113 results about "Burst test" patented technology

The invention relates to the technical field of performance testing, in particular to a rare earth microalloyed copper pipe casting blank micro-hole performance testing method and system.The method comprises the steps that a plurality of rare earth microalloyed copper pipe blanks with different contents are selected as samples, and the samples are grouped; a surface defect quantitative test, a hardness gradient test, a tensile test and a pressure bursting test are carried out on each set of samples, performance related parameters are obtained, and the performance related parameters comprise smelting pore parameters, recrystallization parameters, dislocation density parameters and defect sensitive parameters; constructing a quality-performance mapping matrix according to the performance correlation parameters, and extracting performance key influence factors by adopting a principal component analysis method; a neural network architecture model is constructed and trained, a defect-performance sensitivity map and a process sensitivity map are output, and a dynamic process correction suggestion is further obtained; the synergistic effect between the copper pipe casting blank hole and the performance can be determined, and dynamic feedback is formed for the forming process.

The utility model discloses a blasting test box, which relates to the technical field of blasting and comprises a box body, a test space is defined by the box body, a first adjusting part is arranged on the top wall of the test space, and a plurality of second adjusting parts are arranged on the side wall of the test space; the top pressurizing plate is arranged in the test space and connected with the first adjusting piece, and the first adjusting piece is used for driving the top pressurizing plate to move in the height direction of the blasting test box; the plurality of side surface pressurizing plates are arranged in the test space and are respectively connected with the plurality of second adjusting pieces; the second adjusting pieces are used for driving the corresponding side surface pressurizing plates to move along the direction vertical to the height direction of the blasting test box. Therefore, the test space is defined by the box body, fragments and airflow generated during blasting can be effectively blocked, the risk of damage to the surroundings caused by the test is reduced, the confining pressure blasting condition under a certain vertical depth can be simulated by adjusting the positions of the top pressurizing plate and the multiple side face pressurizing plates, and the precision of the test result can be improved.

The present application relates to the technical field of nuclear power plant performance testing and discloses a method for assessing the remaining life of a bursting disk in a large-caliber vacuum system of a nuclear power plant, comprising the following steps: S1, obtaining a first sample of a reference bursting disk after a first fatigue test, obtaining a second sample of a bursting disk to be assessed, and performing a bursting test on the first and second samples to obtain a life coefficient; S2, performing a non-metallic material state test on non-metallic debris in the first and second samples after the test, obtaining non-metallic test results of similar non-metallic materials, and obtaining a first remaining life of the bursting disk to be assessed; S3, performing a metallic material state test on metallic debris in the first and second samples after the test to obtain a second remaining life of the bursting disk to be assessed; S4, obtaining a third sample of the bursting disk to be assessed, and performing a second fatigue test to obtain a third remaining life of the bursting disk to be assessed; and S5, obtaining a final remaining life of the bursting disk to be assessed based on the life coefficient, the first, second, and third remaining lives.

The utility model discloses a breathing blasting test fixture for a new energy battery cover plate. The breathing blasting test fixture is characterized by comprising an upper cavity and a lower cavity, an upper cavity is arranged in the middle of the upper cavity, a first vent hole is formed in the middle of the left side face and communicated with the upper cavity, four first positioning pins are arranged at the four corners of the upper cavity, a lower cavity is arranged in the middle of the lower cavity, two symmetrical first grooves are formed in the left side and the right side of the lower cavity, a plurality of second positioning holes are formed in the bottoms of the first grooves, and a plurality of sets of third positioning holes are formed in the front side and the rear side of the first grooves. And a first positioning hole matched with the first positioning pin is formed in the lower cavity. According to the utility model, the upper cavity and the lower cavity can be quickly positioned by arranging the first positioning pin, and the plurality of second positioning holes and the plurality of third positioning holes are respectively inserted with the second positioning pins and the third positioning pins for quickly positioning various different products to be tested, so that the test fixture is suitable for testing various products with different specifications, the test efficiency is greatly improved, and the test cost is reduced. And the production cost of a plurality of test jigs and a large amount of labor cost are saved.

