32results about How to "Improve high pressure stability" patented technology

A method and a device for de-gassing a liquid-gas-mixture is proposed. The method comprises: inserting the liquid-gas-mixture (3) into a chamber (5) wherein the chamber (5) is at a reduced gas pressure and arranging the liquid-gas- mixture (3) on a centre region (11) of a surface (13) of a rotating body (15) such that the liquid-gas-mixture (3) is subjected to a centrifugal force. Therein, the surface (13) of the rotating body (15) is adapted such that the liquid-gas-mixture (3) is spread over the surface (13) due to the centrifugal force and finally flows over a radially outward edge region (21) of the surface (13) of the rotating body (15). Due to the occurring centrifugal forces, even highly viscous or thixotropic liquids may bespread over the rotating surface as a thin layer from which gas incorporated in the liquid can easily and effectively escape. Thus, a rigid foam material having low specific weight and high electrically insulating properties can be produced from the de-gassed liquid comprising e.g. a resin into which microspheres are incorporated.

An imaging tube (52, 52′) includes a vacuum vessel (96) and an atmospheric-side supply line assembly (104, 104′). The vacuum vessel (96) has an internal vacuum (98). The supply line assembly (104, 104′) has an electromagnetic shield (94, 94′). An insulator (106, 106′) separates the internal vacuum (98) from an external atmosphere (126). A cathode post (92, 92′) resides within the vacuum vessel (96). The cathode post (92, 92′) is in conductive proximity with the electromagnetic shield (94, 94′) and prevents the bending of electrostatic field lines within the imaging tube (52, 52′).

The invention discloses an X-ray tube adopting a titanium window structure. The X-ray tube comprises a casing, an anode assembly and a cathode assembly, wherein the anode assembly further comprises an anode cap and an anode target assembly, and the anode target assembly is welded with the anode cap; the anode assembly further comprises a titanium window which surrounds and is welded at an exit window of the anode cap. A titanium tape is taken as the exit window of the X-ray tube, can realize equivalent inherent filtration with a beryllium window in a certain thickness, has good extensibility and welding performance and can be tightly connected with the anode cap with the large exit window, and the X-ray tube can output X rays at the large radiation angle and meets the demands of X-ray inspection equipment for the large radiation angle of rays.

A sealed electron beam source (12) for an imaging tube (16) is provided. The beam source (12) includes a source housing (50) with a source window (54) having a first voltage potential and a source electrode (52) having a second voltage potential. The source electrode (52) generates electrons and emits the electrons through the source window (54) to a target (32) that is external to the source housing (50). A method of supplying and directing electrons on the target (32) within the imaging tube (16) is also provided. The method includes forming the source housing (50) over the source electrode (52) and sealing the source housing (50). The electrons are generated and emitted from the source electrode (52) and directed through the source window (54) to the target (32).

A light emission device with improved high voltage stability, and a display device having the light emission device as its light source, the light emission device comprising front and rear substrates disposed to face each other, an electron emission unit disposed on the front substrate and having a plurality of electron emission elements, and a light emission unit including a metal reflective layer formed on the rear substrate and a phosphor layer formed on the metal reflective layer. Each of the electron emission elements includes first electrodes, second electrodes arranged between the first electrodes, and electron emission regions electrically connected to the first electrodes and having a thickness smaller that of the first electrodes.

An ionic liquid electrolyte composition is provided. The ionic liquid electrolyte composition includes an ionic liquid, a conductive salt, and optionally a stabilizing agent. The stabilizing agent is an oxidant, an interface additive, a co-solvent, or a combination thereof.

A polymer electrolyte including a copolymer having at least one first repeating unit represented by Formula 1 and at least one second repeating unit represented by Formula 2:wherein, R1 to R4, L1, and m in Formula 1 and R5 to R7, L2, G and n in Formula 2 are the same as defined in the specification.

The invention discloses an ultra-high voltage leaded capacitor and a preparation method thereof, comprising an aluminum shell, a core pack, a rubber plug, and a lead wire, the lead wire is fixedly connected to the core pack, and the rubber plug is arranged close to the electrode. The end of the core package, the lead wire, the rubber plug and the core package are arranged in the aluminum shell sequentially from top to bottom, the core package includes aluminum foil and electrolytic paper, and the core package The aluminum foil and the electrolytic paper are laminated and wound together, and the core package is also impregnated with an electrolyte, the electrolyte includes a solute, a solvent and an additive, and the weight ratio of the solute is 15% ~25%, the weight ratio of the solvent is 60%~70%, the weight ratio of the additive is 5%~15%, and has the advantages of rated voltage reaching 600V and stable operation.

