32results about "Electrode assembly manufacture" patented technology

The invention discloses an electrode assembly for a high-power pulse xenon lamp and a preparation method of the electrode assembly, and aims to overcome the technical defects that a traditional electrode is large in mass and poor in reliability and stability. The electrode assembly is mainly composed of an electrode tip, an electrode stem and a lead seat which are made of cerium-tungsten alloy, niobium and stainless steel. The electrode tip and the electrode rod are stably connected in a mode of combining brazing with interference connection, and the electrode rod and the lead seat adopt a multi-connection structure of brazing, threaded mechanical connection and micro interference connection; the assembled electrode assembly is subjected to degassing, brazing connection and electrode activation treatment at a time in a high-temperature and high-vacuum environment, and the problem of electrode material pollution caused by repeated heating is effectively avoided. The electrode assembly is simple in overall structure, reliable in preparation, excellent in current passing ability, capable of bearing impact force under extreme working conditions and outstanding in burning loss resistance, reliability and stability are remarkably improved, and the long-term stable working requirement and large-scale mass production of the high-power pulse xenon lamp are met.

The invention discloses an electric field deflector, a preparation method thereof and an electric field deflection control system, relates to the field of semiconductors, and is used for realizing high-precision control of electron beams. The electric field deflector comprises a substrate, a dielectric layer arranged on one side of the substrate, a first signal interconnection lead connected with the ground electrode, a second signal interconnection lead connected with the signal electrode, a first deflection electrode and a second deflection electrode, wherein the first signal interconnection lead and the second signal interconnection lead are located in the dielectric layer and are connected with the ground electrode, and the first deflection electrode and the second deflection electrode are oppositely arranged. The first deflection electrode is electrically connected with the first signal interconnection lead, and the second deflection electrode is electrically connected with the second signal interconnection lead; the first shielding layer is connected with the first deflection electrode; the particle beam channel penetrates through the area between the first deflection electrode and the second deflection electrode, the part, located between the first signal interconnection lead and the second signal interconnection lead, of the dielectric layer, the first shielding layer and the substrate in the second direction; the second direction is vertical to the substrate; the electric field deflector is used for electric field deflection control of the charged particle beam.

The invention discloses a method for simply and rapidly installing a dynode of an electron multiplier, and belongs to the field of electron multiplier assembly. According to the method, extra tools are not needed, and only three long screws and a pair of pointed tweezers need to be additionally used. According to the method, the problem that time and labor are wasted when the ceramic plate of the multiplier and nine dynodes are folded and aligned is solved, and the installation of the dynodes can be effectively accelerated. During installation, the three long screws are inserted into the through holes of the ceramic plate bottom plate, then the screws are sleeved with the limiting stainless steel cylinders respectively, then the nine dynodes and the collecting plate are sequentially installed on the ceramic plate bottom plate, then the ceramic plate top plate is sleeved with the three screws, the hexagonal studs are screwed, and the ceramic plate top plate is installed on the ceramic plate bottom plate. And the distance between the top and bottom ceramic plates is about 4mm longer than that of the limiting stainless steel cylinder. The nine dynodes and the collecting plate are sequentially stirred through pointed tweezers, the upper feet of the dynodes and the collecting plate enter the small mounting holes corresponding to the top plate of the ceramic plate, the lower feet of the dynodes do not leave the small mounting holes corresponding to the bottom ceramic plate, and the top ceramic plate and the bottom ceramic plate are tightened after completion. And the long screws are replaced by the original screws of the multiplier in sequence, and the dynode is assembled.

The application belongs to the technical field of X-ray tubes, and discloses an anode assembly and a processing method thereof. The anode assembly comprises a molybdenum reflector, a molybdenum rotor assembly and an intermediate layer. The intermediate layer is made of metal material and is arranged between the molybdenum reflector and the molybdenum rotor assembly by using the processing method. In the heating process, the intermediate layer can effectively absorb and buffer thermal stress and shrinkage stress generated from the molybdenum components on both sides due to heating and cooling through plastic deformation of the intermediate layer, thereby greatly reducing the risk of micro-cracks caused by stress concentration. Moreover, since the chemical affinity of the intermediate layer to impurity atoms is higher than that of molybdenum material, in a protective atmosphere or a vacuum environment, the intermediate layer can be ensured to preferentially react with the harmful impurities in the interface area during the welding process to form stable compounds, thereby preventing the impurities from segregating at the grain boundaries of molybdenum, significantly improving the microstructure and toughness of the molybdenum heat-affected zone, and enhancing the anti-grain boundary cracking ability.

