通N_2对炼镁还原罐内料球填充层传热的影响  

Influence of inletting N_2 on heat transfer of ball material filled layer of the reduction tank for smelting magnesium

作　　者：曹韩学[1,2] 姜浩[1] 贾从波 唐浩兴 

机构地区：[1]重庆大学材料科学与工程学院,重庆400045 [2]重庆大学国家镁合金材料工程技术研究中心,重庆400044

出　　处：《轻金属》2015年第9期43-46,51,共5页Light Metals

基　　金：广东省省部产学研结合重大专项项目-汽车轻量化构件精益铸造关键技术及产业化集群示范(2012A090300016)

摘　　要：提出一种往炼镁还原罐内通入N2强化传热的方法。首先通过自制实验设备研究真空、罐内封闭N2和不断通入高温流动N2三种条件下,料球填充层内偏离加热板(罐壁)0、60、120、180和240 mm处温升行为,验证提出方法的有效性;随后结合X射线衍射仪分析试样和热分析仪研究N2对料球成分、还原反应及其产物的影响,验证提出方法的可行性。In this paper, a method of heat transfer enhancement by inletting N2 to the reduction tank for magnesium smelting is introduced. First of all, u- sing self - made experimental equipment to study the temperature rising behavior of the place in the ball material filled layer deviating the heating plate 0, 60,120,180 and 240mm verify the effective of our deve｜oped method under the three conditions of vacuum, filling with N2 and fiUing with high tempera- ture flowing N2. Then, combining with X - ray diffractometer and thermal analyzer to analysis the influence of the nitrogen on the material composition of the ball, the reduction reaction and its product, the results verify the feasibility of the proposed method.

关 键 词：硅热法 氮气 料球填充层 强化传热 

分 类 号：TF822[冶金工程—有色金属冶金]