191 results about "Rheology" patented technology

The invention relates to the technical field of magnetic material injection molding, and discloses an injection molding magnetic powder orientation optimization method and system based on rheology-magnetic field coupling. The method comprises the following steps: deploying a distributed sensing network at key positions of a mold runner and a mold cavity, and synchronously capturing dynamic viscosity change gradient and magnetic field intensity space distribution of a melt in real time in a filling process. The captured data are input into a multi-physics field coupling simulation engine based on micromechanics, an instantaneous orientation vector field of the magnetic powder in the cavity is obtained through calculation, then an orientation order degree topological graph is constructed through tensor analysis and an image algorithm, and a weak orientation area and the boundary of the weak orientation area are accurately recognized. And finally generating a composite regulation and control instruction of the magnetic field and the injection parameters according to an identification result. According to the method, online diagnosis and active compensation regulation and control of the orientation state of the magnetic powder can be realized, and the orientation uniformity and consistency of the injection molding magnet are improved.

The invention discloses a visual inspection and evaluation method and system for the sealing quality of a liquid crystal display, and the method comprises the steps: generating a multi-dimensional space-time state map of a sealing region based on the time sequence multi-mode image data of a sealing technology after the time sequence multi-mode image data of the sealing technology is obtained; performing time sequence dynamic feature analysis on the multi-dimensional space-time state atlas, and extracting behavior pattern features of the sealing glue curing process; inputting the behavior mode characteristics of the sealing glue curing process into the colloid rheology-thermocuring coupling inversion model, and outputting a process parameter deviation interval and a material state distribution diagram; establishing a dynamic statistical reference behavior pattern library; and finally, carrying out matching and deviation degree calculation on the current behavior mode characteristics based on a dynamic statistical reference behavior mode library, and outputting a sealing compound quality comprehensive evaluation report and a process tuning guidance suggestion in combination with a process parameter deviation interval and a material state distribution diagram. According to the invention, deep dynamic diagnosis and root process optimization of the sealing glue curing process are realized, and the accuracy and initiative of quality control are improved.

The invention belongs to the technical field of industrial coating engineering and automatic control, and relates to a steel member surface coating thickness control system based on machine vision, which is characterized in that electromagnetic characteristics of a liquid coating are sensed in real time through a dielectric parameter detection module; the rheological and dynamic behaviors of the coating are analyzed by utilizing a microdynamics measurement module and combining impact force sensing and structured light imaging; a direct measurement result of the machine vision module on the three-dimensional morphology of the coating is fused, and the information and the pose data of the spray gun are synchronously packaged into a physical state vector by means of a multi-source data fusion module; matching an optimal strategy through a collaborative decision control module, and generating a control instruction; and finally, a controlled fluid resonance perturbation field is formed in the jet flow, so that in-situ and self-adaptive regulation and control of the coating deposition process are realized. The method solves the problems that a traditional spraying process lacks real-time, quantitative and self-adaptive control capability on the coating deposition process and guarantees the coating thickness uniformity and the process stability.

Printing paste, in particular for the production of three-dimensional screen-printed workpieces, comprising a solid, at least one monomer, a photoinitiator and at least one rheology additive, wherein the solid comprises at least one metallic material and wherein the mass fraction of the solid is at least 50%.

The invention relates to a solid waste based material 3D printing forming control system and a control method thereof.The solid waste based material 3D printing forming control system comprises a data acquisition module, the output end of the data acquisition module is electrically connected with a material proportion optimization module, and the output end of the material proportion optimization module is electrically connected with an edge calculation processing module; and the output end of the edge calculation processing module is electrically connected with a printing control module. Full-process intelligent control is achieved through cooperation of multiple modules, the system adopts a high-precision sensor network to monitor material state parameters in real time, the material ratio is dynamically optimized in combination with a machine learning algorithm, raw material fluctuation and environment change are effectively adapted, quick response is achieved through edge calculation, and the system is high in practicability. The process parameters are quickly adjusted based on a rheological model and an anomaly detection technology, so that the printing size deviation is reduced, and a closed-loop feedback mechanism continuously optimizes a control strategy through three-dimensional scanning comparison and quality evaluation, so that the quality comprehensive score of subsequent similar printing tasks is improved.