A system and method of texturing a surface of an X-ray tube component, which comprises applying laser radiation to the surface of the X-ray component to remove material from the surface of the X-ray tube component by producing a pattern of varying structures on the surface of the X-ray tube component to improve the emissivity of the X-ray tube component.

An X-ray tube according to an embodiment includes a periphery that keeps the inside in vacuum, an anode target that generates X-rays by collision of hot electrons, and a cathode electron gun that emits the hot electrons to the anode target, and includes a periphery assembly that has a metal cylindrical support body fixing portion and constitutes the periphery, and a cathode assembly that has a metal support body that holds the cathode electron gun at a front end portion, and in the support body fixing portion, the support body of the cathode assembly is fixed at an inner peripheral side by welding.

The application discloses a kind of solder, solder slurry, magnetron cathode assembly and preparation method thereof, it is related to magnetron cathode assembly field.Therein, solder is obtained by 15-40wt% tungsten, 30-60wt% molybdenum and 15-40wt% nickel mixed ball milling.Solder slurry includes organic carrier, solvent and solder, organic carrier is 5-15% of the weight of the solder, solvent is 5-20% of the weight of the solder.Lamp filament and molybdenum end cap in magnetron cathode assembly are brazed using the above-mentioned solder, specific operation method is that solder slurry is coated on molybdenum end cap, sintering forms solder layer, then again heating melts solder layer to weld and fix lamp filament and molybdenum end cap.The solder in the present application has the advantages of low cost, low brazing temperature and wide range, low vapor pressure, can improve the welding effect of lamp filament and molybdenum end cap while reducing the bubbling probability of molybdenum end cap, so as to improve the qualified rate of finished product of magnetron cathode assembly.

The utility model discloses a tool for sealing a cathode supporting assembly of a traveling wave tube, relates to the technical field of traveling wave tube assembly, and is mainly used for solving the defects of the conventional tool for sealing. According to the main structure, the device comprises a base, the upper surface of the base is connected with an emitter installation boss, the outer side of the emitter installation boss is sleeved with a positioning sleeve, and the inner wall of the positioning sleeve is provided with a positioning step; a pressing cap is arranged above the positioning sleeve, an emitter pressing block is arranged below the pressing cap, a supporting seat pressing block is arranged on the upper surface of the pressing cap, and a supporting frame pressing block is arranged on the upper surface of the supporting seat pressing block. The utility model provides a tool for sealing a traveling wave tube cathode support assembly, which can effectively fix each part of the cathode support assembly in the brazing process and avoid displacement of each part.

The application provides a high-temperature-resistant composite anode base and a preparation method thereof. The preparation method comprises the following steps: firstly, designing and processing a basic component of the composite anode base according to the shape requirement of the composite anode base; and then, welding, isothermal pressing, mechanical processing and high-temperature exhaust treatment are sequentially performed to obtain the finished product of the composite anode base. The preparation method has high production efficiency, and the composite anode base prepared by the method has the advantages of high high-temperature strength and high dynamic balance precision. In addition, the preparation process is relatively simple, and the requirement for equipment is relatively low.

This utility model discloses an eccentric adjustment device for the cathode end cap and anode cylinder of a magnetron, including an indexing turntable assembly and a carrier cylinder. The indexing turntable assembly has a turntable, and the carrier cylinder is rotatably mounted on the turntable. It also includes a vision system, comprising a camera for upward imaging of the output end cap and the connecting ring; a carrier cylinder rotation drive mechanism for driving the magnetron assembly to rotate, including a carrier cylinder servo motor that drives the carrier cylinder to rotate; a pressing assembly, including a pressing block servo motor and a pressing block for pressing down the top outer periphery of the ceramic shaft, the pressing block servo motor driving the pressing block to move up and down; and a control system, which is signal-connected to the vision system and controls the indexing turntable assembly, the carrier cylinder rotation drive mechanism, and the pressing assembly. This eccentric adjustment device for the magnetron cathode end cap and anode cylinder improves the effectiveness of eccentric adjustment and increases work efficiency.

