CN113029807B - Material high temperature service performance detection equipment - Google Patents
Material high temperature service performance detection equipment Download PDFInfo
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- CN113029807B CN113029807B CN202110241900.5A CN202110241900A CN113029807B CN 113029807 B CN113029807 B CN 113029807B CN 202110241900 A CN202110241900 A CN 202110241900A CN 113029807 B CN113029807 B CN 113029807B
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- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
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- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0658—Indicating or recording means; Sensing means using acoustic or ultrasonic detectors
Abstract
The invention relates to a device for detecting the high-temperature service performance of a material, which comprises: the furnace body unit is used for providing an experimental space for detecting the detected material; the furnace body unit is provided with a visible window module, and the visible window module is used for providing a window for the optical detection unit to detect the detected material; the heating and cooling unit is used for heating the detected material and cooling the furnace body unit; the cooling module of the heating and cooling unit is arranged on the outer side of the furnace body unit; the load unit is used for providing vertical load for the detected material; a vacuum unit for evacuating an inner space of the furnace body unit to a vacuum state; the optical detection unit is used for detecting the change of the detected material in real time; the optical detection unit is arranged on the outer side of the furnace body unit and is matched with the height of the visible window module; and the acoustic detection unit is used for acquiring the sound wave change in the detection process. The invention can intuitively observe the change state of the detected material in the high-temperature service process in real time, and can realize multi-scale synchronous detection and analysis of invisible information such as internal microcrack formation, expansion, particle slippage and the like and material surface macroscopic strain distribution information in the high-temperature state of the material.
Description
Technical Field
The invention relates to the technical field of material service performance detection, in particular to a device for detecting the high-temperature service performance of a material.
Background
High-temperature materials such as high-temperature alloys, composite materials, ceramics and the like are widely applied to high-temperature industrial production such as metallurgy, electric power, petrochemical industry, aerospace industry and the like, the service environment of the high-temperature materials is usually a high-temperature condition, and the high-temperature mechanical behavior (aging, fracture, creep and the like) of the materials is very important for the reliability evaluation, service life prediction and safety design of the safe and efficient operation and the structure of equipment in the long-time service process. The traditional material high-temperature service performance research mode is extensive, and the high-temperature service performance is evaluated in an extensive manner by means of strength test or thermal shock and the like, so that dynamic transient information of the high-temperature service performance of the material is difficult to obtain, and the development and application of the high-performance material are limited.
The method is a key and basis for evaluating and researching the high-temperature mechanical behavior of the material by acquiring the deformation and strain field information of the surface of the material under the high-temperature condition. The existing strain measurement methods are generally classified into a contact strain measurement method and a non-contact strain measurement method. The contact type strain measurement method is characterized by the strain of a material according to the displacement of a measuring head, and on one hand, the measurement range is limited, and the strain can only be measured at a single point or a local part; on the other hand, the contact strain measurement can only obtain average strain information, and cannot accurately represent asymmetric strain. Compared with the traditional contact type strain measurement technology, the main principle of the non-contact type strain measurement technology is based on the digital image correlation technology, the deformation measurement is realized based on the machine vision principle, the contact with a test piece can be avoided, the whole process of stretching or compression can be detected, and the measurement test piece cannot be influenced. The inherent cause of surface deformation generated in the high-temperature service process of the material is the accumulation of invisible microscopic phenomena such as microcrack formation, expansion, particle slippage and the like in the material. The method has important significance for revealing the damage mechanism of the material in the high-temperature service process, establishing a material service performance evaluation system and guiding the development of novel high-quality high-temperature materials based on the acquisition of macroscopic deformation and microscopic damage process information in the material high-temperature environment service process.
Pan Bing and the like realize the measurement of material surface strain information under high temperature by adding an ultraviolet light source and matching with a narrow band-pass filter, the invention number is CN201710567402.3, but under the high temperature state, the change of the heated density of gases such as air and the like can cause serious influence on the light refractive index, thereby seriously influencing the image acquisition quality and the calculation accuracy. And the surface strain information of the material is separately collected and analyzed, so that the internal damage behavior cannot be obtained, and the internal mechanism of deformation and fracture of the material cannot be further understood and analyzed.