This invention relates to the field of joint sealant materials, specifically to a non-sagging joint sealant material for facades and its preparation method. The non-sagging joint sealant material comprises component A, containing polyether polyol, and component B, containing isocyanate, with a mass ratio of component A to component B of 1.5:1. Component A includes the following components: polyether polyol A, polyether polyol B, filler, chain extender A, chain extender B, light stabilizer, antioxidant, catalyst, reinforcing agent, defoamer, rheology modifier A, rheology modifier B, and dispersant. Component B includes the following components by weight percentage: polyether polyol A, liquefied MDI, defoamer, rheology modifier A, and rheology modifier B. This invention uses fumed silica as a reinforcing agent, which increases both strength and thixotropy of the material, effectively preventing sagging.

The invention discloses a cross-scale structure-material rheology detection system, which belongs to the technical field of biomedical engineering, and realizes cross-scale geometric imaging by combining optical coherence tomography and laser scanning confocal or fluorescence imaging common optical path design. Geometric-mechanical synchronous observation and analysis of in-situ real-time monitoring and cross-scale synchronous monitoring of stress and strain of a multi-scale structure are supported; the biological 3D printing based on the six-axis robot supports in-situ printing on a rheology detection platform, so that a standardized rheology detection model of a bionic tissue inherent structure is constructed, and automatic and high-throughput bio-ink geometry-mechanics synchronous observation is supported; a multi-physics field coupling measurement model in a dynamic microenvironment is constructed, and a printing structure-material mechanics coupling mechanism is analyzed based on a rheology-structure data quantitative mapping model of deep learning. The system is based on rheology detection of the structure, and the theoretical and technical limitations of multi-scale structural mechanical property monitoring are solved.

The invention relates to the technical field of general control or regulation systems, and discloses a closed-loop optimization control system for a waste lithium iron phosphate material recovery process, and the system comprises a reaction heat flow calculation module which is used for generating a thermodynamic state track representing a reaction process; and the state consistency arbitration module is used for generating rheological state tracks representing the physical form of the slurry in parallel, carrying out real-time arbitration on the consistency of the two tracks so as to judge the credibility of the thermodynamic state track, and intervening the operation of the adjusting module according to the credibility, so that the reliability of the thermodynamic state track is improved. According to the method, a cross validation mechanism from different physical dimensions is established, so that the control system can confirm the credibility of the core control basis in real time before executing the regulation instruction, the control system is prevented from making wrong regulation actions when a single information source has silent failure, and the regulation efficiency is improved. Therefore, the robustness and decision security of the system are improved.

This invention discloses a method for evaluating the formability of reversible cross-linked self-healing 3D printing ink, belonging to the technical field of 3D printing material evaluation methods. This invention utilizes an extrusion 3D printer to print multi-layer scaffolds. By comparing the printed physical scaffolds with scaffold models based on finite element simulation, it analyzes collapse and fusion. Combined with the evaluation of the roundness of the fused scaffolds and the shape changes of the scaffolds after collapse, it constructs an evaluation method suitable for the formability of reversible cross-linked self-healing colloidal gel inks in 3D printing. It includes quantitative calculation methods for ink rheological properties, visualized deformation, and formability, applicable to the evaluation of various reversible cross-linked self-healing inks.

The application discloses a material formula optimization method and system based on rheological data and machine learning. The application takes rheological characteristics as the input of a machine learning model to optimize material parameters, formula variables and process parameters of a polymer. The method of the application does not directly statistically correlate a physical response with material variables, but embeds an intermediate layer based on basic polymer physics principles and rheological theories for connecting the bottom layer and the top layer of structure variables and responses, and realizes integration and prediction modeling of the three layers based on a rheological data set.

