莫来砂制备铝熔体净化用多孔喷头  

Porous Nozzles Preparation by Mullite Sands for Molten Aluminum Purification

作　　者：詹海鸿[1,2] 黄进文 谢营邦 曾建民[2] 

机构地区：[1]广西冶金研究院,南宁530023 [2]广西大学有色金属加工及其新技术教育部重点实验室,南宁530004

出　　处：《有色金属工程》2015年第3期44-47,共4页Nonferrous Metals Engineering

基　　金：广西自然科学基金资助项目(2011GXNSFF018001);广西壮族自治区八桂学者建设工程专项(桂办发〔2010〕51号);广西有色金属及特色材料加工重点实验室开放课题基金项目(GXKFJ14-04)

摘　　要：利用莫来砂制备铝熔体净化用多孔喷头,考察原料的粒度组合、粘结剂用量、造孔剂类型等对透气度的影响,建立刚球模型分析对透气度的控制,通过XRD和SEM表征样品的物相以及孔隙的分布和形貌。生产实践表明,制备的多孔喷头净化效果好、成本低,有望替代旋转喷头。The porous nozzles for molten aluminum purification are prepared with mullite sands. The effects of the particle size distribution of raw material, the dosage of the binder and the type of pore-forming agent on the porosity are investigated. The porosity control is analyzed by the establishment of the ball-model. The phase composition, pore distribution and morphology of the products are characterized by XRD and SEM. It is showed by the production practice that the prepared porous nozzle has a good purification effect and low cost, it is expected to replace rotating nozzle.

关 键 词：莫来砂 铝熔体净化 多孔喷头 透气度 

分 类 号：TF821[冶金工程—有色金属冶金] TF804