短切PA66纤维含量和长度对硅溶胶浆料特性的影响  

Effects of Short PA66 Fiber Content and Length on Silica Sol Slurry Properties

作　　者：胡兵 胡玥 雷四雄 周坚 芦刚 HU Bing;HU Yue;LEI Sixiong;ZHOU Jian;LU Gang(AECC South Industry Co.,Ltd.,Zhuzhou 412002,China;National Defence Key Discipline Laboratory of Light Alloy Processing Science and Technology,Nangchang Hangkong University,Nanchang 330063,China)

机构地区：[1]中国航发南方工业有限公司,湖南株洲412002 [2]南昌航空大学轻合金加工科学与技术国防重点学科实验室,江西南昌330063

出　　处：《铸造技术》2020年第10期954-957,共4页Foundry Technology

摘　　要：采用了超声振动和机械搅拌方式对硅溶胶浆料中的短切PA66纤维进行分散,探究了在硅溶胶浆料中短切PA66纤维含量和长度的分散效果;测试了硅溶胶浆料性能,分析了浆料运动粘度的影响规律。结果表明,在机械搅拌和超声振动的共同作用下,短切PA66纤维在硅溶胶浆料中分散良好。随着短切PA66纤维含量在0-0.8%变化时,硅溶胶浆料的运动粘度先增后减小,0.6%时达到最大值525MPai。随着短切PA66纤维长度的增加,硅溶胶浆料运动粘度几乎呈线性关系增加。The dispersion of short PA66 fiber in silica sol slurry was studied by means of ultrasonic vibration and mechanical stirring.The kinematic viscosity of silica sol slurry was measured and the influence law of its kinematic viscosity was analyzed.The results showed that short PA66 fiber dispersed well in silica sol slurry by ultrasonic vibration and mechanical stirring.With the change of nylon fiber content from 0%to 0.8%,the kinematic viscosity of silica sol slurry first increases and then decreases,reaching the maximum value of 525 MPa•s when reaching 0.6%,with the increase of short PA66 fiber length,the kinematic viscosity of silica sol slurry increases in a nearly linear manner.

关 键 词：超声振动 硅溶胶浆 短切PA66纤维 运动粘度 

分 类 号：TG249[金属学及工艺—铸造]