223 results about "Pure metals" patented technology

The invention discloses a method for preparing an ultrahigh-temperature ceramic coating by an ultrahigh-temperature metal gas source based on a molten salt medium, which comprises the following steps of: mixing low-melting-point salt A, metal fluoride and metal M to obtain a mixture C, putting the mixture C into a first crucible, mixing low-melting-point salt B and metal M to obtain a mixture D, putting the mixture D into a second crucible, putting a carbon base material into a deposition furnace, and performing vacuum drying to obtain the ultrahigh-temperature ceramic coating. Heating the first crucible to melt the mixture C to obtain a melt E, and heating the second crucible to melt the mixture D to obtain a melt F; carrier gas is guided into the first crucible, the carrier gas flow passes through the melt E to form gas flow containing a metal gas source, the gas flow containing the metal gas source is guided into the second crucible, and the gas flow containing the metal gas source is filtered by the melt F in the second crucible to form a pure metal reaction gas source, and finally, a pure metal reaction gas source is introduced into the deposition furnace for deposition of the carbon base material, and the ultra-high-temperature ceramic coating is obtained. The method is easy to operate and low in cost.

The invention belongs to the field of secondary battery manufacturing, and particularly relates to a composite foil current collector welding method.The composite current collector comprises an upper aluminum conducting layer, a middle high-molecular polymer layer and a lower aluminum conducting layer, and the welding method comprises the following steps that S1, micropore machining is carried out on a tab area of the composite current collector, forming a through micropore array; s2, laying a first pure metal foil on the upper surface of the tab area, and laying a second pure metal foil on the lower surface of the tab area; and S3, welding the tab area on which the pure metal foil is laid, so that the first pure metal foil, the upper aluminum conductive layer, the lower aluminum conductive layer and the second pure metal foil form through metallurgical bonding at the position of the micropore. According to the composite foil current collector welding method, ultrasonic energy is highly concentrated on a metal interface at the edge of a micropore, local metallurgical connection is achieved, overall heat input is low, hot melting and carbonization of a middle high-molecular polymer layer are effectively avoided, and an ultrathin metal layer is protected against heat damage.

The invention relates to the field of semiconductor single crystal material preparation processes, and discloses a process method for synergistically recovering indium and germanium from zinc leaching residues and preparing single crystals, which comprises the following steps: mixing a crude extract and a liquid metal solvent, carrying out low-temperature extraction to obtain mixed slurry, carrying out thermal-phase in-situ purification on the mixed slurry, separating a liquid-solid phase by utilizing thermal gradient migration, and carrying out solid-liquid separation on the separated liquid-solid phase. Performing directional solidification and purification to obtain an ultra-clean growth solution; analyzing the indium-germanium proportion of the ultra-clean growth solution, and supplementing pure metal for chemical component calibration; the ultra-clean growth solution with accurate components is used for liquid phase epitaxial growth to obtain single crystals, the thermodynamic principle is used for replacing physical filtration, so that particle heterogeneous nucleation centers are removed, the influence of chemical fluctuation of raw materials is eliminated through a built-in calibration link, and the physically pure growth solution with accurate components is prepared; the industrial preparation of the high-quality single crystal is ensured.

Provided herein are low resistance metallization stack structures for 3D-NAND applications and related methods of fabrication. In some embodiments, thin metal oxynitride nucleation layers are deposited on dielectric material followed by deposition of a pure metal conductor using process conditions that increase non-molybdenum component element content at the oxynitride-dielectric interface. Certain embodiments of the methods described below convert less than all of the metal oxynitride nucleation layer to a pure metal layer, further lowering the resistivity.

