36results about How to "Improve organizational structure" patented technology

The invention discloses lanthanum-cerium mixed rare earth corrosion-resistant twisted steel with yield strength of 400MPa. The lanthanum-cerium mixed rare earth corrosion-resistant twisted steel comprises the following elements: 0.10 to 0.20 percent of C, 0.25 to 0.80 percent of Si, 0.90 to 1.60 percent of Mn, 0.020 to 0.045 percent of V, 0.003 to 0.010 percent of Ti, less than or equal to 0.010 percent of P, less than or equal to 0.010 percent of S, 0.25 to 0.65 percent of Ni, 0.25 to 0.70 percent of Cr, 0.10 to 0.18 percent of RE, less than or equal to 0.20 percent of Cu, less than or equal to 0.004 percent of O, less than or equal to 0.006 percent of N and the balance of Fe and inevitable impurities. The invention further discloses a production method of the lanthanum-cerium mixed rare earth corrosion-resistant twisted steel with the yield strength being 400 MPa. The production method comprises the working procedures of converter smelting, argon blowing refining, LF furnace refining, continuous casting and rolling, and the lanthanum-cerium mixed rare earth reinforced alloy cored wire and the silicon-calcium wire are fed into molten steel in the argon blowing refining process. The components, inclusions and mechanical properties of the produced 400 MPa-grade lanthanum-cerium mixed rare earth steel bar completely meet the technical requirements of the steel bar, the quality control requirement is met, and the 400 MPa-grade lanthanum-cerium mixed rare earth steel bar has the advantages of being high in strength, high in plasticity, resistant to corrosion and the like. The service life of the steel is prolonged, coating and galvanization are avoided, the burden of environmental protection is relieved, and reasonable application of resources is facilitated.

The invention relates to the technical field of welding, in particular to a lead-free solder composition and a preparation method thereof. The composition comprises brazing filler metal and a brazing flux, wherein the brazing filler metal comprises 55 to 65 parts of copper, 30 to 40 parts of zinc, 0.5 to 1 part of silver, 0.1 to 1 part of tin, 0.1 to 0.5 part of nickel, 0.02 to 0.15 part of lanthanum, 0.03 to 0.15 part of cerium and 0.05 to 0.2 part of indium; the brazing flux comprises 18-22 parts of borax, 13-17 parts of boric acid, 25-32 parts of a potassium fluoride and potassium fluoborate compound, 3-5 parts of calcium fluoride, 12-16 parts of aluminum oxide and 8-11 parts of magnesium oxide. The lead-free solder composition does not contain toxic lead elements, pollution to the environment and the ecological system is little, the wettability, corrosion resistance, strength, stability and the like of the lead-free solder composition are improved, and the welding quality is comprehensively improved. According to the preparation method, uniform distribution and accurate control of the brazing filler metal and the brazing flux are guaranteed, stability and consistency of product quality are guaranteed, and the preparation method is easy and convenient to operate and suitable for mass production.

The invention relates to the technical field of copper alloy strips, and discloses a vehicle-mounted connector copper alloy strip which comprises the following components in percentage by mass: 0.04 to 0.1 weight percent of Y, 1.5 to 3.5 weight percent of Sn, 0.02 to 0.08 weight percent of P, 0.5 to 2.5 weight percent of carbon nanostructure X and the balance of copper and inevitable impurities, wherein the carbon nano structure X is a compound of a carbon nano tube and fullerene, and the mass ratio of the carbon nano tube to the fullerene is (2-4): 1; the invention also discloses a preparation method. According to the invention, through the comprehensive advantages in the aspects of conductivity and corrosion resistance, the electrical connection function can be stably and reliably realized in a vehicle-mounted connector, powerful hardware support is provided for the intelligent and electric development of an automobile, and the adaptability and safety of the automobile under different working conditions are enhanced; and the maintenance cost of the automobile is reduced, and the downtime caused by faults is shortened.

