CN116008101A - Drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device - Google Patents
Drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device Download PDFInfo
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- CN116008101A CN116008101A CN202310025060.8A CN202310025060A CN116008101A CN 116008101 A CN116008101 A CN 116008101A CN 202310025060 A CN202310025060 A CN 202310025060A CN 116008101 A CN116008101 A CN 116008101A
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Abstract
The invention relates to a drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device, and belongs to the field of mechanical property testing of materials. The device mainly comprises a drop hammer driving module, an electromagnetic driving indentation module, an environment loading module and an in-situ monitoring module. The impact drop hammer with adjustable mass is integrally positioned to a specific height through a stepping motor, so that initial drop hammer impact energy is obtained as required; the electromagnetic energy device can be used for ejecting the impact drop hammer through the energy storage spring in a transient state so as to realize high-speed impact indentation test of the coupling of drop hammer gravitational potential energy and electromagnetic energy; the testing device can obtain impact load-indentation depth curves in a test mode, and impact indentation tests in different modes can be realized by modularly replacing impact pressure heads in different types; constructing a high-low temperature environment of the tested material through the Peltier refrigerating sheet and the high-frequency induction heating coil; meanwhile, deformation behavior and structural evolution of the material under high-speed impact pressing are monitored in real time by using a high-speed camera and infrared thermal imaging.
Description
Technical Field
The invention relates to the field of mechanical property testing of materials, in particular to a high-energy impact indentation experimental device integrating electromagnetic driving, modularized integration, high strain rate, high-low temperature loading and real-time in-situ monitoring, and particularly relates to a drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device. According to the invention, the accurate change of the overall mass and the impact height of the drop hammer can be realized to meet different experimental requirements, the actual service working condition construction is carried out on the tested material through the Peltier refrigerating sheet, the high-frequency induction heating coil and the like, and the real-time in-situ monitoring is carried out on the tested material by utilizing the high-speed camera and the infrared thermal imager. And (3) carrying out data acquisition on related data through a high-precision sensor, and uncovering a mechanical behavior and deformation damage failure mechanism of the material under the working condition of high-energy impact pressing.
Background
In the key fields of aviation equipment, water surface ships and the like, the bearing structural material is often required to be in service under high-speed impact and high/low-temperature coupling working conditions. The transient deformation, alternating dynamic load and unclear impact failure mechanism which are accompanied in the impact process become technical bottlenecks for restricting the improvement of the efficiency and the safe service of key materials. Therefore, it is necessary to construct a high-speed impact working condition of material force thermal coupling through a specific device, and further develop in-situ impact tests to reveal the damage failure mechanism and service performance degradation rule of the key materials.
The traditional drop hammer testing machine has low automation degree, poor data processing capability, can only test the impact resistance of various pipes and plates, has the defects of insufficient visual test operation process, invisible information such as test times, impact height and speed, lack of efficient informatization and intelligent management of test information acquisition, processing and analysis and incapability of capturing morphological structure changes of materials in time in the impact process.
The existing material impact dynamics test equipment represented by Hopkinson bars and light air cannons is difficult to realize parallel synchronous detection and data fusion analysis of multiple parameters such as impact response, temperature distribution, defect nucleation and the like of materials. In addition, the current experimental study on damage, defect nucleation, growth and impact failure of a material micro-area is mostly dependent on static monitoring of a scanning/transmission electron microscope, real-time characterization analysis under high-speed impact is difficult to realize, and the evolution rule of the material performance under the impact condition cannot be intuitively revealed, so that the study on the high-speed impact damage failure mechanism of a key material is greatly limited, and the innovative development of the impact resistant material is restricted. Under the condition, the traditional drop hammer impact device and the material characterization analysis instrument are integrated, and the modularized high-low temperature loading device is combined, so that the real-time correlation between the multiple performances of the material and the microstructure evolution under the working conditions of force and thermal coupling high-speed impact is directly obtained, and a powerful tool for revealing the material temperature change impact failure mechanism is formed.
