Process and device for chopping a body of solid explosives, especially
composite rocket fuels
    2.
    发明授权
    Process and device for chopping a body of solid explosives, especially composite rocket fuels 失效
    用于切碎一批固体炸药的工艺和装置,特别是复合火箭燃料

    公开(公告)号:US5941466A

    公开(公告)日:1999-08-24

    申请号:US836432

    申请日:1997-05-09

    摘要: A method for chopping a body consisting of explosives is described, by which a high-pressure water jet emerging from a nozzle is directed against the body of solid explosive and in which the nozzle and the body carry out a movement relative to each other during the chopping. Preferred fields of use are composite rocket fuels. There is also described a device for carrying out the process, in which the body of composite rocket fuel to be decomposed or divided into portions is secured on a chopping bench, and a nozzle fastened to a nozzle holder for the high-pressure water jet as well as at least one means for producing a relative movement serving as chopping advance movement between the nozzle and the body of composite rocket fuel are provided.

    摘要翻译: PCT No.PCT / EP95 / 04104 Sec。 371日期:1997年5月9日 102(e)日期1997年5月9日PCT提交1995年10月19日PCT公布。 公开号WO96 / 14961 日期1996年5月23日描述了一种用于切碎由爆炸物组成的身体的方法,通过该方法从喷嘴出来的高压水射流朝向固体炸药体,并且其中喷嘴和身体相对于 在剁碎期间彼此。 优选的使用领域是复合火箭燃料。 还描述了一种用于执行该方法的装置,其中要分解或分成多个部分的复合火箭燃料的主体固定在砧板上,并且固定到用于高压水射流的喷嘴保持器的喷嘴作为 并且提供至少一种用于产生用于在喷嘴和复合火箭燃料的主体之间切断前进运动的相对运动的装置。

    Method for producing explosive trains
    4.
    发明授权
    Method for producing explosive trains 失效
    生产爆炸火车的方法

    公开(公告)号:US4050347A

    公开(公告)日:1977-09-27

    申请号:US703992

    申请日:1976-07-09

    CPC分类号: C06C7/02 C06B45/12 F42B33/008

    摘要: A method for mass producing and loading explosive charges in detonators, ds, relays, primers, etc., utilizing the explosive charges each in sheet form. Sheets corresponding to the various increments, each containing the finely divided high explosive and binder therefor, are superposed in the proper order preferably on a sheet of closing disc material, and the resulting structure of layered sheets is cored to produce the explosive train. The coring can be accomplished with a battery of cutters so that large numbers of explosive trains can be cut to size simultaneously. The explosive train cores thus obtained can be pushed out of the cutters into cups, which are then crimped and sealed.

    摘要翻译: 雷管,引线,继电器,底漆等大量生产和装载爆炸物的方法,利用片式的炸药。 对应于各种增量的片材,每个增量都包含细碎的高爆炸物和粘合剂,优选地以适当的顺序重叠在封闭的盘片材料上,并且所得到的层状片材的结构用于制造爆炸火车。 取芯可以用一批切割机完成,以便可以同时切割大量的爆炸火车。 这样获得的爆炸火车头芯可以从切割器中推出成杯,然后将其压接和密封。

    Propellant grain cutting assembly
    6.
    发明授权
    Propellant grain cutting assembly 失效
    推进剂切粒机组

    公开(公告)号:US5419501A

    公开(公告)日:1995-05-30

    申请号:US153337

    申请日:1993-11-15

    CPC分类号: F42B33/008 B23C5/02 F02K9/24

    摘要: A cutting assembly for cutting propellant from a rocket motor. The cutting assembly includes a plurality of first cutting wheels, second cutting wheels and secondary cutters which are mounted to a mounting head. The mounting head is attached to an arm for rotation about an axis of rotation. Means are provided for rotating the mounting head. The cutting wheels are mounted to the mounting head for rotation about an axis of rotation transverse to the axis of rotation of the mounting head. Each cutting wheel includes a plurality of cutting blades extending outwardly from the rim. The cutting blades are each configured with a radially extending cutting edge for cutting in a direction substantially normal to the axis of rotation of the mounting head. The cutting blades are oriented at an approximate 30 degree angle to the axis of rotation of the first cutting wheel, with the angle of orientation of the cutting blades of the second cutting wheels being opposite in direction to the angle of orientation of the cutting blades of the first cutting wheels. The secondary cutters include a substantially circular cutting blade for making cuts in the propellant which are substantially transverse to the cuts made by the first and second cutting wheels.

