CN113029806B - Visual detection equipment for high-temperature performance of material with external magnetic field - Google Patents

Abstract

The invention relates to a visual detection device for high-temperature performance of a material with an external magnetic field, which comprises: the furnace body unit is used for providing a detected space for 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 magnetic supply unit is used for providing a magnetic field environment for the detected material; the vacuum unit is used for providing a vacuum environment for the inner space of the furnace body unit; 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. The invention can intuitively observe the change state of the detected material in the high-temperature service process under the environment of an external magnetic field in real time, and has high image acquisition quality.

Description

A visual inspection equipment for high temperature properties of materials with an external magnetic field

technical field

The invention relates to the technical field of material service performance detection, in particular to a visual detection device for material high temperature performance with an external magnetic field.

Background technique

The electromagnetic process of materials is an emerging frontier interdisciplinary subject and research direction, which is of great significance to the preparation of metal smelting, non-metallic materials and new materials. Electromagnetic fields exist widely in the field of metallurgy. With the in-depth development of electromagnetic metallurgical theoretical research and basic research work, the application of electromagnetic fields in the field of metallurgy is becoming more and more mature, providing an important way for smelting new steel grades and improving steel quality. Refractory materials play a vital role in the efficient and safe production of thermal equipment such as iron and steel smelting and the quality of products. They are essential basic materials in high-temperature industrial production such as metallurgy, electric power, petrochemical and aerospace industries. The damage of the high temperature furnace has a great impact on the safe and efficient operation of the high temperature furnace and the quality of steel production. In the process of iron and steel smelting, the external electromagnetic field will affect the motion state of molten steel and the properties of slag, which will ultimately affect the properties of steel and the slag corrosion behavior of refractory materials.

Existing strain measurement methods are generally divided into contact strain measurement methods and non-contact strain measurement methods. The contact strain measurement method is to characterize the strain of the material according to the displacement of the probe. On the one hand, the measurement range is limited, and usually only a single point or local strain can be measured; on the other hand, the contact strain measurement can only obtain the average strain information, cannot accurately characterize asymmetric strain. Compared with the traditional contact strain measurement technology, the main principle of the non-contact strain measurement technology is based on digital image correlation technology, and the deformation measurement is realized based on the principle of machine vision. It will not have any influence on the measurement specimen, but the change of the heat density of the gas in the test environment will affect the light refractive index, thus affecting the image acquisition quality and calculation accuracy. And at present, there is no effective means to realize the visual detection of high temperature performance of materials in an external magnetic field environment at 1600 °C.

SUMMARY OF THE INVENTION

The present invention is intended to provide a visual detection device for high temperature performance of materials with an external magnetic field to solve the deficiencies in the prior art. The technical problem to be solved by the present invention is achieved through the following technical solutions.

A visual inspection equipment for high temperature properties of materials with an external magnetic field, including:

The furnace body unit is used to provide a space to be tested for the tested material; the furnace body unit is provided with a visual window module, and the visual window module is used to provide a window for the optical detection unit to detect the tested material;

a heating and cooling unit for heating the tested material and cooling the furnace body unit; the cooling module of the heating and cooling unit is arranged outside the furnace body unit;

The magnetic supply unit is used to provide a magnetic field environment for the tested material;

The vacuum unit is used to provide a vacuum environment for the inner space of the furnace unit;

The optical detection unit is used for real-time detection of the change of the material to be detected; the optical detection unit is arranged outside the furnace body unit and matches the height of the visible window module.

Preferably, the furnace body unit includes a furnace hearth module, and the furnace hearth module includes a furnace shell, a furnace hearth brick that is attached to the inner wall of the furnace shell and is hollow inside; Holes matched with the heating and cooling units are provided with holes matched with the heating and cooling units, and holes matched with the vacuum unit are provided at corresponding positions on the side surfaces of the furnace shell and the furnace brick.

Preferably, a furnace door module is provided on the furnace shell, and the furnace door module includes 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. One end is provided with a furnace door buckle, and the furnace door buckle is matched with the door bolt screw and the door bolt nut to press the furnace door on the furnace shell.

Preferably, a visible window module is provided on the furnace door, and the visible window module includes a visible window opened on the furnace door, a quartz glass located outside the furnace door and covering the visible window, a visible window located on the furnace door and the visible window. A heat-resistant rubber ring between the quartz glass, the quartz glass and the heat-resistant rubber ring are fixed on the outer surface of the furnace door through a flange.