Disclosure of Invention
The invention relates to a drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device which has the characteristics of modularized integration, high precision, real-time in-situ monitoring, high-low temperature continuity and the like. The mechanical properties of the material under the high strain rate and high and low temperature environment can be researched, the deformation behavior and the performance evolution rule of the material under the extreme working condition can be obtained by carrying out equivalent in-situ test and data fusion analysis on the measured material, and the instrument support is provided for revealing the damage failure mechanism and the service performance degradation rule of the material.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a drop hammer-electromagnetic coupling drive formula normal position impact indentation testing arrangement, mainly by drop hammer drive module, electromagnetic drive indentation module, environment loading module, normal position monitoring module etc. the module is constituteed, including step motor 1, consolidate channel-section steel 2, ball screw 3, guiding axle 4, magnetism is inhaled motor 5, energy storage spring 6, magnetic chuck 7, drop hammer weight 8, safety cover 9, camera support 10, high-speed camera 11, xy axis displacement guide rail 12, rag bolt 13, base 14, high frequency induction heating control machine 15, infrared camera 16, force sensor 17, impact pressure head 18, high frequency induction heating coil 19, acoustic emission sensor 20, bump test stand 21, peltier refrigeration piece 22, impact device supporting bench 23, ball screw 3 in the drop hammer drive module is connected with electromagnetic drive indentation module through bearing cooperation with guiding axle 4, play the effect of drive indentation module.
The drop hammer driving module is composed of a stepping motor 1, a ball screw 3 and a guide shaft 4, the stepping motor 1 is fixed above a reinforced channel steel 2 through screws, the reinforced channel steel 2 is welded with a base 14 into a whole, the stepping motor 1 drives the ball screw 3 to move through pulse signals so as to move the whole drop hammer, the whole drop hammer is lifted to the height required to fall, the ball screw 3 and the guide shaft 4 are downwards and fixedly connected to the base 14 and upwards connected to the reinforced channel steel 2, the ball screw 3 and the guide shaft are combined to guide the whole drop hammer to move, and the drop hammer can accurately impact a tested material when falling to a collision test table 21.
The drop hammer is characterized in that the drop hammer is integrally composed of a magnetic chuck 7, drop hammer weights 8, a force sensor 17, an impact pressure head 18, a guide rail middle connecting plate 23.2 and a guide rail lower connecting plate 23.1, wherein the magnetic chuck 7 is fixed on the guide rail middle connecting plate 23.2 and is connected with the guide rail middle connecting plate as a whole, the drop hammer weights 8 are lapped on the guide rail lower connecting plate 23.1 and are locked and clamped downwards by the guide rail middle connecting plate 23.2, and the force sensor 17 is arranged on the guide rail lower connecting plate 23.1 and is tightly connected with the impact pressure head 18 through screws.
The electromagnetic driving indentation module consists of a magnetic motor support plate 23.4, a guide rail upper connecting plate 23.3, a guide rail middle connecting plate 23.2 and a guide rail lower connecting plate 23.1, wherein the magnetic motor support plate 23.4 is tightly fixed by a screw, the energy storage spring is divided into two parts, namely an energy storage spring I6.1 and an energy storage spring II 6.2, the energy storage spring I6.1 is connected to the magnetic motor 5, and the energy storage spring II 6.2 is connected with the guide rail upper connecting plate 23.3 into a whole through spot welding and is positioned between the guide rail upper connecting plate 23.3 and the guide rail middle connecting plate 23.2.
The in-situ monitoring module consists of a camera support 10, a high-speed camera 11, an xy axis displacement guide rail 12, an infrared camera 16, an acoustic emission sensor 20 and a collision test table 21, wherein the camera support 10 is fixed on the xy axis displacement guide rail 12 by an internal screw to form a displacement device of the camera, the xy axis displacement guide rail 12 is fixed on a base 14 by a set screw, and the acoustic emission sensor 20 is embedded into a positioning hole arranged on the collision test table 21.
The environment loading module consists of a high-frequency heating controller 15, a high-frequency induction heating coil 19, a collision test table 21 and a Peltier refrigerating sheet 22, wherein the collision test table 21 is fixedly connected with the base 14, a stage for placing a tested material is arranged on the test table, the high-frequency induction heating coil 19 is arranged above the stage, and the Peltier refrigerating sheet 22 is adhered around the stage through strong glue.
The electromagnetic driving indentation module realizes transient ejection of the impact pressure head 18 through cooperation of the magnetic attraction motor 5 and the energy storage spring 6, the magnetic attraction motor 5 is electrified to attract the magnetic chuck 7, meanwhile, the whole falling weight upwards compresses the energy storage spring 6, the whole falling weight is released by power failure of the magnetic attraction motor 5, the energy storage spring 6 rebounds, vertical downward impact load is applied to the whole falling weight, the whole falling weight obtains higher impact energy, the falling weight 8 can adjust the mass according to test requirements, the force sensor 17 is used for testing the impact load of the whole falling weight to impact the tested material, and the impact pressure head 18 of different types is replaced in a modularized mode, so that the impact indentation test of different modes can be realized.
