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为研究不同碱度渣对汽车用弹簧钢中夹杂物的影响,湘钢从钢中夹杂物的组成、形态与分布着手,在LF精炼过程中设计了两种不同碱度的渣,分析了两种工艺下钢中全氧含量、夹杂物尺寸与成份的差异。结果表明:碱度1(R为1.6)的精炼渣不利于大颗粒夹杂物的控制和消除,全氧含量高,钢中Als含量低;碱度2(R为2.0)的精炼渣使夹杂物尺寸更小、分布均匀,全氧含量低,钢中Als含量高。
In order to study the influence of different alkalinity slag on inclusions in automotive spring steel, Xiangtan Iron and Steel from the composition, morphology and distribution of inclusions in the steel, LF slag refining process designed two different alkalinity slag, analyzed two Variety of total oxygen content, inclusions size and composition under different kinds of techniques. The results show that the refining slag with basicity 1 (R = 1.6) is not conducive to the control and elimination of large-size inclusions. The total oxygen content is high and the Als content in the steel is low. The refining slag with basicity 2 (R = 2.0) Smaller size, uniform distribution, low total oxygen content, high Als content in steel.