摘要
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。
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.
作者
徐俊炜
叶魏涛
王晓娜
杨遂军
叶树亮
XU Junwei;YE Weitao;WANG Xiaona;YANG Suijun;YE Shuliang(College of Metrology Measurement and Instrument,China Jiliang University,Hangzhou 310018,China;Zhejiang Engineering Laboratory of Chemicals Safety Testing Technology and Instruments,China Jiliang University,Hangzhou 310018,China)
出处
《中国计量大学学报》
2025年第2期196-202,共7页
Journal of China University of Metrology
关键词
火炸药
5
s延滞期爆发点
进样速度
传热分析
explosives
5-second delayed explosion temperature
injection speed
heat transfer analysis
作者简介
通信作者:叶树亮(1973),男,教授,博士,主要研究方向为化工产品安全测试与仪器、工业零部件缺陷检测技术与设备、精密测量中部件信号与误差分析技术。E-mail:itmt_paper@126.com。