This invention discloses a method for preparing a three-phase slurry using carbon dioxide mineralization and solid waste grading, comprising: pretreatment and precise supply of coal-based solid waste raw materials; intelligent prediction of grading and batching; preparation of primary slurry; preparation of secondary slurry; pressurized CO2 three-phase mineralization reaction; and depressurization, stabilization, and storage of the mineralized slurry. The three-phase slurry preparation system using carbon dioxide mineralization and solid waste grading includes a raw material storage and supply unit, a primary slurry preparation unit, a secondary slurry preparation unit, and a CO2 mineralization reaction unit connected in sequence. The method and system for preparing a three-phase slurry using carbon dioxide mineralization and solid waste grading employs multi-solid waste grading, using a combination of coarse and fine particles in slurry preparation and coal slime as a rheology modifier to regulate the shear-thickening and swelling plasticity characteristics of pure coal gangue slurry into a shear-thinning pseudoplastic three-phase slurry, significantly increasing slurry density and reducing viscosity and transportation energy consumption.

The present application relates to food processing control technical field, disclose a kind of chili sauce processing multi-equipment linkage program control system and method, system includes: main control module, crushing module, boiling module, auxiliary material module and filling module.Estimating unit extracts stirring electrical parameter and calculates equivalent rheological resistance gradient, combined with heating parameter to calculate compensation type effective evaporation enthalpy change index.Scheduling unit compensates crushing frequency according to the slope of resistance gradient in the early stage of boiling;Relaxation time is extracted using step pulse response to modify enthalpy change index in the moisture evaporation stage;Resistance gradient and enthalpy change index are two-dimensionally mapped to trigger auxiliary material handover, and heating opening is limited using mechanical heat equivalent;Before discharging, build cooling observation window to obtain heat-sensitive coupling coefficient, and accordingly grade adjust pipeline heat tracing and filling servo parameters.The present application converts electrical and thermal parameters into material rheology and enthalpy state, realizes cross-process adaptive collaboration of whole processing flow, and improves product consistency.

Printing paste, in particular for the production of three-dimensional screen-printed workpieces, comprising at least one solid, at least one solvent and at least one rheology additive, wherein the solid comprises at least one ceramic material and / or at least one non-metallic material and wherein the mass fraction of the solid is at least 25%.

The invention discloses a high-viscosity material experimental molding and rheological parameter measurement method considering both a supergravity environment and a constant gravity environment. Comprising the following steps: firstly, placing a high-viscosity material in a closed space provided with a sonar sensor, and enabling the closed space to be in a constant-gravity or supergravity environment; pressurizing the closed space to a preset high air pressure for a period of time, then releasing the pressure to a preset low air pressure for a period of time, repeating pressurizing and pressure releasing for preset times, and collecting the volumetric strain of the high-viscosity material at any preset high air pressure or preset low air pressure through a sonar sensor in the repeating process; and after the operation is repeated for preset times, bubbles in the high-viscosity material reach the preset discharge efficiency, and in-situ leveling and molding of the high-viscosity material are completed. The device and the method have the beneficial effects that the material bubbles of the high-viscosity material are efficiently discharged and the rheological parameters of the high-viscosity material are measured in a constant-gravity and supergravity experimental environment.

The invention provides a composite geopolymer material as well as a preparation method and application thereof, and belongs to the technical field of geopolymer materials. The method comprises the following steps: providing initial alkalinity and soluble salt ions of a system by using papermaking black liquor ash, providing an aluminum-silicon precursor by using coal gangue powder, obtaining geopolymer slurry with proper rheology through coupling regulation and control of proportion, granularity and water-binder ratio, and forming the geopolymer slurry into a sample blank; then absorbing industrial furnace tail gas by using a composite amine solution to prepare a CO2-rich solution, soaking the sample blank for a short time to enable the CO2-rich solution to uniformly permeate into pores, heating in a medium-low temperature and high humidity environment to promote the CO2-rich solution to slowly release CO2 into the plate, and synchronously evolving with a gel network to form uniform and stable carbonate microcrystals and compact pore walls, so as to achieve the purpose of improving the performance of the plate. According to the process, the surface layer density and the size stability are rapidly improved, meanwhile, CO2 resource solid storage and amine liquid closed-loop circulation are achieved, NaOH / water glass does not need to be additionally added, the corrosivity and the safety risk are low, and the process is suitable for continuous industrial production.

