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高温荷重软化开始温度是耐火材料选材、工程设计、材料质量评价等项工作中的一项十分重要的指标,目前,国内外均采用专用仪器——高温荷软试验机测定。该仪器属大型精密仪器,价格贵,专业性强,设备利用率低。无机非金属材料热膨胀指标国内外多采用顶杆示差法或望远镜直读法,设备价格也较贵。经过调查研究,利用HRY-Ⅱ型高温荷软试验机的控制记录部分,增加特殊功能,使其除可以测定耐火材料高温荷重软化温度外,又可以测定热膨胀指标,使一机多用,提高了仪器设备利用率,并更好地为教学科研服务。现将此项工作介绍如下。
High temperature load softening start temperature is refractory material selection, engineering design, material quality evaluation of the work of a very important indicator, at present, both at home and abroad are using special equipment - high temperature load testing machine. The instrument is a large precision instruments, expensive, highly specialized, low utilization of equipment. Inorganic non-metallic materials, thermal expansion indicators at home and abroad to use multi-head differential telescope or direct reading method, the equipment prices are more expensive. After investigation, the use of HRY-Ⅱ type high temperature soft load testing machine control record part, add special features, in addition to its refractory material can be measured high temperature softening softening temperature, but also can measure the thermal expansion index, so that a multi-purpose machine and improve the instrument Equipment utilization, and better for teaching and research services. Now this work is described below.