The invention discloses a photomultiplier photocathode integrated manufacturing system and method, and belongs to the technical field of photoelectric detection. The device comprises a precision processing cavity design, configuration of a composite three-stage vacuum pump set system with precise monitoring and control, a cleaning and degassing unit integrating plasma cleaning, high-temperature baking and an electronic brushing module, a dynamic evaporation system with multi-parameter in-situ control, and a packaging unit with laser ranging matched with visual precision cooperative positioning. On the basis of the integrated system, the steps of photocathode substrate surface cleaning, chamber baking, alkali source degassing, electronic brushing, photocathode evaporation and packaging are sequentially executed. According to the invention, the quantum efficiency of the photocathode is greater than or equal to 30% and the surface photoelectric efficiency distribution deviation is less than or equal to 5% under the wavelength of 550nm by relying on a 10-9Pa-level ultrahigh vacuum environment and combining a dynamic intelligent model to iterate evaporation process parameters in real time, so that the problem that the service life of the photocathode is short is effectively solved, the sensitivity is doubled compared with that of a traditional device, the production efficiency and the cost are optimized, and leap-type improvement of the efficiency is realized.

A method for manufacturing a radio frequency (RF) or electron beam structure, comprising the steps of forming each layer of a multilayer to be aligned and assembled and joined together, the step of forming a first via segment of a first specific shape and size in the layer at a first position in the layer, so that when the multilayer first via segments are aligned and assembled, a number of first via segments are aligned and form first vias; and the step of inserting first similar pins into the first vias, the first similar pins being formed based on the first specific shape and size of each of the first via segments, thereby assisting in the alignment and assembly of the multilayer by inserting the first similar pins into the first vias.

Vacuum electronic devices (VEDs) having multiple two-dimensional layers of various materials are bonded together to simultaneously form one or more VEDs. The two-dimensional material layers are machined to include features required for device operation, such that when assembled and bonded into a three-dimensional structure, three-dimensional features are formed. The two-dimensional layers are bonded together into a sandwich-like structure. The manufacturing method is capable of incorporating metal materials, magnetic materials, ceramic materials, and other materials as required for VED fabrication, while maintaining the required positional accuracy and ability to produce multiple devices per batch.

The utility model discloses a xenon-mercury lamp installation auxiliary suite which comprises a beam shell and a clamping arm, a positioning shaft is fixedly installed in the middle of the beam shell, a twisting disc is rotatably installed on the positioning shaft, the twisting disc is rotatably installed in the beam shell, the two ends of the twisting disc protrude out of the front wall and the rear wall of the beam shell, and inner sliding shells are installed at the two ends of the beam shell in a sliding mode. The outer ends of the two inner sliding shells are welded to the upper ends of clamping arms, fixed mounting holes are formed in the lower ends of the clamping arms, and a fixed connecting rod is installed between the two inner sliding shells in a penetrating mode and penetrates through the twisting disc and the positioning shaft. After electrodes at the two ends of the xenon-mercury lamp are pre-fixed through the clamping arms, under the wedge-shaped effect of the tip ends of the lower ends of the clamping arms, clamping petal openings on the mounting base are opened, at the moment, a twisting disc is driven, an inner sliding shell moves towards the two ends, then the clamping arms are driven to move towards the two ends, pre-fixing of the two ends of the xenon-mercury lamp is relieved, and opening of the clamping petal openings is relieved; and the purpose of preventing the diameter of the xenon-mercury lamp from bearing stress in the installation process is achieved.

