【摘 要】
：
为了给汽车工业提供优质的45MnS钢,稳定可控的调硫技术是非常必要的.针对Y45MnS钢熔炼过程中经常出现的硫超标和污染问题,开展了喂硫磺芯线的研制及其熔炼加硫工艺研究.本工艺把纯硫磺加工成芯线,用喂线机把硫磺芯线快速穿破渣层,送到钢包底部,硫磺芯线在钢包下部熔化而被钢液充分吸收.喂线速度是影响硫吸收率的主要参数,从理论上探讨了为了提高含硫率而采用的适宜喂线速度.结果表明：用喂线法对含硫钢强化增硫
【机 构】
：
重庆文理学院材料交叉学科研究中心,重庆402160;重庆市高校微纳米材料工程与技术重点实验室,重庆402160
论文部分内容阅读
为了给汽车工业提供优质的45MnS钢,稳定可控的调硫技术是非常必要的.针对Y45MnS钢熔炼过程中经常出现的硫超标和污染问题,开展了喂硫磺芯线的研制及其熔炼加硫工艺研究.本工艺把纯硫磺加工成芯线,用喂线机把硫磺芯线快速穿破渣层,送到钢包底部,硫磺芯线在钢包下部熔化而被钢液充分吸收.喂线速度是影响硫吸收率的主要参数,从理论上探讨了为了提高含硫率而采用的适宜喂线速度.结果表明：用喂线法对含硫钢强化增硫和微调增硫方法可行;硫吸收率平均达85％,硫量控制准确,在0.01％以内;Y45MnS硫成分控制稳定,较直接加入法稳定性大大提高,解决了硫含量范围窄的硫微调控制难的问题.该工艺能提高硫的吸收率,而且稳定,工艺简便,处理时间短,仅2 min左右,大大减少微调增硫工艺时间,降低了电耗和材料消耗,降低污染,改善了现场环境。
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