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Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength, breaking strength, maximum elongation and reduction in area. From these measurements the following properties can also be determined: Young's modulus, Poisson's ratio, yield strength, and strain-hardening characteristics. Uniaxial tensile testing is the most commonly used for obtaining the mechanical characteristics of isotropic materials. Some materials use biaxial tensile testing.
Intelligent evaluation method for mechanical properties of carbon fiber composite material
The invention provides an intelligent evaluation method for mechanical properties of a carbon fiber composite material, and relates to the technical field of material performance analysis, and the method comprises the following steps: evaluating the performance dispersion of a current batch of samples according to a fiber agglomeration area proportion and a carbon fiber monofilament diameter, and comparing the performance dispersion with a preset dispersion threshold, identifying a non-manufacturability discrete risk level; determining the tensile strength value of each sample through a tensile test, performing statistics to obtain a strength mean value and a strength standard deviation, performing matching analysis on the performance dispersion, the strength mean value and the strength standard deviation, and extracting the fiber reinforcement efficiency; performing weighted fusion processing on the fiber reinforcement efficiency and the fiber agglomeration area proportion to obtain a current batch fiber form comprehensive index, comparing the current batch fiber form comprehensive index with a historical batch, and identifying a fiber form change amplitude; and evaluating the quality consistency degree among the batches according to the strength deviation value and the dispersion difference among the batches, and identifying the non-manufacturability discrete source.
Owner:FOSHAN NANHAI POLMA ENG PLASTIC CO LTD
Intelligent tensile testing machine for tight-lock coupler and testing method of intelligent tensile testing machine
PendingCN121898890AReduce procurement costsreduce excess spaceMaterial strength using tensile/compressive forcesSynchronous controlElectrical control
The invention discloses a tight-lock coupler intelligent tensile testing machine and a testing method thereof, and belongs to the technical field of tight-lock coupler test.The tight-lock coupler intelligent tensile testing machine comprises a mounting bottom plate and an electric control cabinet, and a support for supporting a tight-lock coupler to be detected is mounted on the surface of the mounting bottom plate; a tensile connecting frame for connecting the tight-lock coupler is mounted on the surface of the bottom plate on one side of the support, an integrated design of'tensile force detection and visual detection 'is innovatively adopted, mechanical parameter acquisition and visual deformation observation are combined, traditional mechanical data such as tensile force and displacement are obtained, and visual characteristics such as fine deformation and crack initiation are captured; precise synchronization of pulling force application, displacement collection and camera shooting is achieved through the synchronous controller, the real-time corresponding relation of pulling force-displacement-visual deformation is established, the problems that an existing device is single in detection dimension and poor in data relevance are solved, and the potential quality hazard checking capacity and the persuasion of a detection result are improved.
Owner:URUMQI RAILWAY BUREAU
A tensile testing device for automotive fastener wire materials
The application provides a kind of automobile fastener wire material tension testing device, it is related to tension testing device field, comprising: indicating component, the indicating component is by conversion mechanism and displacement sensor composition, test component can realize the tension testing of automobile fastener wire material, material is in the tension testing simultaneously, indicating component can real-time monitoring the deformation degree of material, test data is comprehensive and efficient, and indicating component can automatically control the opening and closing of deformation monitoring function according to test state, solve the single test effect of the tension testing device of existing automobile fastener wire material, since automobile fastener wire material has ductility, existing tension testing device can not record monitoring the deformation of material when testing, test data is not comprehensive enough.
Owner:TAICANG FENGJIN METAL PRODUCTS CO LTD
A tensile strength detection device for leather production
ActiveCN120628808BMaterial strength using tensile/compressive forcesTensile testingMechanical engineering
This invention discloses a tensile strength testing device for leather production, belonging to the field of tensile testing technology. The device includes a testing platform with a base plate fixedly mounted on it. A hollow column and a component box are fixedly mounted on the base plate. A guide movement mechanism is installed inside the hollow column. The device also includes at least one pair of clamps. One side of the hollow column has a long groove and a short groove, and a support member is slidably installed in both the long and short grooves. The clamps are mounted on the support members. The support member in the long groove is mounted on the guide movement mechanism, and a tension spring is fixedly connected between the support member in the short groove and the bottom surface of the groove. Contact points and microswitches are respectively installed on the support member and the bottom surface of the short groove. The two clamps are synchronously stretched by the same guide movement mechanism. When either sample breaks, the microswitch of the broken sample is triggered, the fracture information is recorded, and tension continues to be applied to the other sample until it breaks.