The damaged condition in the material can be analyzed by utilizing the X-ray tomography technology, but the X-ray tomography equipment has complex optical path system, expensive equipment price and high maintenance cost, the X-ray tomography technology is difficult to analyze the internal structure of the material in an extreme temperature environment of 1600 ℃ or above, and an effective technology for acquiring information of macroscopic deformation and microscopic damage process in the service process of the material in a high-temperature environment does not exist at present.
In summary, the apparatus for detecting the high-temperature service performance of the material in the prior art mainly has the following problems:
(1) the contact type strain measurement method comprises the following steps: the measurement range is limited, and generally only single-point or local strain can be measured; only average strain information can be obtained, and asymmetric strain cannot be accurately represented;
(2) and a non-contact strain measurement method: the change of the heated density of the gas affects the light refractive index, thereby affecting the image acquisition quality and the calculation precision; the X-ray tomography method has complex optical path system and high equipment and maintenance cost, and is difficult to analyze the internal structure of the material in an extreme temperature environment of 1600 ℃ or above;
(3) and the method lacks a multi-scale synchronous detection and acquisition device for invisible information such as internal microcrack formation, expansion, particle sliding and the like of the material in a high-temperature state and macroscopic strain distribution information of the surface of the material.
Disclosure of Invention
The invention aims to provide a device for detecting the high-temperature service performance of a material, which aims to solve the defects in the prior art, and the technical problem to be solved by the invention is realized by the following technical scheme.
The improvement of a device for detecting the high-temperature service performance of a material, which comprises:
the furnace body unit is used for providing an experimental space for detecting the detected material; the furnace body unit is provided with a visible window module, and the visible window module is used for providing a window for the optical detection unit to detect the detected material;
the heating and cooling unit is used for heating the detected material and cooling the furnace body unit; the cooling module of the heating and cooling unit is arranged on the outer side of the furnace body unit;
the load unit is used for providing vertical load for the detected material;
a vacuum unit for evacuating an inner space of the furnace body unit to a vacuum state;
the optical detection unit is used for detecting the change of the detected material in real time; the optical detection unit is arranged on the outer side of the furnace body unit and is matched with the height of the visible window module;
and the acoustic detection unit is used for acquiring the sound wave change in the detection process.
Preferably, the furnace body unit comprises a hearth module, and the hearth module comprises a furnace shell and a hearth brick which is attached to the inner wall of the furnace shell and is hollow inside; holes matched with the heating and cooling unit and the load unit are formed in the positions corresponding to the upper surfaces of the furnace shell and the hearth brick, and holes matched with the vacuum unit and the acoustic detection unit are formed in the positions corresponding to the side surfaces of the furnace shell and the hearth brick.
Preferably, the furnace shell is provided with a furnace door module, the furnace door module comprises a furnace door hinged with the furnace shell and a furnace door heat-resistant rubber ring arranged on the inner surface of the furnace door, the non-hinged end of the furnace door is provided with a furnace door buckle, and the furnace door buckle is matched with the bolt screw and the bolt nut to tightly press the furnace door on the furnace shell.
Preferably, the furnace door is provided with a visible window module, the visible window module comprises a visible window arranged on the furnace door, quartz glass positioned outside the furnace door and covering the visible window, and a heat-resistant rubber ring arranged between the furnace door and the quartz glass, and the quartz glass and the heat-resistant rubber ring are fixedly arranged on the outer side surface of the furnace door through flanges.
Preferably, the heating and cooling unit comprises a heating temperature measuring module, the heating temperature measuring module comprises a heating element arranged in the hearth module, a thermocouple arranged in the hearth module and externally sleeved with a corundum protective sleeve, and a heating controller connected with the heating element and the thermocouple, and the heating element penetrates through holes in the upper surfaces of the furnace shell and the hearth brick and extends into the hearth module.
Preferably, the cooling module comprises a water pump and a cooling water pipeline which is connected with the water pump and is spirally arranged on the periphery of the furnace shell.
Preferably, the load unit comprises a sample table positioned in the hearth module, a pressure bearing plate positioned above the sample table and used for pressing a detected material, a straight rod connected with the pressure bearing plate, a weight table connected with the upper end face of the straight rod, and a weight placed on the weight table, the straight rod penetrates through holes in the upper surfaces of the furnace shell and the hearth brick and extends out of the furnace shell, a sealing corrugated pipe is sleeved on a part of the straight rod extending out of the furnace shell, and the upper end face and the lower end face of the sealing corrugated pipe are respectively connected with the lower surface of the weight table and the upper surface of the furnace shell.
