摘要
综述玻璃生产制备过程中的关键工艺性能的测量表征方法和适用仪器设备,关键工艺性能主要包括熔解特性、熔体特性、侵蚀特性和温黏特性等。熔解特性包括原料选择、原料间互溶反应、玻璃液澄清等;熔体特性包括表面张力、高温电阻率、羟基含量等;侵蚀特性包括玻璃液对耐火材料的侵蚀和耐火材料对玻璃液的污染两个方面;温黏特性主要包括高温黏度(熔融温度Tm、工作点Tw、液相线TL)、中温黏度(软化点Ts)、低温黏度(膨胀软化点Td、退火点Ta、转变点Tg和应变点Tst等)。上述工艺性能精确测量和表征,对制备高质量玻璃制品具有重要意义。
This article reviews the measurement and characterization methods for key process performances in glass production and applicable equipment.The key process properties include melt properties,meltliquid characteristics,erosion properties,and temperature-viscosity properties.Melting characteristics include the screening of raw materials,mutual solubility of raw materials,the clarification of the liquid glass;melt-liquid properties include surface tension,high temperature resistivity and hydroxyl content;erosion characteristics include erosion of glass materials on refractory and refractory material on glass;temperature-viscosity characteristics include high temperature viscosity(melting temperature Tm,working point Tw,liquid line TL),medium temperature viscosity(softening point Ts),low temperature viscosity(dilatometric transition point Td,annealing point Ta,transition point Tgand strain point Tst).Accurate measurement and characterization of the above process properties are important for the preparation of high quality glass products.
引文
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