新型夜瞄复合荧光材料在步兵轻武器中的应用研究

采用自制的复合荧光粉体和化学载体成分,研制出一种步兵轻武器新型夜瞄复合荧光材料.试验研究和实际使用结果表明,研制的新材料发光时间长、亮度高,具有良好的耐温、耐腐蚀性能,不受轻武器的日常使用和维护影响,可满足步兵轻武器夜间瞄准需求.     

我国新一代轻武器跻身世界前列

本刊讯我国研制的新一代轻武器,经中央军委批准首先装备驻香港部队,并将陆续装备全军。以自动步枪和班用机枪为主的我军新一代轻武器,与目前国内外同类产品相比,具有体积最小、重量最轻、直射距离最远和威力最大等特点,处于世界先进水平。我国新一代轻武器包括：新型枪族、新型狙击步枪、重机枪、新型榴弹发射器及弹等。被誉为中华枪族的我军新一代轻武器,除采用机械瞄准具外,还装备了白光瞄准镜,微光夜瞄装置,能满足全天候作战需要;枪族配备了具有刺、砍、锯、剪、锉等功能的多用途刺刀,有利于提高士兵作战和野外生存能力;步枪…     

军事演习粗解

震惊全球的海湾战争,步兵披挂上阵只“表演”了4天,战争结束了。在波黑战争和科索沃战争中,步兵干脆就没有捞到表现的机会。一时间,“步兵及其使用的轻武器在高技术战争中已无用武之地”的论调颇有市场。但随着人们对高技术战争认识的深化,各国越来越认识到步兵及其使用的轻武器仍然是未来战争中不可缺少的重要力量。从一些发达国家研究轻武器的热潮中,不难看出其发展的新趋势。     

弹无虚发的军中特等射手--白城兵器试验中心轻武器试验射手写真

他们是最先接触各种新型轻武器的士兵,他们是为新型轻武器"淬火"的靶场射手.他们就是白城兵器试验中心轻武器试射兵.我军官兵使用的各种轻武器都是经过他们试射检验后才装备部队的.     

应用冲击试验实现光电瞄具强度仿真技术研究

本文介绍了冲击试验技术发展的现状,提出一套用电动式振动台进行冲击响应谱仿真试验代替实弹射击强度试验的方法,解决了轻武器光电瞄具强度试验耗资严重和试验周期长等问题,对提高试验效率和可靠性具有重要意义。     

高技术为轻武器研制注入活力

经过长期的开发之后,轻武器基本结构及弹药的发展势头已经明显减弱。以微电子、新材料技术为代表的高新技术的发展,在看似“一潭死水”的轻武器研制格局中激起波澜,成为轻武器的“力量倍增器”,为提高其作战效能注入了活力。新概念、新机理轻武器的发展,必将大大丰富步兵的作战手段。     

金属橡胶-硅橡胶叠层复合阻尼材料性能试验研究

对金属橡胶-硅橡胶叠层复合阻尼材料性能进行试验研究.首先,设计金属橡胶-硅橡胶叠层复合材料阻尼器及试验装置;其次,对阻尼器进行性能试验并获取试验数据.试验研究表明,金属橡胶-硅橡胶叠层复合阻尼材料的性能不仅与振幅有关,还与振动频率有关,具有非线性滞后特性.试验研究为金属-橡胶硅橡胶叠层复合阻尼材料数学建模、参数辨识和动力学设计及优化准备了试验数据,提供了重要依据和奠定了良好基础.     

