摘要
以Fe3O4为脱碳剂,研究了高能球磨工艺对高碳铬铁真空固相脱碳过程的影响,考察了烧结温度和高能球磨工艺对脱碳反应的作用。通过化学分析和红外碳硫仪检测样品中的铬含量和碳含量,采用激光粒度仪和X射线衍射分析粉末粒度和物相组成。结果表明,高能球磨能提高高碳锰铁和Fe3O4的反应速度,最佳的球磨时间为45 h;温度在1100～1350℃真空烧结时,高碳锰铁的铬含量随温度升高先上升后下降,碳含量呈先下将后上升的趋势;1200℃烧结3 h,铬铁中碳含量和铬含量分别为1.05%和43.81%。
The effects of high-energy ball milling on the solid phase decarburization of high-carbon ferrochrome were studied by using Fe3O4 as a decarbonizer,and the sintering temperature and ball mill process was considered to analyze the impact to the carbon rejection process.The content of chromium and carbon was determined by chemistry analysis and infrared carbon sulfur instrument,and the powder size and phase composition was detected by using laser particle analyzer and X-ray diffract-meter,respectively.The results show that high-energy ball milling can accelerate the reaction of high-carbon ferrochrome and Fe3O4,and the best milling time is 45 h.When sintering at 1100 ℃～1350 ℃,the content of chromium increases first and then declines following the increase of the temperature,while the content of carbon has the opposite of the law.When sintering at 1200 ℃ for 3 h,the content of chromium and carbon is 1.05% and 43.81%,respectively.
出处
《热加工工艺》
CSCD
北大核心
2012年第16期10-12,共3页
Hot Working Technology
基金
湖南省科技计划项目(2011GK3161)
湖南省教育厅科学研究项目(11B047,11C0513,11C0530)
湖南省高校科技创新团队支持计划资助湘财教指[201070]
关键词
高碳铬铁
高能球磨
脱碳
固相
high-carbon ferrochrome
high-energy nail milling
decarburization
solid phase
