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影响DT岩石粉状铵梯炸药爆速的因素探索 总被引:1,自引:1,他引:0
文章从DT岩石粉状铵梯炸药的原材料细度,复合油相,混药时间,投料顺序,混药药温,装药密度等方面,探讨了该炸药爆速的影响因素。 相似文献
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工业粉状炸药的新产品──膨化硝铵炸药兵总民爆局杨桐1引言膨化硝铵炸药是由工业粉状铰梯炸药、铰梯油炸药发展起来的,可称为工业粉状炸药第三代产品。铰梯炸药中由于其主要原材料硝酸铰易吸湿结块,梯恩梯是有毒有害物质。为了获得较好的爆炸性能,硝酸铵、梯恩梯均需... 相似文献
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文章介绍一种适于压气设备机械化炮孔装药作业发力较低的混合型准固态颗粒状工业炸药,其主要成分按质量包括15%-35%的常规乳休炸药用乳胶、60%-80%的多孔粒状铵油和1%-9%的两种辅助添加剂。 相似文献
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文章探讨了硝酸铵膨化后的水分含量、堆积密度、复合油相配制、混合碾磨条件及药卷装药密度等方面,影响岩石膨化硝铵炸药爆速的因素。 相似文献
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几种粉状工业炸药的热化学计算与分析 总被引:5,自引:0,他引:5
文中对国内岩石粉状工业炸药几个主要品种:岩石膨化硝铵炸药,岩石粉状乳化炸药、4号岩石铵梯油炸药、2号岩石铵梯炸药和新2号岩石铵梯油的热化学性能进行了理论计算,并对计算结果进行了分析和比较。 相似文献
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本文介绍了一种新研制的NGY液体炸药起爆弹(俗称起爆包),以及用其代替TNT/RDX药柱引爆铵油炸药(ANFO)的应用研究。 相似文献
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煤炭行业工业炸药的现状与未来 总被引:1,自引:0,他引:1
介绍了我国煤炭行业工业炸药生产、使用和技术发展现状,分析了铵梯炸药、铵沥蜡炸药、乳化炸药和水胶炸药、铵油炸药和重铵油炸药的特点和发展前景,阐述了煤炭行业工业炸药更新换代的规划和步骤。 相似文献
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On the basis of an analysis of the principle underlying the construction of standards and systems designed for reproduction
of the unit of mean power and energy of laser radiation, it is shown that these standards consist of unified subsystems that
carry the principal metrological load. By means of such a division, it is possible to realize a systems-engineering synthesis
of standards with preassigned error.
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Translated from Izmeritel'naya Tekhnika, No. 11, pp. 20–23, November, 2005. 相似文献
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介绍了用众数法评价方波幅度时的不确定度分析和评价过程;讨论了主要的不确定度来源,包括众数判别区间的影响、波形测量系统幅度测量误差的影响等等;给出了减小不确定度的主要措施,并结合一个实例,给出了方波幅度的不确定度评价结果。 相似文献
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Ways of creating unified automatized reference (calibration) and standard measurement equipment for the purpose of developing
a subsystem for the assurance of the uniformity of measurements of the energy of short-pulse laser radiation are considered.
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Translated from Izmeritel'naya Tekhnika, No. 11, pp. 24–28, November, 2005. 相似文献
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空调冷源的环境性能比较 总被引:8,自引:0,他引:8
根据国际标准化组织的生命周期评价标准,建立了空调冷源的能量生命周期清单模型,提出了环境影响评价方法.对常见的空调冷源(离心机组、螺杆机组、风冷热泵、天然气直燃机、柴油直燃机、蒸汽双效嗅化锂机组)进行了生命周期清单分析和环境影响评价,并利用权重三角形解释了权重对综合评价结果的影响.综合评价结果表明:电力结构对离心机组的环境性能影响较大,但对天然气直燃机影响较小.因此天然气直燃机和离心机组的环境性能比较应考虑电力结构的影响,在我国1999年的电力结构下,天然气直燃机的环境性能优于离心机组,在我国2010年的电力结构下,两者的环境性能相当,在美国1999年的电力结构下,天然气直燃机的环境性能比离心机组差. 相似文献
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A method of determining the stresses that arise in individual elements of a complex system and that lead to deformation of
these elements is proposed. Using the proposed method, the relationship between the topology of a surface of an object, the
deforming load, and the interference pattern is established.
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Translated from Izmeritel’naya Tekhnika, No. 3, pp. 35–38, March, 2007. 相似文献
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We propose a computational scheme of the aircraft nose landing gear and perform the analysis of weak sections in the landing-gear
lever by the finite-element method. We determine the loading modes in which the landing-gear lever is subjected to disproportional
cyclic loads, which should be taken into account in the evaluation of the service life and determination of the properties
of applied materials.
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Translated from Problemy Prochnosti, No. 4, pp. 87–93, July–August, 2008. 相似文献
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The paper addresses the use of small-sized specimens of various types, including those with deep (50%) side grooves, for the
purpose of fracture toughness prediction. The experimental data for numerous (more than 500) small-sized specimens prepared
from materials of various degrees of embrittlement are compared to the test results for full-sized specimens of C(T) type.
The concepts of Master Curve and Unified Curve are applied for the processing of experimental data. To handle the test results
for small-sized deep-grooved specimens a calculation procedure has been elaborated, which adjusts the calculation method specified
in the ASTM Standard E 1921. We provide recommendations of how to use precracked Charpy type deep-grooved (50%) specimens
for prediction of a representative temperature dependence of fracture toughness.
Translated from Problemy Prochnosti, No. 2, pp. 5–26, March–April, 2009. 相似文献
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鲍鱼壳珍珠层无机文石片的层状微结构研究 总被引:1,自引:0,他引:1
贝壳珍珠层是软体动物壳的最内层,经过若干世纪的自然进化,贝壳珍珠层形成了优良的微结构,并使贝壳具有了相当高的强度、刚度及断裂韧性.本文利用扫描电镜(SEM)观察了鲍鱼贝壳珍珠层的主要微结构特征,发现其是由层状的无机文石片和有机胶原蛋白质组成的生物陶瓷复合材料.根据发现的贝壳珍珠层层状微结构特征,建立贝壳珍珠层三维有限元模型,并用此模型分析了珍珠层的拉伸屈服极限与无机文石片拉伸屈服极限及其厚度的关系,研究表明珍珠层的屈服极限随无机文石片屈服极限的增加和无机文石片厚度的减小而增加. 相似文献