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针对莱钢转炉生产的优质碳素和合金结构钢的主要评价指标顶锻和低倍合格率较低的现状,结合产品检验和生产实践,设计了专门的试验对引发产品质量缺陷的主要表现形式顶锻裂纹、低倍裂纹和夹渣等进行了探索与研究,并且利用低倍组织分析、电化学萃取分析等手段,对铸坯和产品的质量缺陷进行了客观的分析,在分析与研究的基础上,结合生产工艺执行,从冶炼、连铸、产品抽查与检验等各方面采取了针对工艺改进措施,有效的提升了转炉优质钢的产品质量。
According to the status quo of the main evaluation indexes of high quality carbon and alloy structural steel produced by Laiwu Steel converter, the qualified rate of forging and low pass is low, and combined with the product inspection and production practice, a special test is designed to show the main manifestations of product quality defects Forging cracks, low-frequency cracks and slag, etc. were explored and studied, and the use of low magnification tissue analysis, electrochemical extraction and other means of analysis of slab and product quality defects were objectively analyzed in the analysis and research Based on the combination of production process implementation, from smelting, continuous casting, product sampling and testing, and other aspects taken for the improvement measures to effectively enhance the quality of converter steel products.