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为将帘线钢中氧化物夹杂转变为低熔点塑性夹杂物,在实验室开展了夹杂物组成、钢液成分和顶渣组成之间的关系研究,基于研究结果提出了工业生产中实现钢中夹杂物塑性化控制的技术方案,并进行了精炼工艺技术对钢中夹杂物塑性化影响的工业试验,夹杂物成分位于低熔点液相区,实现了夹杂物塑性化控制。制丝过程将Ф1.25 mm的粗丝拉为Ф0.2 mm帘线,2 000 m试验拉拔的全部生产过程未出现断丝,且盘条中夹杂物数量也降低到3个/mm2。工业生产中制丝过程的断丝率为0.47次/t。
In order to change the inclusions of oxide inclusions in cord steel into low-melting plastic inclusions, the relationship between the composition of inclusions, the composition of molten steel and the top slag composition has been studied in the laboratory. Based on the research results, Inclusion plasticity control technology program, and carried out the refining process technology on the impact of inclusions in steel plasticity of the industrial test, inclusions in the low-melting liquid phase region, to achieve inclusions plastic control. During the spinning process, the Ф1.25 mm thick wire was pulled to Ф0.2 mm cord. No wire breakage occurred during the entire 2 000 m test drawing and the number of inclusions in the wire rod was also reduced to 3 / mm2. Industrial production in the process of silk breaking rate of 0.47 times / t.