The invention discloses an alloy aluminum bar containing rare elements and a preparation technology of the alloy aluminum bar. The alloy aluminum bar comprises, by mass, 1.5%-3.3% of Mg, 0.7%-1.1% of Si, 1.0%-1.7% of Cu, 0.15%-0.3% of Y, 0.07%-0.1% of Er, 0.05%-0.11% of Gd, 0.07%-0.24% of La, 0.08%-0.15% of Zr, 0.07%-0.12% of Ti, 0.05%-0.1% of Sc, smaller than or equal to 0.1% of Fe, 0.35%-0.7% of Mn, 0.2%-0.6% of Ni, smaller than or equal to 0.5% of total impurities and the balance aluminum. The preparation process comprises the following steps: burdening: accurately weighing a high-purity aluminum ingot, Al-Y, Al-Zr, Al-Ti intermediate alloy and pure metal according to the components; smelting: melting at 720-750 DEG C, preserving heat, and protecting by argon; cooling to 740-720 DEG C, and adding an intermediate alloy; a refining agent is added for degassing and deslagging, and slagging-off is conducted after standing is conducted for 30 min; casting: the temperature is 720-740 DEG C, the casting speed is 120-200mm / min, the strength of cooling water is 0.06-0.15 MPa, the water temperature is 10-30 DEG C, and online degassing is performed outside the furnace so that the hydrogen content is less than or equal to 0.15 cm / 100g Al; through scientific proportioning of conventional alloy elements such as Mg, Si, Cu and Mn and various rare elements such as Y, Er, Gd, La, Sc, Zr and Ti, the synergistic strengthening effect of the conventional elements and the rare elements is achieved, and the performance bottleneck of a traditional aluminum alloy is effectively broken through.

The invention provides a preparation method of high-purity antimony, and belongs to the technical field of high-purity metal materials. The preparation method of the high-purity antimony comprises the following steps that a crude antimony raw material is added into a cylindrical container, then the cylindrical container is placed in an induction heating coil, and under the conditions that the induction power is 30-150 kW, the change frequency is 2-15 kHz and the rotating eddy current is in the clockwise direction, the crude antimony raw material is subjected to induction melting, and gathering the impurities at the edge, parallel to the section circle of the cylindrical container, of the molten antimony, cooling, and removing the impurities to obtain the high-purity antimony. According to the preparation method of the high-purity antimony, the purity of the crude antimony raw material can be rapidly and effectively improved.

The invention relates to a forming method for composite electroplating of an MEMS (Micro Electro Mechanical System) probe. Structural patterns of a needle tip or / and a needle body are / is photoetched through a micro-electro-mechanical process, the needle tip or / and the needle body is / are formed through electroplating of a composite plating solution after pretreatment, the composite plating solution is obtained by mixing a metal base solution and a turbid liquid, the metal base solution is a nickel base solution and / or a rhodium base solution, and the turbid liquid is a nickel base solution and / or a rhodium base solution. The suspension is formed by suspending nano-powder in water through a dispersing agent. Compared with the prior art, the technology provided by the invention has the following advantages that the MEMS process technology is combined with the composite plating solution to be used for various probe structures, and the performance of the prepared material is greatly improved compared with that of a pure metal coating; the composite plating solution prepared from the plating solution and the second-phase particles is high in stability, and the electroplating process is easy to operate; the nickel-based composite plating solution can be used for obtaining a main body material with higher hardness, better wear resistance and better flexural property; the rhodium-based composite plating solution is used for preparing a needle point material, has higher hardness and wear resistance, and improves the brittle fracture problem.

The application provides a high-throughput high-entropy alloy component design method, comprising the following steps: S1) preparing an initial sample of pure metal or alloy; S2) preparing a master alloy ingot according to the high-entropy alloy component; S3) assembling the initial sample at the bottom of a mold shell, fixing the mold shell on a directional solidification furnace pulling device, and exposing a part of the initial sample from the liquid level of a cooling tank, and immersing the remaining part into the cooling liquid in the cooling tank; S4) assembling the master alloy ingot on the upper part of an induction dripping system of the directional solidification furnace, and turning on the heating power supply of the directional solidification furnace; S5) turning on the induction dripping system until the master alloy ingot is melted and dripped into the mold shell, and then cooling and solidifying after heat preservation. The high-throughput sample component prepared by the method provided in the application is uniform and linear, and the component screening precision is higher; the high-throughput sample with single-element or multi-element coupling change can be efficiently prepared, the performance data reliability is higher, and the industrial application potential of the alloy is greater.