The invention provides a magnesium alloy surface high-wear-resistance micro-arc oxidation film layer and a preparation method thereof. The preparation method comprises the following steps: S1, pretreatment of a magnesium alloy matrix: grinding and polishing the magnesium alloy matrix, and then cleaning and drying the magnesium alloy matrix; s2, preparing a silicate alkaline electrolyte: dissolving Na2SiO3, KF and NaOH in deionized water at room temperature, performing ultrasonic treatment until the Na2SiO3, the KF and the NaOH are completely dissolved, then adding the TiO2 nano-particles, and continuing ultrasonic treatment until the TiO2 nano-particles are uniformly dispersed in the deionized water to obtain the silicate alkaline electrolyte; and S3, micro-arc oxidation treatment is conducted, specifically, stainless steel serves as a cathode, the pretreated magnesium alloy matrix serves as an anode, the cathode and the anode are put into a silicate alkaline electrolyte, flushing and drying are conducted after micro-arc oxidation treatment, and then the high-abrasion-resistance micro-arc oxidation film layer is formed on the magnesium alloy sample. The structure, the structure and the performance of the magnesium alloy micro-arc oxidation film layer are improved by adding the nano TiO2 particles into the electrolyte, so that the wear resistance of the film layer is improved.

The invention relates to the field of casting, and discloses a production method of green sand as-cast high-plasticity nodular cast iron QT450-18, which comprises the following steps of: preparing pig iron, waste steel and foundry returns according to a certain proportion, and preparing the green sand as-cast high-plasticity nodular cast iron QT450-18 by using auxiliary materials such as a silicon carbide pretreatment agent, a high-temperature graphitization carburant, a rare-earth magnesium silicon iron nodulizer, a silicon barium inoculant and a silicon strontium inoculant. And purity and component stability of molten iron are ensured. In the smelting process, purification and adjustment are carried out through accurate temperature control and segmented addition of auxiliary materials, then spheroidizing is carried out through a pouring method, and the microstructure of a casting is optimized through ladle-to-ladle inoculation and stream inoculation. The final casting has excellent mechanical properties, including tensile strength greater than or equal to 440 MPa, yield strength greater than or equal to 300 MPa, elongation greater than or equal to 16%, and V-shaped notch normal temperature impact absorption energy greater than or equal to 8 J. The method is simple and convenient to operate, high in production efficiency and suitable for large-scale industrial production.

The invention discloses a knowledge retrieval method and device applied to large-model knowledge questions and answers. The method comprises the following steps: sorting and cleaning knowledge data and converting the knowledge data into knowledge texts; the knowledge text is segmented into independent knowledge points, corresponding titles, abstracts, keywords and the like are marked, and the relation between the knowledge points is determined; constructing a knowledge full-text retrieval library and a knowledge graph; identifying knowledge points in the retrieval problem, retrieving corresponding candidate knowledge points, calculating the similarity between the candidate knowledge points and the knowledge points in the retrieval problem, and screening based on the similarity to obtain a knowledge point set; the knowledge points with correlation are grouped according to the minimum adjacency graph, the knowledge points without correlation are grouped independently, and the grouped knowledge points and the independent knowledge points are sorted and combined according to the maximum spanning tree mode; preparing a proper prompt template for the question big model, nesting the sorted and combined knowledge points into the template, and generating a prompt context; and inputting the prompt context into the questioning big model, and sorting out a final retrieval result by utilizing the reasoning, induction and summarization capabilities of the questioning big model.

The present invention discloses an intelligent archive management system and method based on big data, and relates to the technical field of archive management. The intelligent archive management method based on big data ensures that only authorized personnel can upload files through identity authentication, and the upload feasibility check avoids the storage of non-compliant archives. Intelligent classification and dynamic retrieval further optimize the organizational structure of archives, so that the archive library remains up-to-date and most relevant. At the same time, automatic backup and removal of outdated or no longer needed archives reduce the storage burden and ensure the integrity and accessibility of data. Intelligent classification and regular cleaning mechanisms help organizations effectively manage storage space and reduce unnecessary storage costs, which can effectively improve the efficiency and security of archive management.

