition of the molten steel and top slag, and SEM analysis of the non-metallic inclusions. It was seen that during vacuum degassing process the chemistry, dispersions as well as the morphology of the non-metallic inclusions is constantly changing. The Alumina content of the top slag is increased while CaO content is reduced. The percentage share of calcium aluminate type of inclusions verses spinel is increased. In the beginning of the vacuum degassing wt-% of Al in non-metallic inclusions is the highest however as the time passes this wt-% is reduced at the same time inclusions with larger ECDs appear.

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来源期刊

Ironmaking & Steelmaking 工程技术-冶金工程

CiteScore

3.70

自引率

9.50%

发文量

125

审稿时长

2.9 months

期刊介绍： Ironmaking & Steelmaking: Processes, Products and Applications monitors international technological advances in the industry with a strong element of engineering and product related material. First class refereed papers from the international iron and steel community cover all stages of the process, from ironmaking and its attendant technologies, through casting and steelmaking, to rolling, forming and delivery of the product, including monitoring, quality assurance and environmental issues. The journal also carries research profiles, features on technological and industry developments and expert reviews on major conferences.