摘要
电解质初晶温度是铝电解生产过程中的一个重要参数,本文研究了直接测定铝电解质初晶温度的装置。整套装置由进样系统、高温炉、炉温控制系统、计算机测控系统组成。采用新装置可以在线实时读取数据并自动绘制温度曲线,获取结果方便准确,减少了人为误差。同时采用均匀设计法进行试验设计,考察了Na3AlF6-Al2O3-MgF2-CaF2-LiF五元体系的初晶温度,并由此建立了该体系初晶温度的数学模型。由此模型得出的预报值与实测值之间的绝对误差在±5℃以内。
Liquidus temperature is one of important parameters of production of aluminum electrolyze. In this paper, a new device for testing liquidus temperature of aluminum electrolyte is introduced, which is composed of sample carrier, high temperature stove, section for controlling temperature and computer section for measuring. With this device, an on-line determination is provided and the result can be gained conveniently and accurately. Furthermore, man-caused error can be decreased. Meanwhile, A uniform design table is adopted to test liquidus temperature of the system Na3AlF6- Al2O3-MgF2-CaF2-LiF, which results from a mathematical model. The absolute error between the predicted value gained from the model and the measured value is within ±5 °C.
出处
《冶金分析》
EI
CAS
CSCD
北大核心
2005年第3期9-12,共4页
Metallurgical Analysis
关键词
初晶温度
测量
铝电解质
装置
数学模型
<Keyword>liquidus temperature
measurement
aluminum electrolyte
device
mathematical model
