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Online detection method and system for pole piece extension information and roller press
PendingCN120009087AElectrode rolling/calenderingInvestigating material ductilityElectrical batteryControl engineering
The embodiment of the invention provides an online detection method and system for extension information of a pole piece and a roller press, relates to the technical field of battery production, and at least solves the problem that the extension rate of an empty foil area is detected mainly through offline detection, manual visual detection and the like in the related technology. The problems of low detection efficiency, poor real-time performance, low accuracy, much material waste and the like exist in the prior art. The online detection method comprises the steps that extension information of a current pole piece is determined based on first identification information of the current pole piece and second identification information of the current pole piece, and the first identification information is determined based on a first image, collected by a first visual detection system of the roller press, of the current pole piece; the roller press comprises an unwinding mechanism, a marking mechanism, a first visual detection system, a rolling mechanism, an extension mechanism, a second visual detection system and a winding mechanism which are sequentially arranged in the conveying direction of the pole piece, and the second identification information is determined based on a second image, collected by the second visual detection system, of the current pole piece.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Titanium alloy wire performance detection method, equipment and system
ActiveCN120628809AAnalysing solids using sonic/ultrasonic/infrasonic wavesMaterial strength using tensile/compressive forcesMedical equipmentFrequency spectrum
The invention relates to the technical field of titanium alloy detection, and discloses a titanium alloy wire performance detection method, equipment and system. The method comprises the following steps: acquiring real-time force value displacement data of a tensile test and echo signal data of ultrasonic detection, and processing to obtain smooth force value displacement data and spectrum characteristic parameters; performing feature layer fusion on the yield strength, the tensile strength, the peak frequency and the amplitude attenuation rate to construct a first multi-dimensional feature matrix; inputting a pre-trained deep belief network model, and predicting mechanical properties such as elongation and hardness value; and comparing with a preset threshold value, marking unqualified items and generating a detection report. According to the method, through multi-source data fusion and advanced algorithm processing, the comprehensiveness and accuracy of detection are improved, efficient evaluation of the performance of the titanium alloy wire is achieved, and the method is suitable for the strict detection requirements for the quality of the titanium alloy wire in the fields of aerospace, medical instruments and the like.
Owner:BAOJI YONGXING NON FERROUS METAL MATERIALS CO LTD
Cloth elasticity detection device for clothing manufacturing
ActiveCN120102328AInvestigating material ductilityManufacturing computing systemsStructural engineeringMechanical engineering
The invention relates to the technical field of garment fabric detection equipment, in particular to a fabric elasticity detection device for garment manufacturing, which comprises a base, a detection frame body is fixedly connected to the upper end surface of the base, an optical detector is fixedly mounted on the inner top surface of the detection frame body, and two hollow extension rollers are slidably connected to the side wall of the detection frame body. The two hollow extension rollers are used for fixing, extending and stretching cloth. According to the invention, the hollow extension roller can be used for carrying out winding type adsorption fixation on the garment fabric, the consistency of the overall stretching degree of the garment fabric can be effectively maintained, gradient continuous segmented pressure detection can be carried out on the garment fabric, the pressure detection operation of the garment fabric is simplified, the elasticity detection efficiency of the garment fabric is improved, and the detection precision is improved. Meanwhile, intermittent stretching and extension of the garment fabric can be achieved, corresponding segmented pressure detection can be conducted on the fabric under different extension conditions, and the elastic performance of the garment fabric can be reflected more accurately.
Owner:GANZHOU TENGYE CLOTHING CO LTD
Method and device for obtaining forming limit of metal sheet
PendingEP4517294A1Material strength using steady bending forcesInvestigating material ductilityStructural engineeringMetal sheet
In a metal sheet forming limit acquisition method according to the present invention, a test piece 100 of a metal sheet is bulge-formed at various bending deformation degrees by utilization of a plurality of hemispherical punches 11a having different curvatures at tip portions 11a1, and a forming limit of the metal sheet which limit is represented by a relationship between a bending deformation degree of the bulge-formed test piece 100 and a maximum principal strain and a minimum principal strain of the test piece 100 bulge-formed at the bending deformation degrees is acquired.
Owner:JFE STEEL CORP
Force ductility measuring instrument for asphalt material
The invention discloses a force ductility measuring instrument for an asphalt material, and relates to the technical field of detection equipment. Comprising a water bath box, a fixing plate is arranged at one end of an inner cavity of the water bath box, a plurality of evenly-distributed fixing columns A are fixedly arranged on the upper portion of the fixing plate, a stretching part is arranged in the inner cavity of the water bath box, a plurality of evenly-distributed asphalt samples are arranged between the fixing columns A and the stretching part, and the stretching part is connected with a control center. The adjusting assembly can adjust the distance between the fixed plate and the sliding assembly, so that the asphalt sample cannot be bent and stretched, and the ductility detection result of the asphalt sample is effectively improved; when a top block of the sliding assembly is in contact with a pressure sensor, the control center starts to record displacement data of the asphalt sample, and the ductility detection result of the asphalt sample is further improved; the sliding assembly can effectively improve the stress detection result of the asphalt ductility detector on the asphalt sample; the pressure sensor is matched with the control center to record the displacement distance of the fractured asphalt sample, manual operation recording is not needed, and operation is easy and convenient.
Owner:广东省路桥建设发展有限公司 +1
Method for identifying constriction limit strain of metal plate
A method for identifying a necking limit strain of a metal sheet according to the present invention includes a step (S1) of measuring the distribution of strain in a tensile orthogonal direction in a tensile deformation process of a notch root 5a for two or more types of sheet specimens 1 having a notch geometry 5 in a portion of a sheet edge 3; a step (S3) of obtaining a strain increment ratio of the notch root 5a in the tensile deformation process and a strain gradient in the tensile orthogonal direction; a step (S5) of obtaining necking limit strain at which necking occurs in the notch root 5a based on the strain increment ratio in the tensile deformation process; and a step (S7) of identifying the necking limit strain as a function of the strain gradient from the relation between the necking limit strain obtained for the two or more types of sheet specimens 1 and the strain gradient at that time.
Owner:JFE STEEL CORP
Battery diaphragm extension device
InactiveCN119935768ASupporting apparatusInvestigating material ductilityAir volumeElectrical battery
The invention belongs to the technical field of battery manufacturing, and particularly relates to a battery diaphragm extending device which comprises a lifting device fixedly assembled at the top of a base station, a lifting table is fixedly assembled on one side of the lifting device, and connecting plates are fixedly assembled at the top of the base station and the bottom of the lifting table. A simulation bin for enclosing a diaphragm is fixedly connected between the two connecting plates; according to the invention, through the movement of the diaphragm discharging frame, a plurality of diaphragms can be brought into the simulation bin in batches to realize the batch tensile test of the diaphragms, the opening and closing of the electromagnetic valve can be controlled, and a heating test solution in the multichannel sprayer is sprayed into the bin when the simulation bin is closed to realize the performance test of the diaphragms in a complex environment; the sealing door can be driven to control the on-off of the air volume of the suction filter, so that when the sealing door is closed and opened, the solution gas in the simulation bin is blocked and sucked respectively, the dispersion range of the solution gas is controlled, and the harm to a human body is prevented.
Owner:DONGGUAN YUNYUE NEW MATERIALS TECHNOLOGY CO LTD
Heat-treatment-free aluminum alloy casting production process
ActiveCN120425206AMaterial strength using tensile/compressive forcesInvestigating material ductilityInjection pressureIngot
The invention provides a heat treatment-free aluminum alloy casting production process, and belongs to the technical field of alloys, and the heat treatment-free aluminum alloy casting production process comprises the following steps: S1, alloy preparation; s2, smelting and refining are conducted, after pure aluminum ingots are molten, heating and mixing are conducted, powder spraying refining and degassing treatment are conducted, and the dosage of a refining agent accounts for 0.1%-0.3% of the mass of molten liquid; s3, die-casting forming is conducted, specifically, a high-vacuum die-casting process is adopted, the injection pressure is 80-150 MPa, the melt pouring temperature is 680-720 DEG C, and the die preheating temperature is 150-250 DEG C; s4, natural aging treatment; the specific parameters of the adding amount of a refining agent, the injection pressure and the pouring temperature are optimized through a three-factor three-level orthogonal test, the optimal machining process parameters are determined to be 0.20% of the refining agent, 120 MPa of the injection pressure and 700 DEG C of the pouring temperature by detecting the tensile strength, the ductility and the hardness of the alloy, at the moment, the tensile strength of the alloy is improved to 389 MPa, the ductility is improved to 8.5%, and the hardness is improved to HV65.8; and compared with the alloy before optimization, the alloy is increased by 9.0%, 26.8% and 2.3% respectively.
Owner:NINGBO BAIYI AUTOMOTIVE PARTS
Cable thermal extension test device
The invention relates to a cable thermal extension test device which comprises a rack and a clamping assembly, a set of supports are symmetrically arranged on the two sides of the upper portion of the rack, a driving assembly is arranged in the middle of the upper portion of the rack, movable adjusting assemblies are arranged in front of the supports and connected with the supports in a sliding mode, and rotating assemblies are arranged on the inner sides of the movable adjusting assemblies. The rotating assembly is in power connection with the driving assembly; the outer sides of the upper portions of the rotating assemblies are connected with low-gyroscopic-moment rotating joints installed on the rack through connecting frames, rotating chucks are arranged on the inner sides of the upper portions of the rotating assemblies, and clamping assemblies are clamped in the rotating chucks. A portal frame is arranged behind the support, an infrared heating pipe assembly is installed on the portal frame, a cable to be tested is arranged in the infrared heating pipe assembly, and the two ends of the cable to be tested are connected with clamping assemblies respectively; the clamping device has the advantages of being reasonable in structure, rapid and convenient to clamp, firm and reliable in clamping and high in practicability.
Owner:STATE GRID HENAN ELECTRIC POWER COMPANY ANYANG POWER SUPPLY +2
Multi-angle adjustable testing machine clamping device
ActiveCN223166468UMaterial strength using tensile/compressive forcesInvestigating material ductilityClassical mechanicsStructural engineering
The utility model discloses a multi-angle adjustable testing machine clamping device, and relates to the technical field of clamping devices. Comprising a bottom plate, symmetrically distributed moving seats are arranged over the bottom plate, rotating discs are rotationally arranged in the moving seats, a plurality of driving grooves distributed in an annular array are formed in the rotating discs, driving blocks are slidably arranged in the driving grooves, moving plates are fixedly arranged at one ends of the driving blocks, and fixed wheels are fixedly arranged at the ends, close to each other, of the moving plates; wherein driving rods are fixedly arranged at the ends, away from the fixed wheels, of the two moving plates, one end of each driving rod slidably penetrates through one side wall of the corresponding moving seat to be arranged outside, and a frame is fixedly arranged on the upper surface of the outer portion of the bottom plate. By driving the multiple fixing wheels to be tightly attached to the tail end of the cable, it can be ensured that the cable is clamped and fixed, the situation that the cable is loosened in the testing process is prevented, and the testing precision of the cable is improved.
Owner:SHANDONG JINGCHENG IND AUTOMATION EQUIP CO LTD
Zinc alloy extension detection device
ActiveCN222979318UMaterial strength using tensile/compressive forcesInvestigating material ductilityZinc alloysTensile testing
The utility model belongs to the technical field of alloy detection, and particularly relates to a zinc alloy extension detection device which comprises a working table, moving frames are connected to the two sides of the top of the working table in a sliding mode, clamping blocks are fixedly connected to the inner sides of the two moving frames, and pressing plates are connected to the interiors of the clamping blocks in a sliding mode. The utility model provides a zinc alloy extension detection device, and solves the problems that in the prior art, the detection of a zinc alloy material is generally carried out in a stretching manner, when a sample is stretched until the sample is fractured, the extension performance of the material is determined by measuring stress, a strain curve and a final fracture point, and the detection accuracy is high. However, a large amount of extrusion force is also applied to zinc alloy in daily use, an existing detection device cannot simultaneously carry out a pressure resistance test and a tensile test, and an external detection tool is needed to carry out a secondary test, so that time and labor are wasted, the detection efficiency is reduced, and the final detection accuracy is reduced.
Owner:JIAOZUO SHENGSHIDA LIGHT ALLOY TECH
Stretching head structure for viscosity and toughness test of high-viscosity asphalt
The utility model provides a stretching head structure for a viscosity and toughness test of high-viscosity asphalt, which relates to the technical field of asphalt tests and comprises a sample container and a connecting sleeve, a connecting rod is inserted into the inner surface of the connecting sleeve, and the bottom of the connecting rod is fixedly connected with a stretching head body. According to the utility model, the stretching head body can be accurately aligned with the center of a sample container under the matching of the support frame, the positioning hole and the positioning rod, and the position of the connecting rod in the connecting sleeve can be adjusted under the matching of the spring, the limiting rod, the adjusting hole and the sliding rod, so that the position of the stretching head body is adjusted; by adopting clamping adjustment, the problem that threaded connection needs to be replaced after being used for multiple times is avoided, under the assistance of the semi-sphere and the arc-shaped groove, the contact area between the stretching head body and an asphalt sample is increased, a certain stress dispersion effect can be achieved in the stretching process, and therefore the testing accuracy and stability are improved.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1
Method for testing performance of high-performance PE film
InactiveCN119688652AMaterial strength using tensile/compressive forcesTransmissivity measurementsConvertersTest performance
The invention provides a method for testing the performance of a high-performance PE film, and relates to the technical field of PE film testing. The method for testing the performance of the high-performance PE film comprises the following steps: S1, taking a PE film with the length and the width of 1m, clamping the four edges of the PE film by using a movable clamp, and horizontally spreading the PE film; s2, a movable point-shaped light source is installed below the PE film, and light rays generated by the point-shaped light source face the PE film; and S3, a movable photosensitive sensor is installed below the PE film and used for receiving light, and the photosensitive sensor is externally connected with a signal converter and a computer. According to the invention, by utilizing a single light transmission test, not only can the light transmission of the high-performance PE film be tested, but also the uniformity, ductility, tensile resistance, heat resistance, cold resistance, tear resistance and elongation at break of the high-performance PE film can be detected, so that the test cost is low, the test time is short, the data volume embodied by a single test is richer, and the test efficiency is improved. And the test is more comprehensive.
Owner:TONGCHENG JIASHENG PACKAGING CO LTD
Thin film tensile strength and elongation testing device
ActiveCN222913371UMaterial strength using tensile/compressive forcesInvestigating material ductilityThin membraneStructural engineering
Owner:KUNSHAN JINRUIAN ELECTRONIC TECH CO LTD
Finished product quality detection device for secondary aluminum ingot casting product
ActiveCN120160901AAnalysing solids using sonic/ultrasonic/infrasonic wavesMaterial strength using tensile/compressive forcesIngotDuctility
The invention relates to the field of secondary aluminum ingot product finished product quality detection, in particular to a secondary aluminum ingot product finished product quality detection device which comprises a shell. A partition plate is fixed in the shell, a translation assembly is arranged below the partition plate, each clamping assembly is provided with a hardness detection assembly, and three flaw detection assemblies and three deformation detection assemblies corresponding to the three centering assemblies respectively are arranged in the shell. During detection, an extrusion head is recessed into the end face of an aluminum ingot block under the pushing action of a first spring, and when the aluminum ingot block deforms due to stretching, second sliding rods located on the upper side and the lower side of the aluminum ingot block extend under the action of a third spring. The resistance value between the second sliding rod after extending and the second lantern ring is compared with the initial resistance value to obtain the telescopic length of the second sliding rod after the aluminum ingot block is deformed, then the ductility of the aluminum ingot block after being stretched is obtained, and the effect of multi-aspect detection is achieved in a matched mode.
Owner:JIANGSU HAIGUANG METAL
Die for measuring low-pressure casting solidification rate of aluminum alloy and implementation method of die
PendingCN119534542Araise quality standardsImprove quality and efficiencyMaterial analysis using wave/particle radiationMaterial heat developmentPressure castingThermocouple device
The invention discloses a mold for measuring the low-pressure casting solidification rate of aluminum alloy and an implementation method of the mold, and the method comprises the following steps: 1, installing a thermocouple, and calibrating the thermocouple; 2, defining experimental parameters, and adjusting a mold cooling system; 3, recording temperature data in real time, and analyzing and evaluating the temperature data; 4, cutting the standard mechanical sample, and carrying out mechanical property test and microstructure characterization; and 5, feeding back to production according to an experimental result, optimizing an experimental process, and improving the product quality. The temperature distribution in the casting can be accurately measured in real time, so that the solidification rate is indirectly controlled and measured, and the quality and the production efficiency of the casting are remarkably improved by monitoring the solidification process in real time.
Owner:YANSHAN UNIV +1
Press forming fracture determination method, device and program, and method for manufacturing press formed part
PendingEP4566737A4Geometric CADMaterial strength using steady bending forcesMechanical engineeringPhysics
A press forming fracture judgment method according to the present invention acquires a forming limit of a metal sheet which limit is expressed by a relationship between a maximum principal strain and a minimum principal strain of a test piece 100 bulge formed at various bending deformation degrees and a bending deformation degree (P1), and determines presence or absence of fracture generation in a press formed part based on the acquired forming limit of the metal sheet and the maximum principal strain, the minimum principal strain, and the bending deformation degree which are calculated for a press formed part (P3).
Owner:JFE STEEL CORP
Post-welding adjusting and repairing method for aluminum alloy bracket of railway vehicle
PendingCN121718809AShaping toolsMaterial strength using tensile/compressive forcesWelding residual stressStructural engineering
The invention discloses a post-welding adjusting and repairing method for an aluminum alloy bracket of a railway vehicle. The post-welding adjusting and repairing method comprises the steps that the first deformation amount of a deformation position is measured; preparing a plurality of first tensile samples, and performing flame heating adjustment at a preset flame heating temperature; performing a tensile test on the first tensile sample; establishing a relationship between the mechanical property and the flame heating temperature, and obtaining a target flame heating temperature; manufacturing a second tensile sample, and performing deformation treatment and mechanical adjustment treatment for preset times; performing a tensile test on the second tensile sample, establishing a relationship between the mechanical property and the times of deformation treatment and mechanical adjustment treatment, and obtaining a target mechanical adjustment time; flame heating adjustment and mechanical adjustment are conducted on the aluminum alloy bracket according to the target flame heating temperature and the target mechanical adjustment frequency; and manufacturing a fatigue sample, carrying out a fatigue test, and evaluating the safety of adjustment and repair. According to the method, flame heating adjustment and mechanical adjustment are combined, welding residual stress can be released, and deformation deviation can be accurately corrected.
Owner:青岛中车四方轨道车辆有限公司
Intelligent beam fiber strength tester and application method
ActiveCN116202875BMaterial strength using tensile/compressive forcesInvestigating material ductilityInformatizationCotton fibre
The present application relates to the technical field of cotton fiber detection. A kind of intelligent beam fiber strength tester, including cabinet, industrial computer, sliding table module is provided in cabinet, sectional material frame, air cylinder, beam fiber clamping mechanism, stepper motor, lever type pull rod, force sensor, displacement sensor, resistance detection plate, A / D acquisition conversion module;The application method of the tester, steps include: under normal environmental conditions, beam fiber clamping mechanism clamps fiber sample, obtains moisture regain R by resistance moisture regain conversion program conversion;Stepper motor drives lever type pull rod to stretch sample, data is made into the tensile curve F (e) of beam fiber sample-e by industrial computer, and machine learning model predicts the corrected breaking strength value and elongation rate.The present application is simple and reasonable in structure, can realize the quick and accurate measurement of cotton beam fiber breaking strength value and breaking elongation rate under different humidity conditions in normal environment, is high in informatization degree, economic and practical, and improves the accuracy of test result.
Owner:SHIHEZI UNIVERSITY
Malleability detection structure for PA66 plastic
ActiveCN222506048UPlastic recyclingInvestigating material ductilityElectric machineryStructural engineering
The utility model discloses a ductility detection structure for PA66 plastic, which belongs to the technical field of ductility detection of the PA66 plastic, and is characterized by comprising a fixed cabinet, the top of the fixed cabinet is provided with an annular groove, the top of the fixed cabinet is fixedly connected with a heating assembly, the front side of the fixed cabinet is rotatably connected with a protective plate, and the protective plate is fixedly connected with the annular groove. The bottom of the inner wall of the fixed cabinet is fixedly connected with a limiting box, the left side and the right side of the inner wall of the limiting box are rotationally connected with two-way screws, the surfaces of the two-way screws are rotationally connected with a fixed assembly, the surface of the fixed assembly is slidably connected with the inner wall of the limiting box, and the right side of the fixed cabinet is fixedly connected with a power motor. The problems that when an existing ductility detection structure is used for detecting PA66 plastic, most of the existing ductility detection structures can only detect the ductility of the PA66 plastic at the normal temperature, and consequently ductility detection data of the PA66 plastic are not accurate enough are solved.
Owner:XIAMEN YIKOMA TECH CO LTD
Card clothing production on-line detection device
PendingCN119643327AImprove scalabilityAdjust in timeMaterial strength using tensile/compressive forcesInvestigating material ductilityMechanical engineering
The invention discloses a card clothing production on-line detection device which comprises a conveying belt, a placing plate is arranged at one end of the conveying belt, vertical plates are arranged at the two ends of the placing plate, supporting legs are detachably connected to the positions, close to the edges of the two ends, of the bottom of the placing plate, a pressing plate is arranged above the placing plate, and the size of the pressing plate is the same as that of the placing plate. The card clothing detection device has the advantages that card clothing is conveyed to the placement plate through the conveying belt, at the moment, the two ends of the card clothing can enter the position between the movable clamping plate and the fixed clamping plate, in order to guarantee detection, the ends for clamping the movable clamping plate and the fixed clamping plate can be reserved during card clothing production, and whether the card clothing is removed or not can be selected according to needs after detection; after the ends are clamped, the double-end motor is started to drive the screw rod to rotate, so that the two vertical plates are controlled to be gradually away from the placing plate, card clothing can be pulled, detection of the ductility of the card clothing is achieved, obtained data are transmitted to a computer through a tension sensor, and timely adjustment is facilitated.
Owner:LIANYUNGANG LIANRUI CARD CLOTHING CO LTD
Simple device for drawing gauge length of aluminum alloy circular performance sample
The utility model discloses a simple device for drawing a gauge length of an aluminum alloy circular performance sample, which belongs to the technical field of gauge lengths of aluminum alloy samples, solves the problems that the operation is difficult and the marking is easy to generate errors when the gauge length of the aluminum alloy circular performance sample is manually made at present, and comprises a caliper bracket, a sample bracket and a caliper, a sliding rail is arranged on a caliper support bottom plate, vertical groove-shaped caliper support supporting rods are symmetrically arranged on the two sides of the bottom plate, spring columns are arranged at the bottoms in grooves of the caliper support supporting rods, and springs are arranged on the spring columns. A left sample holder supporting rod and a right sample holder supporting rod of the sample bracket are arranged on the slide rail in a sliding manner; the caliper is provided with a fixed measuring claw and a caliper outer measuring claw in a sliding mode, two sides of the caliper are lengthened to be provided with blank caliper bodies, and two ends of the blank caliper bodies are clamped in the caliper support supporting rod grooves in a sliding mode and abut against the tops of the springs. The marking of various scale distances is accurately realized, and the efficiency and the accuracy of marking the scale distances are greatly improved.
Owner:NORTHWEST ALUMINUM FABRICATION PLANT
Titanium alloy wire performance detection method, device and system
ActiveCN120628809BAnalysing solids using sonic/ultrasonic/infrasonic wavesMaterial strength using tensile/compressive forcesFrequency spectrumMulti source data
The application relates to the technical field of titanium alloy detection, and discloses a titanium alloy wire performance detection method, equipment and system. The method collects real-time force value displacement data of a tensile test and echo signal data of ultrasonic detection, obtains smooth force value displacement data and frequency spectrum characteristic parameters after processing, fuses yield strength and tensile strength with peak frequency and amplitude attenuation rate in a characteristic layer, and constructs a first multi-dimensional characteristic matrix; the method inputs a pre-trained deep confidence network model, predicts mechanical properties such as elongation and hardness value, compares with a preset threshold value, marks unqualified items, and generates a detection report. The method improves the comprehensiveness and accuracy of detection through multi-source data fusion and advanced algorithm processing, realizes efficient evaluation of titanium alloy wire performance, and is suitable for strict detection requirements of titanium alloy wire quality in the fields of aerospace, medical devices and the like.
Owner:BAOJI YONGXING NON FERROUS METAL MATERIALS CO LTD
Method for the assessment of the irradiation damage in nuclear reactor pressure vessels
A method for the assessment of the irradiation embrittlement in a nuclear reactor pressure vessel RPV (10) comprises the steps (a): cutting a specimen (20, 40) from an un-irradiated RPV (10); (b): measuring grain size Dg of each grain (30) on a region (21, 41) of the specimen (20, 40); (c): performing several indentation tests at a temperature on this region; (d) to (g): for each test, calculating for each grain (30) the slip band number density N / Dg from equations; (h): repeating steps (c) to (g) at different temperatures to obtain an un-irradiated curve around the ductile-brittle transition temperature DBTT; (i): submitting specimen (40) to an irradiation dose and repeating steps (b) to (g) at different temperatures to obtain an irradiated curve around the DBTT; (j) and (k): assessing the irradiation embrittlement in the RPV from the ductile-brittle transition shift between the un-irradiated and irradiated curves.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +1
Measuring device for elongation percentage of pole piece
The utility model relates to the technical field of battery pole piece production, and discloses a pole piece elongation measuring device which comprises a measuring platform, a first pressing mechanism and a second pressing mechanism. The measuring platform is provided with a groove which is a straight groove. The first pressing mechanism is arranged on one side of the groove and can press the coating area of the pole piece to be measured on the measuring platform; the second pressing mechanism is arranged on the other side of the groove and can press the tab area of the pole piece to be measured on the measuring platform; a clearance area is formed between the first pressing mechanism and the second pressing mechanism and corresponds to the groove, so that the coating area and the tab area of the to-be-detected pole piece can be cut along the groove through the cutting mechanism. The device for measuring the extension rate of the pole piece solves the problems that the measurement of the extension rate of the pole piece fails due to the breakage of the pole piece, the extension rate of the pole piece needs to be measured again, the scrappage of the pole piece is increased, and the measurement efficiency of the extension rate of the pole piece is low.
Owner:HUNAN DESAY BATTERY CO LTD
Steering wheel leather piece stretching, matching and grading automation device
ActiveCN224095579UReduce reworkReduce defective rateInvestigating material ductilityApparatus for force/torque/work measurementSteering wheelBall screw
The utility model discloses a steering wheel leather piece stretching, matching and grading automation device which comprises a support. A servo motor, a ball screw, a stretching guide rail, a fixed lower clamp, a first shell and a second shell are installed on the support. A movable table top is slidably connected to the stretching guide rail and sequentially connected with a ball screw and a servo motor. The movable table top is connected with the movable lower clamp and the movable upper clamp assembly, and the movable lower clamp is located under the movable upper clamp assembly. A fixed upper clamp assembly is arranged over the fixed lower clamp and connected with the first shell. A touch screen and a gear indicator lamp are arranged on the shell I; and a warning lamp, an emergency stop knob and a start button are arranged on the shell II. According to the utility model, the elongation value of the leather grafts can be directly measured, whether products meet requirements can be directly judged, the leather grafts meeting the elongation value range are delivered as qualified products, and the leather grafts exceeding the elongation value range are screened out and discarded.
Owner:BADER AUTOMOTIVE LEATHER DALIAN CO LTD
Asphalt extensibility detection device for highway construction
ActiveCN120293725AInvestigating material ductilityMountingsClassical mechanicsStructural engineering
The invention provides an asphalt extensibility detection device for highway construction, which comprises a supporting plate, the top of the supporting plate is provided with a bath, the supporting plate is provided with a fixed pulling frame and a movable pulling frame, the middle parts of the fixed pulling frame and the movable pulling frame extend into the bath, and the supporting plate is provided with a stretching driving mechanism for driving the movable pulling frame to be far away from or close to the fixed pulling frame. A convex lens assembly is arranged in the middle between the fixed pull frame and the movable pull frame and is in transmission connection with the movable pull frame through a lens linkage mechanism; according to the device, the two ends of a manufactured test mold are installed on the top of the movable pulling frame and the top of the fixed pulling frame respectively, the stretching driving mechanism drives the movable pulling frame to move to stretch an asphalt sample in the test mold, and in the moving process of the movable pulling frame, the lens linkage mechanism drives the convex lens assembly to move; the convex lens assembly and the middle part of the stretched sample are kept in a corresponding state, so that the asphalt drawn wire is amplified, and changes such as fracture, bending or drooping of the asphalt drawn wire can be found in time.
Owner:5TH ENGINEERING LTD OF THE FIRST HIGHWAY ENGINEERING BUREAU CCCC
Testing method and testing equipment for the non-destructive determination of strength- and / or forming-related material properties of a sheet metal component to be tested, based on the plane torsion test.
ActiveDE102015005146B4Material strength using steady torsional forcesInvestigating material ductilityTorsion testTest procedures
Test method for determining strength and / or forming-related material properties of a sheet metal to be tested (1) on the basis of the planar torsion test, in which at least a section of the sheet metal (1) forming a test area (12) is subjected to a torsional load by means of a clamping tool (2, 3) and at least the torque and angle of rotation of the clamping tool (2, 3) are recorded, characterized by the fact that the clamping tool (2, 3) consists of clamping pins (2, 3), a sheet metal component (1) which is preferably fixed in place and formed from sheet metal is clamped between the clamping pins (2, 3) arranged on the upper and lower sides of the respective test area (12) of the sheet metal component (1), The clamping pins (2, 3) are then rotated perpendicular to the sheet metal plane in the test area (12) in the same direction relative to the preferably stationary sheet metal component (1), and The torque required to rotate the tension pins (2, 3) and thus to locally shear the sheet metal component (1) in the test area (12) and the relative angle of rotation of the tension pins (2, 3) are measured and recorded.
Owner:TECHN UNIV DORTMUND
A monitoring method for the aging degree of in-service SBS modified asphalt pavement
ActiveCN113029822BWeather/light/corrosion resistanceWithdrawing sample devicesEngineeringRoad surface
The present invention discloses a method for monitoring the aging degree of in-service SBS modified asphalt pavement, which includes the following steps: (1) Conduct a simulated aging test on the SBS modified asphalt used for paving the road surface, conduct a force-elongation test and a Fourier transform infrared spectroscopy test on the SBS modified asphalt with different aging times, establish a S BC relationship curve with A 1700 / 1600 , and calculate the S BC when it is 0, denoted as A 1700 / 1600 , denoted as A 0; (2) During the service process of the road surface, regularly drill core samples of the asphalt surface layer, extract and recover the in-service SBS modified asphalt from the upper and middle surface layers respectively, conduct a Fourier transform infrared spectroscopy test, and calculate the A 1700 / 1600 of the upper and middle surface layers respectively according to the infrared spectra; (3) Evaluate the aging degree of the in-service SBS modified asphalt pavement based on the relationship curve between S BC and A 1700 / 1600 . The present invention provides a method for monitoring the aging degree of in-service SBS modified asphalt pavement, which can provide a basis and tool for the decision-making of the maintenance timing and maintenance plan of SBS modified asphalt pavement.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST (GRP) CO LTD
Ductility estimation device, estimation model generation device, ductility estimation method, estimation model generation method, and program
To predict a value related to the ductility of a ferrous material correctly.SOLUTION: A ductility estimation device comprises: an image acquisition unit which acquires a plurality of images of a ferrous material photographed so as to have different magnifications; a feature amount extraction unit which extracts feature amounts from the plurality of images; an estimation unit which estimates a value related to the ductility of the ferrous material by inputting the feature amounts to an estimation model that has learned so as to output the value related to the ductility of the ferrous material with the feature amounts of the images expressing the ferrous material photographed at the different magnifications as input; and an estimation result output unit which outputs the estimation result.SELECTED DRAWING: Figure 1
Owner:NIPPON STEEL CORPORATION