The invention discloses stone-like paint taking lithium magnesium silicate and guar gum as main bodies and introducing a graphene family lamellar material as well as a preparation method and application of the stone-like paint, and belongs to the technical field of building coatings. The graphene family lamellar material exists at a low doping amount of 0.02-0.15% (based on a whole formula, solid content), preferably, the graphene family lamellar material is pre-compounded with magnesium lithium silicate according to a mass ratio of 10: 1-50: 1 to form a Lp-G (O) hybrid, and an S3 pre-dispersion dropwise adding step is newly added in the process of S1-S6, and a window with the pH value of 8.0-9.0 and the construction viscosity of 90-110 KU is matched, so that lamellar layers are subjected to in-plane orientation, and a'labyrinth path 'barrier is formed; according to the formula, styrene-acrylic emulsion is continuously adopted to form a film, and stone-like textures are constructed by graded quartz sand (40-80 meshes: 80-120 meshes: 120-180 meshes = 2: 3: 5). Compared with a contrast formula which does not contain a layer material, the water resistance / alkali resistance, artificial aging resistance, adhesive force and appearance retention are remarkably improved, meanwhile, construction rheology and stone-like appearance are kept, and the stone-like coating is suitable for interior and exterior wall decoration.

The invention relates to the technical field of physical similar simulation, and particularly provides a physical simulation method for a lunar lava tube structure forming process, which comprises the following steps of: mixing a thermoplastic material and a condensation additive to prepare a simulation melt meeting a basalt lava rheology and thermodynamics similarity criterion; the low gravity effect, the high vacuum environment and the radiation cooling condition in the lunar environment are reproduced through an inclined flow channel and a thermal vacuum cavity, and the injection rate, the flow channel inclination angle and the target environment temperature of the simulated melt are determined by accurately matching dimensionless parameters such as the Peclet number, the dimension temperature and the Rayleigh number; under the condition, controlled flow and surface solidification crusting of the melt are simulated, and finally a cavity structure model is formed, so that physical research on the lunar lava tube structure forming process is realized. According to the method, the lava flow dynamic crusting and cavity forming process in the extreme lunar environment can be accurately reproduced, and a quantitative experimental data basis is provided for formation mechanism research and engineering application of the lunar lava tube.

This invention relates to the field of physical similarity simulation technology, specifically providing a physical simulation method for the formation process of lunar lava tube structures. The method involves preparing a simulated melt that meets the rheological and thermodynamic similarity criteria of basaltic lava by mixing thermoplastic materials with condensation additives. The low-gravity effect, high-vacuum environment, and radiative cooling conditions under lunar conditions are reproduced using inclined flow channels and thermal vacuum cavities. By precisely matching dimensionless parameters such as Peckley number, dimensional temperature, and Rayleigh number, the injection rate, flow channel inclination angle, and target ambient temperature of the simulated melt are determined. Under these conditions, controlled melt flow and surface solidification crust formation are simulated, ultimately forming a cavity structure model. This allows for the physical study of the formation process of lunar lava tube structures. This invention can accurately reproduce the dynamic crust formation and cavity formation process of lava flow under extreme lunar conditions, providing a quantitative experimental data basis for the study of the formation mechanism of lunar lava tubes and their engineering applications.

The invention relates to the technical field of ferrous metallurgy, in particular to a blast furnace slag fluidity regulation and control method based on component adjustment and thermal parameter control, which comprises the following steps: a feature extraction step: extracting raw material component pulse type fluctuation features and hearth thermal state indirect fast variables; a model construction step: fusing the features to construct a furnace slag rheology toughness virtual perception model; a state deduction step: utilizing deep reinforcement learning to generate a future furnace slag rheology toughness index evolution curve; a decision resolving step: identifying thermal-chemical redundant parameters by using dynamic programming in combination with an extreme low fuel ratio boundary; a dynamic regulation and control step: constructing a multi-time scale instruction based on the parameters to carry out coupling regulation on slagging and air supply systems, and carrying out closed-loop feedback; according to the invention, the fluidity maintenance of the slag in the metastable state is realized.