Owner:SCIENCE & TECHNOLOGY RESEARCH CENTER OF CHINA CUSTOMS +1
Ultralow-temperature slow strain mechanical tensile test platform
PendingCN121877595APreparing sample for investigationMaterial strength using tensile/compressive forcesTemperature controlControl cell
The invention relates to the technical field of material mechanical property testing, and provides an ultralow-temperature slow strain mechanical tensile test platform which comprises a vacuum Dewar unit, a liquid helium temperature control unit, a slow strain tensile unit, a measuring unit and a control unit, the vacuum Dewar unit comprises a vacuum Dewar body and is used for providing a closed low-temperature test environment; the liquid helium temperature control unit comprises a direct injection module and a recovery module, the direct injection module is used for directly injecting liquid helium to the gauge length section of the sample for cooling, and the recovery module is used for recovering and recycling unevaporated liquid helium; the slow strain stretching unit is used for stretching a sample arranged in the vacuum Dewar body at a low strain rate; the measuring unit is arranged in the vacuum Dewar body and is used for monitoring the temperature, the force value and the strain data of the sample in real time. Liquid helium is used as a cold source, the liquid helium is directly aligned to the gauge length section of the sample through the direct injection module, and compared with a traditional liquid helium steam natural convection heat exchange mode, the heat exchange coefficient is increased, and automatic precise temperature control is achieved.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Device and method for testing tensile property of data line
InactiveCN121762315AMaterial strength using tensile/compressive forcesTensile testingMechanical engineering
The invention relates to the technical field of data line performance testing, in particular to a data line tensile property testing device and method. The data line tensile property testing device comprises a base, a static clamp, a linear guide rail, a driving mechanism, a sliding platform, a force value sensor, a dynamic clamp, a displacement sensor and a visual inspection mechanism. The device is used for continuously recording the whole stretching test process, real-time visual recording of the apparent deformation and damage process of the data line is achieved, the defect that process monitoring is incomplete is overcome, meanwhile, after the test is finished, the height of the annular mounting frame is adjusted through the position adjusting assembly, and the measurement accuracy is improved. According to the method, the high-resolution area-array camera is close to the failure part of the data line, so that a high-definition image is obtained, a data basis is provided for three-dimensional reconstruction by adopting a photogrammetry or stereoscopic vision algorithm, high-precision three-dimensional shape analysis of the failure part of the data line is realized, and the problem of inaccurate analysis is solved.
Owner:HENAN JINKUN TECH CO LTD
Method for testing peel strength of battery cell pole piece
The invention discloses a method for testing the peel strength of a battery cell pole piece, which comprises the following steps of: attaching a pole piece sample on a substrate adhered with a double-sided adhesive tape, wherein the area of a sample testing area is less than or equal to 100mm, an active layer is adhered towards the substrate, and a clamp connecting area is a single-layer foil; and performing a surface peeling test through a tensile machine, and calculating the peeling strength P (N / cm) according to the ratio of the maximum tensile force value to the area of the test area. According to the method, a test unit is reduced from a traditional strip sample to a small-area sample, and the method can be used for evaluating the bonding strength of small-scale test samples, leftover materials and micro-areas; and a surface stripping mode is adopted, so that the bonding force is intensively reflected, and the measurement precision and sensitivity are improved. And meanwhile, multi-point sampling is supported, and the coating uniformity of the pole piece can be counted and analyzed.
Owner:SHANGHAI XUANYI NEW ENERGY DEV CO LTD
Clamping mechanism for tension tester
The utility model relates to the technical field of clamps, and particularly discloses a clamping mechanism for a tension tester, which comprises a screw rod and a clamping unit, the clamping unit comprises a clamping bin, two groups of mounting components, a clamping piece component, a vertical plate, studs and nuts, the two groups of mounting components are respectively and fixedly connected with the clamping bin, each group of studs is respectively and fixedly connected with the clamping bin, and the vertical plate is fixedly connected with the clamping bin. The vertical plate is arranged on one side of the clamping bin, the multiple sets of nuts are arranged, each set of nuts is in threaded connection with the corresponding stud and arranged on the outer surface wall of the corresponding stud in a sleeving mode, the two sets of clamping piece assemblies are embedded in the clamping bin, and the two sets of screws are in threaded connection with the vertical plate. According to the clamping device, a test sample can be stably clamped, and the clamping force can be continuously improved in the process of continuously applying tension, so that the clamping device cannot loosen in the clamping process, the accuracy and the stability of tension test data are improved, and the tension detection error is reduced.
Owner:WEIFANG GUANGTAI MASCH CO LTD
Tension testing device for O-shaped rubber sealing ring
ActiveCN223940525UMachine sealing rings testingMaterial strength using tensile/compressive forcesPull forceTensile testing
The utility model relates to the technical field of rubber sealing rings, and discloses an O-shaped rubber sealing ring tension testing device which comprises a base, a mounting groove is formed in the right side of the top of the base, the surface of a lead screw is in threaded connection with a threaded block, and the left end of the top of the threaded block is fixedly connected with a first drag hook. A baffle is fixedly connected to the left side of the top of the base, a tension meter is arranged on the left side of the baffle, a second pull hook is arranged at the right end of the tension meter, a mounting block is fixedly connected to the left side of the top of the base, a threaded rod is in threaded connection with the interior of the mounting block, and a limiting block is fixedly connected to the inner side of the threaded rod. The installation block, the threaded rod and the like are arranged to be matched with the baffle for use, the threaded rod is rotated to drive the limiting block to be separated from the tension meter, locking of the tension meter is relieved, at the moment, a worker can replace the tension meter, operation is easy and convenient, the whole testing device does not need to be replaced, the use cost is reduced, and the worker can use the device conveniently.
Owner:LUZHOU CHANGJIANG HYDRAULIC SEAL CO LTD
Drawing test equipment
PendingCN121830283AMaterial strength using tensile/compressive forcesStructural engineeringTensile testing
The invention relates to the field of electronic device drawing test equipment, in particular to drawing test equipment which comprises a carrier plate, a pressing assembly, a pulling assembly and an adjusting assembly. The adjusting assembly comprises a first adjusting air cylinder and a second adjusting air cylinder, the output end of the first adjusting air cylinder is connected with the downward-pressing air cylinder, and the output end of the second adjusting air cylinder is connected with the upward-pulling air cylinder. Through the arrangement of the adjusting assembly, when the part locking position and the pulling force applying position deviate due to the size change of the panel, the first adjusting air cylinder and the second adjusting air cylinder are matched, so that the position change of the part is caused by the size change of the panel; the positions of the downward pressing air cylinder and the upward pulling air cylinder can change according to the size of the panel, so that the position of the downward pressing air cylinder and the position of the upward pulling air cylinder always correspond to the position of a part on the panel, panels of different sizes are adapted, the influence of size change on a test result is reduced, and the accuracy of the test result is improved.
Owner:SUZHOU GANGWANG METAL TECH CO LTD
Method and device for recycling tensile fragments of composite material
PendingCN121551325APlastic recyclingMaterial strength using tensile/compressive forcesMaterials testingTensile testing
The invention relates to the technical field of composite material testing, in particular to a recycling method and device for composite material tensile fragments, and the method comprises the steps that the bottom of a protective cover is adjusted to a preset inclination angle through an angle adjusting mechanism; covering a protective cover outside a clamping block for clamping the composite material in the tensile test device, so as to collect fragments generated in the tensile process of the composite material through the protective cover; the fragments in the protective cover are blown to the bottom of the protective cover through a plurality of air injection assemblies; and the fragments at the bottom of the protective cover are adsorbed through the movable suction cup and transferred to a preset recycling area outside the protective cover. According to the technical scheme, splashing fragments can be blocked through the protective cover, the fragments are guided to fall to the bottom of the protective cover in a concentrated mode, meanwhile, the fragments attached to the side wall of the protective cover and clamped in the grooves of the clamping blocks are blown through the air injection assemblies, and the collection efficiency of the composite material tensile fragments is improved.
Owner:NANJING FIBERGLASS RES & DESIGN INST CO LTD
System for stretching test of nano-film and manufacturing method of system
The invention belongs to the technical field of micro-electro-mechanical system processing, and discloses a system for a stretching test of a nano-film and a manufacturing method of the system. The system comprises a tensile on-sheet testing machine and a probe station, the tensile on-sheet testing machine comprises a main body frame, a probe loading structure, a dowel bar, a plurality of elastic beams, two deformation quantity scales, two pointers, a plurality of suspension folding beams and a plurality of anchor points; the two pointers are respectively used for marking the scales of the two deformation quantity scales; one end of each suspension folding beam is connected with the main body frame, and the other end is fixedly connected with an anchor point; one end of the dowel bar is connected with the main body frame, the other end of the dowel bar is connected with one end of the nano-film sample, and the other end of the nano-film sample is fixedly connected with an anchor point; the main body frame comprises a limiting shaft which is located between the two anchor points. According to the invention, the in-situ online stretching test of the nano-film can be directly realized on the silicon wafer, and the mechanical response characteristics of the deposited film in the device manufacturing process can be truly reflected.
Owner:PEKING UNIV
Load testing device and method for high strain rate tensile testing
This invention discloses a load testing device and method for high strain rate tensile testing. The device includes an elastic rod (1), strain gauges (2), a tensile testing machine (3), a clamp connector (4), and a data acquisition unit (5). One end of the elastic rod is fixed to the lower crossbeam (31) of the tensile testing machine, and one end of the specimen (6) is connected to the other end of the elastic rod through the clamp connector. The other end of the specimen is fixed to the upper crossbeam (32) of the tensile testing machine. Several strain gauges are spaced apart on the elastic rod, and the output ends of the strain gauges are connected to the data acquisition unit. Each strain gauge independently transmits its stress signal to the data acquisition unit. This invention can obtain ideal and reliable dynamic mechanical property data by decomposing the transmission and superposition of stress waves during material tensile testing at high strain rates, reducing the oscillation effect of load signals, obtaining the true stress loaded on the sample, and improving the accuracy of test results.
Owner:BAOSHAN IRON & STEEL CO LTD
Safety rope strength detection device based on new material
InactiveCN121577427AMaterial strength using tensile/compressive forcesClassical mechanicsTensile testing
The invention relates to the technical field of rope strength detection, and discloses a novel material-based safety rope strength detection device, which comprises a tension tester, a safety rope is arranged in the middle of the tension tester, and a control assembly is arranged between two side columns of the tension tester. Two sets of environment switching assemblies are arranged between the control assemblies, each control assembly comprises two sets of U-shaped frames fixedly installed between stand columns on the two sides of the tension testing machine, transmission rods are rotationally arranged on the inner sides of the two sets of U-shaped frames, and hand wheels are fixedly arranged on the front sides of the transmission rods; a threaded rod is rotationally arranged between the two U-shaped frames and close to the rear side. According to the strength detection device for the safety rope based on the new material, through overall cooperative use, a real humid environment is simulated, a real high-temperature environment is reproduced, and the strength reliability of the safety rope after water absorption or heat absorption is accurately evaluated.
Owner:XINGMAI SAFETY EQUIPMENT TECHNOLOGY (NANTONG) CO LTD
Dual-column tensile testing machine
1. Name of the product in this design: Double-column tensile testing machine. 2. Purpose of this design: To test the physical properties of various products, such as tensile strength, compressive strength, and bending strength. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:DONGGUAN ZHIZHE PRECISION INSTR CO LTD
Rubber tensile testing device
PendingCN121595361AMaterial strength using tensile/compressive forcesMaterial strength using repeated/pulsating forcesElectric machineryStructural engineering
The invention discloses a rubber tensile testing device, and belongs to the technical field of rubber testing. The device mainly comprises a base, the base is provided with a test assembly and an impact assembly, the impact assembly comprises a top column, the top column is installed on the top of the base, a base plate is installed on the top of the top column, a stepping motor is installed on the base plate, an electric chuck is installed at the output end of the stepping motor, and a bearing seat is installed on the base plate. A rotating rod is mounted on the bearing seat through a bearing, a rocker is mounted at one end of the rotating rod, a connecting block is mounted at the other end of the rocker, an impact block is detachably mounted on the connecting block, a mounting frame is mounted on the base plate, a supporting rod is mounted on the mounting frame, and a clamping jaw is arranged on the supporting rod. According to the rubber tensile testing device disclosed by the invention, through the arrangement of the impact assembly, the data of the rubber conveying belt for transportation in mines, industries and the like when the rubber conveying belt is impacted by a heavy object during tightening can be acquired, so that the performance of rubber can be better evaluated, and the effect of continuously carrying out impact testing when the rubber is tightened is achieved.
Owner:CHANGZHOU DEYING MOLDING CO LTD
Automobile wire harness stretching test device
ActiveCN224176251UStretch accuratelyImprove versatilityMaterial strength using tensile/compressive forcesTensile testingMechanical engineering
Owner:ANHUI XINWO DENTONG CO LTD
Mycelium Structure And Method For Producing Mycelium Structure
A mycelium structure according to the present disclosure includes: a mycelium formed of hyphae connected in a three-dimensional shape; and starch covering the hyphae. A density of the mycelium structure is preferably 0.8 g / cm3 or more and 5.0 g / cm3 or less. An average diameter of the hyphae covered with the starch is preferably 2.0 μm or more and 20.0 μm or less. In a stress-strain curve indicating a relationship between a stress (MPa) applied by a tensile test and a strain (%) at that time, a maximum stress in an elastic region is preferably 2.0 MPa or more and 40.0 MPa or less, and a maximum strain is preferably 0.5% or more and 4.0% or less.
Owner:SEIKO EPSON CORP
Tensile stress-strain performance testing equipment for rubber combined narrow V-shaped belt
ActiveCN224095542UMaterial strength using tensile/compressive forcesDirt cleaningStructural engineeringMachine
The utility model discloses equipment for testing the tensile stress-strain performance of a rubber combined narrow V-shaped belt, and relates to the technical field of rubber testing, the equipment comprises a bottom plate, and the top end of the bottom plate is respectively provided with a testing assembly and a protection assembly; the protection assembly comprises a protection shell, and a transparent observation plate is slidably arranged on one side of the outer wall of the protection shell. The testing assembly comprises an electric sliding rail and two movable sliding blocks, a C-shaped plate and a machine shell are fixedly installed at the top ends of the movable sliding blocks respectively, a first screw rod is rotatably installed on the inner wall of the machine shell, the top end of the first screw rod penetrates through the top end of the machine shell, and a first bevel gear is fixedly installed at the top end of the first screw rod. According to the V-belt stretching test device, the V-belt fixing and clamping efficiency is improved, the stretching test speed of the V-belt is effectively improved, the automatic opening and closing design of the transparent observation plate facilitates preparation work before the test, the protection effect is ensured in the test process, and the safety of the test process is improved.
