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介绍了在精炼过程生产高碳铬轴承钢(GCr15)时质量控制要点,通过在生产实践中不断优化造渣工艺,同时进行不同时期造渣对钢质量的影响试验研究、精炼合成渣的研究及精炼工艺的优化,得出终点w([C])大于0.20%、精炼渣碱度3.0～3.5、严格控制钢水成分、合理的过程温度控制、分段吹氩及合理时间控制、w([Al])控制在0.020%左右等措施可获得较低的全氧含量及较好的夹杂物控制水平。
This paper introduces the key points of quality control in the production of high carbon chromium bearing steel (GCr15) during the refining process. Through the continuous optimization of the slag making process in the production practice, the influence of slagging on the steel quality at different periods is studied, Refining process optimization, the final w ([C]) is greater than 0.20%, refining slag basicity of 3.0 to 3.5, strict control of molten steel composition, reasonable process temperature control, sub-paragraph argon blowing and reasonable time control, w ]) Control around 0.020% and other measures to obtain a lower total oxygen content and better control of inclusions.