This invention provides a river silt solidification slope protection material and its dedicated equipment and construction method using spray-applied slope construction, belonging to the field of river ecological restoration and slope reinforcement technology. The river silt solidification slope protection material comprises the following raw materials in parts by weight: 55-75 parts river silt, 20-30 parts spray-applied composite curing agent, 1-3 parts rheology modifier, 1-4 parts accelerator, and 1-3 parts ecological additive. The construction method is as follows: after the raw materials are mixed evenly, they are sprayed in layers onto the slope using a spray-applied device. After spraying, curing is performed to form a solidified ecological slope protection layer on the slope. This river silt solidification slope protection material enables in-situ resource utilization of river silt and has strong terrain adaptability. It is a low-cost, low-carbon, and environmentally friendly solidification slope protection material. Moreover, the spray-applied slope formation is rapid, has strong terrain adaptability, and a short construction period, forming an ecological slope protection interface that combines structural support and vegetation restoration.

This disclosure relates to compositions comprising lightweight particulate fillers, binders, and modified urea rheology modifiers, wherein the compositions do not exhibit retroreflectivity upon curing; an aerosol dispensing system for applying such compositions and a coating thereby deposited are also disclosed.

The invention relates to the technical field of ink preparation, in particular to high-temperature-resistant high-performance PCB character printing ink and a preparation method thereof. The ink comprises a benzoxazine-biphenyl liquid crystal epoxy hybrid prepolymer, an amino-functionalized hexagonal boron nitride nanosheet, a polysiloxane coated ZIF-8 packaged rare earth aluminate heat-resistant pigment, a hyperbranched polyetherimide diluent and a composite wall material microencapsulated dicyandiamide curing agent, the invention relates to a graphene quantum dot modified montmorillonite rheological regulator and a composite stabilizer. The preparation method comprises the following steps: optimized pre-dispersion, self-assembly and phase separation, stepped curing and post-treatment. Through the synergistic effect of all the components and unique process control, the high temperature resistance, adhesive force and yellowing resistance of the ink are remarkably improved, a cured film layer of the ink can tolerate the high temperature of 300 DEG C for a long time, and the ink has excellent printability and line width precision and is suitable for character identification of a high-reliability PCB.

The invention discloses a preparation method of self-adhesive paper, which comprises the following steps: treating the surface of raw paper by atmospheric pressure plasma to enable the surface of the raw paper to be improved to a level enough to form chemical bonding with a lamination material, so as to obtain target raw paper; on the basis of an electrostatic spinning process, a lamination material containing a nano modifier is deposited on the surface of target body paper, and electrostatic spinning process parameters are controlled to enable the lamination material to form a lamination layer with specific morphological characteristics in the film forming process; coating an adhesive composition containing a photosensitive component and a thermosensitive component on the surface of the lamination layer, and curing to form an adhesive layer; and coating the surface of the adhesive layer with an ultraviolet curing organic silicon composition containing the rheological regulation and control nano filler, and curing to form a release layer to obtain the self-adhesive paper. The peeling strength and ultra-light stable release force between the body paper and the lamination layer are improved, and the problem of glue overflow is effectively avoided while high initial adhesion is realized.

A printing paste, in particular for producing three-dimensional screen-printed workpieces, comprising at least one solid, at least one solvent, and at least one rheology additive, the solid comprising at least one ceramic material and / or at least one non-metal material and the percentage by weight of the solid being at least 25%.

The invention discloses a grouting coupling simulation method and system based on a diffusion model and time-varying rheology, and relates to the technical field of geotechnical engineering grouting numerical simulation. Current geological data are input into the diffusion model to generate grouting initial parameters; automatically identifying and dividing a plurality of solidification stages of the slurry based on the multi-source sensing data; based on a stage division result, performing dynamic inversion and analysis on parameters in the time-varying rheological constitutive equation of the slurry to obtain time-varying rheological parameters, and coupling the time-varying rheological parameters to a constitutive relation of a multi-physics field coupling control equation set in real time; and when the slurry density of a certain area in the computational domain is lower than a critical density threshold value, activating the fluid model for solving, when the slurry density reaches or exceeds the critical density threshold value, switching the area to a solid mechanical model for solving, and dynamically optimizing grouting parameters based on a reinforcement learning algorithm. Simulation parameters and a calculation model are dynamically adjusted through an AI system, and continuous and accurate simulation of the whole process of slurry from liquid pouring to solid phase change is achieved.