Owner:YANGZHOU HUIQUAN PLASTIC CO LTD
Cable tensile testing device
The utility model relates to the field of cable testing, and discloses a cable tensile testing device which comprises a base, a fixing plate is fixedly connected to the outer wall of the upper side of the base, and a fixing seat is fixedly connected to the outer wall of the upper side of the base. According to the utility model, through the arrangement of the clamping block, the moving column and the like, one end of the cable is placed between the clamping plate and the fixed seat, the screw rod is rotated to drive the moving plate, the moving column and the clamping plate to move towards the direction of the fixed seat through the threaded sleeve so as to clamp the end part of the cable, and after the test is completed, the inserting rod is moved to release the fixing of the moving column; a spring enables a guide block, a moving column and a clamping plate to move forwards to release fixation of the cable, and when the cable of the same specification is tested, one end of the cable is directly placed between the clamping plate and a fixed seat, then the moving column is pushed backwards to drive the clamping plate to clamp the cable, and the cable is clamped on the inner wall of the moving column through an insertion rod. And cables of the same specification can be quickly clamped and loosened.
Owner:HANGZHOU DIBO METAL MATERIALS
A copper wire tensile strength testing mechanism
This utility model provides a copper wire tensile strength testing mechanism, relating to the field of copper wire tensile strength testing technology. It includes: a tensile testing instrument body, a fixed plate fixedly mounted on the top of the tensile testing instrument body, a movable plate on the other side of the fixed plate, and mounting frames on opposite sides of the fixed plate and the movable plate. This testing mechanism can quickly fix both ends of the copper wire using clamping components, making the operation simple and convenient, saving time and effort. The copper wire ends are securely fixed, preventing loosening during stretching. Furthermore, the protective components activate during testing to prevent the copper wire from snapping and striking the operator at high speed, or from breaking into fragments that could injure the eyes or other body parts.
Owner:SUZHOU KANGXIN NEW MATERIALS CO LTD
Jig for detecting extrusion force of pre-filled syringe
ActiveCN224066332UMachine part testingMaterial strength using tensile/compressive forcesTensile testingPhysics
The utility model relates to the technical field of syringe extrusion force detection equipment, in particular to a pre-filled syringe extrusion force detection jig, which comprises a jig main body used for fixing and supporting a syringe and arranged on a tension tester to realize that a test end of the tension tester is matched with the top end of the syringe to carry out an extrusion force test; the first fixing assembly is used for fixing and limiting the common injector so as to be matched with the tensile testing machine to carry out extrusion force testing; the second fixing assembly is used for fixing and limiting the injector with the booster so as to be matched with the tension testing machine to carry out extrusion force testing; and the first fixing assembly or the second fixing assembly is detachably mounted on the jig main body and keeps the injector in a vertical state after being mounted, so that the technical problems that in the prior art, prefilled injectors are generally poor in detection precision, complex in operation and poor in repeatability are solved.
Owner:YANTAI ZHENGHAI BIO TECH
Metal material tensile mechanical testing device
PendingCN121933341AMaterial strength using tensile/compressive forcesMetallic materialsTensile testing
The invention provides a metal material tensile mechanical testing device, and belongs to the technical field of mechanical testing. The problems that an existing clamping structure is complex, and the sample clamping process is tedious in operation are solved. According to the metal material tensile mechanical testing device, tensile testing assemblies slidably arranged on guide columns are arranged above and below a workbench, a rectangular groove is formed in the front side wall of the middle of the workbench in the width direction of the workbench, and scales are arranged on the portion, located on one side of the rectangular groove, of the upper surface of the workbench in the length direction of the rectangular groove; a front pressing block and a rear stopping block which can slide front and back are arranged in the rectangular groove, and the front pressing block can move out of the rectangular groove from a front end opening of the rectangular groove. The stretching test assembly comprises a stretching body, a containing groove is formed in the middle of the end, facing the workbench, of the stretching body, and clamping limiting blocks capable of sliding in the left-right direction are arranged at the end and located on the left side and the right side of the containing groove. The structure solves the problems that the clamping structure in the device is complex and the sample clamping process is tedious to operate.