Vacuum electron devices (VEDs) are produced having a plurality of two-dimensional layers of various materials that are bonded together to form one or more VEDs simultaneously. The two-dimensional material layers are machined to include features needed for device operation so that when assembled and bonded into a three-dimensional structure, three-dimensional features are formed. The two-dimensional layers are bonded together using brazing, diffusion bonding, assisted diffusion bonding, solid state bonding, cold welding, ultrasonic welding, and the like. The manufacturing process enables incorporation of metallic, magnetic, and ceramic materials required for VED fabrication while maintaining required positional accuracy and multiple devices per batch capability. The VEDs so produced include a combination of magnetic and electrostatic lenses for electron beam control.

The invention discloses a welding device and method for a rotating anode of an X-ray tube, and the welding device comprises a housing which is used for providing a vacuum environment and is internally provided with a containing cavity; the annular electron beam generator is located in the containing cavity and used for generating an annular electron beam, the annular electron beam can form an annular melting area on the rotating anode to be welded, and a target disc and a rotor of the rotating anode are welded into a whole; and the power supply system is respectively connected with the annular electron beam generator and the rotating anode to form an electric field, so that the annular electron beam is accelerated to move towards the rotating anode. According to the welding device, the annular electron beam generator generates the annular electron beam matched with the outline of the thread to be welded, and energy of the annular electron beam can uniformly act on the whole circumference of the thread connection, so that melting and re-solidification of the whole thread connection area can be completed at a time in the welding process; and a continuous and uniform welding seam is formed.

According to the X-ray tube cathode and anode packaging precision sealing process and tool device, a bottom sealing glass shell and an anode assembly are sealed through a first tool clamp, and a first sealing assembly is obtained; the central hole of the pipe body and the first sealing assembly are in coaxial butt joint through a second tool clamp and are fixedly connected in an elastic mode; the second tool clamp, the fixed first sealing assembly and the tube body are placed on a workbench of an image measuring instrument together, the image measuring instrument measures the concentricity of the cathode electron gun sleeve, the centering hole and the beam outlet hole, and after centering is completed, the second tool clamp is locked to fix the relative position of the tube body and the first sealing assembly; and on a fixed second tool clamp, argon arc welding spot welding is conducted on the opening of the bottom-sealed glass shell and the welding end face of the tube body, a second sealing assembly of a fixed connection point is formed, then the second sealing assembly is transferred to argon arc welding equipment, the opening of the bottom-sealed glass shell and the welding end face of the tube body are welded in a whole circle, and the centering sealing process is completed.

The present invention relates to an aqueous pharmaceutical suspension composition having from about 0.2% to 20% of a substantially water soluble pharmaceutical active, e.g. acetaminophen; a suspension stabilizing effective amount of xanthan gum and microcrystalline cellulose; an effective amount of taste masking compositions; and water, as well as a process for producing such aqueous pharmaceutical suspensions.

The application discloses an electrode assembly for a high-power pulse xenon lamp and a preparation method thereof, and aims to solve the technical defects of poor reliability and stability of a large mass of traditional electrodes. The electrode assembly is mainly composed of an electrode head, an electrode rod and a lead seat, and the materials of the components are respectively cerium-tungsten alloy, niobium and stainless steel. The electrode head and the electrode rod are stably connected through interference connection of brazing, the electrode rod and the lead seat adopt a multiple connection structure of brazing, mechanical connection and micro interference connection, and the assembled electrode assembly is subjected to degassing, brazing connection and electrode activation treatment in a high-temperature and high-vacuum environment at one time, so that the electrode material pollution caused by repeated heating is effectively avoided. The electrode assembly has simple overall structure, reliable preparation, excellent current passing property, outstanding anti-burning performance, and significantly improved reliability and stability, and meets the long-term stable working requirement and scale production of the high-power pulse xenon lamp.

The application provides an automatic correction tool for a magnetron anode antenna, which is used for correcting an antenna of an anode assembly of a magnetron and comprises a workbench and a track horizontally arranged on the workbench, wherein a sliding die holder is arranged on the track and can slide along the track, and the anode assembly is arranged on the sliding die holder. The automatic correction tool for the magnetron anode antenna can automatically correct the assembled anode assembly in a pipeline mode without any difference. Before correction, whether the anode assembly is qualified or not and whether the antenna is inclined or not, after correction, the anode assembly is definitely qualified and the antenna is definitely vertical and perpendicular to the upper end surface of the anode shell. Compared with traditional manual quality inspection and correction, the automatic correction tool has the advantages of greatly improved correction speed and efficiency, no missed inspection, good correction quality, effectively improved production efficiency and yield of the anode, and further improved production efficiency and yield of the subsequent tube core and magnetron.

