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炼钢用煤质增碳剂的指标有哪些?

发布时间:2020-07-24 10:21:27 编辑:ag真人在线

  高指标的炼钢用煤质增碳剂的增碳效果必然要好些,那炼钢用煤质增碳剂的指标有哪些?下面请看小编的详细介绍。

煤质增碳剂

  1.硫含量

  在炼钢用煤质增碳剂中,硫元素(稳定渗碳体)起着阻止石墨化扩展的作用,炼钢用煤质增碳剂的硫含量过高时,会影响球化效果使得生产中消耗更多的球化剂,从而增加炼钢的生产成本,所以要选择含硫量低的炼钢用煤质增碳剂。

  2.固定碳、灰分、挥发分含量

  炼钢用煤质增碳剂的固定碳是根据增碳剂水分、挥发分、灰分以及硫分等成分含量计算得出的,它的值间接代表着ag真人在线的质量,灰分、挥发分含量代表着炼钢用煤质增碳剂的中杂质的含量,所以要选择固定碳含量高、灰分和挥发分含量低的炼钢用煤质增碳剂。

  3.氮含量

  氮含量也是衡量炼钢用煤质增碳剂品质好坏的一个重要指标,煤质增碳剂的氮含量较高时,增加了铁液中的氮的含量,这些过量溶解的氮会增加碳化物的稳定性、促进D型石墨的形成,从而提高钢制品的硬度,所以可以适当选择氮含量高些的炼钢用煤质增碳剂。

  综上可看出,衡量炼钢用煤质增碳剂优劣的指标用硫含量、固定碳含量、灰分含量、挥发分含量、氮含量等,其中氮、硫的指标含量影响较大。

上一篇:总结石墨化石油焦增碳剂的影响因素 下一篇: 铸铁用石墨化石油焦增碳剂的制备步骤

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