The invention relates to a method for measuring the thickness of an intermetallic compound of a copper-clad aluminum composite material, and relates to the field of metal material analys.The thickness measuring method comprises the steps that an intermetallic compound sample at the composite interface of a copper-clad aluminum sample is taken, the hardness of the interface is obtained through a nanoindenter, and main constituent compounds of the interface are confirmed through hardness comparison; the method comprises the following steps: cutting a copper-clad aluminum sample to obtain a first sample which contains a composite interface and has a regular shape, testing to obtain the resistance of the first sample, obtaining a first mathematical relationship according to a resistance superposition model, cutting the first sample into a second sample with equal length, and weighing to obtain a second mathematical relationship according to a mass superposition model; and obtaining the thickness of the intermetallic compound according to the two mathematical relationships. According to the method, the characteristic that the electrical property of the intermetallic compound is poor is utilized, the electrical property of the composite material is tested, the electrical property difference between the composite material and pure metal is compared, the proportion of the intermetallic compound is quantitatively given through joint calculation, and the thickness of the intermetallic compound can be rapidly measured.

This invention relates to a cold cathode X-ray inspection system and method with eddy current detection function, used for defect detection and evaluation of composite materials with conductive and magnetic panels and pure metal materials of a certain thickness. The inspection system includes a cold cathode X-ray instrument, a DR receiving panel, and a laptop computer. In addition to the cold cathode X-ray detection board, the mainboard of the cold cathode X-ray instrument also has an eddy current detection board. The eddy current detection board and the cold cathode X-ray detection board share the built-in power supply unit and operation unit of the cold cathode X-ray instrument. A transparent flexible panel is added to the photosensitive element layer of the DR receiving panel. A transparent detection coil made of metal coating technology with an array arrangement is set on the transparent flexible panel. During the inspection, the cold cathode X-ray image of the inspected workpiece and the eddy current detection signal on the surface of the inspected workpiece can be acquired simultaneously. By comparing, fusing, and analyzing the two image signals, a complete and accurate inspection result is obtained.

The utility model belongs to the technical field of counter-pressure casting, and particularly relates to a counter-pressure casting riser tube electromagnetic induction filtering device and system, which comprises a middle tube, an induction heating coil, a heating coil embedding block, a filtering medium and a riser tube, the filtering medium is arranged inside the riser tube, and the induction heating coil and the heating coil embedding block are arranged outside the riser tube. And the intermediate pipe covers the induction heating coil embedded block. Through structural optimization of the riser tube, impurities at the bottom of the molten metal container can be prevented from being involved into pure molten metal in the molten metal suction process, and filtering of original impurities is guaranteed to the maximum extent. Through the synergistic effect of electromagnetic induction and the magnetic filtering medium, magnetic and non-magnetic impurities in molten metal can be effectively filtered, the purity of the molten metal is remarkably improved, defects in a casting are reduced, and the mechanical property and reliability of the casting are improved.

The invention discloses a light durable liquid cooling plate based on an aluminum foil material and a manufacturing process thereof. The manufacturing process comprises the steps of preparing a material sheet, forming a runner through cold stamping, folding and sealing and the like. The liquid cooling plate is made of a three-layer composite material composed of polypropylene (PP), aluminum foil and nylon, and compared with a traditional pure metal liquid cooling plate, the liquid cooling plate has the advantages of being soft in attachment, good in surface deformation and free of being coated with heat dissipation glue, and the heat dissipation effect is remarkably optimized. The PP layer is resistant to bacteria and corrosion, so that the service life of the liquid cooling plate is prolonged to 10-15 years, and the problems that a traditional metal plate is prone to corrosion, liquid leakage and biological growth are solved. The design is light in weight, low in cost, particularly suitable for mobile electronic equipment such as aircrafts and electric automobiles, high in automation degree of the production process and suitable for batch manufacturing. Due to the ductility and convenient sealing characteristic of the composite material, the liquid cooling plate is more stable in structure and reliable in packaging, and the modern requirements for high efficiency, light weight, durability and heat dissipation are fully met.

The application provides a purification method of crude tellurium, and belongs to the field of high-purity metal preparation. The application provides a purification method of crude tellurium, which comprises the following steps: rotating crystallization is carried out by immersing a crystallizer into a tellurium melt obtained by melting the crude tellurium; and the temperature of the crystallizer is lower than the temperature of the tellurium melt during the rotating crystallization. The interface shear force generated by the rotating of the tellurium melt realizes the thinning of the solute boundary layer of the liquid-solid interface, and the impurities are forced to be removed from the boundary layer, so that high-purity tellurium is crystallized; the rotation of the crucible promotes the increase of the temperature gradient of the liquid phase zone near the liquid-solid interface, and the increase of the temperature gradient makes the crystallization faster, so that the purification efficiency is improved. The results of the examples show that the purification method provided by the application can purify 4N tellurium to 99.9999% in one step. Moreover, the process flow of the application is simple, and no waste gas, waste water and waste residue are generated.

