explosive compaction

The technique of explosive compaction of metal powder is promising for development of advanced materials because of its qnigue capability of obtaining high temperature and high pressure in a moment.

金属粉末爆炸压制工艺具有高温、高压、瞬间作用的特点,在新型材料的开发和制备中具有显著的优势和广阔的发展前景。

Explosive compaction processing is applied to prepare Nd-Fe-B magnets with melt-spun powders.

利用爆炸压制方法制备的快淬永磁体,其磁性能、压缩强度和密度都比相同粉料制备的粘结磁体有明显提高,其中最大磁能积(BH)max提高了30%,压缩强度bσc增加了40%。

The magnetic domain structures of Nd Fe B alloys prepared by the two techniques of powder metallurgy and explosive compaction were also studied using the MFM technique.

并用这种技术观察了粉末烧结和爆炸压制两种工艺制备的 Nd- Fe- B合金的磁畴 ,给出了它们各自不同的畴结构特征 。

Removal of Overlarge Explosion Pressure for Large-Sized Flame-Proof Motor by New Material;

采用新材料解决大型隔爆型电动机爆炸压力过大的问题

The results show that both the explosion pressure and the rising rate of explosion pressure increase with the decreasing of the size of aluminum particles.

利用自制的水平管道式气体-粉尘爆炸试验装置对不同粒度铝粉的爆炸压力进行测试。

The present paper is aimed at reporting its research findings over the effect characteristic of the ignition energy on the brisance of the polynary mixed explosive gas and the effect of the energy on the explosion pressure of liquefied petro-gas through a gas explosion characteristic parameter testing system.

以密闭爆炸筒(20 L)内液化石油气(体积分数为5%)-空气混合气体为研究对象,逐步提高点火能量引爆混合气体,分析气体爆炸压力波形图的变化。

Effect of the process parameters on energy and deformation of the steel tubes during explosive compaction;

爆炸压实工艺参数对钢管能量与变形的影响

Relationships of explosive press and powder density during explosive compaction;

爆炸压实中爆轰压力与粉末致密度的关系

Study on the relationship between compact density and compaction energy of CuCr alloys by explosive compaction;

爆炸压实CuCr合金的压实能与压实密度关系的研究

Friction and heat conduction of nanometer ceramic particles in cold explosive consolidation

冷爆炸压实中纳米陶瓷粉末摩擦传热研究

In explosive consolidation of nano-powders,the duration in which the loading changed markedly on nano-particles by shock wave is far longer than the time of stress wave propagating through the character length of the particles;and the ceramic powders behave brittleness during explosive shock consolidation.

在爆炸压实过程中,纳米颗粒所受冲击载荷发生显著变化的时间远远大于应力波传过颗粒特征长度所用时间;同时,陶瓷颗粒在爆炸冲击过程中主要表现为脆性。

The explosive consolidation of metal powders has been studied in this paper from both experimental and theoretical aspects.

本文从理论和实验两方面对金属粉末的爆炸压实进行了初步的研究，包括： 1、根据理论分析和仔细的阅读有关资料，自行设计了金属粉末爆炸压实所的实验装置(由保持一定距离的两同轴PVC管组成，内管装金属粉末，外管装炸药)，对W—Ti粉末进行爆炸压实，结果表明：适当的控制炸药的爆速及厚度、粉末的初始压实密度，可得到结合良好的粉末压实体。

In this paper,based on the analysis of the characteristics of gas explosion overpressure in pipe,the ME model is used to predict the overpressure in pipe.

分析了管道中可燃气体爆炸超压的特点 ,提出了利用ME模型预测管道中气体爆炸超压的新方法 ,在能量守恒定律和爆炸能量相似律分析的基础上结合爆炸反射压力理论修正了ME模型并用于封闭管道中气体爆炸超压的预测 ,利用修正的ME模型计算了甲烷在管道中的爆炸超压 ,对计算值与实验值同ME模型、TNT当量模型的计算值以及数值模拟计算结果进行了比较分析 。

In this paper, the flame accelerating induced by vertical baffleobstacle and its effect on explosion overpressure have been experimentally studied in a selfdeveloped horizontal FAT (flame acceleration tube), using 93% methaneair mixture.