The invention belongs to the technical field of X-ray tubes, and discloses an anode assembly and a processing method thereof.The anode assembly comprises a molybdenum reflector plate, a molybdenum rotor assembly and a middle layer, the middle layer is made of metal and arranged between the molybdenum reflector plate and the molybdenum rotor assembly through the processing method, and in the heating process, the molybdenum rotor assembly is heated through the middle layer; the middle layer can effectively absorb and buffer thermal stress and shrinkage stress generated by heating and cooling of molybdenum components on the two sides through plastic deformation of the middle layer, and the risk that microcracks are generated due to stress concentration is greatly reduced. As the chemical affinity of the intermediate layer to impurity atoms is higher than that of a molybdenum material, the intermediate layer can be ensured to preferentially react with harmful impurities in an interface area to form a stable compound in a protective atmosphere or a vacuum environment in the welding process, so that segregation of the impurities at the grain boundary of molybdenum is prevented, and the welding quality is improved. The microstructure and toughness of a molybdenum heat affected zone are remarkably improved, and the grain boundary cracking resistance is enhanced.

This invention discloses an assembly method and assembly fixing structure for an electron gun, belonging to the field of electron gun manufacturing. It includes a base, with a pedestal integrally formed at the center of the upper surface of the base. A turntable is rotatably connected to the outer surface of the pedestal. A slide is symmetrically fixed to the upper surface of the turntable. A cover plate is provided above the pedestal, and a sliding shaft is symmetrically fixed to the outer surface of the cover plate. A rotating sleeve is fitted around the sliding shaft. This invention drives the control grid to rotate 360 ​​degrees horizontally by rotating the turntable. Through gear meshing and threaded lifting, the lifting frame one slides to achieve left and right flipping of the control grid with the right-side rotating shaft as the fulcrum. An operating screw drives the lifting frame two and the movable rod to raise and lower, completing the forward and backward pitch of the control grid with the two sliding shafts as the fulcrums. These three adjustment dimensions are independent and can be linked, enabling precise alignment of the control grid and the shadow grid in all directions without blind spots, meeting the angle matching requirements of high-precision assembly.

This invention relates to the technical field, specifically to an advanced composite target material for X-ray sources and its preparation method, comprising: S1, selecting a substrate and a substrate platen, cleaning the substrate and substrate platen, and then performing vacuum drying; S2, placing the vacuum-dried substrate on a special fixture, sputtering an inner thin film onto the inner surface of the substrate, and then forming an outer thin film onto the outer surface of the substrate using sputtering or chemical vapor deposition, to obtain a coated substrate; S3, vacuum brazing the coated substrate and the vacuum-dried substrate platen together, controlling the brazing temperature within the range of 450-550℃, to obtain the composite target material. This composite target material exhibits excellent performance, effectively balancing heat uniformity and heat dissipation efficiency, and conducting and diffusing the heat concentrated at the focal point in the X and Y directions; it solves the problems of poor heat uniformity and poor heat dissipation in existing target materials.

The utility model provides a filament aim point adjusting tool which is used for adjusting the position of a filament in a cathode unit of an X-ray source, the filament aim point adjusting tool comprises a first mounting seat, a second mounting seat and a display device, the first mounting seat forms a mounting cavity used for fixing the cathode unit, the second mounting seat is connected to the first mounting seat, and the display device is arranged on the second mounting seat. The second mounting seat is positioned on the outer side of the electrode cap and is provided with an adjusting window; the adjusting window corresponds to the position of an adjusting bolt of the cathode unit; the display device is detachably connected to the second mounting base, image information of the electrode cap at the through hole can be amplified and displayed through the display window of the display device, so that the relative position of the lamp filament and the through hole can be obtained, and when the aim point degree of the lamp filament of the cathode unit does not meet the requirement, a user can operate the adjusting bolt through the adjusting window to adjust the aim point degree of the lamp filament. And adjusting the position of the filament in real time until the aim point degree of the filament meets the requirement.