The application discloses a rare earth micro-alloyed Al-Fe-Si-based multipurpose aluminum alloy wire and a preparation method thereof, and relates to the technical field of metal material processing and manufacturing. The wire composition formula is Al-xFe-ySi-zRE-mCu-nMg-pZn, wherein 0.3<=x<=0.55, 0.15<=y<=0.3, 0.1<=z<=0.35, m<=0.2, n<=0.2, p<=0.2, and x>=y. The wire is prepared from pure aluminum and intermediate alloy or pure metal as raw materials through a 'cross deformation two-stage aging' and 'twisting-extruding-drawing composite cold deformation' process method matched with the alloy formula. The application can develop Al-Fe-Si-based aluminum alloy wires with different characteristics, which are respectively suitable for high-conductivity-high-strength, high-conductivity-high-plasticity and high-conductivity-high-strength-high-plasticity application scenarios.

This utility model discloses a modular electrolytic reaction tank for preparing high-purity metallic magnesium, belonging to the field of metallic magnesium reaction tanks. It includes a reaction tank body, with a cover plate fixedly connected to the upper surface of the body by multiple bolts. A conveying pipe is fixedly connected to the left side of the upper surface of the cover plate. A collection box is fixedly connected to the right side of the lower inner surface of the reaction tank body. A through-type collection port is opened on the upper left side of the inside of the collection box. This utility model achieves efficient and rapid separation through the unique structure of the collection box and related components. When the liquid magnesium reaches a certain thickness, the level gauge detects a signal, the electric push rod is activated, pushing the sliding plate two. Through the gas box and gas delivery hole, the sliding plate one moves the baffle one upward, opening the collection port. Liquid magnesium quickly flows into the collection box, greatly reducing the residence time of liquid magnesium in the reaction tank body, effectively reducing impurity dissolution, and improving the purity of metallic magnesium and product quality.

A method and apparatus for regenerative hydrogen separation at high temperatures for production of pure hydrogen gas. Pure metals and metallic alloys are used at high temperatures to maximize the catalytic effect for hydrogen dissociation, hydrogen diffusion and hydrogen sorption capacity. Metallic materials are used that can selectively sorb hydrogen at high temperatures. These materials are integrated into equipment designs and process configurations to process a stream of hot mixed process gases to produce a stream of pure hydrogen product at the desired system temperature. The invention can be used to enhance the performance of existing plants such as steam methane reforming applications by increasing the conversion to hydrogen, eliminating or reducing the number of shift converters, providing pure hydrogen product, and enhancing the overall energy efficiency. In some embodiments, the hydrogen sorption system is built inside a hydrogen production reactor, enhancing the chemical equilibrium inside the reactor, to achieve higher conversion and hydrogen yields.

The invention provides a thermocouple verification furnace which is a vertical verification furnace and comprises a furnace core assembly, a one-way atmosphere protection device and a thermocouple positioning device. Through the design of the heat insulation layer, the highest temperature can reach 1800 DEG C, the upper limit of 1600 DEG C of a traditional high-temperature verification furnace is broken through, platinum and other high-melting-point materials can be melted, verification is carried out when the temperature exceeds 1600 DEG C, calibration is carried out through a fuse method by utilizing pure metal materials, and the calibration precision is improved; a vertical furnace is adopted to solve the problem of high-temperature deformation in the gravity direction of a furnace tube of a common horizontal thermocouple verification furnace; in the verification process, the whole process is protected by using the protective gas, so that the detected thermocouple is prevented from being oxidized under the high-temperature verification condition.

