443 results about "Structure property" patented technology

The invention discloses a method for writing characters on a touch screen, which relates to a touch screen character writing technology. The method is proposed according to the writing and applicationcharacteristics of a Multi-touch screen and comprises the following steps: transferring a standard character from a character database,; receiving a character to be compared and input by a user; andcomparing each stroke to be compared with each standard stroke so as to obtain a first comparison result and a second comparison result, wherein the standard character consists of standard strokes, the strokes comprise standard structure property values and standard shape property values, the first comparison result shows whether the structure property value to be compared of each stroke to be compared is the same as the standard structure value of the standard stroke or not, and the second comparison result shows whether the shape property value to be compared of each stroke to be compared isthe same as the standard shape property value of the standard stroke or not. The invention also discloses a device for achieving the method. The invention is easy to implement and is particularly sui table for penmanship exercises.

A system and method for systematically generating potential metal-organic framework (MOFs) structures given an input library of building blocks is provided herein. One or more material properties of the potential MOFs are evaluated using computational simulations. A range of material properties (surface area, pore volume, pore size distribution, powder x-ray diffraction pattern, methane adsorption capability, and the like) can be estimated, and in doing so, illuminate unidentified structure-property relationships that may only have been recognized by taking a global view of MOF structures. In addition to identifying structure-property relationships, this systematic approach to identify the MOFs of interest is used to identify one or more MOFs that may be useful for high pressure methane storage.

The invention provides a precision forming method of special-shaped parts with deep holes, which relates to the metal machining field with almost no cutting, especially a precision cold forging forming technology of special-shaped parts with deep holes. The invention comprises the process of saw-setting, annealing, shot blasting and phosphorus-saponification of part blank, and back extrusion with tremendous deformation of the part blank; thus, the preformed body with deep holes is completed; then the process of low temperature annealing, shot blasting, phosphorus-saponification is repeated; and subsequently by a plurality of cold finishing, the final product which meets the requirements of structure property and dimension precision is obtained. The method has the beneficial effect that by back extrusion, the preformed body is once completed. The metal streamlines inside the product are continuously distributed according to the shape, and the product has compact microstructure and stable quality, thereby prolonging the service life of the product.

The invention belongs to the technical field of medium carbon cold heading steel wire production, and relates to a manufacturing method of high-quality cold heading steel with a uniform structure property. The cold heading steel comprises the following chemical compositions by weight percent: 0.25 to 0.45% of C, 0.45 to 0.9% of Mn, 0.05 to 0.40% of Si, 0.70 to 1.50% of Cr, 0.03 to 0.50% of Mo, 0.015 to 0.045% of Alt, and the balance being Fe and unavoidable impurities. In a rolling process, a casting blank is heated, the billet taping temperature is 900 to 1150 DEG C, the final finish rolling temperature is 700 to 860 DEG C, and the spinning temperature is 800 to 880 DEG C. In a Stelmor air-cooled wire controlled cooling process, the casting blank is cooled to 500 to 700 DEG C at a cooling rate of more than 5 DEG C/s and then enters a cover, and the cooling rate in the cover is 0.2 to 0.8 DEG C/s. According to the manufacturing method, the traditional controlled rolling and controlled cooling process is reasonably set, and the role of the controlled rolling and controlled cooling process in structure control is fully played, so that the ideal structure is controlled, the cracking problem of the cold heading steel is greatly solved, the pass rate of standard finished products is improved, and the economic efficiency is improved.

The invention relates to a rolling device for preparing a high-toughness high-formability magnesium alloy sheet strip coil and belongs to the field of metal material rolling. The rolling device provided by the invention comprises a rolling machine, an uncoiling machine, a left-right recoiling machine, a front online heating insulating device of the roll machine, a rear online heating insulating device of the roll machine, a straightening machine, a bending rectifying machine, a thickness measuring device, a steering tension roll, a guide roll, a roller heating and lubricating device and the like. In the invention, an online continuous heating device and an advanced PLC (programmable logic control) feedback control system are adopted, and continuous temperature control rolling on the magnesium alloy strip coil is realized. The rolling device provided by the invention has the advantages of uniform heating temperature, high heating efficiency and high temperature control accuracy, and high-quality thin wrought magnesium alloy strip coils are efficiently produced by virtue of a roller preheating insulating system, a technical lubricating system, a strip shape control system and a tension straightening device, thus the geometric quality and structure properties of rolled metal can meet operating requirements.