The invention provides a gas blasting parameter prediction and hole arrangement design method based on a back propagation neural network. The method comprises the following steps: S1, obtaining physical and mechanical parameters of a rock mass in a blasting area; s2, carrying out a single-hole gas bursting test, and determining an optimal resistance line; s3, the step S1 and the step S2 are repeated in different sites, corresponding data are counted, and a database is established; s4, constructing and training a back propagation neural network, and predicting reasonable gas blasting parameters by inputting training data; and S5, optimizing hole arrangement design according to a network prediction result, and determining hole depth, hole pitch and hole pitch. According to the method, the blasting parameters are accurately predicted, the rock mass parameters and the site conditions are combined, the hole distribution parameters are reasonably designed, the rock breaking cost is remarkably reduced, the rock breaking efficiency is improved, and then the economic benefits of blasting operation are optimized.

The invention discloses an electron beam welding method for an ultrahigh-strength steel shell. Comprising the following steps of part machining, demagnetization, laser cleaning, assembly of all parts, preheating welding of shell welding seams, formal welding of the shell welding seams, stress relief welding (modification welding) of the shell welding seams, X-ray detection, welding of external parts, annealing, detection and overall heat treatment (quenching and tempering) X-ray detection, numerical control turning, machining center and inspection are conducted. According to the method, the welding problem of the ultrahigh-strength steel shell is solved, a welding joint meets the GJB1718A-2005 I-level requirement, a welding seam is subjected to one-side welding and double-side forming, the welding seam is thoroughly welded and is free of sunken parts, the excess weld metal of the back face is not larger than 0.4 mm, the excess weld metal of the front face is not larger than 1.0 mm, the defects of undercut, incomplete fusion, cracks and the like are avoided, a welding test plate passes a mechanical property test, and the shell passes a water pressure bursting test. By adopting the method, the welding process is stable, the welding seam quality is good, and the welding qualification rate is high.

The present application belongs to the technical field of pressure-resistant bursting tests. Provided are a pressure-resistant bursting test tool and a pressure-resistant bursting test system. The pressure-resistant bursting test tool is configured to test the bursting pressure of a pressure relief component, the pressure relief component comprising a first wall part which is provided with a pressure relief mechanism. The pressure-resistant bursting test tool comprises a first component and a second component, wherein the first component is provided with an inlet channel, the second component is provided with a discharge channel, the second component and the first component are configured to cooperatively clamp the first wall part, and the discharge channel is configured to discharge a fluid medium flowing through the first wall part from the inlet channel when the pressure relief mechanism is actuated. The pressure-resistant bursting test tool provided with such a structure has a simple structure, and when a bursting test is carried out on the pressure relief component, the first component and the second component can directly act on two sides of the first wall part of the pressure relief component, thereby simplifying the test process, and improving the pressure-resistant bursting test quality of the pressure relief component.

The invention discloses a dog traction rope burst test device, which comprises a mounting rack, a connecting part is arranged on the mounting rack, a connecting rope is arranged on the connecting part, the connecting part is connected with the upper end of a traction rope through the connecting rope, and a bearing rack is arranged on the mounting rack; the driving device is connected with the bearing frame and used for driving the bearing frame to move; the heavy block is connected with the lower end of the traction rope through the adjusting rope, when the bearing frame is located at the testing station, the bearing frame bears the heavy block, the traction rope is kept in a loosened state through the adjusting rope, when the bearing frame moves to the initial station, the heavy block is separated from the bearing frame, the traction rope is in a tightened state, and dog burst simulation is achieved through falling of the heavy block. And meanwhile, a driving device and a bearing frame are matched to realize simulation of multiple explosion rushing so as to complete testing of the fatigue strength of the traction rope.

The utility model relates to the technical field of pipe detection, in particular to a pipe test fixture device. The device comprises an outer fixing piece, a fixing cap and a pipe clamping assembly, a middle through hole with a taper slope is formed in the fixing cap, a through hole for liquid circulation is formed in the center of the outer fixing piece, one end of a pipe is provided with a beveled edge expanding outwards, the other end of the pipe penetrates through the middle through hole, and the beveled edge at one end of the pipe is clamped at the taper slope of the middle through hole. One end of the outer fixing piece is connected into the fixing cap and is in butt joint with the inverted edge of the pipe, the through hole is communicated with the interior of the pipe, the pipe clamping assembly is connected with the fixing cap, and the pipe clamping assembly is arranged on the outer wall of the pipe in a sleeving mode and presses the pipe. The universal joint is high in universality, the test requirements of pipes with the same outer diameter specification can be met by one joint, and the bursting test requirements of pipes with different wall thicknesses under the same outer diameter can be met; pure mechanical sealing is achieved, high temperature and high pressure are resisted, and disassembly is convenient after sample test cracking; o-shaped ring sealing is avoided, the efficiency is improved, and the test cost is saved.