A method of manufacturing a radio frequency (RF) or electron beam structure, comprises forming each layer of multiple layers to be assembled and bonded together with positional alignment, the forming each layer including forming a first via segment of a first particular shape and dimension in the layer at a first location in the layer, such that when the first via segments of the multiple layers are assembled with positional alignment the multiple first via segments align to form a first via; and inserting a first analogous pin into the first via, the first analogous pin being formed based on the first particular shape and dimension of each of the first via segments, such that inserting the first analogous pin into the first via assists in causing the multiple layers to be assembled with positional alignment.

The invention relates to the technical field of semiconductor equipment maintenance, in particular to a vacuum baking platform, a control system, a control method and a storage medium, the vacuum baking platform comprises a lens cone, a lamp filament is arranged in the lens cone, a through hole is formed in the lower end of the lens cone, and the position of the lamp filament in the lens cone can be adjusted to directly face the through hole; the vacuum valve is arranged on the lens cone and located at the through hole; the supporting cylinder is arranged at the lower end of the lens cone in a sealing manner; the Faraday cup is arranged at the bottom of the supporting cylinder and directly faces the through hole, and a diaphragm is arranged on the Faraday cup; the first vacuumizing assembly is communicated with the lens cone; the second vacuumizing assembly and the third vacuumizing assembly are both communicated with the supporting cylinder; and the heating assembly is used for heating the vacuum baking platform. Vacuum can be quickly established, and meanwhile the success rate of filament replacement can be increased.

This invention provides an assembly process for a die assembly, comprising a cathode assembly, an anode assembly, and an exhaust pipe assembly. The assembly process includes the following steps: pressing the magnetic pole K side, pressing the cathode, welding the entire die, leak detection, venting, removing the anodized layer, pressing the antenna cap, die withstand voltage testing, and die aging. During venting, the total venting time is 50-60 minutes, and the heating temperature is 580℃-680℃. The venting process consists of 12 steps, and the pressure change is controlled by time, filament current, and anode voltage. Venting removes air from the die assembly, creating a vacuum. The heating temperature of 580℃-680℃ is used to release gas from the die components and further improves the vacuum level using the principle of gas thermal expansion and contraction. It also prevents melting of the first and second welded positions. The pressure change control through time, filament current, and anode voltage allows for more precise control.

The application provides a correction tool, a correction process and an anode assembly production line for an anode cylinder assembly, the correction tool comprising a correction table and a correction device and a correction die fixed on the correction table, the correction device being used for assembling precision correction of the anode cylinder assembly in cooperation with the correction die, the correction table being movably connected with a first grabbing device which makes a cyclic reciprocating motion on the correction table, the first grabbing device being used for grabbing at least two anode cylinder assemblies at a time, after one of the anode cylinder assemblies is grabbed away from the correction die, another anode cylinder assembly is grabbed and placed on the correction die. Through the correction tool, the correction process and the anode assembly production line for the anode cylinder assembly, the assembling precision of the anode plate after automatic assembly is improved, the stable operation standard of the automatic flow production line is met from two aspects of assembling precision and programmed response, the assembling precision of the anode cylinder assembly is ensured, and then the good product rate of the anode assembly is ensured.

The present invention provides a discharge lamp and a method for manufacturing an electrode for the discharge lamp, which constitutes an electrode capable of obtaining a desired heat dissipation effect. In the electrode (30) of the discharge lamp (10), a structure having two heat dissipation functions, namely a coating (44) and a heat dissipation structure (40) composed of grooves (42), is formed on the side (34S) of the main body (34).

A method for manufacturing vacuum electronic devices (VEDs) in which multiple two-dimensional layers made of various materials are joined together to form one or more VEDs simultaneously, wherein the two-dimensional material layers are machined to include features necessary for device operation so that they form three-dimensional features when assembled and joined to form a three-dimensional structure. The two-dimensional layers are joined together to form a sandwich-like structure. [Effects] This manufacturing process makes it possible to incorporate the metallic, magnetic, ceramic, and other materials required for VED fabrication while maintaining the necessary positional accuracy and a large number of devices per batch.