固体材料热物性参数智能测试系统设计与研制
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安徽理工大学机械工程学院

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TK124

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Design and Development of Intelligent Testing System ofSolid Material爷s Thermal Physical Properties
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    摘要:

    为实现厚度较薄固体板状材料热物性的准确测试。基于平行热线法基本原理,将温度测点由原
    来与热线平行布置,改为试样厚度方向布置,并考虑热穿透效应的影响,利用数值解法结合计算机编程直接测
    算材料热导率及热扩散率。研制了热物性智能测试系统,对硼硅玻璃、石棉、硅藻土耐火砖等进行热物性测试
    实验,结果表明与国家标准测试方法测试值和文献值较为吻合。考虑热穿透效应的影响,通过适当的数据处理
    手段,不用通过熔融加厚也可实现薄固体板状材料热物性的准确测试,有效拓展了热线法应用范围。

    Abstract:

    In order to realize the accuracy of the thermal property of thin sheet materials. Based on the basic
    principle of parallel hot wire technique, temperature measuring points are arranged at direction of thickness of the
    specimen instead of the original direction which is arranged parallel to hotline, and consider the impact of heat pene鄄
    tration effect. The directly measured coefficient of thermal conductivity and thermal diffusivity using numerical method
    combined with computer programming material. The intelligent test system about thermal properties is developed. The
    objects of the thermal property test experiment are glass, asbestos, diatomite refractory brick, and so on. The results
    agree well with national standard test method for test values and literature values. Considering the impact of heat pene鄄
    tration effect, it can also accurately achieve thermo鄄physical properties of thin solid plate by controlling the effective
    testing time, need not melt sample, through which the application range of the hot wire method is effectively expand鄄
    ed.

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陈清华 程 刚 庞立 董长帅 王开松.固体材料热物性参数智能测试系统设计与研制[J].宇航材料工艺,2016,46(2).

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  • 在线发布日期: 2016-11-28
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