为了解不同壳体材料熔铸装药过程的传热情况及探针提升速度变化趋势,对壳体装药热探针护理过程中传热学进行分析.以钛合金、铬镍钢及铝合金为例,通过单层圆筒壁常规稳态导热微分方程进行传热学分析,推导出探针提升速率影响关系方程,并分别对钛合金、铝合金、铬镍钢3种壳体材料传热学进行比较研究.结果表明:在壳体材料不同,其余相同的条件下,探针提升速率随壳体导热系数的增加而降低,且呈1阶指数衰减变化,当壳体导热系数大于75 W/(m·K)时,曲线基本趋于水平.同一材料壳体,探针提升速率随环境温度的增加而降低且呈斜率为负值的直线变化关系,不同材料壳体,当环境温度较低时,探针提升速率相差较大,当环境温度达到某一最大值时,探针提升速率相同.%In order to research the diathermancy of different material shell during casting explosive charge process and the change trend of the probe ascending velocity rate, analyze diathermancy in shell charging heat probe maintenance process. Taking titanium alloy, nickel chromium steel, and aluminum alloy as example, by single layer cylinder wall regular steady state diathermancy differential equation, carry out diathermancy analysis of casting explosive charge probe maintenance process, derivate probe ascending velocity rate influence relation equation, compare and research on diathermancy titanium alloy, nickel chromium steel, and aluminum alloy. The research results show that: under same conditions, by using different shell material, probe ascending velocity rate is reduced when shell heat conductivity increases, and was first order exponential decay. When the shell thermal conductivity was greater than 75 W/(m·K), the curve was basic tend parallel. That the same material shell, the rate of heat probe minished with increasing of environment temperature, and was liner changing of negative slop. When the shell material is different, in conditions of environment temperature is low, the rate of heat probe ascended was six to one, then it was high, the rate was the same.
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