    摘要翻译: 用于从火箭发动机切割推进剂的切割组件。 切割组件包括安装到安装头上的多个第一切割轮,第二切割轮和二次切割器。 安装头附接到臂上以围绕旋转轴线旋转。 提供用于旋转安装头的装置。 切割轮安装到安装头上,用于围绕安装头的旋转轴线的旋转轴线旋转。 每个切割轮包括从边缘向外延伸的多个切割刀片。 切割刀片各自配置有径向延伸的切削刃,用于沿大致垂直于安装头的旋转轴线的方向切割。 切割刀片与第一切割轮的旋转轴线成大约30度的角度定位,其中第二切割轮的切割刀片的取向方向与切割刀片的取向角度方向相反 第一个切割轮。 二次切割器包括用于在推进剂中切割的基本上圆形的切割刀片,其基本上横向于由第一和第二切割轮制成的切口。

    Method to reduce damage to backing plate
    7.
    发明授权
    Method to reduce damage to backing plate 失效
    减少背板损坏的方法

    公开(公告)号:US06303901B1

    公开(公告)日:2001-10-16

    申请号:US09558144

    申请日:2000-04-21

    IPC分类号: B23K2638

    摘要: The present invention is a method for penetrating a workpiece using an ultra-short pulse laser beam without causing damage to subsequent surfaces facing the laser. Several embodiments are shown which place holes in fuel injectors without damaging the back surface of the sack in which the fuel is ejected. In one embodiment, pulses from an ultra short pulse laser remove about 10 nm to 1000 nm of material per pulse. In one embodiment, a plasma source is attached to the fuel injector and initiated by common methods such as microwave energy. In another embodiment of the invention, the sack void is filled with a solid. In one other embodiment, a high viscosity liquid is placed within the sack. In general, high-viscosity liquids preferably used in this invention should have a high damage threshold and have a diffusing property.

    摘要翻译: 本发明是一种使用超短脉冲激光束穿透工件的方法,而不会对面对激光器的后续表面造成损害。 示出了在燃料喷射器中放置孔而不损坏其中喷射燃料的袋的背面的几个实施例。 在一个实施例中,来自超短脉冲激光的脉冲每脉冲去除约10nm至1000nm的材料。 在一个实施例中,等离子体源连接到燃料喷射器并通过诸如微波能量的常用方法启动。 在本发明的另一个实施方案中,袋状空隙填充有固体。 在另一个实施方案中,将高粘度液体放置在袋内。 通常,本发明优选使用的高粘度液体应具有高损伤阈值并具有扩散性。

    Laser machining of explosives
    8.
    发明授权
    Laser machining of explosives 失效
    激光加工炸药

    公开(公告)号:US6150630A

    公开(公告)日:2000-11-21

    申请号:US62078

    申请日:1998-04-17

    摘要: The invention consists of a method for machining (cutting, drilling, sculpting) of explosives (e.g., TNT, TATB, PETN, RDX, etc.). By using pulses of a duration in the range of 5 femtoseconds to 50 picoseconds, extremely precise and rapid machining can be achieved with essentially no heat or shock affected zone. In this method, material is removed by a nonthermal mechanism. A combination of multiphoton and collisional ionization creates a critical density plasma in a time scale much shorter than electron kinetic energy is transferred to the lattice. The resulting plasma is far from thermal equilibrium. The material is in essence converted from its initial solid-state directly into a fully ionized plasma on a time scale too short for thermal equilibrium to be established with the lattice. As a result, there is negligible heat conduction beyond the region removed resulting in negligible thermal stress or shock to the material beyond a few microns from the laser machined surface. Hydrodynamic expansion of the plasma eliminates the need for any ancillary techniques to remove material and produces extremely high quality machined surfaces. There is no detonation or deflagration of the explosive in the process and the material which is removed is rendered inert.

    摘要翻译: 本发明包括一种用于加工(切割,钻孔,雕刻)爆炸物(例如TNT,TATB,PETN,RDX等)的方法。 通过使用持续时间在5飞秒至50皮秒范围内的脉冲,可以在基本上没有受热或冲击影响的区域实现非常精确和快速的机械加工。 在这种方法中,通过非热机制去除材料。 多光子和碰撞电离的组合在比电子动能转移到晶格更短的时间尺度上产生临界密度等离子体。 所得到的等离子体远离热平衡。 该材料本质上从其初始固态直接转化为完全离子化的等离子体,其时间尺度太短而不能与晶格建立。 结果,除去区域之外的热传导可忽略不计,导致对激光加工表面超过几微米的材料的热应力或冲击可忽略不计。 等离子体的流体动力学膨胀不需要任何辅助技术去除材料并产生极高质量的加工表面。 在该过程中爆炸物没有爆炸或爆燃,被除去的物质变得惰性。