挡车的螳臂——步兵与坦克最初的较量

全文记述和评析了在坦克进入战场之初,仅仅以轻武器武装起来的步兵与刚刚爬出襁褓的陆战之王进行的对抗斗争。本文着重从步兵的角度去追溯反坦克战术和武器的起源,探求反坦克作战的开端。     

炮瞄雷达试验数据处理中有关问题的探讨

结合炮瞄雷达国家军用标准和靶场炮瞄雷达试验,对炮瞄雷达精度试验数据处理中的误差分组统计方法、样本大小选取和异常数据点处理等问题进行了探讨,并且提出了相应的处理方法     

国外轻武器高技术含量渐增

高技术是改进轻武器的有效途径:夜视技术能提高轻武器的夜战能力;光电技术可以改善轻武器的反应速度和射击精度;新材料技术可明显改善轻武器的性能;激光等定向能武器可能成为一代崭新的轻武器。90年代以来,各国在继续改进、完善现有轻武器的同时,又把眼光盯向21世纪,积极探索、寻求适应未来战争需要的新型轻武器。探索的重要内容之一就是如何在轻武器上进一步     

活塞环表面CrTiAlN复合涂层的抗高温腐蚀性能研究

采用多弧离子镀技术,利用Cr靶和TiAl靶,在活塞环材料65 Mn钢基体上制备了CrTiAlN复合涂层,并对电镀Cr、CrN和CrTiAlN复合涂层在800℃下的抗高温腐蚀性能进行了比较分析,用扫描电镜、能谱仪和X射线衍射仪观察分析了样品表面高温腐蚀氧化膜。结果表明:CrTiAlN复合涂层具有优异的抗高温腐蚀性能,在800℃时仍具有良好的抗高温腐蚀性能,其氧化机理是O向涂层内部扩散氧化,在高温腐蚀过程中,CrTiAlN涂层中的Cr发生了选择性氧化,优先形成了Cr2O3,CrTiAlN涂层氧化层区域的结构由外至里组成顺序为Cr2O3、Al2O3+TiO2、(Cr,Ti,Al)N。涂层外层的Cr2O3氧化物有利于阻碍氧元素向涂层内部扩散,能够降低涂层的高温腐蚀速度。     

全气动步兵武器表层自动喷涂机设计

分析目前步兵武器零件表层喷涂技术现状,提出全气动自动喷涂机设计方案,根据步兵武器零件结构特点,规划自动喷涂轨迹,设计全气动自动化喷涂专用设备．该设备具有本质安全性,适于部队条件下使用．     

几种固体润滑层的减摩抗磨性能与耐腐蚀性能研究

在MFT-R4000摩擦磨损试验机上考察了几种固体润滑层的减摩抗磨性能,并利用电化学工作站研究了其腐蚀电流和腐蚀电位的变化情况,分析了磨损表面的形貌和硫元素的化学价态变化。几种改性表面的耐腐蚀性能从好到坏的顺序为：NSL层〉SLD层〉离子渗硫〉基体;抗磨性能从好到坏的顺序为：NSL层〉SLD层〉离子渗硫〉基体;摩擦因数从大到小的顺序为：基体〉离子渗硫〉SLD层〉NSL层。NSL层的耐腐蚀性能和抗磨减摩性能最好,原因主要是基础油和纳米材料的润滑作用和屏蔽作用。     

Pitting corrosion resistance and bond strength of stainless steel overlay by friction surfacing on high strength low alloy steel

Surface modification is essential for improving the service properties of components. Cladding is one of the most widely employed methods of surface modification. Friction surfacing is a candidate process for depositing the corrosion resistant coatings. Being a solid state process, it offers several advantages over conventional fusion based surfacing process. The aim of this work is to identify the relationship between the input variables and the process response and develop the predictive models that can be used in the design of new friction surfacing applications. In the current work, austenitic stainless steel AISI 304 was friction surfaced on high strength low alloy steel substrate. Friction surfacing parameters,such as mechtrode rotational speed, feed rate of substrate and axial force on mechtrode, play a major role in determining the pitting corrosion resistance and bond strength of friction surfaced coatings. Friction surfaced coating and base metal were tested for pitting corrosion by potentiodynamic polarization technique. Coating microstructure was characterized using optical microscopy, scanning electron microscopy and X-ray diffraction. Coatings in the as deposited condition exhibited strain-induced martensite in austenitic matrix. Pitting resistance of surfaced coatings was found to be much lower than that of mechtrode material and superior to that of substrate. A central composite design with three factors(mechtrode rotational speed, substrate traverse speed, axial load on mechtrode) and five levels was chosen to minimize the number of experimental conditions. Response surface methodology was used to develop the model. In the present work, an attempt has been made to develop a mathematical model to predict the pitting corrosion resistance and bond strength by incorporating the friction surfacing process parameters.     

