摘要
以氧化铁为脱碳剂,研究了加热方式、高能球磨对高碳锰铁固相脱碳过程的影响。通过化学分析和红外碳硫仪检测样品中的锰含量和碳含量,采用扫描电镜观察了材料的显微组织。结果表明,真空电阻炉加热条件下,高能球磨30h的高碳锰铁混合料,在1000℃保温2h脱碳率达到75%以上,锰挥发率低于15%。采用微波烧结能在较低温度发生反应,且反应速率快,脱碳效率高,锰的挥发率少。球磨30h的高碳锰铁和氧化铁混合料在1000℃保温10min,脱碳率达到80%以上,锰挥发率低于10%。
Taking iron oxide as decarbonization agent, the heating mode and high energy ball mill on solid phase decarburization process of high carbon ferromanganese were studied. The chromium content and carbon content in the samples were detected by chemical analysis and infrared carbon sulfur analyzer. The microstrueture of the materials was observed by using scanning electron microscope. The results show that under the condition of high-energy ball milling for 30h and vacuum resistance furnace heating at 1000 ℃ for 1 h, the decarburization rate of high carbon ferromanganese mixture is above 75%, and manganese volatilization rate is lower than 15%. By microwave, sintering can react at lower temperatures, the faster reaction rate, higher efficiency decarburizations and less volatilization of manganese rate can be obtained. When high carbon ferromanganese and iron oxide mixture nnder 30h ball milling and heating at 1000 ℃ for 10min, the decarburization rate is above 80% and the manganese volatilization rate is lower than 10%.
出处
《热加工工艺》
CSCD
北大核心
2014年第10期97-100,共4页
Hot Working Technology
基金
湖南省科技计划项目(2011GK3161
2013GK3092)
江苏大学高级人才科研启动基金(11JDG126)
关键词
高碳锰铁
固相脱碳
微波烧结
高能球磨
high-carbon ferrochrome
solid phase decarburization
microwave sintering
high-energy ball milling
