摘要
采用可变转速高温粘度计，测定了具有较好流动性的液态铝、熔融无水Ｎａ２Ｂ４Ｏ７和熔渣等冶金熔体的表观粘度进而导出了它们的本构方程。实验中如果试验结果偏离牛顿流体的误差小于试验的整体误差，则将试验得到的本构方程修正为牛顿流体的本构方程。讨论了由于温度变化和加入添加物等因素引起非牛顿流体的原因。
The rheological characteristic of metallurgical melts (Al, Na2B4O7 and slags), which are provided with a good fluidity, was investigated by means of a modified rotational viscometer with variable speed used at high temperature, and then based upon those viscosity data, some constitutive equations for the melts invesligated were established. If the deviation between the measurements of the melts and the Newtonian fluid was less than the total error of the experiment, the constitutive equation above was revised to be the Newtonian equations. The effect of temperature and additives on the nonNewtonian melts was also discussed.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1999年第2期407-412,共6页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金
关键词
冶金熔体
本构方程
非牛顿流体
泡沫渣
constitutive equationmetallurgical meltsrheological characteristicnonNewtonian fluidviscosity