The invention discloses a FeCoNbW alloy target material and a hot-pressing preparation method thereof, and belongs to the technical field of magnetic storage target material manufacturing. The method comprises the following steps: carrying out vacuum melting on Fe blocks, Co blocks and Nb blocks, and then carrying out gas atomization to obtain FeCoNb alloy powder; the FeCoNbW alloy target material is obtained by mixing the FeCoNbW alloy powder and W powder, and then sequentially carrying out sheathing, die filling, degassing, hot pressed sintering and machining on the FeCoNbW alloy powder and the W powder. The W powder is added into the FeCoNb alloy powder to be combined into mixed powder of target components, the FeCoNb alloy powder forms metal alloy due to the components, demagnetization can be achieved, and the final magnetic permeability of the target material is improved. And then target blank sintering is conducted in a vacuum hot pressing sintering mode, the problems that components are not uniform, the target blank cracks during conventional plastic deformation and the magnetic permeability is low are solved, and the yield of the FeCoNbW alloy target is effectively increased.

The invention relates to a method for improving the thermal conductivity of an aluminum-silicon composite material, which is characterized in that alpha-Al crystal grains and a silicon phase of an aluminum-silicon alloy are regulated and controlled through a high-temperature solid solution and low-temperature aging process, the solid solubility of a silicon element in a collective body is reduced, and the thermal conductivity is improved. The silicon phase is spheroidized through high-temperature solution treatment, the aluminum-silicon two-phase interface density is reduced, meanwhile, growth of aluminum matrix crystal grains is promoted through high temperature, and the crystal boundary density of an aluminum matrix is reduced; and subsequent low-temperature aging treatment promotes sufficient diffusion and precipitation of silicon elements, lattice distortion of an aluminum matrix is reduced, and the heat conductivity of the aluminum-silicon alloy is further improved.

The embodiment of the invention discloses a high-strength corrosion-resistant CuNi10Fe1Mn alloy copper pipe and a preparation method thereof, relates to the technical field of non-ferrous metal material manufacturing, and aims to solve the technical problem of poor production in the prior art. According to the high-strength corrosion-resistant CuNi10Fe1Mn alloy copper pipe, the content of Ni ranges from 9.0% to 11.0%, the content of Fe ranges from 1.0% to 2.0%, the content of Mn ranges from 0.5% to 1.0%, the sum of impurity elements does not exceed 0.2%, and the balance is Cu.

The invention relates to the technical field of heat treatment of metal materials, in particular to a heat treatment device, system and process for metal wires. The heat treatment device comprises a pay-off unit, a sealed cabin and a take-up unit which are sequentially and coaxially arranged in the advancing direction of the metal wires, and multiple sets of induction heating coils with independent temperature control are adopted; and the output power of the high-frequency power supply is adjusted in real time by combining closed-loop feedback of the non-contact temperature measuring device and the first temperature controller, so that the full-length uniform heating of the wire rod is ensured. By arranging multiple stages of independent controllable atomization spraying rings and gas-liquid mixed supply subunits, the mixing proportion of inert gas and cooling liquid of each stage of atomization spraying ring is dynamically adjusted through a proportion adjusting valve, programmed accurate control over the cooling rate is achieved, and therefore the organization structure of the metal wire is optimized. Meanwhile, the inert atmosphere replacement unit is arranged in a matched mode, oxidation and decarburization are eradicated, and by the adoption of the structure, high-efficiency automatic production is achieved while the quality is guaranteed.

According to the hippocampus freeze-drying intelligent temperature control system and method, temperature distribution information in hippocampus freeze-drying equipment after each gradient temperature increase is determined according to all response temperatures, and the temperature distribution uniformity of hippocampus in the freeze-drying sublimation process is determined according to all the temperature distribution information. Determining the sublimation rate of the ice crystals in the hippocampus in the freeze-drying sublimation process based on the distribution uniformity and all the feedback pressures; when the sublimation rate is lower than a preset sublimation threshold value, determining the fluctuation entropy of the temperature impact on the hippocampus based on the gradient temperature increase value and the response temperature gradient between the response temperatures, and determining the thermal stability temperature of the hippocampus in the freeze-drying sublimation process according to the fluctuation entropy, the sublimation rate and the pre-freezing temperature; and carrying out dynamic adaptive adjustment on gradient temperature increase of the hippocampus in the subsequent freeze-drying sublimation process based on the thermal stability temperature. Based on the scheme, dynamic adaptive adjustment of the temperature in the sublimation process of the hippocampus can be achieved, and therefore the freeze-drying sublimation quality of the hippocampus can be improved.