Preferably, the heating and cooling unit includes a heating and temperature measuring module, and the heating and temperature measuring module includes a heating element installed in the furnace module, a thermocouple installed in the furnace module and covered with a corundum protective cover, and the heating element and the thermoelectric Coupled to the connected heating controller, the heating element protrudes into the furnace module through the holes in the furnace shell and the upper surface of the furnace brick.

Preferably, the cooling module includes a water pump, a cooling water pipeline connected to the water pump and screwed on the periphery of the furnace shell.

Preferably, the magnetic supply unit includes a power supply located outside the furnace body unit, a coil connected to the power supply, and a sample stage located in the furnace module; the furnace brick is provided with an empty slot for the magnetic coil, and the coil is placed in the furnace block. In the empty slot of the magnetic coil, the furnace brick and the side surface of the furnace shell are provided with through-holes, and both ends of the coil are connected to the power source through the through-holes.

Preferably, the sample stage is a silicon carbide ceramic or alumina ceramic or graphite square stage, the coil is a high temperature resistant coil made of mica-coated pure nickel core, and the power supply is a DC power supply or an AC power supply.

Preferably, the vacuum unit includes a vacuum pump, a suction pipe connecting the vacuum pump and the furnace module, a vacuum valve and a pressure gauge arranged on the suction pipe, and the suction pipe communicates with the inner space of the furnace module.

Preferably, the optical detection unit includes a fixing bracket, two industrial cameras arranged on the fixing bracket, and an active light source arranged on the fixing bracket and located between the two industrial cameras, and the lenses of the industrial cameras are sequentially installed with belts The two industrial cameras are perpendicular to each other through filter lenses and neutral grayscale lenses.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention adopts the active light source imaging technology through the optical detection unit, and cooperates with the band-pass filter lens with the same central wavelength as the active light source, which can effectively eliminate the thermal radiation under the high temperature service state of 1600 ° C on the surface pattern marking image of the tested sample. The effect of signal acquisition contrast. The detection area is vacuum treated, and a low-pass light neutral gray mirror is loaded at the lens to prolong the exposure time, and the heat flow disturbance is averaged through physical means, which helps to reduce the light refraction caused by the air density change in the optical path system. The disturbance of fluctuations in image signal acquisition. The monochromatic light source illumination and band-pass filter imaging technology based on the active light source can visually observe the changing state of the tested material during high-temperature service in real time.

(2) The present invention provides a vacuum environment for the sample by setting a vacuum unit, thereby reducing the influence of the heat density change of the gas on the optical refractive index, thereby improving the image acquisition quality and calculation accuracy.

(3) The present invention can provide a static magnetic field and an alternating magnetic field by setting a magnetic supply system, so as to obtain the surface strain information during the service process of the material in different magnetic field environments, so as to know the service performance parameters of the material in the high temperature electromagnetic environment; the magnetic supply coil The built-in and high-temperature furnace minimizes the magnetic loss of the electromagnetic coil, and can ensure that the magnetic field lines generated by the electromagnetic coil are uniform and controllable; the electromagnetic coil is made of mica-clad pure nickel core high-temperature coils, which can ensure that the equipment can achieve a high temperature of up to 1600 °C Stable and long-term loading in strong electromagnetic fields in the environment.

(4) The equipment of the present invention adopts modular construction, including a furnace body unit, a heating and cooling unit, a magnetic supply unit, a vacuum unit and an optical detection unit, a total of five unit systems, and the consumables are easy to replace and the replacement cost is low. The optical path system including the optical detection unit is simple, low cost and easy to maintain and repair.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural representation of the furnace body unit in the present invention;

Fig. 3 is the structural representation of the furnace shell in the present invention;

Fig. 4 is the structural representation of hearth brick in the present invention;

Fig. 5 is the sectional structure schematic diagram of the furnace module in the present invention;

6 is a schematic structural diagram of a furnace door module in the present invention;

Fig. 7 is the exploded schematic diagram of the visible window module in the present invention;

Fig. 8 is the sectional structure schematic diagram of the visible window module in the present invention;

FIG. 9 is a schematic structural diagram of a heating and cooling unit in the present invention;

10 is a schematic structural diagram of a heating temperature measurement module in the present invention;

