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    • 1. 发明申请
    • DEVICE FOR STRENGTHENING THE SURFACE OF PRODUCTS, METHOD AND USE THEREOF
    • WO2021170156A1
    • 2021-09-02
    • PCT/CZ2021/000009
    • 2021-02-26
    • USTAV TERMOMECHANIKY AV CR, V.V.I.
    • ŠONSKÝ, Jiří
    • C21D7/02C21D7/04C21D10/00C21D1/09B23H7/38C21D1/06B23P9/04B21D31/06C21D7/06
    • The invention relates to a method and a device for strengthening the surface of workpieces, in particular of metal ones, by mechanical effects accompanying the impact of small projectiles or by mechanical effects accompanied by the impact of a shockwave induced by plasma created by electric evaporation of a metal foil, wherein the device comprises a polymer strip (32} which is provided with a metal foil (71) on the surface of the side diverted from the surface of the workpiece (10) in which foil bridges (34) are formed to form projectiles (100), further comprising two electrodes (33) and (66) adjacent to the metal foil (71) located on the polymer strip (32),wherein bridges (34) are formed between the contact surface areas (27) of the metal foil (71), and the electrodes (33) and (66) between which the plasma is formed, are mounted in a support body (41), through which flat conductors (44) and (46) are connected to a switch (84) for switching large currents and high voltages with a high-voltage source (83), wherein the polymer strip (32) provided with the metal foil (71) tightly abuts the support body (41) with the electrodes (33) and (66) and the electrodes (33) and (66) protrude above the upper surface of the support body (41) to provide electric contact with the contact surface areas (27; of the applied metal foil (71). The method of strengthening the surface of workpieces (10) by means of the device according to the invention consists in that one cycle of strengthening the surface of workpieces (10) involves the action of an electric current pulse supplied from a high voltage source (83) after closing the switch (84) by conductors (44, 46; to electrodes (33, 66) between which a high voltage is applied, thereby shorting the circuit on the metal foil (71) at the location of the bridges (34) to form a plasma expanding and by a. compressive force acting on the polymer strip (32)part of which hits as a projectile (100) the surface of the workpiece (10), wherein the plasma generated by the electric current pulse, in addition to the expansion pressure, is also accelerated by the electromagnetic Lorentz force (20) caused by the passage of electric current, through this plasma in the generated magnetic field.
    • 6. 发明申请
    • ELECTROMAGNETIC HAMMER DEVICE FOR THE MECHANICAL TREATMENT OF MATERIALS AND METHOD OF USE THEREOF
    • 用于机械处理材料的电磁锤装置及其使用方法
    • WO2017216587A1
    • 2017-12-21
    • PCT/GR2016/000028
    • 2016-06-13
    • MORES, Stylianos
    • MORES, Stylianos
    • B24B39/00C21D7/04B23P9/04B21D26/14
    • Electromagnetic hammer device for the mechanical treatment of materials and method of use thereof An electromagnetic hammer device adapted to provide non-contact mechanical treatment of a material in planar items (1), cylindrical items (13) or tubular items (16) comprising a conductor (2) provided along a predetermined path within the material (1,13,16) being treated and being supplied with a first pulsed current and a linearly configured conductor (4) or V-shaped conductor (10) or conductive tube (14,17) lined on top of conductor (2) and being supplied with a second pulsed current, a layer of insulating material (5) being lined intermediately between conductors (2) and (4,10,14,17). The simultaneous application of the first and second pulsed currents in the same direction results in exerting tensile forces onto the material (1,13,16) and application of the currents in opposite directions results in exerting compressive forces therein. A pair of auxiliary conductors (7, 8; 11, 12) is preferably provided in each side of conductor (4, 10) respectively, which provide adjustment of the angle in which the tensile or compressive forces are applied. A method for the mechanical treatment of a material using the hammer device described above is also presented.
    • 用于材料机械处理的电磁锤装置及其使用方法一种电磁锤装置,适用于对平面项目(1),圆柱形物品(13)或 管状物件(16)包括沿待处理的材料(1,13,16)内的预定路径提供的导体(2),并且被供应有第一脉冲电流和线性构造的导体(4)或V形导体( (2)和(4,10,14)之间衬有一层绝缘材料(5)的绝缘材料层(5),所述导电管(14,17) ,17)。 第一和第二脉冲电流同时施加在同一方向上导致在材料(1,13,16)上施加张力,并且沿相反方向施加电流导致在其中施加压缩力。 一对辅助导体(7,8; 11,12)优选地分别设置在导体(4,10)的每一侧中,其分别提供了施加拉伸力或压缩力的角度的调节。 还介绍了使用上述锤击装置对材料进行机械处理的方法。