The in-situ monitoring module clamps the high-speed camera 11 and the infrared camera 16 through a group of camera brackets 10, respectively adjusts the heights of the two cameras along the z-axis direction, the xy-axis displacement guide rail 12 is used for adjusting the coordinates of the two cameras in the horizontal plane, and realizes the adjustment of a monitoring focus, so that the morphology and the temperature change characteristics of a micro-area of a measured material can be conveniently obtained respectively, meanwhile, the acoustic emission sensor 20 and the geometric axis of the impact pressure head 18 are arranged in a collinear way, the bottom of a positioning mounting hole of the impact test bench 21 is close to the surface of the impact test bench, and the front end of a probe of the acoustic emission sensor 20 is clung to the bottom of the positioning mounting hole and is close to the measured material, so that the attenuation of acoustic signals of the acoustic broadband acoustic emission sensor is weakened. The geometric axes of the high-speed camera 11 and the infrared camera 16 form an acute angle with the direction opposite to the impact direction, namely, the focal points of optical imaging and infrared imaging are positioned in the same micro-area of the surface of the measured material, so that the real-time identification of the structural evolution and the temperature distribution of the surface of the measured material under the transient impact pressing-in load is ensured.
The environment loading module respectively constructs low-temperature and high-temperature service environments of the tested materials through the Peltier refrigerating sheets 22 and the high-frequency induction heating coils 19, wherein the Peltier refrigerating sheets 22 are adhered to four sides of the object table of the collision test table 21 in an array mode, the cooling power is adjusted by simultaneously applying variable voltage to the four groups of Peltier refrigerating sheets 22, namely, the tested materials are subjected to refrigeration control in a heat conduction mode, the high-frequency induction heating coils 19 are integrally sheathed and envelop the object table, and the tested materials are subjected to high-power short-time heating in a heat conduction mode.
The invention has the beneficial effects that: meanwhile, the device has the characteristics of modularized integration, high precision, in-situ monitoring, high-low temperature continuous loading and the like. The variable-temperature impact working condition of the material is simulated by utilizing the pressure head to match the impact of the drop hammer and the adjustment of the high-low temperature environment, meanwhile, the impact energy of the hammer body can be progressively changed by changing the weight quality and changing the height of the hammer body, different experimental requirements are met, the mechanical properties of the material under the high-strain rate and high-low temperature environments can be researched, the deformation behavior and the performance evolution rule of the material under the extreme working condition are obtained by carrying out equivalent in-situ test and data fusion analysis on the measured material, and the instrument support is provided for revealing the damage failure mechanism and the service performance degradation rule of the material.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate and explain the invention and together with the description serve to explain the invention.
FIG. 1 is an overall exterior isometric view of the present invention;
FIG. 2 is an isometric view of an electromagnetically driven indentation module of the present invention;
FIG. 3 is an isometric view of an environmental loading module and an in-situ monitoring module of the present invention;
fig. 4 is a schematic view of an impact ram of the present invention.
In the figure: 1. a stepping motor; 2. reinforcing channel steel; 3. a ball screw; 4. a guide shaft; 5. a magnetic motor; 6. an energy storage spring; 6.1, an energy storage spring I; 6.2 energy storage spring II; 7. a magnetic chuck; 8. drop weight; 9. a protective cover; 10. a camera mount; 11. a high-speed camera; 12. an xy axis displacement guide rail; 13. an anchor bolt; 14. a base; 15. a high frequency induction heating controller; 16. an infrared camera; 17. a force sensor; 18. impact pressure heads; 19. a high-frequency induction heating coil; 20. an acoustic emission sensor; 21. a collision test bed; 22. peltier cooling piece; 23. a magnetic motor supporting table; 23.1 lower guide rail connecting plates; 23.2, connecting plates in the guide rails; 23.3, connecting plates on the guide rails; 23.4, a suction motor supporting plate.
Detailed Description
The details of the present invention and its specific embodiments are further described below with reference to the accompanying drawings.