舰载武器系统零位一致性检测研究

提出了一种舰载武器系统零位一致性检测的新方法 ,从理论上分析了该方法的原理 .采用该方法 ,可以实现全天候联调检测     

Microstructure and pitting corrosion of shielded metal arc welded high nitrogen stainless steel

The present work is aimed at studying the microstructure and pitting corrosion behaviour of shielded metal arc welded high nitrogen steel made of Cromang-N electrode. Basis for selecting this electrode is to increase the solubility of nitrogen in weld metal due to high chromium and manganese content. Microscopic studies were carried out using optical microscopy(OM) and field emission scanning electron microscopy(FESEM). Energy back scattered diffraction(EBSD) method was used to determine the phase analysis, grain size and orientation image mapping. Potentio-dynamic polarization testing was carried out to study the pitting corrosion resistance in aerated 3.5% NaCl environment using a GillAC electrochemical system. The investigation results showed that the selected Cr-Mn-N type electrode resulted in a maximum reduction in delta-ferrite and improvement in pitting corrosion resistance of the weld zone was attributed to the coarse austenite grains owing to the reduction in active sites of the austenite/delta ferrite interface and the decrease in galvanic interaction between austenite and delta-ferrite.     

Microstructure and pitting corrosion of armor grade AA7075 aluminum alloy friction stir weld nugget zone-Effect of post weld heat treatment and addition of boron carbide

Friction stir welding(FSW) of high strength aluminum alloys has been emerged as an alternative joining technique to avoid the problems during fusion welding.In recent times FSW is being used for armor grade AA7075 aluminum alloy in defense,aerospace and marine applications where it has to serve in non uniform loading and corrosive environments.Even though friction stir welds of AA7075 alloy possess better mechanical properties but suffer from poor corrosion resistance.The present work involves use of retrogression and reaging(RRA) post weld heat treatment to improve the corrosion resistance of welded joints of aluminum alloys.An attempt also has been made to change the chemical composition of the weld nugget by adding B4C nano particles with the aid of the FSW on a specially prepared base metal plate in butt position.The effects of peak aged condition(T6),RRA and addition of B4C nano particles on microstructure,hardness and pitting corrosion of nugget zone of the friction stir welds of AA7075 alloy have been studied.Even though RRA improved the pitting corrosion resistance,its hardness was slightly lost.Significant improvement in pitting corrosion resistance was achieved with addition of boron carbide powder and post weld heat treatment of RRA.     

玄武岩纤维增强塑料筋耐海水腐蚀性研究

海工工程中由于海水的腐蚀,混凝土中的钢筋会出现锈蚀等问题.玄武岩纤维增强塑料筋作为一种新型建筑材料,用来代替钢筋用在海工工程等腐蚀性较强的混凝土中,以此避免钢筋锈蚀带来的耐久性问题.研究了玄武岩纤维增强塑料筋耐海水腐蚀性,采用常温长期浸泡和高温浸泡加速腐蚀试验方法,得出玄武岩纤维增强塑料筋在常温下耐海水腐蚀性较强,而在...     

摩步师(团)反空袭作战空中威胁评估

运用定量和定性分析相结合的方法,对摩步师(团)战斗行动中面临的空中威胁进行了分析,提出了评估的方法和步骤,建立了评估模型,并结合实例对评估方法、步骤、模型进行了分析验证.实例计算表明,该方法的判断结果预见性好、可靠性强,对未来摩步师(团)反空袭作战有一定的现实意义.