摘要:
A device enabling the ignition of at least two explosive charges using a single detonator, device wherein it comprises at least a first pyrotechnic booster that is ignited by the detonator, a first booster that firstly ignites a first explosive charge by projecting a casing onto it and which is secondly connected to a second explosive charge by at least one detonation wave transmission booster.
摘要:
The invention relates to a wall (2)-protection device (1), notably for a vehicle wall, against attack by a projectile. This device comprises at least one explosive charge (3) able to project at least one metallic block (7) in the direction of the projectile. The device is characterized in that the block or blocks (7) are in the shape of elongated bars, that is which have a maximal length greater than or equal to 10 times their smallest crosswise dimension, the explosive charge (3) being position opposite a longitudinal surface of the bar (7).
摘要:
A neutralization device for a payload carried by a vector, such as a rocket. This device incorporates at least one explosively-formed charge, where such charge is made integral with the vector by a positioning device ensuring the orientation of its direction of action towards the payload.
摘要:
The invention relates to safety priming device for an explosive charge, notably a shaped charge, comprising a pyrotechnic igniter and at least one igniting relay placed between the igniter and an explosive load. This priming device is characterized in that the igniting relay comprises means enabling the detonation wave produced by the igniter or igniters to be re-centered along the charge axis, said means comprising a confinement block having a bore converging between an external face positioned beside the igniter or igniters and an inner face positioned beside the explosive load, said bore filled with a relay explosive, the confinement block comprising means to prevent the propagation of a shock wave axially through the confinement block between the igniter or igniters and the explosive load.
摘要:
A fixed carrier for machine tool parts includes a table frame and a table having a first face That can hold a first part to be machined, the first face being fixed above a machining device and the first part being stationary during the machining process. The table also has a second face for holding steady a second part to be machined.
摘要:
The charge of the invention comprises a plate placed between the explosive charge and the liner. The diameter of the plate is equal to the internal diameter of the casing of the charge. The material used for the plate must be such that its density is lower than or equal to that of the material used for the liner and must have a volumetric compressibility modulus greater than or equal to 100 GPa, with the thickness of the plate greater than or equal to that of the liner at any point of a central area surrounding the axis of the charge, so as to ensure that upon initiation of the charge the centripetal deformation of the plate will be less than that of the liner.
摘要:
The invention relates to the manufacture of a composite material part by shaping a fibrous reinforcement texture and densifying the texture by chemical vapor infiltration of the material constituting the matrix of the composite through the porosity of the texture. Before densification, the texture is separated from an adjacent structure, such as an adjacent surface of a tool (12, 14) inside which the texture is held, or another texture, by means of an inserted layer (10) of fabric produced in a refractory material having a thermal expansion coefficient different from that of the constituent material of the texture.
摘要:
Sintered ceramic elements are associated to at least one composite material layer having a fibrous reinforcement arrangement and a ceramic matrix located behind the sintered ceramic elements.
摘要:
The disc consists of a core (1), being a hub (3) surrounded by spokes (2), and friction pads in the form of annular sectors (8) having recesses (15, 16) in their inside backs (10) to cooperate with the spokes (2) in providing radial guidance and angular locking. Elastic means are provided for removably axially mounting the sectors on the core (1), which elastic means (19, 6) also serve to removably radially mount the sectors on the core.
摘要:
A vehicle bumper with shock-absorbers, including a rigid support attached to a vehicle onto which a bumper shell is fitted, the shock-absorbers including at least two pyrotechnic actuators linking the rigid support to the vehicle, the actuators being connected for activation by a control system including an impact or deceleration sensor, and each pyrotechnic actuator including at least two gas-generating powder tablets to be primed individually by the control system.