This invention relates to the field of steamer technology and discloses a glutinous rice cake preparation device and its preparation method. The glutinous rice cake preparation device includes: a rice cake raw material steamer, with several sets of dough steaming trays arranged longitudinally inside the rice cake raw material steamer. The dough steaming trays include: a dough steaming tray body, with a lifting plate movably arranged inside it. Several oscillating needle plates are arranged in an array on the lifting plate, and each oscillating needle plate is rotatably connected to the lifting plate; an array of rotating disks, each of which is correspondingly arranged above the oscillating needle plates and the two are concentrically aligned; two air-injecting needles are fixedly arranged on each set of oscillating needle plates. When the dough steaming tray body containing dough is placed in the rice cake raw material steamer, the lifting plate drives the air-injecting needles to pierce the dough through the rotating disks. This invention achieves simultaneous internal and external steaming of the dough by combining steaming from the outer periphery of the rice cake raw material steamer to the inside with convection steaming by air-injecting steam from the inside to the outside. This bidirectional steaming mode greatly shortens the steaming time.

The invention relates to the technical field of data monitoring and database construction, in particular to an urban planning monitoring core database construction method. The method comprises the following steps: acquiring multi-source city data by using a sensor; real-time traffic flow collection is carried out through the unmanned aerial vehicle and the camera, and a real-time traffic flow monitoring video is obtained; performing spectrum separation on the real-time traffic flow monitoring video to generate image spectrum data; performing image enhancement processing on the real-time traffic flow monitoring video according to the image spectrum data to obtain an enhanced image; performing video reconstruction on the enhanced image to generate a real-time traffic flow monitoring enhanced video; video frame feature extraction is carried out on the real-time traffic flow monitoring enhanced video, and a real-time monitoring image matrix is constructed; therefore, through the Internet of Things technology, the data analysis technology, the image processing technology and the prediction analysis technology, the prediction capability for the potential problem of the multi-source city data is improved, and the data retrieval speed of the core database is increased.

The present invention proposes a magnesium and magnesium alloy wire extrusion Y-type drawing composite forming method, which performs solid solution treatment on the magnesium alloy ingot, and prevents the precipitation of the second phase after water quenching. It is heated to above the recrystallization temperature, kept warm for a certain period of time, and then hot extruded in a horizontal extruder to extrude into a wire with a diameter of 3 mm; then the extruded wire is further heated, kept warm for a certain period of time, and transferred to a Y-type drawing die for drawing. The magnesium alloy wire extrusion Y-type drawing composite forming method provided by the present invention causes the magnesium alloy rod to first undergo severe plastic deformation at high temperature to obtain a 3mm fine-grained magnesium alloy wire, and then the 3mm wire is cooled and subjected to multiple Y-drawing passes, which solves the technical difficulties in the forming of magnesium alloy wires and realizes the precision forming of magnesium alloy wires with different compositions.

The invention discloses a method for optimizing mechanical properties of a ZTi60 titanium alloy, and aims to solve the technical problems that in the prior art, the mechanical properties of the ZTi60 titanium alloy comprise the defects of low strength, low ductility and high brittleness, and use of the titanium alloy in high-performance application is limited, especially in the fields of aerospace, biomedicine and the like. According to the technical scheme, the method for optimizing the mechanical property of the ZTi60 titanium alloy comprises the following steps that firstly, according to the preset element content range, pure titanium, aluminum, molybdenum, oxygen and other elements are mixed according to a proper proportion; and 2, vacuum consumable electric arc furnace smelting is carried out under the ultralow oxygen atmosphere. The ZTi60 titanium alloy in the hot isostatic pressing state is subjected to homogenizing annealing heat treatment, and the technological parameters of the homogenizing annealing heat treatment are as follows: the heat preservation temperature is 730 + / -10 DEG C, the time is 1.5-3 hours, and furnace cooling is performed after heat preservation is finished. The method is suitable for improving the comprehensive mechanical property of the ZTi60 titanium alloy.

The present invention provides a method for preparing plant protein meat, and belongs to the field of food processing technology. The present invention adopts wet spinning technology to prepare plant protein fibers. After the plant protein fibers are mixed with plant protein powder, sodium alginate, sodium chloride, monosodium glutamate, vegetable oil and water, they are subjected to cryogel treatment, protein backfilling and gel treatment to form plant protein meat products with good tissue structure. The preparation method of the present invention is lower in cost than electrospinning and 3D printing technology, and can realize industrial production. In addition, the product organization and fibrosis effect obtained by the preparation method of the present application is better than extruded protein, and the application range of plant protein is wider.

The invention relates to a container (10) for storing hydrogen at a pressure of more than 700 bar, comprising a housing (1) which encloses a storage volume (3), wherein the housing (1) is able to withstand the pressure and stresses exerted by the hydrogen in the storage volume (3), wherein the container (10) comprises an inner layer (2) which separates the storage volume (3) from the housing (1) in a gas-tight manner, such that the hydrogen is prevented from coming into direct contact with the material of the housing (1), wherein the inner layer (2) is positively and / or force-fittingly applied against the housing (1), and wherein the container (10) has an interface (5) for charging and emptying the storage volume (3). According to the invention, the housing (1) is composed of a high-strength metal, and the inner layer (2) is composed of a hydrogen-resistant, in particular hydrogen embrittlement-resistant, metal.

The invention discloses a hard-face flux-cored wire with a grain refining effect and a preparation process thereof, the hard-face flux-cored wire comprises a low-carbon steel sheath and a flux core filled in the low-carbon steel sheath, and the flux core comprises the following components in percentage by mass: 60-85wt% of high-carbon ferrochrome alloy powder, 10-15wt% of high-carbon ferrochrome alloy powder, 10-15wt% of high-carbon ferrochrome alloy powder and 10-15wt% of high-carbon ferrochrome alloy powder; 1 to 5 weight percent of potassium manganese titanate KMnTiO4; 1-5 wt% of electrolytic manganese powder; 1-5 wt% of rare earth ferrosilicon; 3 to 10 weight percent of graphite powder; and the balance of iron powder and inevitable impurities. In this way, grain refinement and deoxidation are achieved, the electric arc stability is improved, the mechanical property of weld metal is improved, the mechanical property of deposited metal is improved, and the crack resistance is improved.

This invention provides a fruit fermentation liquid composition for enhancing bread flavor, comprising the following ingredients in parts by weight: fruit: 120-200 parts; cranberry juice: 150-300 parts; sugar: 100-200 parts; yeast extract: 2-10 parts; water: 200-500 parts; flour: 20-50 parts; Angel high-proof yeast: 1-10 parts; esterification enzyme: 1-5 parts. This invention, through a specific fermentation liquid formula, combines the addition of fruit acids, which, under the action of esterification enzyme, produce rich fruity and floral esters, which are then expressed in bread. Simultaneously, unreacted fruit acids and alcohols produced by yeast can improve the bread's texture and extend its shelf life.

The present invention provides a lightweight real-time data system, which relates to the technical field of data processing. A system management module, a data governance module, a data acquisition module, a data service module and a data asset module constitute the entire system structure. A data quality assessment model ensures the accuracy, integrity and consistency of data. An anomaly detection model can timely discover abnormal values. The data acquisition module efficiently manages data sources. The data service module provides safe and reliable data access. The data asset module reasonably allocates resources, provides a basis for decision-making and regularly updates and maintains. A lightweight design is adopted, and general data acquisition, calculation and processing, data management and data service functions are integrated to reduce repetitive related code writing, realize flexible configuration and rapid deployment, and innovate business application construction modes. Lightweight processing enables the data system to adapt to global tourism management platforms and scenic area management platforms of different scales and types.

The application relates to the technical field of steel wires, and discloses a corrosion-resistant galvanized steel wire and a preparation method thereof. The corrosion-resistant galvanized steel wire is obtained by galvanizing a steel wire body through plating aid, and the steel wire body is composed of the following components in percentage by weight: C 0.15%-0.20%, Mn 0.28%-0.45%, Mo 0.15%-0.20%, Cu 0.12%-0.25%, W 0.05%-0.10%, Al 0.08%-0.12%, Ti 0.004%-0.016%, Sn 0.004%-0.015%, B 0.005%-0.01%, Y 0.005%-0.008%, S<=0.005%, P<=0.005%, and the balance is iron and inevitable impurities. Through the technical scheme, the problem that the tensile strength of the steel wire body in the galvanized steel wire needs to be improved in the related art is solved.