Owner:HANGZHOU VOCATIONAL & TECHN COLLEGE
Automatic sample centering device of tension testing machine
ActiveCN224122302UMaterial strength using tensile/compressive forcesMechanical measuring arrangementsTest sampleClassical mechanics
The utility model provides an automatic sample centering device of a tensile testing machine, which comprises the tensile testing machine, a tensile shell is fixedly mounted at the top of the tensile testing machine, a sliding groove is formed in one side of the tensile shell, a fixed base is fixedly mounted on the inner wall of the bottom of the sliding groove, and a clamping groove is formed in the bottom of the fixed base. A sliding block base is installed on the inner side of the sliding groove in a sliding mode. Clamping shells are fixedly mounted on one side of the sliding block base and one side of the fixed base, clamping mechanisms are arranged on the inner sides of the two clamping shells, a centering shell is fixedly mounted on the outer side of the clamping shell located on the fixed base, and a centering mechanism is arranged on the inner side of the centering shell. According to the automatic sample centering device of the tensile testing machine, the sample can be clamped and prevented from loosening in a tensile test, the V-shaped groove is formed in one side of the clamp, the automatic sample centering device can adapt to samples in different shapes, sample centering can be rapidly and accurately completed, the preparation time before the test is greatly saved, and the test efficiency is improved.
Owner:HUBEI JULONG NEW MATERIALS TECHNOLOGY CO LTD
Bio-based lining cloth tensile test equipment
The invention relates to the technical field of cloth detection, in particular to bio-based lining cloth tensile testing equipment which comprises a testing table, a first testing frame and a second testing frame and further comprises a clamping assembly, a flattening assembly, an air pipe and a stretching assembly. The two motors are connected with the corresponding sleeves respectively, the two clamping assemblies are arranged on the corresponding sleeves respectively, the flattening assembly is arranged between the first testing frame and the second testing frame and connected with the two clamping assemblies, and the flattening assembly comprises a flattening roller. The air pipe is arranged on the flattening assembly, used for conveying airflow and communicated with the flattening roller. According to the invention, through the arrangement of the clamping assembly and the flattening assembly, the effect of horizontally clamping the end part of the tested lining cloth can be realized, the conditions of slipping, loosening and breaking of the end part of the lining cloth during testing are avoided, and the accuracy of a test result is effectively ensured.
Owner:JIANGSU DATONG BAOFU TEXTILE TECH CO LTD
Photovoltaic module junction box testing device
PendingCN121499214AMaterial strength using tensile/compressive forcesMaterial strength using repeated/pulsating forcesMotor driveReciprocating motion
The invention relates to the technical field of photovoltaic junction box testing, and discloses a photovoltaic module junction box testing device which comprises a base, a mounting table, a bottom plate and a motor assembly. A mounting table and a bottom plate are arranged at the top of the base, a first guide rod is mounted on the bottom plate through a connecting frame, a sliding seat sleeves the bottom plate and is connected with a second guide rod, and an assembly seat is arranged at one end of the second guide rod while the other end is connected with an assembly frame. A second motor drives a cam to drive an assembly frame to move, so that a clamping seat reciprocates along an elliptical track under the cooperation of a first guide rod and a second guide rod, a multi-dimensional complex stress scene possibly encountered by the wire harness in actual use is simulated, a fatigue test is performed through continuous movement, and a potential failure risk is effectively found. Meanwhile, the first motor drives the lead screw to rotate to drive the clamping block and the bottom plate to horizontally move, so that the linear tensile test of the wire harness is realized, and the tension data diversity is ensured. The device has the functions of research and development deep analysis and production rapid detection, and the universality and efficiency are remarkably improved.
Owner:HUANENG XINJIANG JIMUSAR NEW ENERGY CO LTD
A joint strength dynamic testing machine for abrasive belt performance test
PendingCN122130499AMaterial strength using tensile/compressive forcesInvestigating abrasion/wear resistanceReciprocating motionMachine
This invention discloses a dynamic testing machine for the joint strength of abrasive belts, relating to the field of new material testing technology. It includes a worktable with symmetrically fixed vertical plates on its left and right sides. A driving mechanism is installed on the worktable, driving the abrasive belt body to move left and right in an orderly manner. Clamping structures are symmetrically installed on the driving mechanism. This dynamic testing machine for the joint strength of abrasive belts, through the clamping structures and driving mechanism, can both achieve static tensile strength testing of the abrasive belt joint via traction by a first cylinder, accurately measuring the tensile strength at joint breakage, and drive the abrasive belt to reciprocate left and right via the driving mechanism, cooperating with a first friction mechanism and a second friction mechanism to achieve dynamic friction tensile testing. This perfectly replicates the motion state and friction of the abrasive belt during actual grinding, making the test data more valuable and providing a reliable basis for abrasive belt quality evaluation.
Owner:YANCHENG XINZHENHUA ABRASIVES CO LTD
Tension testing machine with bidirectional valve plate
This utility model relates to the technical field of tensile testing machines, and discloses a tensile testing machine with a bidirectional valve plate, including a base, a shell fixedly connected to the top of the base, and a back plate fixedly connected to the bottom of the base. Two valves are slidably connected inside the back plate, and tightening components are provided on the outer walls of the two valves. A protective component is provided on the outer wall of the shell. The tightening components include multiple driving columns, which are disposed on the outer walls of the valves. A connecting block is fixedly connected to the outer walls of the two valves, and a motor is fixedly connected to the inner wall of the connecting block. In this utility model, the motor is first started, and the driving columns drive the driving blocks to slide on the outer wall of the slide rail, retracting the four gripping blocks to grip the material being tested. During the retraction of the four gripping blocks, the adapting columns automatically adapt to the surface of the irregularly shaped material and compress the spring, solving the problem that the tensile testing machine cannot stably grip irregularly shaped materials in four directions, affecting the testing work, and improving the accuracy of the tensile testing machine.
Owner:济南耐而试验机有限公司
A split-type friction stir welding tool and a welding method for weakening joint texture.
This invention provides a split-type friction stir welding fixture and a welding method for weakening joint texture. It solves the technical problem in traditional friction stir welding of metallic materials where the concentrated grain orientation and high texture strength at the joint lead to inconsistent deformation in different areas of the joint during tensile testing, thus impairing the tensile performance of the joint. The invention provides a split-type friction stir welding fixture with an outer stirring head and an inner stirring head. The outer stirring head has a central stirring chamber, and the inner stirring head is located within the stirring chamber. The outer and inner stirring heads can move relatively independently. The lower end face of the inner stirring head has a concentric annular groove, and the outer stirring head has a concave lower end face with a vortex groove. Simultaneously, this invention provides a welding method for weakening joint texture using a split-type friction stir welding fixture. This invention can be widely applied in the field of friction stir welding technology.
Owner:HARBIN INST OF TECH AT WEIHAI
General tensile test method suitable for wind power bolts of various specifications
The invention discloses a universal tensile test method suitable for wind power bolts of various specifications. The method comprises the following steps: step 1, arranging strain gauges; 2, a centering bush is selected and installed; 3, a clamp tool is installed; 4, wind power bolts are installed; 5, a spherical gasket and a nut are arranged in a sleeving mode; step 6, pre-tightening the nut; step 7, testing the coaxiality; and step 8, carrying out a tensile test on the electrified bolt with qualified coaxiality judgment by the testing machine. According to the invention, the clamp tool, the spherical washer and the centering bushing are adopted, so that the axis of the stud is ensured to be overlapped with the force application axis of a testing machine when the stud is loaded, and bending stress caused by unbalance loading is eliminated. And the spherical gasket can adaptively adjust the small angle deviation, so that the load is uniformly transmitted, and the stress concentration at the root of the thread is effectively inhibited. Meanwhile, the bending deformation rate is monitored and calculated through a strain gauge, and the coaxiality is quantitatively verified, so that the accuracy and reliability of test data (such as tensile strength and fatigue life) are ensured.
Owner:SINOMATECH FUNING WIND POWER BLADE