The invention relates to a welding method for foamed aluminum boards, which comprises the following steps: (1), cleaning the surface to be welded of a foamed aluminum board with an acid solution; (2), flushing the foamed aluminum board treated in the step (1) with deionized water under the protection of nitrogen, heating the flushed foamed aluminum board at 40 to 45 DEG C, and conducting activating treatment on the surface to be welded of the heated foamed aluminum board with an activating fluid for 15 to 20 min; (3), carrying out brazing treatment under the protection of nitrogen; and (4), treating the brazed part of the welded foamed aluminum board under the pressure of 30 to 32 MPa, wherein the environment temperature in the step (4) is 580 to 600 DEG C. As the surface to be welded of the foamed aluminum board is treated with various treating fluids before welding to remove impurities on the surface to be welded of the foamed aluminum board and activate metal on the surface to be welded of the foamed aluminum board, the welding uniformity and the welding strength during welding are improved.

The invention discloses the application of a nitrile compound in the preparation of an electrolyte solution for a high-voltage battery system. The structural formula of the nitrile compound is wherein n 1 , n 2 and n 3 Integers of 0-10 each, but not both 0, R f It is a fluorine-containing functional group. The substitution of the F-containing electron-withdrawing functional group in the present invention can cooperate with the nitrile functional group to modify the positive interface layer well, and further improve the high-voltage stability of the battery; the substitution of the F-containing functional group in the present invention can effectively improve the nitrile molecule. A stable LiF-rich interface layer is formed on the graphite or lithium metal negative electrode, thereby improving the incompatibility of nitrile additives to the negative electrode and improving the overall high-voltage stability of the pouch full battery.

The present disclosure relates to a lithium-ion battery electrolyte and a lithium-ion battery. The electrolyte contains a lithium salt, a solvent and a first additive. The concentration of the lithium salt is 0.1-1.5 mol / L. As a basis, the content of the first additive is 0.1-10 parts by weight. The lithium-ion battery electrolyte of the present disclosure contains a special first additive, which can be used for high-voltage positive and negative film-forming protection, and improves the stability of the electrolyte under high voltage.

The present invention relates to a high voltage battery cooling control technique that improves the operational stability of a high voltage battery by decreasing the likelihood that the battery will overheat due to the indoor air temperature of the vehicle.

The invention discloses a test device for servo control of deep rock mass deformation by using a rigid bearing plate center hole method, and a method for the device. The test device comprises a load control device, a force transmission device and a surface and deep part deformation measurer. The device is characterized in that the force transmission device is a jack, of which the upper end contacts a force transmission column; a top plate is arrange above the jack and contacts the top of a hole; the lower end of the jack contacts a force transmission laminating plate; a bearing plate is arranged below the jack and contacts a rock mass surface; communicated holes are formed at the centers of the force transmission laminating plate and the bearing plate below the jack and connected with rock mass boreholes, namely displacement of different depth points in the rock mass boreholes is subjected to deep displacement deformation measurement by virtue of connection of a measuring bar and a displacement sensor by using the center hole in the rigid bearing plate; a pressure sensor is connected with the jack; and the displacement sensor and the pressure sensor are respectively connected with a collector and a computer, so that real-time servo control of the test pressure, and automatic collecting and recording of pressure and deformation are achieved, and charts of all data are formed.

The invention discloses an electronic load restraining type high-voltage accelerating tube which comprises an electronic gun cathode emission surface, an electronic gun absorbing pole and a plurality of sections of accelerating tubes. Secondary electron beam limiting light bar devices are arranged among the accelerating tubes, and can effectively block secondary electron orbits. The secondary electron beam limiting light bar devices which are applied for a first time are used as an important supplement measure and matched with an existing 'grain trap' device, can entirely eliminate the 'electronic load' phenomenon of 4 to 5 MV accelerators, can reduce high-voltage workout time, and reach rated high voltage of the accelerator faster. Meanwhile the intensity of X-rays generated on the upper accelerating tubes by the secondary electrons can be reduced, and high-voltage stability can be increased. In addition, the secondary electron beam limiting light bar devices with a large caliber can reduce the influence to the vacuuming speed of an electronic gun area. Compared with other methods of restraining the secondary electrons, the electronic load restraining type high-voltage accelerating tube is simple in structure and convenient to install.

Provided are a cathode active material composition including an xLi2MO3.(1−x)LiMeO2 composite (where 0<x<1, and M and Me represent metal ions and may be the same or different from each other) and a conductive polymer material, and a secondary battery including the cathode active material composition in a cathode. Since the conductivity of the secondary battery of the present invention may be improved, the cathode active material composition may improve life characteristics, output characteristics, and rate capability of the secondary battery.