球墨铸铁喷吹球化工艺及优化实验研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金青年项目(51602316)


Experimental research on spray-spheroidization process of ductile iron and its optimization
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为进一步优化喷吹球化工艺,提高镁的吸收率,对球墨铸铁管的应用效果以及铁液温度、球化深度与镁球化剂吸收率之间的关系进行了研究。结果表明:球化后的残余硫含量能够稳定降低至0.01%(质量分数)以下,且残余镁含量大于0.05%(质量分数)不会发生球化衰退现象;球化时铁液温度越低、球化深度越大,铁液对镁的吸收率越大;当喷吹球化铁液温度为1 460 ℃、球化深度为1.32 m时,可保证镁吸收率在50%以上。喷吹球化工艺兼顾了设备简单可靠、易维护,球化剂量调整灵活等特点,将其应用于快节奏、大批量的球墨铸铁管生产领域,降低了喷吹球化工艺成本,可为喷吹球化工艺在球墨铸铁行业的推广应用提供一定的参考。

    Abstract:

    In order to further optimize the spray spheroidization process and improve the availability of Mg,the application effect of ductile iron pile and the relationship between molten iron temperature,spheroidization depth and the availability of Mg spheroidizing agent were studied.The results show that the residual S content after spheroidization can be steadily reduced to less than 0.01%(mass fraction),and spheroidization degeneration doesn′t occur when the residual Mg content is greater than 0.05%(mass fraction).During spheroidization,the lower the temperature of molten iron and the greater the spheroidization depth are,the greater the availability of Mg by molten iron is.When the molten iron temperature is 1 460 ℃ and spheroidization depth is 1.32 m,the Mg availability can be over 50%.The spray spheroidization process takes into account the characteristics of simple and reliable equipment,easy maintenance and flexible adjustment of spheroidization dose.It is applied to the production field of fast-paced and large-scale ductile iron pipes to reduce the cost of spray spheroidization process,which provides a certain reference for the popularization and application of spray spheroidization process in the ductile iron industry.

    参考文献
    相似文献
    引证文献
引用本文

未永斌,靳 杰,刘俊锋,耿国锋.球墨铸铁喷吹球化工艺及优化实验研究[J].河北工业科技,2022,39(4):261-267

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-03-15
  • 最后修改日期:2022-05-11
  • 录用日期:
  • 在线发布日期: 2022-08-01
  • 出版日期: