160 results about "Compression test" patented technology

The invention discloses a concrete quality detection device, and relates to the technical field of concrete detection, the concrete quality detection device comprises a detection table and a fixing cylinder, the fixing cylinder is installed at the center position of the detection table in a penetrating manner, a supporting seat is installed at the position, located on the rear side of the fixing cylinder, of the detection table, and a hydraulic cylinder is installed at the top of the supporting seat; the movable end of the hydraulic cylinder is connected with a pressing plate, and an auxiliary mechanism is arranged in the fixed cylinder and used for transferring a concrete block sample and cleaning the crushed concrete block sample. And the orientation of the concrete block sample is adjusted, so that the polished flat surface is in contact with the pressing surface of the pressing plate and the bearing surface of the bearing plate, uniform pressure application to the concrete block sample during compression resistance detection is ensured, and the situation that detection data are wrong due to the fact that pressure intensively acts on convex points of the concrete block sample is avoided.

The invention discloses a partition dot matrix filling air rudder lightweight design method. The method mainly comprises three parts of establishment of a dot matrix unit cell equivalent mechanical performance proxy model, topological optimization design of an air rudder structure and optimization design of dot matrix filling parameters. Comparing compression tests of different rod diameters with simulation results of variable cross-section beam units with different parameters, and searching optimal beam unit cross-section parameters to construct and calculate a lattice unit cell equivalent mechanical performance agent model; structure topological optimization design is carried out on the determined air rudder appearance and load conditions, dot matrix filling area division is carried out on a design area according to a topological optimization result, and the design area can be divided into areas with different filling densities according to design requirements; and establishing a parameterized finite element model for the dot matrix filling structure and the air rudder model, and performing optimization design on rod diameters of different partitions on the basis to obtain a final dot matrix filling design model.

The invention discloses a test device for measuring the compression strength of a composite material plate, which comprises an upper box body and a lower box body, a guide column is arranged between the upper box body and the lower box body, an upper clamping assembly is arranged at the lower end of the upper box body, a lower clamping assembly is arranged at the upper end of the lower box body, and the upper clamping assembly and the lower clamping assembly have the same structure and opposite installation directions. The upper clamping assembly or the lower clamping assembly comprises two wedge-shaped clamping block units which are oppositely arranged, and the end part of the test piece is clamped between the two wedge-shaped clamping block units. The invention also discloses a test method for measuring the compression strength of the composite material plate. The test device can stably work for a long time in high and low temperature environments, meets the test requirements of a compression test, adopts a split design, is rapid in clamping, can effectively resist bending and torsional deformation, improves the test efficiency and accuracy, keeps reliable clamping all the time in the test process, and is simple in structure and convenient to operate. And the problem of clamping failure caused by thermal expansion and cold contraction is effectively solved.

The utility model belongs to the technical field of composite material structure test, and discloses an axial compression test fixture, which comprises a base, two side support pieces, a first clamping assembly and an anti-instability assembly, the two side support pieces are oppositely arranged on the base, a composite material is arranged between the two side support pieces, and the anti-instability assembly comprises two first anti-instability pieces and two second anti-instability pieces. Each first anti-instability piece comprises two separated first abutting parts, the distance between the two first abutting parts is larger than the damage range of the side face of the composite material, the two first anti-instability pieces are arranged on the two sides, in the second direction, of the composite material and close to the impacted side face of the composite material, and the second anti-instability pieces correspond to the first anti-instability pieces in a spaced mode; the first anti-instability piece and the second anti-instability piece are fixed to the two side supporting pieces respectively. The first clamping assembly can clamp the top of the composite material. The axial compression test clamp can be used for clamping a composite material subjected to side impact, and the problem that the accuracy of compression test data obtained after the composite material is subjected to side impact is not high is solved.

The invention provides a plate tension-compression buckling-restrained clamping device and a working method, relates to the field of tension-compression tests, and aims to solve the problem that data errors are easy to introduce by adopting a buckling-restrained structure during compression of a plate in a tension-compression cycle test. The elastic piece acts on the lower clamping plate through elastic force, so that the working area continuously restrains the parallel section of the sample, buckling instability of the parallel section in the thickness direction during compression is prevented, it is guaranteed that deformation is in-plane deformation all the time, the sample slides relative to the working area during tension and compression circulation, and sliding friction force can be reduced through the antifriction layer at the contact position of the lower clamping plate. The constraint force transmitted by the elastic piece is measured by the force sensor in real time, and the data can reflect the constraint strength and potential friction influence, so that subsequent correction of compression deformation data is facilitated, and errors are reduced.

A comprehensive mechanical property test board for a hinged bogie of a trackless carry-scraper relates to the technical field of mechanical property test and comprises an integrated platform which is respectively provided with a tensile compression test assembly and a torsion test assembly; the tension and compression test assembly comprises a supporting rack, a mounting side plate is fixed on the upper surface of the supporting rack, and a tension and compression loading module is telescopically arranged on the mounting side plate; the tension and compression loading module comprises a compression jacking head, and a pressure sensor is arranged on the side end face of the compression jacking head; a stretching chuck is fixed to the peripheral wall, close to the tail end, of the compression jacking head, four stretching clamping jaws are arranged on the stretching chuck in a sliding and telescopic mode, and tension sensors are arranged on the stretching clamping jaws. The test board solves the problems of dispersed test, low efficiency, manual dependence, insufficient precision, unstable platform, poor universality and the like when comprehensive mechanical property test is carried out on the hinged bogie of the trackless carry-scraper in the prior art.

The utility model discloses an endurance test device for a dust cover. The endurance test device comprises a rack, a first telescopic device and a second telescopic device, a placing plate is arranged in the middle of the rack, and the first telescopic device and the second telescopic device are mounted above and below the placing plate respectively; the second telescopic device is suitable for upwards penetrating through the placing plate so as to be used for positioning and sleeving the dustproof cover to be tested; and the first telescopic device is suitable for pressing the top of the positioned dust cover downwards and driving the dust cover to be subjected to repeated compression deformation relative to the placing plate through reciprocating motion. The dustproof cover testing device has the beneficial effects that compared with an existing dustproof cover testing device, the dustproof cover testing device can effectively test the dustproof cover in the folding resistance aspect. And a high-strength compression test can be performed on the dust cover through the first telescopic device and the second telescopic device, so that whether the dust cover is folded or not is subjected to a high-strength test.

The invention is suitable for the technical field of nuclear power, and provides a containment pressure test control method and device and electronic equipment, and the method comprises the steps: receiving a test instruction for carrying out a pressure test on a containment; and if the test instruction is an instruction for performing pressure relief treatment on the containment vessel, controlling a corresponding regulating valve according to a predetermined opening degree of the regulating valve of a nuclear auxiliary plant ventilation system DVN so as to guide gas of the containment vessel to enter the DVN system through a containment vessel ventilation system EBA to be discharged. By means of the method, the duration needed by the pressing test can be shortened, and the operation efficiency of the unit is improved.

1. Name of this design product: Photovoltaic foundation pile compression test bracket. 2. Purpose of this design: For compressive strength testing of photovoltaic foundation piles. 3. The key design elements of this product are its shape, pattern, and their combination. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses a macro-micro feature coupled rock triaxial statistical damage constitutive model construction method. The method comprises the following steps: S1, preparing a triaxial test rock sample; s2, carrying out a compression test to obtain a stress-strain relationship and an acoustic emission ringing count so as to obtain a test curve; s3, calculating a damage proportionality coefficient; s4, a damage variable is calculated, and a preliminary damage constitutive model is obtained; s5, according to the test curve, the preliminary damage constitutive model and counting, obtaining a correction coefficient and correcting the correction coefficient to obtain a corrected constitutive model; s6, solving and correcting constitutive model parameters; s7, constructing a constitutive model effect evaluation index; and S8, obtaining a constitutive model according to the parameters, and performing precision verification on the constitutive model according to the evaluation indexes. According to the macroscopic and microcosmic feature coupled rock triaxial statistical damage constitutive model construction method, the problem that the whole rock damage evolution process is difficult to accurately reflect due to the fact that an existing model is insufficient in description of post-peak stress drop and pre-peak softening compaction features of rock is solved.

The invention discloses a gluing tool for a composite material compression sample and a manufacturing method of the gluing tool, and relates to the technical field of composite material manufacturing. The gluing tool for the composite material compression test sample is used for gluing a composite material compression test plate and a reinforcing sheet and comprises a bottom plate, a supporting assembly is arranged on the bottom plate, at least one glue overflowing groove is formed in the bottom plate, and the glue overflowing grooves are located in the periphery of the composite material compression test plate placed on the bottom plate; the pressurizing assembly comprises a pressurizing plate and a pressurizing part, the fixed end of the pressurizing part is connected with the supporting assembly, and the free end of the pressurizing part is connected with the pressurizing plate. According to the gluing tool for the composite material compression test sample, the pressurization assembly pushes the pressurization plate to pressurize the composite material compression test plate and the reinforcing piece, the gluing quality of the composite material compression test plate and the reinforcing piece is guaranteed, extruded residual glue is contained in the glue overflowing groove, and the cleanliness of the periphery of the composite material compression test plate is guaranteed.

The utility model discloses an assembly type hydraulic characteristic test bench, which comprises an experiment box, an experiment pedestal and an electric lifting mechanism, the inner top of the experiment pedestal is provided with a plurality of groups of placing clamping grooves, the inner bottoms of the plurality of groups of placing clamping grooves are in sliding clamping connection with support top plates, the bottom ends of the support top plates are symmetrically connected with extrusion push rods, and the extrusion push rods are in sliding clamping connection with the support top plates. The outer side of the extrusion push rod is sleeved with a spring, the bottom extending end of the extrusion push rod is connected with a sensing sliding block, a pressure sensing detection table is installed at the inner bottom of the experiment table base, a plurality of sets of sensing empty grooves are evenly formed in the pressure sensing detection table, and a hydraulic guide pressure box is arranged in the experiment box; the beneficial effects of the utility model are that through the integrated extrusion impact compression resistance test and the integrated multi-group compression liquid injection hydraulic test structure, the detection cost is reduced, the detection diversity is improved, the manual operation is reduced, and the use convenience and the test efficiency are improved.

The utility model discloses a composite material compression test piece positioning tool which comprises a positioning block assembly, the positioning block assembly comprises an upper positioning block and a lower positioning block, and opposite plate surfaces of the upper positioning block and the lower positioning block are respectively provided with positioning raised lines corresponding to an upper notch and a lower notch; reinforcing sheet placing areas are respectively formed on two sides, corresponding to the positioning raised lines, of the upper positioning block and the lower positioning block; the baffle assembly comprises a left side baffle and a right side baffle, and the left side baffle and the right side baffle are arranged on the left side and the right side of the positioning block assembly respectively and connected with the upper positioning block and the lower positioning block through fasteners respectively; the positioning pin assembly comprises a plurality of positioning pins, a plurality of vertically corresponding positioning grooves are formed in the front ends and the rear ends of the upper positioning block and the lower positioning block respectively, and the positioning pins are inserted into the corresponding positioning grooves. According to the utility model, the symmetry of two reinforcing sheets is ensured, the stability of the reinforcing sheets in the positioning process is ensured, and the precision of a test piece is improved.

The invention discloses a method for predicting the critical drop impact damage height of EPE net cover packaged crown pears. The method comprises the following steps: S1, carrying out a quasi-static tensile experiment on an EPE net cover material; s2, carrying out a compression experiment on the crown pear pulp; s3, establishing an EPE net cover material constitutive model; s4, establishing a crown pear pulp material constitutive model, and finding out a critical damage value of the crown pear pulp material constitutive model; s5, establishing a three-dimensional model of the EPE net cover packaged crown pears; s6, establishing a finite element model of the EPE net cover packaged crown pears, and performing drop impact simulation; s7, testing the maximum impact load of the crown pears through a drop experiment; s8, comparing drop experiment data to verify the validity of the model; and S9, inputting the density, the stress-strain curve, the elastic modulus and other parameters of the EPE net cover material and the crown pears into the model to obtain a critical impact damage height prediction value of the EPE net cover packaged crown pears. The method provided by the invention can quickly and accurately predict the critical impact damage height of the crown pear, and provides reference for the net cover buffer design of the crown pear.

The application discloses a method for predicting mechanical properties of a nickel-titanium alloy part based on deep learning, and comprises the following steps: determining initial characteristics of the nickel-titanium alloy required by a mechanical experiment; manufacturing two different nickel-titanium alloy parts, respectively performing tensile and compression tests on the samples, collecting corresponding data, and forming an initial data set by combining all the collected data with printing parameter data; pre-processing the initial data, dividing the initial data into a training set and a test set according to a proportion, using printing parameters of additive manufacturing as input values of a deep learning model, using performance parameters of the mechanical experiment in the data set as output values of the deep learning model, constructing a mechanical property prediction model of the nickel-titanium alloy, training the mechanical property prediction model by using the training set data, and testing the mechanical property prediction model by using the test set data after the training is completed; and the application can predict the mechanical properties of the nickel-titanium alloy with high accuracy and improve the research efficiency of the nickel-titanium alloy.

This invention discloses a method for fabricating and loading compression specimens of staged construction steel-concrete composite columns, belonging to the field of civil engineering technology. It includes a steel-concrete composite column, a reinforcing cage, steel strands, anchorages, and steel plates. The steel-concrete composite column comprises an outer concrete layer and a steel-concrete core, with the steel tube and core concrete core being of different cross-sectional shapes (circular or square). This invention applies the initial load to the staged construction steel-concrete composite column before the outer concrete is poured by pre-tensioning the steel strands, effectively realizing the true stress state of the staged construction composite column. It allows for the simple testing of the compressive bearing capacity of staged construction steel-concrete composite columns without requiring long-term use of testing equipment.

The invention relates to the technical field of sealant testing, and particularly discloses a building sealant compression performance testing device which comprises a workbench, a second supporting rod is installed at the top of the workbench, first supporting rods are installed at the two ends of the bottom of the second supporting rod, and the bottoms of the first supporting rods are connected with the top of the workbench. The bottom of the second supporting rod is movably connected with a third supporting rod, and the third supporting rod is provided with a measuring mechanism. According to the gluing device, the rotating plate, the movable plate and the clamping plates are arranged, the two clamping plates clamp and fix the two base plates, the rotating plate abuts against the two sides of the two base plates, the bottoms of the base plates abut against the top of the workbench, and a worker can use a gluing tool to conduct gluing on the portion between the two base plates from the tops of the two base plates; therefore, the preparation work of the substrate and the sealant before the sealant is subjected to the extrusion test is completed, and the process complexity and the labor intensity of workers are reduced.

The invention belongs to a luggage performance test device, and particularly relates to a draw-bar box compression resistance test tool, which comprises a first linear driving unit; the force application assembly comprises a universal part and a replaceable part, and the replaceable part comprises a pressing head; the pressure detection unit is arranged between the power output end of the first linear driving unit and the universal part; the position detection unit is used for detecting the real-time position of the power output end of the first linear driving unit; and the controller is electrically connected with the pressure detection unit and the position detection unit. According to the invention, the first position information when the pressure detection signal begins to change and the second position information when the preset pressure is reached can be accurately captured in the pressure applying process, so that the deformation quantity of the shell under the specific pressure can be accurately calculated, and a quantitative relation model between the pressure and the deformation quantity can be conveniently established; and key data support and scientific basis are provided for lightweight design, material optimization and structural reinforcement of the shell.

This invention discloses a Hopkinson bar tension / compression system based on electromagnetic coil acceleration. The system includes an electromagnetic coil winding, an armature, and a Hopkinson bar. The armature is sleeved outside the incident rod of the Hopkinson bar. The electromagnetic coil winding is disposed outside the armature. When the electromagnetic coil winding is energized, it drives the armature to impact the end of the incident rod furthest from the test sample to perform a Hopkinson bar tension test, or drives the armature to impact the end of the incident rod closest to the test sample to perform a Hopkinson bar compression test. This invention uses an electromagnetic coil winding to drive the armature to accelerate and impact the incident rod, thereby loading a stress wave. Compared to the method of compressed gas, the impact speed at the armature outlet is faster, and the speed of the incident rod can be precisely controlled simply by controlling the magnitude of the current within the electromagnetic coil winding.

The invention relates to the technical field of civil engineering detection, and discloses a dry density-based fine-grained soil compression modulus rapid determination method, which comprises the following steps: carrying out sample preparation and standardization on target fine-grained soil according to fixed dry soil mass and a unified initial height value; executing a limit compression test on the sample, and collecting a load-displacement data sequence until the curve slope is sharply increased and is close to be vertical; processing the load-displacement data sequence, and constructing a dry density-compression modulus reference relation model of the target fine-grained soil; measuring the on-site dry density of the on-site to-be-measured compacted soil body which is the same as the target fine-grained soil; and substituting the field dry density into the reference relation model, and calculating and determining the field compression modulus. According to the method, the dry density-compression modulus reference model of the soil is provided through a one-way extreme compaction experiment and digital model construction, and rapid and accurate measurement of the compression modulus is realized.

The application belongs to the technical field of concrete strength detection, and relates to a micro core sample method strength conversion method and system for UHPC. The method comprises the following steps: preparing a plurality of different micro core sample samples and pouring a plurality of standard test piece samples matched with the micro core sample samples; performing a compression test on all the micro core sample samples and the standard test piece samples to calculate a measured conversion coefficient; constructing a mathematical model of a predicted conversion coefficient, determining a parameter to be calibrated and a value range of the parameter, constructing an objective function, performing parameter inversion by using a differential evolution algorithm and a limited memory quasi-Newton method, determining a calibrated value of the parameter, and updating the mathematical model of the predicted conversion coefficient; taking a micro core sample from a concrete entity structure on site, performing a compression test on the micro core sample, calculating the predicted conversion coefficient, and then calculating a standard test piece compression strength. The application can accurately establish a conversion relationship between the micro core sample compression strength and the standard test piece compression strength, and improve the strength detection precision of the UHPC entity structure.

The embodiment of the invention provides a construction quality detection method, system and device for solidified soil, and relates to the technical field of building construction detection. The construction quality detection method for the solidified soil comprises the following steps: after construction of to-be-detected solidified soil is completed, immediately obtaining resistivity data of the to-be-detected solidified soil; determining sampling position depth information according to the probe cable length data; collecting the solidified soil to be detected according to the sampling position information; carrying out a compression test on the solidified soil at the age of 1 day to obtain uniaxial compression strength data at the age of 1 day; and evaluating the construction quality of the to-be-detected solidified soil according to the resistivity data and the uniaxial compression strength data of the one-day age, and obtaining a quality detection result. According to the construction quality detection method for the solidified soil, the technical effect of improving the quality detection efficiency of the solidified soil can be achieved.

The invention discloses an ice and snow material mechanical property testing device, and relates to the field of testing or analyzing materials by means of measuring physical properties of the materials.The two sides of the outer surface wall of a coupler are connected with a set of second telescopic rods, one side of the outer surface wall of the set of second telescopic rods is connected with a clamping frame, and one side of the outer surface wall of the coupler is connected with a first telescopic rod; a transmission shaft is rotationally connected to one side of the outer surface wall of the first telescopic rod, and the clamping and stretching mechanism is adaptive to ice and snow samples of different specifications and shapes through the adjustable design of the second telescopic rod and the clamping frame; a third telescopic rod and an adjusting knob of the compression mechanism can adjust the pressure range and the contact area of the compression end to meet the compression test requirements of different samples, an anti-skid plate of the clamping mechanism prevents the samples from slipping in the stretching process, it is ensured that force value transmission is accurate, the limitation that ice and snow samples of different specifications and shapes are difficult to adapt is effectively solved, and the test efficiency is improved. A traditional device needs to be matched with multiple devices, and a sample is prone to damage in the transferring process.

The application discloses a high-temperature SHPB dynamic compression test device, wherein a gas gun and a heating furnace are fixed on a rack, an incident rod and a transmission rod are arranged on the two sides of the heating furnace, strain gauges are attached to the incident rod and the transmission rod, a sample is arranged in the heating furnace, a plurality of fasteners are fixed on the rack and arranged on the two sides of the heating furnace, the incident rod and the transmission rod are fixed on each group of fasteners, two locking blocks are fixed on the incident rod and the transmission rod, two driving members are slidingly connected to the rack and can be horizontally rotated, driving blocks are arranged on the driving members, the two driving members are driven to linearly displace by an electric driving mechanism arranged on the rack, the driving blocks abut against the corresponding locking blocks to drive the incident rod and the transmission rod to linearly displace towards the heating furnace during the linear displacement of the driving members, and the driving members are horizontally rotated by 180 DEG, so that the incident rod and the transmission rod linearly displace away from the heating furnace. The application solves the problem of long test time and influence on test results caused by manual push rods in the traditional device.

The invention relates to the technical field of concrete compression test equipment, and discloses a commercial concrete compression performance detection device which comprises a mounting base, a control box is mounted at the top of the mounting base, and a pressure test bench is mounted at the top of the mounting base. Through an adjusting frame arranged on the top of the pressure test bench and a first driving screw and a second driving screw arranged on the top of the adjusting frame, an adjusting plate moves along the outer walls of the first driving screw and the second driving screw respectively, and in the process that the adjusting plate moves towards the middle ends of the first driving screw and the second driving screw, the adjusting plate moves towards the middle ends of the first driving screw and the second driving screw. The test block can be pushed to move, so that the position of the test block is adjusted, transverse position adjustment is performed firstly, then longitudinal position adjustment is performed, the test block is located in the center of the top of the pressure test bed, then a pressure experiment is performed, and it is ensured that pressure can be uniformly released to the top of the test block.