The invention relates to the field of boiler tube coatings, in particular to a boiler tube coating preparation system and method. Comprising a conveying assembly, a control system, a preheating unit, a coating unit, a curing unit, a sintering unit and a quenching unit, the control system is connected with the conveying assembly, the preheating unit, the coating unit, the curing unit, the sintering unit and the quenching unit. The conveying assembly and the control system are arranged, the preheating unit, the coating unit, the curing unit, the sintering unit and the quenching unit are sequentially arranged along the conveying assembly, boiler pipe preheating, coating, solid solution sintering and quenching treatment are sequentially carried out, and the boiler pipe with the coating is obtained. The device is reasonable in design, convenient to implement, capable of forming a complete production line of the boiler pipe coating, good in coating quality, high in efficiency and capable of well meeting actual requirements.

The invention discloses a regenerated sintered NdFeB magnet and a preparation method thereof. The components of the regenerated sintered NdFeB magnet are as follows by mass percentage: 1 a RE 2 b Co c Cu d M e Fe bal B f C g O h , 24≤a≤31, 0≤b≤8, 0≤c≤5, 0≤d≤0.8, 0≤e≤3, 0.85≤f≤1.2, 28.5≤a+b≤35, 0<g≤0.15, 0<h≤0.10, bal is the margin; among which RE 1 is one or a combination of Pr, Nd, La, Ce, and Y, RE 2 The invention relates to a regenerated sintered NdFeB magnet, wherein the regenerated sintered NdFeB magnet is a combination of one or more of the heavy rare earths Gd, Ho, Dy, and Tb, and M is a combination of one or more of the heavy rare earths Al, Cr, Nb, Zr, Ga, Ti, Zn, V, Mo, and Mn; the microstructure of the regenerated sintered NdFeB magnet is composed of a grain boundary phase and two main phases, wherein the first main phase has a double-shell structure and the second main phase has a single-shell structure. The invention effectively solves the problem of serious environmental pollution in waste recycling and low performance of waste recycled magnets. The preparation method of the regenerated sintered NdFeB magnet is an environmentally friendly method for high-value utilization of waste.

The invention relates to the technical field of titanium alloys and discloses a preparation method of TC19 titanium alloy. After being refined, silicon carbide particles can generate grain boundaries with high volume density, hindering the movement of dislocations and the extension of dislocations to adjacent grains. Rare earth has the function of purifying alloy liquid and effectively refining the structure. Boron element can generate boron carbide in situ with titanium element in the titanium alloy. During the stretching process of the titanium alloy, the load can be transferred from the matrix to the boron carbide particles, so that the matrix bears the energy of the load, and the resistance to the movement of dislocations is increased, thereby improving the strength and hardness of the titanium alloy material. After the TC19 titanium alloy is carbonitrided, titanium carbide and titanium nitride ceramic wear-resistant phases can be generated on the surface of the titanium alloy. At the same time, carbon and nitrogen can be dissolved in the titanium matrix, which has the function of solid solution strengthening, improves the wear resistance and corrosion resistance, and enhances its mechanical properties, thereby broadening the further application of the TC19 titanium alloy.

The invention relates to a corrosion-resistant magnetically soft alloy, in particular to a high-chromium high-plasticity corrosion-resistant magnetically soft alloy and a preparation method of a bar of the high-chromium high-plasticity corrosion-resistant magnetically soft alloy. Comprising the following steps: proportioning: weighing 2.2-2.8% by weight of silicon and 0.3-0.6% by weight of manganese as alloying raw materials; the method comprises the following steps: weighing 0.005 to 0.008 percent of carbon and 0.8 to 1.2 percent of aluminum as a deoxidizing and desulfurizing agent; 19.0-21.0% of chromium and the balance iron are weighed to serve as smelting raw materials; and vacuum melting, molten steel deoxidation, desulfurization and alloying, primary forging, secondary forging and heat treatment are conducted, and the high-chromium high-plasticity corrosion-resistant magnetically soft alloy bar is manufactured after heat treatment is completed. By increasing the content of chromium in the corrosion-resistant magnetically soft alloy and introducing the aluminum element, the corrosion resistance, plasticity, resistivity and magnetic performance of the corrosion-resistant magnetically soft alloy are improved.