The invention relates to a method for preparing high-purity germanium through reduction of hydrogen and germanium tetrachloride, and belongs to the technical field of high-purity metal material preparation. The method comprises the following steps: introducing vaporized germanium tetrachloride and preheated hydrogen from the top of a vertical quartz reaction tube, and mixing; the mixed gas downwards passes through a reaction zone, a concentric quartz ring tube bundle is arranged in the reaction zone, and the reaction zone is divided into an upper high-temperature reaction zone (1000-1150 DEG C), a middle medium-temperature deposition zone (600-850 DEG C) and a lower high-temperature melting zone (940-1000 DEG C) in the gas flow direction; gaseous germanium is condensed in the ring tube bundle in the middle deposition area to form solid germanium, and the solid germanium grows downwards to the lower melting area to be melted into liquid to drop and be collected; and treating the tail gas to recover germanium tetrachloride and hydrogen for recycling. Through the design of the annular tube bundle carrier and the temperature field, the deposition-melting dynamic process is achieved, reaction balance is broken, and the conversion per pass of germanium tetrachloride is increased to 70% or above.

The invention discloses an impurity separation device and an impurity separation method based on mass-to-charge ratio difference, and relates to the technical field of metallurgical separation, metal purification and thin film deposition, the impurity separation device comprises: a vacuum system for providing a vacuum or inert gas environment; the excitation device is used for exciting the to-be-purified raw material and generating a mixed ion beam, and the excitation device is provided with an ion beam outlet; the separation device is connected with the vacuum system, a single electric field area and an electromagnetic composite field area are arranged in the separation device side by side, and the mixed ion beam enters the single electric field area through the ion beam outlet to be accelerated and then enters the electromagnetic composite field area to generate deflection and separation to form a plurality of single-component ion beams; any single-component ion beam returns to the single electric field area after deflection and is decelerated; and the collecting device is arranged in the separating device and used for collecting the decelerated single-component ion beams, impurity elements can be separated through a single method, the separating process is simple, efficiency is high, and preparation of ultra-pure metal and alloy materials is achieved.

This invention discloses iron-doped copper hierarchical nanosheets, their preparation, and their application in the electro-oxidation of formaldehyde for hydrogen evolution, relating to the field of hydrogen energy technology. The preparation method of the iron-doped copper hierarchical nanosheets includes the following steps: using a copper mesh as a substrate, in-situ growth of Cu(OH)₂ nanowire arrays is performed by chemical oxidation; the Cu(OH)₂ nanowires undergo ion exchange in an aqueous solution of ferric nitrate to form a hierarchical Fe-Cu(OH)₂ structure. x Nanosheets; Fe-Cu(OH)₂ calcined at high temperature in air atmosphere. x Nanosheets are transformed into Fe-CuO nanosheets; the Fe-CuO nanosheets are then electrochemically reduced to Fe-Cu nanosheets, resulting in an Fe-Cu nanosheet array grown on a copper mesh. The Fe-Cu nanosheet array electrode in this invention exhibits superior formaldehyde electro-oxidation hydrogen evolution performance and significantly broadens the potential window for the electro-oxidation of pure Cu metal formaldehyde, making it suitable for low-energy-consumption electrochemical hydrogen production from formaldehyde.

The present application relates to a kind of metal matrix composite prepared by friction stir processing method, including the mixing of metal matrix composite reinforcement and substrate powder, according to the size of stir pin and shaft shoulder in the stir head of friction stir equipment, using milling cutter to open the groove on pure metal mold, the width is greater than the diameter of stir pin, the depth is greater than the length of stir pin;Reinforcement and substrate powder mixture is added to the groove and is maximized compaction, in the processing area of special friction stir welding machine, the center of stir pin of stir head is aligned with the center of groove, is prepared under the processing scheme of multiple passes variable stir head speed, obtains metal matrix composite at the groove of composite plate processing area, the obtained metal matrix composite reinforcement is uniformly distributed, and the mechanical and friction and wear performance is excellent.The present application can automatically prepare a variety of different kinds of metal matrix composite, without determining specific process parameters for different kinds of metal and reinforcement test, and is widely applicable.