Preferably, the vacuum unit comprises a vacuum pump, an exhaust pipe connecting the vacuum pump and the hearth module, a vacuum valve and a pressure gauge arranged on the exhaust pipe, and the exhaust pipe is communicated with the inner space of the hearth module.
Preferably, the optical detection unit includes the fixed bolster, locates two industry cameras on the fixed bolster, locate on the fixed bolster and be located the initiative light source between two industry cameras, install band-pass filter lens and neutral gray mirror in proper order on the camera lens of industry camera, mutually perpendicular between two industry cameras.
Preferably, the acoustic detection unit comprises a high-temperature waveguide, an acoustic detection corrugated pipe sleeved on the high-temperature waveguide, and a multi-channel acoustic emission signal collector connected with the high-temperature waveguide through a signal transmission line, the high-temperature waveguide is a circular corundum pipe, the high-temperature waveguide penetrates through holes in the side surfaces of the furnace shell and the furnace brick and extends into the furnace module and abuts against the side surface of a detected material, one end of the acoustic detection corrugated pipe is installed on the outer surface of the furnace shell, and the other end of the acoustic detection corrugated pipe is connected with the high-temperature waveguide.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, through the optical detection unit, an active light source imaging technology is adopted, and a band-pass filter lens with the same central wavelength as that of the active light source is matched, so that the influence of thermal radiation on the acquisition contrast of the pattern marking image signal on the surface of the detected sample in a 1600-DEG C high-temperature service state can be effectively eliminated. The detection area is subjected to vacuum processing, a neutral gray scale mirror with low light flux is loaded at the lens to prolong the exposure time, and heat flow disturbance is averaged through a physical means, so that the interference of light refraction fluctuation caused by air density change in the optical path system on image signal acquisition is reduced. The monochromatic light source illumination and band-pass filter imaging technology based on the active light source can intuitively observe the change state of the detected material in the high-temperature service process in real time.
(2) According to the invention, the vacuum unit is arranged, so that a vacuum environment is provided for the sample, the influence of the change of the heated density of the gas on the light refractive index is reduced, and the image acquisition quality and the calculation precision are improved.
(3) By the acoustic detection unit and the high-temperature waveguide tube and the multi-channel acoustic emission signal collector, transient elastic waves generated by irreversible processes such as microcrack formation, expansion and particle sliding in the material in the high-temperature service process are extracted, and the real-time damage state in the material can be obtained based on acoustic wave analysis. Meanwhile, high-temperature service dynamic and transient surface image signals of the material are extracted in real time, and transient surface strain information of the material is synchronously analyzed by matching with a digital image correlation technology. And the multi-scale synchronous detection and analysis of invisible information such as internal microcrack formation, expansion, particle sliding and the like and material surface macroscopic strain distribution information under the high-temperature state of the material are realized.
(4) The equipment is constructed in a modularized mode, comprises six unit systems including a furnace body unit, a heating and cooling unit, a load unit, a vacuum unit, an optical detection unit and an acoustic detection unit, and is easy to replace consumables and low in replacement cost. The optical path system including the optical detection unit is simple, low in cost, and easy to maintain and repair.