The invention discloses a method for controlling a medium plate quenching technology. The method comprises formulation of steel plate quenching strategies, model calculation of quenching parameters and formulation of quenching regulations, namely comprises the following steps of: according to steel plate planning information and model parameter information, automatically selecting one of four quenching manners, namely water cooling, haze cooling, strong wind cooling and air cooling, and formulating corresponding cooling strategies; calculating a comprehensive heat exchange coefficient of the surface of the steel plate according to the structural size of cooling equipment and control parameter initialized cooling parameters; calculating the temperature drop of the steel plate according to a heat conducting equation by combining a thermo-physical parameter model, and continually optimizing the quenching parameters till the cooling rate and the final cooling temperature reach target values; and finally performing structure property analysis and cooling regulation formulation, and sending the calculated regulations to a database, a programmable logic controller (PLC) and an interface. The method is flexible in cooling strategy formulation and high in cooling regulation calculation precision, and well solves the problems that the control precision of the medium plate quenching process is low, the performance of the quenched steel plate is unqualified and the like.

The invention discloses a deposition forming manufacturing method of parts and molds, and belongs to the field of non-mold growing manufacturing and remanufacturing. The method comprises the following steps that S1, the three-dimensional CAD model of a workpiece to be formed is subjected to hierarchical slicing; S2, the CNC codes of all hierarchical slices are acquired; S3, deposition forming is conducted layer by layer according to the CNC codes of all the hierarchical slices, the fine portions of the workpiece are formed by laser, and one or more technologies in electric arc welding, electron beam welding, electroslag welding and submerged-arc welding is or are adopted to form the thick wall and the non-fine portions of the workpiece; or in the S3, a heat source which is compounded by laser beams and gas protection electric arcs or a heat source which is compounded by the laser beams and vacuum protection electronic beams is adopted for forming the thin wall and the fine portions of the workpiece, and the gas protection electric arcs or the vacuum protection electron beams are shut down. According to the deposition forming manufacturing method, direct deposition forming can be achieved to obtain parts and molds which are stable in structure property and high in manufacturing precision and are provided with thin walls or fine portions.

Systems and methods which determine geologic properties using acoustic analysis are shown. Acoustic signals are collected during processing (e.g., crushing, shearing, striking, compressing, etc.) of geologic media, such as rock samples, for determining geologic properties according to embodiments. The acoustic signals collected may include frequency information, amplitude information, time information, etc. which may be utilized in determining geologic properties, such as geologic media properties (e.g., mineralogy, porosity, permeability, sealing capacity, fracability, compressive strength, compressibility, Poisson's Ratio, Youngs Modulus, Bulk Modulus, Shear Modulus), geologic structure properties (e.g., lithology, seal quality, reservoir quality), geologic acoustic properties (e.g., acoustic logging effectiveness, acoustic response, natural or harmonic frequencies, etc.). Embodiments may be used to provide determination of geologic properties from a variety of geologic media samples, such as cuttings, core samples, etc.

The invention relates to a high-strength low-elasticity modulus TiZrNbHf high-entropy alloy and a preparation method thereof; the component of the high-entropy alloy is TiaZrbNbcHfd, wherein a is not less than 20 and not more than 35, b is not less than 20 and not more than 35, c is not less than 20 and not more than 35, and d is not less than 20 and not more than 35. The preparation method of the alloy comprises the following steps: descaling metallurgy raw materials (Ti, Zr, Nb and Hf metals), precisely weighing and proportioning according to a mole ratio for smelting alloy; smelting the alloy by using a non-consumable vacuum arc furnace or a cold crucible suspension furnace, smelting the alloy in a water-cooling copper crucible, suction casting or pouring the alloy in a copper mold through vacuum suction casting or metal mold equipment so as to obtain high-entropy alloy rod or platy material. The high-entropy alloy has high strength, low Young modulus, and excellent structure property stability at a high temperature, the alloy element is non-toxic to human body or low in toxicity; and therefore, the high-entropy has good application prospect on biomedical and high-temperature components.

