Shock wave consolidation of materials
    252.
    发明申请
    Shock wave consolidation of materials 审中-公开
    冲击波合并材料

    公开(公告)号:US20040256441A1

    公开(公告)日:2004-12-23

    申请号:US10495272

    申请日:2004-05-10

    CPC classification number: B01J3/08 B22F3/087 B22F2999/00 B22F7/08 B22F3/1216

    Abstract: A composite structure comprises several layers of various materials which are to be united by welding and simultaneously consolidated. The method resides in that the densities and moduli of elasticity of the various layers are adapted by composition, shape, state and temperature in such a way that the velocity of sound is considerably modified upon penetration of the composite structure. A shock wave is applied to one or both sides. This shock wave breaks down into harmonic vibrations that can sum up, concentration of energy resulting on the respective interfaces, ensuring the union within and between the layers.

    Abstract translation: 复合结构包括几层通过焊接并同时固结的各种材料。 该方法的特征在于,各种层的密度和弹性模量通过组合物,形状,状态和温度进行调节,使得在复合结构的穿透时,声速被显着改变。 冲击波应用于一侧或两侧。 这种冲击波分解成谐波振动,可以总结出各个界面产生的能量集中,确保层内和之间的联合。

    Pulsed detonation rocket engine
    254.
    发明授权
    Pulsed detonation rocket engine 失效
    脉冲爆震火箭发动机

    公开(公告)号:US5873240A

    公开(公告)日:1999-02-23

    申请号:US662858

    申请日:1996-06-12

    Abstract: A pulse detonation rocket engine, having at least two detonation chambers. The rocket propelled vehicle includes at least one fuel delivery system in fluid communication with each of the at least two detonation chambers, and at least one oxidant delivery system in fluid communication with the detonation chambers, along with fast-acting valves to inject fuel and oxidant controlledly into the chambers. An ignitor in each of the detonation chambers intermittently initiates detonation of a fuel and oxidant mixture in the chamber, in a controlled cycle, to provide motive force. Also provided is a combined cycle engine, able to operate in air breathing mode, oxidant augmented mode, and as a rocket engine. The combined cycle engine includes at least one detonation chamber, and may include a plurality of such chambers. The invention further provides methods of intermittently detonating sequentially created fuel and oxygen mixtures in these engines, and methods of using these engines.

    Abstract translation: 具有至少两个爆震室的脉冲爆震火箭发动机。 火箭推进车辆包括与至少两个爆炸室中的每一个流体连通的至少一个燃料输送系统,以及与爆震室流体连通的至少一个氧化剂输送系统,以及用于喷射燃料和氧化剂的快速作用阀 受控地进入房间。 每个引爆室中的点火器在受控循环中间歇地启动燃料和氧化剂混合物的爆炸,以提供动力。 还提供了能够在空气呼吸模式,氧化剂增强模式和作为火箭发动机中操作的联合循环发动机。 联合循环发动机包括至少一个爆震室,并且可以包括多个这样的室。 本发明还提供了在这些发动机中间歇地引爆依次产生的燃料和氧气混合物的方法,以及使用这些发动机的方法。

    Carbon composition production process
    255.
    发明授权
    Carbon composition production process 失效
    碳组合生产工艺

    公开(公告)号:US5482695A

    公开(公告)日:1996-01-09

    申请号:US094095

    申请日:1993-07-22

    CPC classification number: C01B31/06 B01J3/08 C09K3/1409 B01J2203/0655

    Abstract: The present invention relates to production of superhard materials.A carbon composition contains 18-38 wt. % of diamond having particle size of 40-120 .ANG. and graphite to make up 100 wt. % having particle size of 200-1000 .ANG..A process for producing the carbon composition consists in detonating a carbon-containing explosive having a negative oxygen balance, in a cooling medium containing 40-60 vol. % of carbon dioxide gas, not more than 2 vol. % of free oxygen, and a neutral gas to make up 100 vol. %.The present carbon composition will find predominant application as an abrasive for superfinish polishing.

    Abstract translation: PCT No.PCT / SU91 / 00135 Sec。 371日期:1993年7月22日 102(e)日期1993年7月22日PCT提交1991年7月3日PCT公布。 公开号WO93 / 01129 日本1993年1月21日本发明涉及超硬材料的制造。 碳组合物含有18-38wt。 颗粒尺寸为40-120的金刚石和石墨组成的100% 粒度为200-1000安培的%。 制备碳组合物的方法包括在含有40-60体积%的冷却介质中引爆具有负氧平衡的含碳炸药。 二氧化碳气体的含量不超过2体积% 游离氧的百分比和中性气体组成100体积。 %。 本发明的碳组合物将作为超精细抛光的研磨剂发挥主要应用。

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