The invention relates to the technical field of high-purity metal sputtering target materials, in particular to an ultra-fine grain high-purity tantalum target blank and a preparation method thereof. The preparation method of the ultra-fine grain high-purity tantalum target blank comprises the following steps that an extrusion die with a gradient die hole length-diameter ratio is adopted for conducting a multi-round extrusion process on a high-purity tantalum cast ingot, the high-purity tantalum cast ingot obtained after each round of extrusion is subjected to vacuum annealing, and the high-purity tantalum target blank is obtained; carrying out a cold rolling process on the high-purity tantalum target blank; and carrying out vacuum graded annealing on the tantalum blank subjected to the cold rolling process. According to the preparation method of the ultra-fine grain high-purity tantalum target blank, through precise cooperation of a series of innovative processes, the ultra-fine grain high-purity tantalum target blank which is finer and even in distribution compared with a conventional process is obtained.

This invention belongs to the field of asbestos tailings utilization technology, specifically disclosing a process for the enhanced reduction of serpentine tailings to prepare metallic magnesium. The method includes: crushing and grinding serpentine tailings to obtain mineral powder; pre-treating and activating the powder with heat; adding a dehydroxylation agent; and pressing the powder into pellets; placing the pellets in a reactor and heating them to 600-750℃ for dehydroxylation treatment to generate hydrogen gas; evacuating the reactor and heating it to 1080-1200℃ for a reduction reaction, with the generated magnesium vapor collected by a condenser; and subjecting the remaining residue to magnetic separation and acid washing to obtain iron oxides and silicon-rich amorphous powder. This invention achieves the cascade utilization and self-reduction of magnesium-silicon-iron from serpentine tailings. Through a closed-loop design of "using waste to produce hydrogen and using hydrogen to extract magnesium," the tailings are converted into high-purity metallic magnesium and multiple high-value by-products, resulting in significant environmental and economic benefits.

A platinum-based composite material with low residual gas content and a preparation method thereof belong to the technical field of platinum-based composite materials, and the preparation method comprises the following steps: S1. Pt, Zr and Y pure metal raw materials are subjected to smelting under vacuum conditions, and then Pt-Zr-Y alloy ingots are obtained by pouring; S2. The Pt-Zr-Y alloy ingots prepared in S1 are made into alloy particles, and the alloy particles are made into alloy powder; S3. The alloy powder prepared in S2 is soaked in high-purity water, then hydrogen peroxide solution is added for activation, and the mixture is sealed and placed for a period of time, then anhydrous ethanol is added and stirred uniformly, and then dried to obtain pre-prepared alloy powder; S4. The pre-prepared alloy powder prepared in S3 is placed in a pure oxygen atmosphere for heating and heat preservation oxidation treatment to obtain oxidized pre-prepared alloy powder; S5. The oxidized pre-prepared alloy powder prepared in S4 is subjected to vacuum sintering treatment to obtain a platinum-based composite material blank; and S6. The platinum-based composite material blank prepared in S5 is subjected to vacuum hot pressing treatment to obtain a platinum-based composite material.

The invention discloses a boron carbide composite ceramic tool bit and a preparation method thereof. The boron carbide composite ceramic tool bit comprises a tool bit body and a welding transition body, the tool bit body is internally provided with a boron carbide ceramic framework with a three-period minimal curved surface topological structure, three-dimensional communicating holes of the framework are filled with a metallic bond and diamond abrasive particles, and the welding transition body is a pure metallic bond transition layer. A hard wear-resistant phase is arranged on the outer surface of the combination body. The method comprises the following steps: constructing a boron carbide ceramic skeleton with a pore surface micro-nano diversion trench through additive manufacturing, and depositing an electromagnetic sensitive phase; injecting the powder into the three-dimensional communicated pores and assembling a green body; applying mechanical oscillation pressure and a high-frequency alternating electromagnetic field at the sintering temperature, and inducing an in-situ metallurgical reaction by utilizing local joule heat generated by a skin effect to finish densification sintering; and a surface hard wear-resistant phase is generated through chemical heat treatment or component in-situ reaction. Compact interlocking of the internal structure is achieved, the service life of the tool bit is prolonged, and the welding strength of the tool bit is improved.