The invention discloses an ultrasonic field coupled laser-MIG common welding pool aluminum alloy welding technology. Ultrasonic vibration is coupled in a laser-MIG composite welding pool. The number of ultrasonic coupling modes is three: the first mode refers to the fact that ultrasonic vibration is applied to a workpiece or a welding base plate, and ultrasound is transmitted to a welding pool through mechanical vibration of the workpiece or the base plate; the second mode refers to the fact that a pulse power with an ultrasonic frequency is overlapped on an MIG welding power through arc coupling ultrasound, the connected and disconnected moment of each pulse excites arc ultrasound, and finally the ultrasound is acted to the welding pool, or an ultrasonic-MIG composite welding gun is adopted to perform coupling ultrasound to the welding arc, and then the coupling ultrasound is transmitted to the welding pool; the third mode refers to the fact that another path of pulse laser is adopted to irradiate the welding pool to modulate coupling ultrasound. By the adoption of the method, aluminum alloy laser-MIG composite welding joint pores can be reduced or eliminated, and the structure property of the welding joint can be improved.

The invention relates to a highly thermostable and ordered mesoporous alumina material and a preparation method thereof and belongs to the field of preparation of inorganic porous materials and catalysts. Inorganic aluminum thermally pretreated by a solvent is used as a precursor and interacts with segmented copolymer template agent micelles through solvent evaporation-induced self-assembly to obtain a mesoporous alumina material with a highly ordered mesoporous structure and high thermal stability. The mesoporous alumina material has a mesopore diameter of 4.0-10.0 nm, a specific surface area of 200-400 m<2>/g and a pore volume of 0.3-1.0 cm<3>/g; after the mesoporous alumina material is baked for 1 hour at high temperature of 1,000 DEG C, the structure property does not change, the reduced degree of the specific surface area is not more than 44%, and the reduced degree of the pore volume is not more than 47%. A preparation process of the mesoporous alumina material is simple and easy to operate, high in repetition rate, environment-friendly and capable of greatly reducing the production cost of the mesoporous alumina material.

The invention discloses an infrared temperature detecting device for wire material plasma arc additive manufacturing and a detecting method of the infrared temperature detecting device. The infrared temperature detecting device comprises a working platform, a base plate, a plasma welding gun, an infrared temperature sensor, a clamp of the infrared temperature sensor, a temperature collecting controller, a computer, a robot control cabinet and the like. According to the detecting method of the infrared temperature detecting device, a non-contact infrared temperature sensing mode is mainly adopted, the temperature of a starting point of a surfacing layer is collected, when the temperature is detected to be lower than a preset temperature value, the computer communicates with the robot control cabinet through the temperature collecting controller, and a next pass of surfacing is conducted. In this way, according to the infrared temperature detecting device for wire material plasma arc additive manufacturing and the detecting method of the infrared temperature detecting device, detecting for the temperatures between surfacing layers of carbon steel, stainless steel and titanium alloy wire material plasma arc additive manufacturing can be achieved; the arcing time of the surfacing layers is controlled; homogeneous temperature control over metal of the surfacing layers is achieved; and the problems that smelting and coating layers are over heated, and the metal grain size is not even are effectively avoided, so that a formed piece is even in structure property, and the forming size precision and quality of electric arc additive manufacturing are improved.

The invention discloses a laminar cooling process control device and method for hot rolled strip steel. The laminar cooling process control method includes parameter setting, structure property predicting, target technique optimizing, network data transmitting and field control modules. The laminar cooling process control device mainly comprises a finishing mill group, a temperature measuring device, a temperature gathering device, a laminar cooling device, an edge masking device and a reeling machine; the temperature measuring device and the temperature gathering device measure and gather the temperature distribution of the hot rolled strip steel in the width direction when being discharged from the finishing mill group, the temperature distribution is transmitted to a computer simulation module in a data mode to analyze and process to determine a proper cooling mode, and a field executing mechanism controls the open number of cooling manifolds and the edge masking amount of the edge masking device to enable the temperature of the strip steel at the inlet of the reeling machine to be less than 50 degrees centigrade. The laminar cooling process control device and method for the hot rolled strip steel solve the problem of non-uniform structure property of the strip steel along the width direction and guarantee the excellent quality and uniform structure property distribution of the strip steel.

