制备SiCp/Al复合材料用复合粉料的颗粒包覆法混料工艺研究  

Study of the Coated Particles Mixing Process for SiCp/Al Composite

作　　者：杜延涛[1] 杜晓明[1] 刘凤国[1] 王承志[1] 

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159

出　　处：《铸造设备与工艺》2013年第2期11-13,31,共4页Foundry Equipment & Technology

基　　金：国家自然科学基金(51274143)

摘　　要：采用倾斜盘式混料机研究了颗粒包覆法制备SiCp-Al复合粉料,为超细增强颗粒铝基复合材料的制备奠定了基础。结果表明,混料机托盘倾斜角和转速的最佳组合为托盘倾斜角50°时转速为55 r/min^60 r/min,托盘倾斜角60°时转速为70 r/min^80 r/min;铝颗粒中位径为100μm时SiC最佳含量为12%,中位径为200μm时SiC最佳含量为10%。而中位径为200μm时混料效果更好,SiC颗粒能够很好地包覆在铝颗粒周围。Using the tilting disc mixing machine prepared the coated particles for SiCp - A1 composite laid the foundation for the preparation of ultra fine particle -reinforcement aluminum matrix composites.The results show that the best combination for tray angle 50°when speed for 55 r/min^60 r/min,pallet Angle 60° when speed for 70 r/min^80 r/min, When aluminum particles median diameter is 100μm,the best content of silicon carbide is 12%.when aluminum particles median diameter is 200 μm,the best content of silicon carbide is 10%.And mixing effect is better when the median diameter is 200 μm and the silicon carbide can be coted around the aluminum particles.

关 键 词：复合材料 混料 颗粒包覆 均匀性 

分 类 号：TB333[一般工业技术—材料科学与工程]