(5) The invention replaces X-ray tomography equipment with the acoustic detection unit, thereby solving the problems of complex system and high equipment and maintenance cost of the X-ray tomography method in the prior art.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the furnace unit according to the present invention;
FIG. 3 is a schematic view showing the structure of the furnace shell according to the present invention;
FIG. 4 is a schematic structural view of a firebox brick of the present invention;
FIG. 5 is a schematic cross-sectional view of a furnace module according to the present invention;
FIG. 6 is a schematic view of a furnace door module according to the present invention;
FIG. 7 is an exploded view of the visible window module of the present invention;
FIG. 8 is a schematic sectional view of a visual window module according to the present invention;
FIG. 9 is a schematic view of a heating and cooling unit according to the present invention;
FIG. 10 is a schematic structural diagram of a heating and temperature measuring module according to the present invention;
FIG. 11 is a schematic view of the cooling module of the present invention;
FIG. 12 is a schematic view of the installation of the heating and cooling unit of the present invention;
FIG. 13 is a schematic view of the structure of the load cell of the present invention;
FIG. 14 is a schematic view of the installation of the load cell of the present invention;
FIG. 15 is a schematic view showing the structure of a vacuum unit according to the present invention;
FIG. 16 is a schematic view of an optical detection unit according to the present invention;
FIG. 17 is a schematic view of the installation of the optical detection unit in the present invention;
FIG. 18 is a schematic structural diagram of an acoustic detection unit according to the present invention;
FIG. 19 is a schematic view of the installation of the acoustic detection unit according to the present invention;
the reference numbers in the drawings are, in order: 100. a furnace body unit; 110. a hearth module 111, a furnace shell 112 and hearth bricks; 120. the oven door module comprises an oven door module 121, an oven door 122, an oven door heat-resistant rubber ring 123, hinges 124, an oven door buckle 125, a door bolt screw 126 and a door bolt nut; 130. a visible window module 131, a visible window 132, quartz glass 133, a heat-resistant rubber ring 134 and a flange; 200. a heating and cooling unit; 210. the heating temperature measuring module 211, the heating element 212, the thermocouple 213 and the heating controller; 220. the cooling module 221, the water pump 222, the cooling water pipeline 223, the cooling water inlet 224 and the cooling water outlet; 300. a load cell; 301. a sample table 302, a pressure bearing plate 303, a weight table 304, a weight 305, a sealing corrugated pipe 306 and a sample; 400. a vacuum unit; 401. a vacuum pump 402, an exhaust tube 403, a vacuum valve 404 and a pressure gauge; 500. an optical detection unit; 501. an industrial camera 502, an active light source 503, a band-pass filter lens 504, a neutral gray scale mirror 505 and a fixed support; 600. an acoustic detection unit; 601. the system comprises a high-temperature waveguide, 602, a multi-channel acoustic emission signal collector, 603, a signal transmission wire, 604 and an acoustic detection corrugated pipe.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1:
referring to fig. 1 to 19, a device for detecting high-temperature service performance of a material is improved by comprising:
a furnace body unit 100 for providing an experimental space for detecting a material to be detected; the furnace body unit 100 is provided with a visible window module 130, and the visible window module 130 is used for providing a window for the optical detection unit 500 to detect the detected material;
a heating and cooling unit 200 for heating the material to be detected and cooling the furnace body unit 100; the cooling module 220 of the heating and cooling unit 200 is arranged outside the furnace body unit 100;
a load cell 300 for providing a vertical load to the material to be tested;
a vacuum unit 400 for evacuating an inner space of the furnace body unit 100 to a vacuum state;
an optical detection unit 500 for detecting a change of the detected material in real time; the optical detection unit 500 is arranged at the outer side of the furnace body unit 100 and is matched with the height of the visible window module 130;
and the acoustic detection unit 600 is used for collecting the sound wave change in the detection process.
In this embodiment: the furnace body unit 100 is an apparatus main body of the present invention, and is configured to provide an experimental space for detecting a detected material; the heating and cooling unit 200 is used for heating the sample 306 of the detected material and cooling the furnace body unit 100; the load cell 300 is used for providing a certain vertical load for a sample 306 of the detected material; the vacuum unit 400 is used to provide a vacuum environment for the sample 306 of the material to be tested; the optical detection unit 500 is used for detecting the change of the sample 306 of the detected material in real time; the acoustic detection unit 600 is used for collecting acoustic wave changes in the detection process.
The detection device of the embodiment is a non-contact strain detection device, so that the limitation of a contact strain detection/measurement device in the prior art is overcome. This embodiment provides a vacuum environment for sample 306 through setting up vacuum unit 400 to reduce the influence that the gas is heated the light refractive index and produces of density change, and then improved image acquisition quality and calculation accuracy. In the embodiment, by arranging the acoustic detection unit 600, transient elastic waves generated by irreversible processes such as microcrack formation, expansion and particle sliding in the material in the high-temperature service process can be collected, and dynamic, transient and visual detection of the high-temperature service performance of the material is realized by matching with dynamic transient surface image signals of the high-temperature service of the material extracted by the optical detection unit 500. The acoustic detection unit 600 replaces an X-ray tomography device, so that the problems of complex system and high device and maintenance cost existing in the X-ray tomography method in the prior art are solved.
