激光粒度分析仪测试钨粉粒度分布的影响因素研究  

Influencing Factors of Tungsten Powder Particle Size Distribution by Laser Particle Size Analyzer

作　　者：黄鑫[1] 李明 孙良川 安向鹏 王龙飞 刘剑钊 HUANG Xin;LI Ming;SUN Liangchuan;AN Xiangpeng;WANG Longfei;LIU Jianzhao(Advanced Technology&Materials Co.,Ltd.,Beijing 100089,China)

机构地区：[1]安泰科技股份有限公司,北京100089

出　　处：《中国钨业》2020年第4期64-69,共6页China Tungsten Industry

摘　　要：粉末冶金行业中,原料粉末粒度是检验粉末质量以及调节和控制工艺过程的重要依据,对最终产品质量有重大影响。研究通过使用Mastersizer2000型激光粒度分析仪,配制使用不同浓度的混合分散剂,对比不同的遮光度、不同的超声分散时间等条件下钨粉粒度分布的测试结果,从而找出钨粉粒度分布的最佳测试条件。结果表明,添加剂的浓度、超声分散时间和遮光度都会影响粉末粒度的测试结果,当添加剂的质量浓度为0.5%,遮光度范围为5%~6%以及超声分散时间为7 min时,钨粉粒度分布的测试结果最为理想。In the powder metallurgy industry,the particle size distribution of the raw material powder plays an important role in the subsequent production process.In order to find the best test conditions for the particle size distribution of tungsten powder,this paper uses the Mastersizer 2000 laser particle size analyzer to study the effects of different mixed dispersant concentrations,shading degree,and different ultrasonic dispersion times on the test results of the particle size distribution of tungsten powder.Results show that the concentration of dispersant,ultrasonic dispersion time and the shading degree will affect the powder particle size test results.When the mass concentration of the additive is 0.5%,the shading degree range is 5%to 6%,andthe ultrasonic dispersion timereaches 7 min,we will get the optimal the tungsten powder particle size distribution.

关 键 词：钨粉 粒度分布 添加剂 遮光度 超声分散时间 

分 类 号：TF122[冶金工程—粉末冶金]