The present application relates to the technical field of clamp loading and unloading, and particularly relates to an automatic loading and unloading system and method of a hole compression test clamp. In the system, a positioning mechanism, a discharging mechanism, a gripper and a mechanical arm are included, the mechanical arm is used to drive the gripper to clamp the hole compression test clamp with a test piece; the hole compression test clamp includes two long clamping plates, two short clamping plates and two support plates, one long clamping plate, one short clamping plate and one support plate are fixed to each other through fasteners, the other long clamping plate, the other short clamping plate and the other support plate are fixed to each other through fasteners, and the two long clamping plates and the two short clamping plates are used to clamp the test piece made of fiber composite material; the positioning mechanism is used to position the hole compression test clamp by abutting against the side surfaces of the long clamping plates and the short clamping plates; and the discharging mechanism is used to dismount the test piece from between the two long clamping plates and between the two short clamping plates. The scheme can improve the loading and unloading efficiency of the hole compression test clamp.

The utility model discloses concrete fracture resistance and compression resistance test equipment, which relates to the technical field of concrete detection and comprises a fixed base, hydraulic cylinder mechanisms fixedly connected above the left side and the right side of the fixed base, a movable working table slidably connected to the inner wall above the fixed base, and a rotating mechanism in threaded connection to the inner wall below the movable working table. And the lower portion of the rotating mechanism is fixedly connected with the upper portion of the fixed base, and the front side and the rear side of the upper portion of the fixed base are fixedly connected with clamping mechanisms. According to the utility model, the movable working table is matched with the rotating mechanism to adapt to concrete test pieces with various lengths and be compatible with various types of tests, so that the problem that the equipment is incompatible due to different sizes of the test pieces is effectively solved, and the equipment can be used for both a bending test and a compression test, so that the test efficiency is improved. And test bodies with different sizes can be fixed through the clamping mechanism, so that the test is carried out under a stable condition, and the reliability of test data is improved.

The utility model relates to the technical field of concrete detection equipment, and particularly discloses a concrete compression test device which comprises a base, stand columns, an upper beam, a lead screw, an oil cylinder, a control box, a surrounding baffle and a cover plate, a plurality of stand columns are longitudinally fixed to the top of the base, the tops of the stand columns are fixedly connected with the upper beam, and the upper beam is fixedly connected with the lead screw. A threaded seat is longitudinally fixed in the upper beam, the lead screw is in threaded connection in the threaded seat, an upper pressing plate is fixedly connected to the bottom of the lead screw, a cylinder body of the oil cylinder is longitudinally fixed on the base, a lower pressing plate is fixedly connected to a piston rod of the oil cylinder, and the oil cylinder is electrically connected with the control box. The enclosure plate is arranged on the lower pressing plate in a lap joint mode, the opening side of the enclosure plate faces forwards, a cover plate is movably installed at the front end of the enclosure plate, and concrete fragments can be effectively prevented from splashing, and the difficulty of cleaning the fragments is reduced.

The Y-shaped sealing test tool comprises a Y-shaped pipe, a pressure gauge control valve and a pressure reduction gauge control valve are installed on two pipes on the upper portion of the Y-shaped pipe respectively, and a pressure gauge and a pressure reduction gauge are correspondingly installed at the ends of the Y-shaped pipe; a pipe opening mask is arranged at the end of a lower pipe of the Y-shaped pipe in a penetrating mode and used for being connected with a vent pipe flange. The tool is easy to manufacture and high in practicability, the universality of the tool can be enhanced through the detachable design, and the safety and reliability of the tool are guaranteed through the pressure reduction safety device.

The invention belongs to the technical field of metal material hot working, and provides a method and system for constructing a thermal deformation constitutive model of a spray-formed 2195 aluminum-lithium alloy, and the method comprises the following steps: obtaining flow stress data according to a hot compression test; correcting the flow stress data to obtain calibrated flow stress data; identifying a peak stress and a material constant according to the calibrated flow stress data, and summarizing a Z parameter expression; introducing a strain influence function according to the material constant, and fitting a strain function; and substituting the strain function into the Z parameter expression to obtain a constitutive model. According to the method, the high-precision constitutive model considering the strain influence is established for the extrusion state spray forming 2195 aluminum lithium alloy for the first time, material parameters under different strains are identified through a system, the applicability of the model in a large deformation forming process is remarkably improved, and the prediction error is lower than 5%; a reliable theoretical tool is provided for formulating a hot working process, the trial and error cost is reduced, and the product quality and the structure uniformity are improved.