Referring to fig. 1 to 4, there is shown: the invention provides a drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device which mainly comprises a drop hammer driving module, an electromagnetic driving indentation module, an environment loading module and an in-situ monitoring module. The drop hammer driving module is composed of a stepping motor 1, a ball screw 3 and a guide shaft 4, the stepping motor 1 is fixed above a reinforcing channel steel 2 through screws, the reinforcing channel steel 2 is welded with a base 14 into a whole, the stepping motor 1 drives the ball screw 3 to move through pulse signals so as to move the whole drop hammer, the whole drop hammer is lifted to the height required to fall, the ball screw 3 and the guide shaft 4 are downwards and fixedly connected to the base 14 and upwards connected to the reinforcing channel steel 2, the ball screw 3 and the guide shaft are combined to play a role in guiding the whole drop hammer to move, and the whole drop hammer is guaranteed to accurately impact a tested material when falling to a collision test bench 21.
In this embodiment, the whole of falling weight by magnetic chuck 7, falling weight 8, force transducer 17, impact pressure head 18, connecting plate 23.2 in the guide rail, connecting plate 23.1 under the guide rail are connected as an organic wholely under the magnetic chuck 7 is fixed on connecting plate 23.2 in the guide rail, falling weight 8 evenly put on connecting plate 23.1 under the guide rail by connecting plate 23.2 down movement locking chucking in the guide rail, adjust the holistic quality of falling weight through the weight quantity of control placement and make it satisfy different experimental demands, force transducer 17 installs on connecting plate 23.1 under the guide rail and passes through screw zonulae occludens with impact pressure head 18.
In the embodiment, the electromagnetic driving indentation module consists of a magnetic attraction motor 5, an energy storage spring 6, a magnetic chuck 7, a drop weight 8, a force sensor 17, an impact pressure head 18 and a magnetic attraction motor supporting table 23, wherein the magnetic attraction motor supporting table 23 consists of a magnetic attraction motor supporting plate 23.4, a guide rail upper connecting plate 23.3, a guide rail middle connecting plate 23.2 and a guide rail lower connecting plate 23.1, the magnetic attraction motor is tightly fixed on the magnetic attraction motor supporting plate 23.4 through screws, the guide rail upper connecting plate 23.3 is connected with the magnetic attraction motor supporting plate 23.4 through fastening screws, the energy storage spring is divided into two parts, namely an energy storage spring I6.1 and an energy storage spring II 6.2, the energy storage spring I6.1 is connected on the magnetic attraction motor 5, the energy storage spring II 6.2 is connected with the guide rail upper connecting plate 23.3 into a whole through spot welding, between the upper guide rail connecting plate 23.3 and the middle guide rail connecting plate 23.2, the stepping motor 1 is used for reaching a designated position, the magnetic attraction motor 5 and the energy storage spring 6 are used for realizing transient ejection of the impact pressure head 18, the magnetic attraction motor 5 is electrified to attract the magnetic chuck 7, the energy storage spring 6 is compressed upwards by the whole falling weight, the whole falling weight is released by the power failure of the magnetic attraction motor 5, the energy storage spring 6 rebounds, and vertical downward impact load is applied to the whole falling weight, so that the whole falling weight obtains higher impact energy, the weight 8 of the falling weight can adjust the mass according to test requirements, the force sensor 17 is used for testing the impact load of the whole falling weight to impact a tested material, and the impact pressure head 18 of different types can be replaced in a modularized mode to realize impact indentation tests of different modes.
In this embodiment, the in-situ monitoring module clamps the high-speed camera 11 and the infrared camera 16 through a group of camera brackets 10 and respectively adjusts the heights of the two cameras along the z-axis direction, the xy-axis displacement guide rail 12 is used for adjusting the coordinates of the two cameras in the horizontal plane and realizing the adjustment of the monitoring focus, so that the morphology and the temperature change characteristics of the micro-area of the measured material can be conveniently obtained respectively, meanwhile, the acoustic emission sensor 20 and the geometric axis of the impact pressure head 18 are arranged in a collinear way, the bottom of the positioning mounting hole of the impact test bench 21 is close to the surface of the impact test head, and the front end of the probe of the acoustic emission sensor 20 is clung to the bottom of the positioning mounting hole and is close to the measured material so as to weaken the acoustic signal attenuation of the acoustic emission sensor. The geometric axes of the high-speed camera 11 and the infrared camera 16 form an acute angle with the direction opposite to the impact direction, namely, the focal points of optical imaging and infrared imaging are positioned in the same micro-area of the surface of the measured material, so that the real-time identification of the structural evolution and the temperature distribution of the surface of the measured material under the transient impact pressing-in load is ensured.