The invention relates to a pipe mold manufacturing process adopting a continuous-casting blank to forge and roll a rough blank periodically, belonging to the technical field of pipe mold manufacture. The manufacturing process comprises the process steps of: smelting of the continuous casting blank in a blast furnace, reinspecting, blanking, heating in a ring-shaped furnace, mannesmann piercing, periodically rolling a pipe, straightening, detecting flaws with magnetic powder, cutting the head and the tail, roughly processing, boring, carrying out ultrasonic flaw detection, thermally treating, sampling and reinspecting, finish processing, carrying out surface strengthening treatment, inspecting, spraying and printing, weighing and warehousing. The pipe mold manufacturing process has the advantages that the continuous casting blank replaces the mold casting blank adopted by the existing process, the characteristics that the yield is high, the cost is low, the energy consumption is less, the structure property is stable and the like are fully exerted, and the cost is reduced in the two aspects of the process and raw materials; in addition, the forging and rolling of a Pilger type rolling machine and the structure characteristics of a classic T-shaped pipe mold are effectively combined, the condition that the pipe mold blank forged and rolled by the process periodically has the performance close to the forged blank of the traditional pipe mold is guaranteed, and the Pilger head which needs to be cut in rolling is fully utilized simultaneously, so that the production efficiency is improved greatly.

The invention discloses general apparatus and methods for electrochemical energy conversion and storage via a membraneless laminar flow battery. In a preferred embodiment, the battery includes a flow-through porous anode for receiving a fuel and a porous electrolyte channel for transporting an electrolyte adjacent to the porous anode; a flow-through porous cathode is provided for transporting an oxidant; and a porous dispersion blocker is disposed between the electrolyte channel and the porous cathode, which inhibits convective mixing while allowing molecular diffusion and mean flow. Pore structure properties are selected for tuning convective dispersion, conductivity or other macroscopic properties. Specific materials, reactants, fabrication methods, and operation methods are disclosed to achieve stable charge/discharge cycles and to optimize power density and energy density.

The invention discloses a preparation method of a tubular niobium target for magnetron sputtering. The method comprises the following steps of: forging a niobium casting ingot into a cylindrical niobium blank; drilling a through hole at the center of the cylindrical niobium blank to obtain a tubular niobium blank, and then uniformly coating anti-oxidization coatings on the surfaces of the inner and outer walls of the tubular niobium blank; extruding the tubular niobium blank coated with the anti-oxidization coatings to obtain a niobium tube blank; sequentially carrying out sand spraying, acid washing and machining on the niobium tube blank to obtain a semi-finished product of the tubular niobium target; and carrying out vacuum heat treatment on the semi-finished product of the tubular niobium target to obtain the tubular niobium target for the magnetron sputtering. The tubular niobium target prepared by the method disclosed by the invention has a good structure property; and crystal grains along the wall thickness direction of the target are uniform and can reach the grade of 4-6, the size of the crystal grains is not more than 100 mu m, and the re-crystallization rate of the grains is not less than 90%, so that the uniform consistency of a coating film in the magnetron sputtering is guaranteed.

The invention discloses a method and a device for identifying isomerism graph and property corresponding to a molecular space structure, and machine equipment. The method comprises the following steps: carrying out feature description containing a topological structure on a heterogeneous graph to generate feature information; through sampling the isomerism graph and the feature information, generating a feature vector, corresponding to a key node, on a topological structure contained in the isomerism graph; performing aggregation processing on the feature vectors to generate graph representation vectors corresponding to the isomerism graphs; and according to the graph representation vector, performing classification processing on the isomerism graph to obtain a classification prediction result. Therefore, the identification of the graphical representation corresponding to the heterogeneous graph, such as the molecular spatial structure, can be realized through the neural network, the analysis and processing performance related to the isomerism graph is effectively improved, the neural network is not limited to the classification and identification of network data any more, and the application scene is greatly expanded.

The invention provides a shunt blocking forming method for a star-shaped sleeve. The method provided by the invention successively comprises the following process procedures: material sawing, spheroidizing annealing, shot blasting, phosphorus saponification processing, cold upsetting extruding, spheroidizing annealing, shot blasting, phosphorus saponification processing, reverse extruding, punching, incomplete annealing, shot blasting, phosphorus saponification processing and shunt blocking formation, thereby finally obtaining a product meeting the structure property and dimensional accuracy requirements. The shunt blocking forming method provided by the invention is adopted to obtain the complicated external surface of the star-shaped sleeve, thus solving the problems of large machining allowance, poor dimensional accuracy, unsatisfactory internal structure of blanks and the like. The method has the advantages of reduction in blank weight in comparison with warm forging and hot forging blank weight, small subsequent machining allowance, conservation in subsequent machining time, high dimensional accuracy, stable quality, excellent internal structure property, long service life ofa die, and high surface finish of forge pieces.