Further, referring to fig. 15, the vacuum unit 400 includes a vacuum pump 401, an exhaust pipe 402 connecting the vacuum pump 401 and the furnace module 110, a vacuum valve 403 disposed on the exhaust pipe 402, and a pressure gauge 404, wherein the exhaust pipe 402 is in communication with the inner space of the furnace module 110.
In this embodiment: the vacuum unit 400 is used for providing a vacuum environment for the furnace module 110, the vacuum pump 401 is used for providing power for the vacuum unit 400, the vacuum valve 403 is used for controlling the on-off of the vacuum unit 400, and the pressure gauge 404 is used for observing the air pressure in the furnace module 110.
Example 2:
on the basis of embodiment 1, referring to fig. 2 to 5, the furnace body unit 100 includes a furnace module 110, where the furnace module 110 includes a furnace shell 111 and furnace bricks 112 attached to an inner wall of the furnace shell 111 and having a hollow interior; the furnace shell 111 and the hearth brick 112 are provided with holes corresponding to the upper surfaces thereof and matched with the heating and cooling unit 200 and the load unit 300, and the furnace shell 111 and the hearth brick 112 are provided with holes corresponding to the lateral surfaces thereof and matched with the vacuum unit 400 and the acoustic detection unit 600.
Further, the furnace shell 111 is a square shell made of steel.
Further, the hearth brick 112 is made of corundum refractory material, and the inside of the hearth brick is a hollow square space.
In this embodiment: the hearth modules 110 and the furnace shell 111 are used for providing a supporting function for components of the whole detection device, and the hearth bricks 112 are used for protecting the furnace shell 111.
Further, referring to fig. 6, an oven door module 120 is disposed on the oven shell 111, the oven door module 120 includes an oven door 121 hinged to the oven shell 111, and an oven door heat-resistant rubber ring 122 disposed on an inner surface of the oven door 121, an oven door buckle 124 is disposed at a non-hinged end of the oven door 121, and the oven door buckle 124 cooperates with the door bolt rod 125 and the door bolt nut 126 to press the oven door 121 against the oven shell 111.
Further, the oven door 121 is a steel square door.
Further, one end of the oven door 121 is hinged to the oven shell 111 through a hinge 123, and an oven door buckle 124 is welded to the other end of the oven door 121, so that the oven door 121 can be opened and closed around the hinge 123.
Further, the hinge 123 is a steel hinge, one end of which is connected to the furnace shell 111, and the other end of which is connected to the furnace door 121.
Further, the oven door buckle 124 is made of steel and has a semicircular ring shape, and one end of the steel is welded on the oven door 121; the bolt screw 125 is a steel screw, one end of the bolt screw is connected to the furnace shell 111, and the other end of the bolt screw is matched with a bolt nut 126; the bolt nut 126 is a steel nut.
In this embodiment: the oven door module 120 and the oven door 121 are used for taking and placing samples 306 of detected materials, the oven door heat-resistant rubber ring 122 is used for sealing the oven door 121, the hinge 123 is used for opening and closing the oven door 121, and the oven door buckle 124, the door bolt screw 125 and the door bolt nut 126 are mutually matched for pressing the oven door 121 on the oven shell 111.
Further, referring to fig. 7 and 8, a visible window module 130 is disposed on the oven door 121, and the visible window module 130 includes a visible window 131 opened on the oven door 121, a quartz glass 132 located outside the oven door 121 and covering the visible window 131, and a heat-resistant rubber ring 133 disposed between the oven door 121 and the quartz glass 132, where the quartz glass 132 and the heat-resistant rubber ring 133 are fixed on an outer side surface of the oven door 121 by a flange 134.
Further, the visible window 131 is a rectangular through hole and is formed in the center of the oven door 121.
Further, the quartz glass 132 is a quartz rectangular glass slightly larger than the viewing window 131.
Further, the flange 134 is a steel rectangle, the center is a square through hole, the periphery is provided with a threaded hole, the flange is fixed on the oven door 121 through bolts, and the quartz glass 132 and the heat-resistant rubber ring 133 are fixedly arranged on the lands 121.
In this embodiment, the visual window module 130, the visual window 131 and the quartz glass 132 are used for providing a window for the optical detection unit 500 to detect the sample 306 of the detected material, the quartz glass 132 is used for blocking part of the heat radiation in the furnace module 110, the heat-resistant rubber ring 133 is used for sealing the visual window 131, and the flange 134 is used for fixing the quartz glass 132 and the heat-resistant rubber ring 133 on the furnace door 121.
Example 3:
on the basis of embodiment 2, referring to fig. 9, 10 and 12, the heating and cooling unit 200 comprises a heating temperature measuring module 210, wherein the heating temperature measuring module 210 comprises a heating element 211 installed in the hearth module 110, a thermocouple 212 installed in the hearth module 110 and externally sheathed with a corundum protective sleeve, and a heating controller 213 connected with the heating element 211 and the thermocouple 212, and the heating element 211 extends into the hearth module 110 through holes on the upper surfaces of the furnace shell 111 and the hearth bricks 112.
Further, the heating element 211 is a silicon-molybdenum rod or a silicon-molybdenum band or a tungsten rod or a tungsten wire, and the upper end of the heating element 211 is connected with a heating controller.
In this embodiment: the heating element 211 is used for increasing the heat energy to heat the sample 306 of the detected material; the thermocouple 212 is used to measure the temperature within the furnace module 110; the heating controller 213 is used to control the heating efficiency of the heating element 211 and adjust the heating efficiency of the heating element 211 according to the measurement signal of the thermocouple 212, so as to adjust the heating temperature in the furnace module 110, and further adjust the heated temperature of the sample 306 of the detected material.
Further, referring to fig. 9, 11 and 12, the cooling module 220 includes a water pump 221, and a cooling water pipe 222 connected to the water pump 221 and spirally installed on the outer periphery of the furnace shell 111.
Further, the cooling water pipe 222 is a spiral steel round pipe, and is spirally wound and welded on the outer side surface of the furnace shell 111.
Further, one end of the cooling water pipeline 222 is a cooling water inlet 223, and the other end is a cooling water outlet 224; the cooling water inlet 223 is connected with a cooling water source, and the cooling water outlet 224 is connected with the water inlet end of the water pump 221.
In this embodiment: the cooling module 220 is used for cooling the furnace shell 111 of the furnace module 110, the water pump 221 is used for providing power for the cooling module 220, and the cooling water pipeline 222 is used for providing a flow passage for cooling water.
Example 4:
on the basis of embodiment 2 or 3, referring to fig. 13 and 14, the load cell 300 includes a sample table 301 located in the furnace module 110, a pressure-bearing plate 302 located above the sample table 301 and configured to press against a detected material, a straight rod connected to the pressure-bearing plate 302, a weight table 303 connected to an upper end surface of the straight rod, and a weight 304 placed on the weight table 303, wherein the straight rod extends out of the furnace shell 111 through holes on the upper surfaces of the furnace shell 111 and the furnace bricks 112, a sealing bellows 305 is sleeved on a portion of the straight rod extending out of the furnace shell 111, and an upper end surface and a lower end surface of the sealing bellows 305 are respectively connected to a lower surface of the weight table 303 and an upper surface of the furnace shell 111.
Further, the sample table 301 is a square table made of silicon carbide ceramic, alumina ceramic or graphite, and is upwardly protruded on the lower surface of the hearth brick 112, and the height of the sample table 301 is not lower than the lower side of the visible window 131 of the visible window module 130; further, the sample stage 301 is slightly above the bottom of the viewing window 131.
Further, the pressure bearing plate 302 is a flat plate made of silicon carbide ceramic or aluminum oxide ceramic or graphite.
Further, the weight platform 303 is a steel flat plate, and the center of the lower surface is connected with the straight rod.
Further, the weight 304 is a standard weight, and the weight 304 with different mass can be replaced according to the experimental requirements.
In this embodiment: the load cell 300 is used for providing a vertical load for a sample 306 of a detected material, the sample table 301 is used for placing the sample 306 of the detected material, the bearing plate 302 and the straight rod are used for transmitting pressure from a weight 304, and the sealing corrugated pipe 305 provides a space for the straight rod to move up and down and ensures sealing of the hearth module 110.
Example 5:
in any of embodiments 1 to 4, referring to fig. 16 and 17, the optical detection unit 500 includes a fixing bracket 505, two industrial cameras 501 disposed on the fixing bracket 505, and an active light source 502 disposed on the fixing bracket 505 and located between the two industrial cameras 501, wherein a band-pass filter 503 and a neutral gray scale mirror 504 are sequentially mounted on a lens of the industrial camera 501, and the two industrial cameras 501 are perpendicular to each other.
Further, the light emitted by the active light source 502 is visible light with a wavelength of 350-450 nm.
Further, the cut-off range of the optical wave of the band-pass filter 503 is 10 to 30nm, and the central wavelength is the same as the wavelength of the light emitted by the active light source 502.
Further, the amount of light transmitted by the neutral gray-scale mirror 504 is 0.2 to 10%.
Further, the fixing bracket 505 is a triangular bracket and is placed right in front of the visible window 131.
Further, the height of the fixing bracket 505 is not lower than the lower side of the visual window 131 of the visual window module 130; further, the fixing bracket 505 is slightly higher than the lower side of the visual window 131.
In this embodiment: the optical detection unit 500 is used for detecting the change of the sample 306 of the detected material in real time, the industrial camera 501 is used for photographing the sample 306, the active light source 502 is used for providing a light source for photographing the sample 306, and the fixing support 505 is used for fixing the industrial camera 501 and the active light source 502.
Example 6:
on the basis of any of the foregoing embodiments, as shown in fig. 18 and 19, the acoustic detection unit 600 includes a high-temperature waveguide 601, an acoustic detection corrugated tube 604 sleeved on the high-temperature waveguide 601, and a multi-channel acoustic emission signal collector 602 connected to the high-temperature waveguide 601 through a signal conducting wire 603, where the high-temperature waveguide 601 is a circular corundum tube, the high-temperature waveguide 601 passes through holes on the side surfaces of the furnace shell 111 and the furnace brick 112 and extends into the furnace module 110 and abuts against the side surface of the detected material, one end of the acoustic detection corrugated tube 604 is installed on the outer surface of the furnace shell 111, and the other end is connected to the high-temperature waveguide 601.
Further, the multi-channel acoustic emission signal collector 602 is an acoustic signal collector.
In this embodiment: the acoustic detection unit 600 is used for collecting sound wave changes in the detection process, the high-temperature waveguide 601 is used for conducting the sound wave changes in the hearth module 110, the multi-channel acoustic emission signal collector 602 is used for collecting sound wave signals, the signal conducting wire 603 is used for conducting the sound wave signals, and the acoustic detection corrugated pipe 604 is used for fixing the high-temperature waveguide 601 and enabling the high-temperature waveguide 601 to move within a certain range.
It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than described of illustrated herein.
Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.
For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be oriented in other different ways, such as by rotating it 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.
In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like symbols typically identify like components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a material high temperature service performance check out test set which characterized in that includes:
the furnace body unit (100) is used for providing an experimental space for detecting the detected material; the furnace body unit (100) is provided with a visible window module (130), and the visible window module (130) is used for providing a window for the optical detection unit (500) to detect the detected material;
a heating and cooling unit (200) for heating the material to be detected and cooling the furnace body unit (100); the cooling module (220) of the heating and cooling unit (200) is arranged at the outer side of the furnace body unit (100);
the load cell (300) is used for providing vertical load for the detected material;
a vacuum unit (400) for evacuating the internal space of the furnace body unit (100) to a vacuum state;
an optical detection unit (500) for detecting a change in the detected material in real time; the optical detection unit (500) is arranged on the outer side of the furnace body unit (100) and is matched with the height of the visible window module (130);
the acoustic detection unit (600) is used for collecting the sound wave change in the detection process; the furnace body unit (100) comprises a hearth module (110), wherein the hearth module (110) comprises a furnace shell (111) and hearth bricks (112) which are attached to the inner wall of the furnace shell (111) and are hollow inside; holes matched with the heating and cooling unit (200) and the load unit (300) are formed in the positions corresponding to the upper surfaces of the furnace shell (111) and the hearth brick (112), and holes matched with the vacuum unit (400) and the acoustic detection unit (600) are formed in the positions corresponding to the side surfaces of the furnace shell (111) and the hearth brick (112);
the heating and cooling unit (200) comprises a heating temperature measuring module (210), the heating temperature measuring module (210) comprises a heating element (211) arranged in the hearth module (110), a thermocouple (212) which is arranged in the hearth module (110) and is externally sleeved with a corundum protective sleeve, and a heating controller (213) connected with the heating element (211) and the thermocouple (212), and the heating element (211) penetrates through holes in the upper surfaces of the furnace shell (111) and the hearth brick (112) and extends into the hearth module (110);
the cooling module (220) comprises a water pump (221) and a cooling water pipeline (222) which is connected with the water pump (221) and is spirally arranged on the periphery of the furnace shell (111);
the load unit (300) comprises a sample platform (301) positioned in the hearth module (110), a bearing plate (302) positioned above the sample platform (301) and used for pressing a detected material, a straight rod connected with the bearing plate (302), a weight platform (303) connected with the upper end face of the straight rod, and a weight (304) placed on the weight platform (303), wherein the straight rod penetrates through holes in the upper surfaces of the furnace shell (111) and the hearth bricks (112) and extends out of the furnace shell (111), a sealing corrugated pipe (305) is sleeved on the part of the straight rod extending out of the furnace shell (111), and the upper end face and the lower end face of the sealing corrugated pipe (305) are respectively connected with the lower surface of the weight platform (303) and the upper surface of the furnace shell (111);
the optical detection unit (500) comprises a fixing support (505), two industrial cameras (501) arranged on the fixing support (505), and an active light source (502) arranged on the fixing support (505) and located between the two industrial cameras (501), wherein a band-pass filter lens (503) and a neutral gray scale mirror (504) are sequentially mounted on a lens of each industrial camera (501), and the two industrial cameras (501) are perpendicular to each other;
acoustic detection unit (600) include high temperature wave guide pipe (601), acoustic detection bellows (604), the multichannel acoustic emission signal collector (602) that the cover located on high temperature wave guide pipe (601) links to each other with high temperature wave guide pipe (601) through signal conduction line (603), high temperature wave guide pipe (601) are the corundum pipe, high temperature wave guide pipe (601) pass stove outer covering (111) and furnace brick (112) side surface the hole stretch into furnace module (110) inside and with the side looks butt of detected material, the one end of acoustic detection bellows (604) is installed on the surface of stove outer covering (111), the other end is connected with high temperature wave guide pipe (601).
2. The equipment for detecting the high-temperature service performance of the material as claimed in claim 1, wherein: be equipped with furnace gate module (120) on stove outer covering (111), furnace gate module (120) include with stove outer covering (111) articulated furnace gate (121), locate furnace gate heat-resisting rubber circle (122) on furnace gate (121) internal surface, the non-articulated one end of furnace gate (121) is equipped with furnace gate buckle (124), and furnace gate buckle (124) and keeper screw rod (125), keeper nut (126) cooperate in order to compress tightly furnace gate (121) on stove outer covering (111).
3. The equipment for detecting the high-temperature service performance of the material as claimed in claim 2, wherein: the oven door (121) is provided with a visible window module (130), the visible window module (130) comprises a visible window (131) arranged on the oven door (121), quartz glass (132) located on the outer side of the oven door (121) and covering the visible window (131), and a heat-resistant rubber ring (133) arranged between the oven door (121) and the quartz glass (132), and the quartz glass (132) and the heat-resistant rubber ring (133) are fixedly arranged on the outer side surface of the oven door (121) through flanges (134).
4. The equipment for detecting the high-temperature service performance of the material as claimed in claim 1, wherein: the vacuum unit (400) comprises a vacuum pump (401), an exhaust pipe (402) connected with the vacuum pump (401) and the hearth module (110), a vacuum valve (403) arranged on the exhaust pipe (402) and a pressure gauge (404), wherein the exhaust pipe (402) is communicated with the inner space of the hearth module (110).
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| CN202110241900.5A CN113029807B (en) | 2021-03-04 | 2021-03-04 | Material high temperature service performance detection equipment |
| PCT/CN2021/082420 WO2022183543A1 (en) | 2021-03-04 | 2021-03-23 | Detection device and detection method for high-temperature service performance of material |
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| CN202110241900.5A CN113029807B (en) | 2021-03-04 | 2021-03-04 | Material high temperature service performance detection equipment |
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| CN114131962B (en) * | 2021-11-12 | 2022-12-27 | 南京航空航天大学 | Device and method for measuring high-temperature ejection strength and damage of pin structure made of composite material |
| CN113865512A (en) * | 2021-12-02 | 2021-12-31 | 北京中天星控科技开发有限公司 | Contour scanning and measuring device and method |
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