Effect of MgO Critical Particle Size on Properties of MgO-C Continuous Temperature-Measuring Sensor for Liquid Steel

被引：4
|
作者：
Zhao Shu-mao [1 ]
Mei Guo-hui [1 ]
Xie Zhi [1 ]
机构：
[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110004, Liaoning, Peoples R China
来源：
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2011年 / 18卷 / 12期
关键词：
MgO; carbon; microstructure; sensors; lifetime; particle size; COMPOSITE;
D O I：
10.1016/S1006-706X(12)60003-X
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
MgO-C continuous temperature-measuring sensors for liquid steel were made of fused magnesia with different critical particle sizes from 0.5 to 2.0 mm, thus the effects what magnesia's particle size affect sensors' properties and lifetime were studied. The result shows that the MgO-C continuous temperature-measuring sensor has good aggression resistance to basic tundish powders and meets the requirement for response time of temperature measuring practice in tundish. The sensor's service life, which is affected by multi-properties of material and operating environment, reached its maximum when the critical particle size of magnesia was 1.0 mm. The average lifetime of sensors was 43 or 40 h when served for casting SPHC or Q195 steel.
引用
收藏
页码：12 / 21
页数：10
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