利用CH4/Air混合物(体积百分比为9 3%),在自制的卧式燃烧管中对垂直挡板障碍物加速火焰及其对爆炸超压的影响进行了实验研究,火焰阵面通过单个挡板时的高速摄影表明,在挡板障碍物诱导的流场作用下,火焰阵面发生拉伸或褶皱变形,燃烧增强。

Described are explosive fracturing, explosive cutting, well cleaning, perforating tubing, workover, casing repair, etc.

本文通过分析美国《石油文摘》、中国《石油科技期刊库》检索到的二十余篇参考文献 ,介绍石油工程领域完井与修井的爆炸技术 ,有爆炸压裂、爆炸切割、爆炸松扣、射孔弹、清洁油井、爆炸修套等技术 ,为有关研究提供参考资

The explosive fracturing was tested in house in order to solve problem of formation compact caused by smash area around the wellbore resulting from explosive fracturing.

针对爆炸压裂容易在井壁周围造成粉碎区、形成致密压实带的问题,进行了室内爆炸压裂模拟试验。

Study on the Explosion Pressure and Explosion Suppressed Technology of Polynary Explosive Mixed Gases;

多元爆炸性混合气体爆炸压力及其抑爆技术研究

Relation between explosion pressure and volume fraction of ClO_2 gas

气态ClO_2体积分数与爆炸压力的关系

A STUDY ON THE PRESSURE AND RATE OF PRESSURE RISE IN ENERGETIC MATERIAL DUSTS

含能材料粉尘爆炸压力和压力上升速率的研究

Study on Propagation Rule of Gas Explosion Under the Conditions of Barrier

障碍物影响下瓦斯爆炸压力传播规律研究

Effect of the concentration of Al(OH)_3 ultrafine powder on the pressure of methane explosion

超细Al(OH)_3粉体浓度对甲烷爆炸压力的影响

Effect of the Ignition Delay Time on the Explosion Pressure of Aluminum Dust

点火延迟时间对铝粉爆炸压力的影响研究

Determination for maximum explosion and maximum rate of pressure rise of dust cloud

GB/T16426-1996粉尘云最大爆炸压力和最大压力上升速率测定方法

Steam pressure exploded the boiler.

蒸气的压力使锅炉爆炸了。

A Research on the Pressure Fields of Unconfined Flammable Gas Cloud Explosions;

开敞空间可燃气云爆炸的压力场研究

The Measurement of Detonation Pressure in Industrial Explosives with Sulphur-cap Electrical Probe

用硫磺盖帽电探针测定工业炸药爆轰压力

Numerical simulation of characteristic points reflective pressure on the inner surface of the explosion chamber

爆炸塔内壁特征点的反射压力数值模拟

Application of PVDF Sensor in Underwater Explosive Shock Wave Measurement at Near-Field

PVDF计在水中爆炸近场压力测试中的应用

To come open or fly apart suddenly or violently, especially from internal pressure.

爆裂,炸破突然或剧烈的开裂或炸开,尤指由内部压力而引起的

To analyze the variation of the parameters of the soil, the mechanical model and numerical method of the explosion compacting the cushion and soil are established.

为了分析爆炸挤压后土体参数的变化规律，建立了爆炸挤压垫层和粘土的力学模型及数值方法。

A transient air pressure, such as the shock wave from an explosion, that is greater than the surrounding atmospheric pressure.

超压力高于周围的大气压的瞬时气压，如爆炸产生的冲击波

explosive flux compression technique

爆炸磁通量压缩技术

an explosive device; explosive gas; explosive force; explosive violence; an explosive temper.

爆炸装置；爆炸气；爆炸力；爆发性的暴力行为；容易发火的脾气。

Measurement and analysis of free-field pressure and ship hull pressure underwater explosion

水下爆炸中自由场压力和船体壁压的测量与分析