论文部分内容阅读
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%。
Using Fe3O4 as decarburizing agent, the effect of high-energy ball milling on the vacuum solid-phase decarburization of high-carbon ferrochromium was studied. The effects of sintering temperature and high-energy ball milling on decarburization were investigated. Through chemical analysis and infrared carbon and sulfur analyzer detection of chromium and carbon content in the sample, particle size and phase composition were analyzed by laser particle sizer and X-ray diffraction. The results show that high-energy ball milling can improve the reaction rate of high-carbon ferromanganese and Fe3O4, and the optimum milling time is 45 h. When the temperature is 1100 ~ 1350 ℃, the chromium content of high-carbon ferromanganese first increases with the increase of temperature The content of carbon and chromium in ferrochrome was 1.05% and 43.81% respectively at 1200 ℃ for 3 h.