文章摘要
张桂冠,赵玉刚,高跃武,张桂香.双级雾化快凝磁性磨料制备工艺系统的研制[J].机床与液压,2018,46(6):170-176
双级雾化快凝磁性磨料制备工艺系统的研制
Development of magnetic abrasive particles fabrication system using two-stage atomization and rapid solidification
  
DOI:10.3969/j.issn.1001-3881.2018.06.026
中文关键词: 雾化法  快凝法  气固两相流  磁性磨料  FLUENT  控制系统
英文关键词: Atomization method, Rapid solidification method, Gas solid two phase flow,Magnetic abrasive, FLUENT, Control system
基金项目:
作者单位E-mail
张桂冠 山东理工大学 先进制造研究院 zhaoyg9289@126.com 
赵玉刚 山东理工大学 先进制造研究院  
高跃武 山东理工大学 先进制造研究院  
张桂香 山东理工大学 先进制造研究院  
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中文摘要:
      为了获得混粉雾化快凝中的工艺参数,制备性能优良的球形磁性磨料,提高制备工艺系统的稳定性。通过对雾化快凝工艺的分析,设计了双级雾化器、设计了气力送混粉装置与控制系统、设计了雾化水冷室的结构与冷却供水系统。通过FLUENT流体分析软件,对双级雾化器在不同压力配比下的数值分析,模拟出在上级雾化压力为1.2MPa、下级雾化压力为2.5MPa时得到均匀的速度流场,保证雾化过程的持续性。在现有设计的基础上,通过实验验证了上述设备与工艺参数准确性,制备出了陶瓷硬质磨料颗粒牢固地镶嵌在铁基体表层的球形磁性磨料。
英文摘要:
      To control the process parameters using two-stage atomization and rapid solidification, and get the spherical magnetic abrasive with excellent performance, and improve the stability of the preparation processes system. Through the analysis of the atomization and rapid solidification process, it was designed which were the two-stage atomizer, the device and system of cool water supply, pneumatic conveying device and control system, atomized water-cooled chambers. The numerical analysis of the two-stage atomizer under different pressure ratios was carried out, through the FLUENT fluid analysis software. It is concluded that the uniform velocity flow field is obtained when the atomization pressure is 1.2 MPa and the lower atomization pressure is 2.5 MPa. On the basis of the existing design, the operability of the process system was verified by experiments, and the spherical abrasive particles were embedded in the spherical surface of the iron matrix.
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