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一、前言随着电渣冶金技术的发展,研究电渣重熔过程中传热机理是非常重要的。为测试重熔渣料,我们研制了仿日HC-60型高温导热系数测定仪。测试了在600℃和1000℃时常用二元渣系和四元渣系的导热系数。本仪器与日本HC-60型高温导热仪相比,测试结果的误差不超过5.5％。二、原理非稳态热线法是在被测物质中放置一根耐高温的细金属丝(称为热线),通以恒定的电流加热,根据热线在不同时刻的温度变化来确定被测物质导热系数的方法。热线温度上升的速度受被测物质的导热系数的影
I. Introduction With the development of electroslag metallurgy technology, it is very important to study the heat transfer mechanism in ESR process. In order to test the remelting slag, we developed the imitation Japan HC-60 high temperature thermal conductivity detector. The thermal conductivities of binary and quaternary slag systems commonly used at 600 ℃ and 1000 ℃ were tested. The instrument compared with Japan’s HC-60-type high-temperature thermal conductivity test results, the error does not exceed 5.5%. Second, the principle of non-steady-state hot-wire method is placed in the test substance of a high-temperature fine metal wire (called the hot wire), through a constant current heating, according to hot wire at different times of the temperature change to determine the thermal conductivity of the measured substance Coefficient method. Hotline temperature rise speed by the measured thermal conductivity of the shadow