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目的:研究进样速度对火炸药5 s延滞期爆发点测试结果的影响。方法:基于传热学及反应动力学理论建立数学模型，定性分析进样速度对5 s延滞期爆发点的影响规律。使用黑火药样品进行爆发点实验，测定不同温度、不同进样速度下的5 s爆发点值。结果:当进样速度为31.7 mm/s时，黑火药5 s爆发点为301℃;进样速度高于110 mm/s时，黑火药5 s爆发点为305℃,相较于低进样速度时增加4℃。结论:进样速度影响火炸药5 s爆发点的测试结果，5 s爆发点随着进样速度的增加而升高，但当进样速度达到边界条件110 mm/s后，增加幅度逐步减小并趋于稳定。
Abstract：Aims: This paper aims to analyze the influence of injection speed on the 5-second delayed delayed explosion temperature test results of propellants and explosives. Methods: A theoretical model was established based on heat transfer and reaction kinetics principles to qualitatively analyze the influence of injection speed on the 5-second delayed explosion temperature. Black powder samples were tested under varying temperatures and injection speeds to obtain their 5-second delayed explosion temperature values. Results: When the injection speed was 31.7 mm/s, the 5-second delayeded explosion temperature of black powder was determined to be 301 ℃. At higher injection speeds exceeding 110 mm/s, the corresponding value increased to 305 ℃, demonstrating a 4 ℃ difference compared with low-speed conditions. Conclusions: Injection speed exhibits significant impact on the 5-second delayeded explosion temperature measurement of propellants and explosives. The 5-second delayeded explosion temperature shows an ascending trend with increasing injection speeds. However, this growth rate substantially decreases and eventually stabilizes when reaching the threshold speed of 110 mm/s.
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基本信息:
DOI：
中图分类号:TQ560.1
引用信息:
[1]徐俊炜,叶魏涛,王晓娜等.进样速度对5 s延滞期爆发点影响实验研究[J].中国计量大学学报,2025,36(02):196-202.
基金信息: