Peculiarities of application of natural and man-caused materials for steel alloying and modifying

O. I. Nokhrina, I. D. Rozhikhina, V. I. Dmitrienko, I. E. Proshunin, M. Golodova
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引用次数: 2

Abstract

Considerable reserves of improvement of steel quality and reduction of costs of its production are concealed in a possibility of active and purposeful formation their structure and the properties by introduction into the melt modifiers, alloying and microalloying additives. Due to the task of decreasing costs, studies on alloying and modifying of metal by natural and man-caused materials are very actual. Thermodynamic regularities of steel alloying and modifying processes by natural and man-caused materials, including manganese ores of various structures, BOF vanadium slag, barium- strontium modifier, obtained from the complex ores containing barium and strontium considered. Possibilities of wide application of various structure manganese ores for steel alloying by manganese without use of standard manganese alloys as well as vanadium slag for microalloying by vanadium demonstrated. Metallurgical properties barium-strontium natural modifier obtained and the possible mechanism of the modifying impact of barium and strontium on quality of metal studied. It was determined, that the effect of modifying by barium can revealed in steels, deoxidized only by silicon, and for modifying by strontium or joint modifying by barium and strontium it is necessary to apply aluminum as deoxidizing agent. Industrial testing of the above-stated materials showed reliability of studies, accomplished at thermodynamic modeling and laboratory studies of calculations and conclusions. Recommendations on optimization of technologies of steel alloying and modifying made. It was proved that use of the materials of the study allows to improve technical and economic indices of the process of production of steels and to increase considerably quality of final steel products. Conclusions on significant expansion of natural and man-caused materials prospects worded.
天然材料和人造材料在钢合金化和改性中的应用特点
通过在熔体改性剂、合金化和微合金化添加剂中引入主动和有目的地形成钢的结构和性能的可能性,隐藏了大量改善钢质量和降低其生产成本的储备。由于降低成本的任务,利用天然材料和人造材料对金属进行合金化和改性的研究是非常现实的。研究了从含钡、锶的复杂矿石中获得的各种结构锰矿石、转炉钒渣、钡锶改性剂等天然和人为材料合金化和改性过程的热力学规律。论证了各种结构锰矿石在不使用标准锰合金的情况下用于钢的锰合金化以及钒渣用于钒微合金化的可能性。获得了钡锶天然改性剂的冶金性能,并对钡锶对金属质量的改性影响可能的机理进行了研究。结果表明,钡的改性作用只能在硅还原的钢中表现出来,而锶的改性或钡锶的联合改性必须用铝作为脱氧剂。上述材料的工业测试表明了研究的可靠性,完成了热力学建模和实验室研究的计算和结论。提出了优化合金化和改性工艺的建议。实践证明,使用本研究的材料可以提高钢生产过程的技术经济指标,并大大提高最终钢产品的质量。结论:自然和人为材料的前景显著扩大。
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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