The invention discloses a gas bursting test device, which relates to gas bursting tests and comprises a base, a console and a test box are fixedly connected to two sides of the top of the base respectively, a box door is movably connected to the surface of the test box, universal wheels are fixedly connected to four corners of the bottom of the base, and a limiting mechanism is arranged in an inner cavity of the test box. The limiting mechanism comprises a container limiting unit, and the container limiting unit is located in an inner cavity of the test box, according to the gas bursting test device, by arranging the limiting mechanism, the container limiting unit can automatically limit the test container when the test container is placed in the test box, displacement of the test container is avoided, and the detection precision is improved; the device limiting unit can automatically fix the container and quickly fix the experimental device in the positioning assembly through cooperation of a transmission structure, so that the stability of the whole experimental device is improved, displacement of the device in the experimental process is avoided, and the precision of experimental data is improved.

1. Name of the product in this design: Hydrostatic Testing Machine. 2. Application of this design: For long-term internal pressure resistance tests or instantaneous burst tests on pipes or fittings within a certain pressure range. 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.

The utility model relates to the field of testing devices, and discloses a bursting resistance testing device. The bursting test device comprises: a support platform for supporting a suction tube; the number of the impact parts is at least two, the impact parts are arranged on the mounting seat, the mounting seat and the supporting platform are oppositely arranged, the impact parts face the supporting platform and can move towards the supporting platform, and the impact parts are used for being sequentially arranged in the arrangement direction of the suction pipes and impacting the corresponding suction pipes. The at least two impact parts on the mounting base move towards the supporting platform, and the impact parts can impact the corresponding suction pipes respectively, so that the at least two suction pipes can be subjected to the bursting test at the same time, and compared with the mode that only one suction pipe can be tested at a time in the related technology, the bursting test efficiency of the suction pipes can be effectively improved.

The invention discloses a hard rock explosion test system and method in a deep ground stress environment, and belongs to the technical field of rock explosion optimization design, the system comprises a ground stress hydraulic loading module, a sample bearing module, an explosion generation module, a non-contact optical measurement module and an automatic trigger device; the method comprises the steps of sample processing, system assembling, blasting structure laying, sample surface processing, ground stress loading, measurement preparation, explosion testing and data processing. According to the hard rock explosion test system and method in the deep ground stress environment, the blank of a large-size and large-equivalent explosion test platform and analysis means under deep in-situ ground stress is filled; a parallel efficient calculation digital image correlation analysis system is constructed, and an explosion pressure field can be quickly inverted.

The invention discloses an automatic loading device for a bursting test. The automatic feeding device for the bursting test comprises a rack, a test bearing plate, a protection box, a jacking driver, a truss and a grabbing device, the connecting end of the test bearing plate is rotationally installed on the rack, the jacking driver is installed on the rack, the protection box is arranged on the rack and covers the test bearing plate, and the grabbing device is arranged on the rack and covers the test bearing plate. A front box door and a top box door are arranged on the protection box, the front box door and the connecting end of the test bearing plate are located on the same side of the protection box, the bottom face of the front box door is lower than the top face of the test bearing plate, and the grabbing device is installed on the truss. According to the automatic feeding device for the blasting test, the steel ring and the rock model can be automatically placed on the test bearing plate, and meanwhile the rock model is drilled.

The invention relates to an oil bag driven low-cost ultrahigh-pressure electromagnetic valve bursting test device which comprises a sealing pipe, a working cavity is formed in the sealing pipe, an expandable oil bag is arranged in the working cavity, and the inner space of the oil bag is isolated from the working cavity; the oil bag is communicated with an external pressurization system so as to swell under the pressurization effect of the pressurization system; the expandable oil bag is arranged in the working cavity of the sealing pipe, hydraulic oil is injected into the oil bag through the pressurization system, the oil bag is expanded, the volume of the working cavity is compressed, and therefore liquid which does not pollute equipment to be tested in the working cavity is pressed into the ultrahigh-pressure electromagnetic valve, and the bursting test on the high-pressure electromagnetic valve is achieved; compared with an existing scheme that hydraulic oil is directly used as a medium, pollution of the hydraulic oil to the interior of the electromagnetic valve can be effectively avoided, complex cleaning is not needed after the test, and the test cost and the operation difficulty are reduced.

