Abstract

Results are presented for the systematization of interaction mechanisms between exogenous and endogenous inclusions in the course of steel solidification, as well as the conditions for the formation of coarse inclusions in modern metallurgical complexes. Based on published data and on the results of the author’s studies, it is shown that coarse inclusions are mainly exoendogenous by nature, whereby the conglomerates of inhomogeneous composition are formed during the entire production cycle until a crystallized casting is obtained. The presence of magnesium in nonmetallic inclusions is affected by the process of out-of-furnace treatment with a profound metal and slag deoxidation, as well as by the use of units having a magnesia lining. The erosion of the refractory lining in steel-smelting (and steel teeming) units should be considered as a significant factor in the formation of magnesium-containing inclusions.

中文翻译：

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分析外生和内生夹杂物之间的相互作用及其对粗化条件的影响

摘要

给出了在钢凝固过程中外生和内生夹杂物之间相互作用机制系统化的结果，以及现代冶金配合物中形成粗大夹杂物的条件。根据公开的数据和作者的研究结果，表明粗大的夹杂物本质上主要是外生的，由此在整个生产周期中形成不均匀组成的团块，直至获得结晶铸件。非金属夹杂物中镁的存在受到炉外处理过程中金属的深层处理和炉渣脱氧的影响，以及使用具有氧化镁衬里的设备的影响。