In this embodiment, the environment loading module respectively constructs a low-temperature and high-temperature service environment of the measured material through the peltier cooling plates 22 and the high-frequency induction heating coil 19, wherein the peltier cooling plates 22 are adhered to four sides of the stage of the collision test stand 21 in an array manner, and the four groups of peltier cooling plates 22 are simultaneously applied with variable compression to realize the adjustment of cooling power, namely, the measured material is subjected to refrigeration control in a heat conduction manner, the high-frequency induction heating coil 19 is integrally sheathed and enveloped with the stage, and the measured material is subjected to high-power short-time heating in a heat conduction manner.
The above description is only a preferred example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a drop hammer-electromagnetic coupling drive formula normal position impact indentation testing arrangement which characterized in that: the device mainly comprises a drop weight driving module, an electromagnetic driving indentation module, an environment loading module and an in-situ monitoring module, and mainly comprises a stepping motor (1), a reinforced channel steel (2), a ball screw (3), a guide shaft (4), a magnetic attraction motor (5), an energy storage spring (6), a magnetic chuck (7), a drop weight (8), a protective cover (9), a camera support (10), a high-speed camera (11), an xy axis displacement guide rail (12), an anchor bolt (13), a base (14), a high-frequency induction heating controller (15), an infrared camera (16), a force sensor (17), an impact pressure head (18), a high-frequency induction heating coil (19), an acoustic emission sensor (20), a collision test table (21), a Peltier refrigerating sheet (22) and an impact device supporting table (23), wherein the ball screw (3) in the drop weight driving module is connected with the electromagnetic driving indentation module through bearing fit with the guide shaft (4) to play a role in driving the indentation module;
the drop hammer driving module is composed of a stepping motor (1), a ball screw (3) and a guide shaft (4), wherein the stepping motor (1) is fixed above the reinforced channel steel (2) through screws, the reinforced channel steel (2) and a base (14) are welded into a whole, the stepping motor (1) drives the ball screw (3) to move through pulse signals so as to move the drop hammer whole, the drop hammer whole is lifted to the height required to fall, the ball screw (3) and the guide shaft (4) are fixedly connected to the base (14) downwards and are connected to the reinforced channel steel (2) upwards, the ball screw (3) and the guide shaft (4) are combined to play a role in guiding the integral movement of the drop hammer, and the integral drop hammer can accurately impact a tested material when falling to a collision test bench (21);
the drop hammer is characterized in that the drop hammer is integrally composed of a magnetic chuck (7), a drop hammer weight (8), a force sensor (17), an impact pressure head (18), a guide rail middle connecting plate (23.2) and a guide rail lower connecting plate (23.1), wherein the magnetic chuck (7) is fixed on the guide rail middle connecting plate (23.2) to be connected with the guide rail middle connecting plate into a whole, the drop hammer weight (8) is lapped on the guide rail lower connecting plate (23.1) and is locked and clamped downwards by the guide rail middle connecting plate (23.2), and the force sensor (17) is arranged on the guide rail lower connecting plate (23.1) to be tightly connected with the impact pressure head (18) through a screw;
the electromagnetic driving indentation module consists of a magnetic motor (5), an energy storage spring (6), a magnetic chuck (7), a drop weight (8), a force sensor (17), an impact pressure head (18) and an impact device supporting table (23), wherein the impact device supporting table (23) consists of a magnetic motor supporting plate (23.4), an upper guide rail connecting plate (23.3), a middle guide rail connecting plate (23.2) and a lower guide rail connecting plate (23.1), the magnetic motor (5) is tightly fixed on the magnetic motor supporting plate (23.4) through screws, the energy storage spring is divided into two parts, namely an energy storage spring I (6.1) and an energy storage spring II (6.2), the energy storage spring I (6.1) is connected to the magnetic motor (5), and the energy storage spring II (6.2) is connected with the upper guide rail connecting plate (23.3) into a whole through spot welding and is positioned between the upper guide rail connecting plate (23.3) and the middle guide rail connecting plate (23.2);
the in-situ monitoring module consists of a camera bracket (10), a high-speed camera (11), an xy axis displacement guide rail (12), an infrared camera (16), an acoustic emission sensor (20) and a collision test table (21), wherein the camera bracket (10) is fixed on the xy axis displacement guide rail (12) by an internal screw to form a displacement device of a camera, the xy axis displacement guide rail (12) is fixed on a base (14) by a set screw, and the acoustic emission sensor (20) is embedded in a positioning hole arranged on the collision test table (21);
the environment loading module consists of a high-frequency induction heating control machine (15), a high-frequency induction heating coil (19), a collision test table (21) and a Peltier refrigerating sheet (22), wherein the collision test table (21) is fixedly connected with a base (14), an objective table for placing a tested material is arranged on the test table, the high-frequency induction heating coil (19) is arranged above the objective table, and the Peltier refrigerating sheet (22) is adhered around the objective table through strong glue.