The utility model relates to the technical field of gas cylinder performance detection, in particular to a fire-fighting gas cylinder bursting test device which comprises a shell, a sealing door is arranged on the front face of the shell, an observation window is arranged on the front face of the sealing door, a plurality of connecting holes and a fixing mechanism are arranged on the upper surface of the shell, and the fixing mechanism comprises a fixing assembly and a telescopic assembly. The fixing assembly comprises a moving seat connected into the shell in a sliding mode, a groove is formed in the upper surface of the moving seat, and limiting sliding grooves are formed in the side walls of the two sides of the shell. According to the utility model, through the arrangement of the fixing assembly, the gas cylinder to be tested can be conveniently fixed, so that a tester can enter a formal test process more quickly, the overall test efficiency is improved, and through the arrangement of the telescopic assembly, the test can be carried out in a relatively closed environment, so that the safety of the test can be improved; and a guarantee is provided for the safety of workers.

The invention relates to the technical field of condenser pipe pressure-resistant test equipment, and particularly discloses a condenser pipe pressure-resistant blasting test bed and method based on heat exchanger production, and the test bed comprises a first partition plate and a second partition plate which are fixedly arranged on the inner side wall of the test bed and are arranged in parallel up and down; the top of the first partition plate is provided with a test mechanism which extends to the top of the second partition plate and is arranged in a rectangular array, the outer wall of the test bench is provided with a cooling mechanism, and the test mechanism comprises a pressing mechanism which is arranged at the top of the second partition plate. And the end parts of the condensation pipes with different pipe diameters can be blocked, so that the stability of a subsequent pressure-resistant bursting test is improved, and the pressure sensor can enter different positions in the condensation pipe, so that whether the test of the condensation pipe is qualified or not can be mastered actually, and the practical test is convenient to use.

The utility model discloses a fire-fighting gas cylinder bursting test device which comprises a water pressure testing machine body, a movable opening and closing door is fixedly installed on the inclined face of the water pressure testing machine body, a gas cylinder frame is fixedly installed in a bursting chamber of the water pressure testing machine body, and supporting feet are fixedly installed at the four corners of the lower surface of the water pressure testing machine body. An access door is fixedly installed on the front surface of the hydrostatic testing machine body, and the movable opening and closing door comprises a guide rail plate frame, a first isolation net, a movable plate, a second isolation net, a gear and an electric motor. According to the fire-fighting gas cylinder bursting test device, the fire-fighting gas cylinder bursting test device can be automatically opened and closed through the movable opening and closing door, manual opening is not needed, a user does not need to worry that a cover plate hits hands due to instability of the support, and fire-fighting gas cylinders of different lengths and thicknesses can be automatically and firmly clamped through the gas cylinder frame; therefore, the fire-fighting gas cylinder is more convenient and labor-saving to disassemble and assemble, and the operation mode of installing the fire-fighting gas cylinder is simpler.

1. Name of the product in this design: Hydrostatic Pressure Burst Test Stand. 2. Purpose of this design: To simulate the static high-pressure environment that the product may withstand in actual operation, and to verify whether it meets design standards, industry specifications or safety requirements by gradually applying pressure and monitoring data. 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. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The utility model discloses a fire hose water pressure bursting test device, which comprises a box body, a pressurization system, a test mechanism, a recovery mechanism and a control cabinet, the box body is provided with a platform, a funnel and a platform I, and the test mechanism is provided with an adjustable mechanism; the adjustable mechanism comprises two guide rails and two sliding seats, and the testing mechanism comprises two testing assemblies. According to the utility model, the pressurization system composed of the circulating motor and the booster pump is used for pressurization supply of water pressure, and the two test assemblies are combined to realize synchronous and rapid pressurization water injection, so that the pressurization effect and efficiency are improved, the pressure maintaining effect is ensured, and the test effect is improved; the funnel is used for guiding flow, and the recycling mechanism is used for testing collection of water after burst, so that waste of water resources is reduced, the recycled water is recycled for testing, and the testing cost is reduced.

The utility model relates to the technical field of testing devices, and discloses a filtering assembly pressure bursting testing device which comprises a water inlet pipeline, a pressure applying air cylinder and a pressure detector, the water inlet pipeline is used for conveying water to a filtering assembly, the pressure applying air cylinder is provided with a detection column, the detection column is provided with a connecting pipeline, the connecting pipeline is connected with the pressure detector, and the pressure detector is connected with the pressure detector. The water inlet pipeline, the pressure applying air cylinder and the pressure detector are all arranged on the base, a water retaining ring is arranged on the base, and the connecting pipeline is located in the water retaining ring. The water retaining ring is arranged on the connecting pipeline, so that water in the connecting pipeline can spread in the water retaining ring, the water retaining ring limits the water, the water is prevented from flowing to the outside, a worker can conveniently wipe the water, and the cleaning difficulty of the worker is reduced.

The invention relates to a pipeline pressure testing technology, and aims to provide a pipe-diameter-variable pipeline bursting test sealing device. The device comprises sealing structures installed at the two ends of a to-be-detected pipeline respectively, and each sealing structure comprises a nested fixing assembly and a composite sealing structure. The nested mounting assembly comprises an end cover, a reducing ring and a plug, the composite sealing structure comprises an elastic sealing ring and a deformable conical surface annular ring which are arranged on the plug in a sleeving mode. The conical surface annular ring is adaptively embedded in the wedge-shaped space, and the annular conical surface of the conical surface annular ring is attached to the conical surface transition between the two steps; the elastic sealing ring is located on the outer side of the conical surface annular ring and connected with the inner cavity space of the to-be-detected pipeline. According to the invention, frequent replacement of a loading piece of a testing machine according to the change of the size of the to-be-tested pipeline in a traditional testing scheme can be avoided; by means of the mechanical sealing joint instead of a welding structure, the sealing performance can be greatly improved, and more reliable self-tightening sealing under high pressure is achieved.

The utility model relates to the field of pipe tests, and discloses a sealing clamp for a pipe pressure-resistant bursting test, which comprises a protective pipe, sealing structures are arranged on the upper portion and the lower portion of the protective pipe, each sealing structure comprises two connecting pieces, and the two connecting pieces are fixedly connected with the upper portion and the lower portion of the protective pipe respectively. Fastening covers are arranged on the sides, away from each other, of the two connecting pieces, the sealing structure further comprises two sealing assemblies, a connector is installed in the middle of the top face of the sealing assembly located on the upper portion, and a pressure release valve is installed in the middle of the bottom of the sealing assembly located on the lower portion; the ends, close to the sealing assembly, of the connector and the pressure release valve are each provided with a connecting pipe. According to the utility model, the sealing element is matched with the protective pipe, the gland is matched with the sealing gasket, and the limiting gasket is matched with the fixing cap, so that pipes with different sizes can be better limited and sealed by the device, and the practicability of the device is effectively improved.

The utility model relates to the technical field of blasting. The utility model aims to provide an organic glass plate blasting model test device which comprises an organic glass plate, two coated steel plates arranged on the upper side and the lower side of the organic glass plate, and two rubber plates clamped between the coated steel plates and the two sides of the organic glass plate, a plurality of groups of bolt holes are formed in the edges of the two coated steel plates in pairs, and the coated steel plates are tightened by connecting bolts penetrating through the bolt holes; a blast hole used for installing an explosion body is formed in the middle of the organic glass plate, a blocking hole is formed in the position, opposite to the blast hole, of the wrapping steel plate, and a hole blocking steel plug is arranged in the blocking hole. According to the device, the quasi-static effect of detonation gas can be brought into full play, and the device accords with boundary conditions which are generally adopted in practical engineering during reverse detonation, that is, the detonation gas is still located in a blast hole and a crack after detonation and does not overflow, so that a high-pressure state is maintained, and the quasi-static effect is enhanced compared with a conventional organic glass plate blasting test.

The present application relates to the technical field of rupture disc processing, and provides a forming process for indentations and weak grooves on a reverse-arched rupture disc, which can change the overall rigidity of the structure during forming, has high forming efficiency and low waste rate, and comprises the following steps: 1) a material selection and size design step of a flat plate-shaped rupture disc; 2) a forming step of blowing and forming the flat plate-shaped rupture disc into a reverse-arched rupture disc through a blowing and forming die; 3) a processing step of weak grooves on the reverse-arched rupture disc; and 4) a step of installing the reverse-arched rupture disc on a blasting test device to perform a blasting test, wherein the flat plate-shaped rupture disc in the step 2) is blown and formed into a reverse-arched rupture disc through a blowing and forming die, and at least one indentation is formed on the surface of the reverse-arched rupture disc at the same time.

The invention discloses a rupture test method, system and device for a rupture disk in a hydrogen environment, and relates to the technical field of material physical property test.The method comprises the steps that sweeping and blowing gas is introduced into a controlled test pipeline, and when monitoring data is lower than a threshold value, hydrogen is introduced into the controlled test pipeline; controlling the temperature of the test cavity to reach a preset temperature value and pressurizing the hydrogen to a preset target pressure value; the hydrogen pressure is obtained in real time; the pressure rise rate is controlled through a preset compound control algorithm; hydrogen concentration data are obtained in real time, and pressure change characteristics are analyzed; and when the hydrogen concentration data exceeds a threshold value or the pressure change characteristic conforms to the blasting judgment characteristic, a safety interlocking instruction is executed. According to the invention, through graded pressurization and pressurization rate closed-loop control, the problems that the blasting performance test cannot be carried out in a hydrogen environment and the hydrogen blasting performance of the rupture disk cannot be accurately tested and evaluated in the prior art are solved, and the blasting performance test and evaluation of the hydrogen blasting disk in a simulated real environment are realized.

The invention relates to a method for predicting the service life of a glass reinforced plastic pipe under the stress action. The method comprises the following specific steps: performing a hydrostatic test on a to-be-tested glass reinforced plastic pipe under the stress action; performing a hydraulic bursting test on the glass fiber reinforced plastic pipe subjected to the hydrostatic test; fitting the data of the hydrostatic pressure time and the bursting strength value, taking the logarithm value of the hydrostatic pressure time as an abscissa and the logarithm value of the bursting strength as an ordinate, performing numerical fitting by utilizing a linear regression method to obtain a fitting equation lnP = a * lnt + b of the hydrostatic pressure time and the bursting strength value, and calculating the service life of the glass fiber reinforced plastic pipe. The invention provides a novel glass reinforced plastic pipe service life prediction method based on stress action, overcomes the defects of the existing service life prediction technology of a glass reinforced plastic pipe for gathering and transportation in an oil and gas field, and can predict the service life of the glass reinforced plastic pipe under the combined action of four influence factors, namely pipe characteristics, a conveying medium, environmental factors and a stress state. The method is short in test period, convenient to implement and high in prediction reliability.

The application discloses a kind of hydrogen environment under rupture disc burst test method, system and device, it is related to material physical property testing technical field, the method includes: to the controlled test pipeline is admitted to sweep and blow gas, when monitoring data is lower than threshold value, to the controlled test pipeline is admitted to hydrogen;Control the temperature of test cavity reaches preset temperature value and pressurize hydrogen to preset target pressure value;Real-time acquisition hydrogen pressure;Pressure rising rate is controlled by preset composite control algorithm;Real-time acquisition hydrogen concentration data, analyze pressure variation characteristics;When hydrogen concentration data exceeds threshold value, or when pressure variation characteristics meet burst judgment characteristics, execute safety interlock instruction.The application solves the problem that the prior art cannot carry out burst performance test under hydrogen environment by staged pressurization and pressure rising rate closed-loop control, and simultaneously cannot accurately test and evaluate the hydrogen blast performance of rupture disc, realizes the burst performance test and evaluation of hydrogen rupture disc in simulated real environment.

The utility model relates to the technical field of bursting tests, in particular to a spinning workpiece bursting test furnace with an auxiliary in-out mechanism, which comprises a furnace body, a bottom frame and the auxiliary in-out mechanism, the auxiliary in-out mechanism is arranged on one side of the furnace body and comprises a rack, a receiving groove, a rotating wheel and a connecting rod, and a baffle is arranged on one side of the upper end face of the rack. First sliding rails are arranged on the two sides of the upper end face of the rack in the length direction of the rack, second sliding rails parallel to the first sliding rails are arranged on the two sides of the rack, shaft seats are symmetrically arranged on the first sliding rails, linkage plates are fixedly connected to the side faces of the shaft seats, rollers are rotationally arranged at the lower ends of the linkage plates, and a door frame is fixedly connected to one side of each shaft seat; a sliding cylinder is fixed to the door frame, a sliding column is slidably arranged in the sliding cylinder, one end of a connecting rod is eccentrically hinged to the rotating wheel, the other end of the connecting rod is hinged to the sliding column, the bearing groove is fixedly connected to the upper end face of the rack, and conveying assemblies are arranged at the inner bottom of the furnace body and the bottom face of the bearing groove. Therefore, the efficiency of the bursting test can be improved, and the safety is good.