The invention relates to a preparation method and application of high-purity vanadium, and the preparation method comprises the following steps: 1) carrying out hydrotreating on a metal vanadium raw material at 300-700 DEG C to induce grain boundary cracks; 2) pickling the hydrotreated raw material to remove Fe and Cr metal impurities at the grain boundary; 3) drying the pickled raw materials at a drying temperature of 80-150 DEG C; and (4) the dried anhydrous raw material is subjected to high-vacuum electron beam melting, O and N interstitial impurities in vanadium are removed through hydrogen cooperation, Fe and Cr metal impurities in vanadium are deeply removed, and a high-purity metal vanadium ingot is obtained. According to the method, representative metal impurity iron and interstitial element oxygen in high-purity vanadium are effectively removed, and a novel hydrogenation-acid pickling-hydrogen synergistic EB smelting coupling technology is provided and used for preparing high-purity vanadium raw materials and vanadium ingots so as to meet the requirements of the fields of magnetron sputtering target materials and the like for high-purity metal.

The invention discloses a zero-discharge device and process for double-layer liquid sealing, redundant chlorine capturing, siphon pure discharge and closed-loop electrolysis of metal sodium, and belongs to the technical field of metal sodium preparation. The device comprises a furnace body, an oxygen-isolating anti-explosion inert liquid seal layer, a chlorine capture liquid seal layer, a liquid metal sodium layer, a molten sodium chloride electrolysis layer, a siphon type pure sodium discharge structure and an automatic feeding control system, the double-layer liquid seal is adopted to realize oxygen isolation, explosion prevention and chlorine in-situ absorption, the chlorine absorption capacity is designed to be more than two times of the maximum chlorine yield, and no leakage is ensured; liquid sodium is driven by lifting the liquid level during feeding to trigger siphon discharge, only pure metal sodium is produced, entrainment is avoided, and the purity is high; reaction byproducts are converted into raw materials to be recycled, no waste gas, no waste residues and no waste liquid exist in the whole process, and the byproduct water vapor can be condensed into purified water to be utilized. The device is simple in structure, intrinsically safe, high in automation degree, environmentally friendly and suitable for continuous production of high-purity metal sodium.

The invention discloses a microwave and millimeter wave large-frequency-ratio dual-band common-structure antenna, a millimeter wave antenna and a microwave antenna are combined through a radiator structure multiplexing method, and an external material is metal. The millimeter wave antenna is in an array antenna form of a pure metal structure and comprises sub-radiation structures symmetrically distributed in the metal and a feed structure of the sub-radiation structures. The millimeter wave feed structure is provided with one input port and output ports with the same number as that of the radiation array elements, and equal-amplitude and equal-phase excitation is provided for all the radiation array elements. The microwave antenna is composed of a microwave radiation structure located in the middle of the millimeter wave array and a feed structure connected from the metal side face. The microwave feed structure avoids the millimeter wave array antenna, and mutual influence is avoided. According to the invention, while complex antenna structures of different frequency bands are integrated, good isolation is realized, the antenna has the advantages of large frequency ratio, wide working frequency band, high radiation efficiency and the like, the isolation between the two working frequency bands is good, and the antenna is a good antenna alternative scheme for a future communication system.

The utility model discloses a water cooler based on a metal purification lining. The water cooler comprises a water supply heat dissipation unit and a metal purification lining unit. The water supply heat dissipation unit comprises a water supply end, a new water ring pipe, a water cooler connected with the new water ring pipe, a water return ring pipe and a water drainage end; water enters the new water ring pipe through the water supply end, is subjected to heat exchange through the water cooler and is finally discharged through the water return ring pipe and the water discharge pipe. A snakelike water cooling pipe is laid in the water cooler and used for increasing the heat conduction amount; the metal purification lining unit comprises a purification container, the water cooler is embedded in the purification container, and the water cooler comprises a water cooler cold surface and a water cooler hot surface. The lining water cooler based on metal purification is provided in a copper and steel combination mode, under the condition that it is ensured that high-purity metal is not polluted in the metal purification process, the input cost of technological equipment is greatly reduced, the structural stability of the water cooler lining is improved, and the stability is improved.

The present invention provides a method and apparatus for depositing metal. [Solution] This specification provides low-resistance metallization stack structures and related manufacturing methods for logic and memory applications. In some embodiments, a thin metal oxynitride or metal nitride nucleation layer is deposited thereafter, followed by the deposition of a pure metal conductor. The nucleation layer is amorphous and serves as a template for large pure metal film grain growth and low resistivity. Furthermore, certain embodiments of the methods described later convert almost all or all of the metal oxynitride nucleation layer into a pure metal layer to further reduce resistivity.