2. The drop hammer-electromagnetic coupling driving type in-situ impact indentation testing apparatus as recited in claim 1, wherein: the electromagnetic driving indentation module realizes transient ejection of the impact pressure head (18) through cooperation of the magnetic attraction motor (5) and the energy storage spring (6), the magnetic attraction motor (5) is electrified to attract the magnetic chuck (7), meanwhile, the whole falling weight compresses the energy storage spring (6) upwards, the whole falling weight is released by power outage of the magnetic attraction motor (5), the energy storage spring (6) rebounds, vertical downward impact load is applied to the whole falling weight, the whole falling weight obtains higher impact energy, the weight (8) of the falling weight can adjust the quality according to test requirements, the force sensor (17) is used for testing the impact load of the whole falling weight to the tested material, and the impact pressure head (18) of different types can be replaced in a modularized mode to realize impact indentation tests of different modes.
3. The drop hammer-electromagnetic coupling driving type in-situ impact indentation testing apparatus as recited in claim 1, wherein: the in-situ monitoring module clamps the high-speed camera (11) and the infrared camera (16) through a group of camera supports (10) and respectively adjusts the heights of the two cameras along the z-axis direction, the xy-axis displacement guide rail (12) is used for adjusting the coordinates of the two cameras in the horizontal plane and realizing the adjustment of a monitoring focus, so that the morphology and the temperature change characteristics of a micro-area of a measured material are conveniently obtained respectively, meanwhile, the acoustic emission sensor (20) and the geometric axis of the impact pressure head (18) are arranged in a collinear way, the bottom of a positioning mounting hole of the impact test bed (21) is close to the surface of the impact pressure head, the front end of the probe of the acoustic emission sensor (20) is clung to the bottom of the positioning mounting hole and is close to the measured material so as to weaken the acoustic signal attenuation of the acoustic emission sensor, namely the geometric axis of the high-speed camera (11) and the infrared camera (16) form an acute angle with the opposite direction of the impact direction, namely the optical imaging and the infrared imaging focus are positioned in the same micro-area of the surface of the measured material so as to ensure the real-time identification of the evolution and the temperature distribution of the surface of the measured material under the transient impact pressure load.
4. The drop hammer-electromagnetic coupling driving type in-situ impact indentation testing apparatus as recited in claim 1, wherein: the environment loading module respectively constructs low-temperature and high-temperature service environments of the tested materials through the Peltier refrigerating sheets (22) and the high-frequency induction heating coils (19), wherein the Peltier refrigerating sheets (22) are adhered to four sides of an objective table of the collision test table (21) in an array mode, the cooling power is adjusted by simultaneously applying variable voltage to the four groups of Peltier refrigerating sheets (22), namely, the tested materials are subjected to refrigeration control in a heat conduction mode, the high-frequency induction heating coils (19) are integrally sheathed and enveloped on the objective table, and the tested materials are subjected to high-power short-time heating in a heat conduction mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310025060.8A CN116008101A (en) | 2023-01-09 | 2023-01-09 | Drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310025060.8A CN116008101A (en) | 2023-01-09 | 2023-01-09 | Drop hammer-electromagnetic coupling driving type in-situ impact indentation testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223238A (en) * | 2023-05-09 | 2023-06-06 | 秦皇岛海尊建设工程材料检测有限公司 | Safety detection system for building materials |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223238A (en) * | 2023-05-09 | 2023-06-06 | 秦皇岛海尊建设工程材料检测有限公司 | Safety detection system for building materials |
| CN116223238B (en) * | 2023-05-09 | 2023-11-03 | 秦皇岛海尊建设工程材料检测有限公司 | Safety detection system for building materials |
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