The annealing equipment comprises a workbench, a clamping mechanism, an annealing table and a driving box, a plurality of regular and different limiting insertion holes are formed in the two sides of the upper surface of the workbench correspondingly, limiting rods are detachably arranged in the limiting insertion holes, and cutter bodies are placed on the upper surfaces of the limiting insertion holes; the limiting rod is used for limiting the cutter body; a liftable lifting frame is arranged at the front end of the clamping mechanism, a first pneumatic assembly is arranged on the upper surface of the lifting frame, a first clamping claw is arranged on the lower surface of the lifting frame, and the first clamping claw clamps and fixes a tool body through the first pneumatic assembly; a second clamping jaw pneumatically moving to the center of a circle is arranged on the upper surface of the annealing table; a motor and a cylinder are arranged at the lower end of the annealing table; the front end of the driving box is in heat conduction connection with a connecting rod, and a temperature sensor is installed in the joint of the connecting rod and the induction coil. The invention discloses annealing equipment for gradient hardness treatment of a shield cutter and a process of the annealing equipment. The comprehensive performance of the cutter can be comprehensively improved through two-time preheating and one-time annealing.

This invention relates to a CVD-modified coating, its preparation method, and its application, belonging to the field of coating technology. The preparation method includes the following steps: obtaining a CVD coating using chemical vapor deposition; subjecting the CVD coating to freeze-drying to obtain a first CVD coating; subjecting the first CVD coating to magnetic field heat treatment to obtain a second CVD coating; and sequentially alternatingly processing the second CVD coating with the freeze-drying and magnetic field heat treatments to obtain the CVD-modified coating. Based on existing CVD coating preparation methods, this invention utilizes a combined magnetic field heat treatment and freeze-drying process for synergistic modification, optimizing the microstructure of the CVD coating. When applied to a substrate surface, it can improve its hardness and wear resistance, thereby extending the service life of devices such as cutting tools, molds, and machine parts, and has a wide range of applications.

The invention discloses an aluminum alloy material for aluminum foil blanks, a preparation method thereof and an application thereof. The chemical composition of the aluminum alloy material for aluminum foil blanks is, by mass percentage, Si≤0.25%, Fe≤0.35%, Cu≤0.2%, Zn≤0.1%, Ti≤0.05%, Sc 0.01-0.03% and Zr 0.04%-0.18%, and the remainder is aluminum and unavoidable impurities, and the impurity content is ≤0.15%. By adding a specific proportion of rare earth element Sc and chemical element Zr to the alloying components of 1235D aluminum alloy, the composite modification of 1235D aluminum alloy is achieved, the grain refinement effect of reducing the grain size is achieved, the iron-rich phase is modified, the morphology and size of the iron-rich phase are optimized, thereby optimizing the organizational structure of the aluminum alloy and improving its mechanical properties.

The invention relates to the technical field of medical titanium metal surface electroactive coatings, and provides a Ti surface K0. 65Na0. 35NbO3 piezoelectric ceramic active coating material as well as a preparation method and application thereof, and the preparation method comprises the following steps: preparing Ti / K0. 65Na0. 35NbO3 composite powder by a ball milling method; ti / K < 0.65 > Na < 0.35 > NbO3 composite powder and K < 0.65 > Na < 0.35 > NbO3 powder are sequentially laid on a Ti matrix subjected to surface pretreatment, a spark plasma sintering body is prepared through spark plasma sintering, and the Ti surface K < 0.65 > Na < 0.35 > NbO3 piezoelectric ceramic active coating material is prepared through annealing treatment of the spark plasma sintering body. The Ti substrate and the K0. 65Na0. 35NbO3 layer are stably and firmly combined through the Ti / K0. 65Na0. 35NbO3 composite gradient connecting layer, the Ti surface K0. 65Na0. 35NbO3 piezoelectric ceramic active coating material with excellent piezoelectric ferroelectric performance, dielectric performance and binding performance is achieved, and accurate regulation and control of the performance of the Ti surface K0. 65Na0. 35NbO3 piezoelectric ceramic active coating material can be achieved.