A printing paste, in particular for producing three-dimensional screen-printed workpieces, comprising at least one solid, at least one solvent, and at least one rheology additive, the solid comprising at least one metal material and the percentage by weight of the solid being at least 25%.

The invention provides a manufacturing method and equipment of a concrete-red mud composite component, and relates to the technical field of concrete construction and manufacturing, and the method comprises the following steps: placing an inner mold and an outer mold in a vibration module, pouring common concrete in a gap between the inner mold and the outer mold, and pouring red mud concrete in the inner mold. Before solidification, real-time state data of fluidity, compactness, temperature and the like of the two kinds of concrete are collected, and a rheological model is constructed based on the real-time state data and physical data. And analyzing real-time state data, and adjusting the frequency and strength of the vibration module and the rising speed of the internal mold. Before preliminary solidification, the inner mold ascends at a preset speed during vibration, and data are continuously collected to optimize parameters. And after the inner mold completely ascends, the vibration module stops, the double-layer mold stands to form the concrete, and the composite component is obtained. According to the method, data of the two materials are collected in real time, parameters and speed are dynamically adjusted in combination with the model, dynamic collaborative forming is achieved, shearing and compacting are optimized, interface cementation and structure homogenization are promoted, and performance is improved. Compared with a traditional process, the cracking risk is reduced.

Described is a device for removal of excess material from a test sample. The test sample may be used in an instrument for measurement of rheological and mechanical properties sample properties. The device includes a test geometry and a trimming ring. The test geometry includes a lower geometry and upper geometry each having a circular outer edge and being centered on an axis of rotation. The trimming ring has a sidewall, a ring axis coincident with the axis of rotation and at least one cutting edge disposed along at least a portion of a circumference of the trimming ring at a diameter that is at least as great as a diameter of one or both the lower geometry and the upper geometry. The device further includes an actuator coupled to the trimming ring and configured to translate the trimming ring in a direction parallel to the axis of rotation.

The invention discloses a ceramic aluminum alloy melt solid-phase rheology process, and relates to the technical field of melt solid-phase rheology. Comprising the following steps that a ceramic aluminum alloy raw material is melted at the temperature of 700-850 DEG C, electromagnetic induction heating (50-100 kHz) is utilized, the temperature fluctuation is controlled within + / -5 DEG C, and smelting is conducted for 30-60 minutes; 5%-20% of ceramic particles with the particle size being 10-100 microns are added, and stirring is conducted at the temperature of 800-900 DEG C (300-600 r / min, pulse type adding, 1-5 Hz); cooling to 550-650 DEG C at a speed of 10-30 DEG C / min, applying a pressure of 50-150 MPa, maintaining the pressure for 10-30 minutes, and using a gradient mold; casting is conducted at the temperature of 600-700 DEG C, and ultrasonic vibration assistance is conducted (2-5 kW, 20-40 kHz). According to the process, the problems of ceramic particle dispersion and interface bonding can be solved, the material performance is improved, the structure is refined, the tensile strength, the yield strength and the ductility are improved, the production efficiency and cost are optimized, and the stability is enhanced.

The invention relates to the technical field of oil and gas field development engineering, carbon storage engineering, underground hydrogen storage technology, underground fluid seepage mechanical experiment technology and rock core displacement simulation devices, and particularly discloses a variable-diameter rock core displacement simulation device and method for simulating underground fluid migration in a near wellbore area. In order to solve the problem that a traditional equal-diameter rock core displacement device cannot simulate sudden drop of flow velocity and pressure gradient when fluid in a near wellbore zone flows radially, the device adopts a variable-diameter rock core design, the diameter of the variable-diameter rock core is gradually increased in the flowing direction, and a back pressure control system, a confining pressure system and a multi-point pressure measuring structure are matched. Under the fixed injection flow, the cross sectional area of the rock core is increased, so that the Darcy flow velocity and the pressure gradient are suddenly reduced from the injection end to the output end, and the flowing environment of the immediate vicinity of a wellbore is directly reproduced. The device can directly and efficiently simulate and test the phase state behavior, rheological property and seepage law of complex fluid under the condition of sudden change of the flow velocity and pressure gradient in the immediate vicinity of wellbore, and the engineering representativeness of experimental data is remarkably improved.