11 is a schematic structural diagram of a cooling module in the present invention;

Fig. 12 is the installation schematic diagram of the heating and cooling unit in the present invention;

13 is a schematic structural diagram of a magnetic supply unit in the present invention;

Fig. 14 is the installation schematic diagram of the magnetic supply unit in the present invention;

15 is a schematic cross-sectional structure diagram of a magnetic supply unit in the present invention;

Fig. 16 is the structural schematic diagram of the vacuum unit in the present invention;

17 is a schematic structural diagram of an optical detection unit in the present invention;

18 is a schematic diagram of the installation of the optical detection unit in the present invention;

The reference signs in the drawings are: 100, furnace body unit; 110, furnace module, 111, furnace shell, 112, furnace brick, 113, empty slot for magnetic coil; 120, furnace door module, 121, furnace door, 122, heat-resistant rubber ring for furnace door, 123, loose-leaf, 124, door buckle, 125, door bolt screw, 126, door bolt nut; 130, visual window module, 131, visual window, 132, quartz glass, 133, heat-resistant rubber ring, 134, flange; 200, heating and cooling unit; 210, heating temperature measurement module, 211, heating element, 212, thermocouple, 213, heating controller; 220, cooling module, 221, water pump, 222, cooling water pipeline, 223, cooling water inlet, 224, cooling water outlet; 300, magnetic supply unit; 301, coil, 302, wire hole, 303, power supply, 304, sample stage, 305, sample ;400, vacuum unit; 401, vacuum pump, 402, exhaust pipe, 403, vacuum valve, 404, pressure gauge; 500, optical detection unit; 501, industrial camera, 502, active light source, 503, bandpass filter lens, 504 , Neutral grayscale mirror, 505, fixed bracket.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Example 1:

Referring to FIGS. 1 to 18, a visual inspection device for high temperature performance of materials with an external magnetic field is improved, including:

The furnace body unit 100 is used to provide a space to be tested for the material to be tested; the furnace body unit 100 is provided with a visual window module 130, and the visual window module 130 is used to provide the optical detection unit 500 to detect the material to be tested. The window in which the detection is performed;

The heating and cooling unit 200 is used for heating the material to be tested 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;

The magnetic supply unit 300 is used to provide a magnetic field environment for the detected material;

The vacuum unit 400 is used to provide a vacuum environment for the inner space of the furnace body unit 100;

The optical detection unit 500 is used to detect the change of the detected material in real time; the optical detection unit 500 is arranged on the outer side of the furnace body unit 100 and matches the height of the visible window module 130 .

In this embodiment, the furnace unit 100 is the main body of the apparatus of the present invention, and is used to provide an experimental space for testing the material to be tested; the heating and cooling unit 200 is used to heat the sample 305 of the material to be tested and The furnace body unit 100 is cooled; the magnetic supply unit 300 is used to provide a magnetic field environment for the sample 305 of the tested material; the vacuum unit 400 is used to provide a vacuum environment for the sample 305 of the tested material; the optical detection unit 500 is used to detect changes in the sample 305 of the tested material in real time.

The detection device of this embodiment is a non-contact strain detection device, thereby overcoming the limitation of the contact type strain detection/measurement device in the prior art. In this embodiment, the vacuum unit 400 is provided to provide a vacuum environment for the sample 305, thereby reducing the influence of the heat density change of the gas on the optical refractive index, thereby improving the image acquisition quality and calculation accuracy. In this embodiment, by setting the magnetic supply system 300, the service performance parameters of the material under the high temperature electromagnetic environment can be obtained.

Further, as shown in FIG. 16 , the vacuum unit 400 includes a vacuum pump 401, a suction pipe 402 connecting the vacuum pump 401 and the furnace module 110, a vacuum valve 403 and a pressure gauge 404 arranged on the suction pipe 402. The suction pipe 402 It communicates with the inner space of the furnace module 110 .

In this embodiment, the vacuum unit 400 is used to provide a vacuum environment for the furnace module 110, the vacuum pump 401 is used to provide power for the vacuum unit 400, the vacuum valve 403 is a switch for controlling the vacuum unit 400, the pressure gauge 404 is used to observe the air pressure in the furnace module 110 .

Example 2:

On the basis of Embodiment 1, as shown in FIGS. 2 to 5 , the furnace body unit 100 includes a furnace hearth module 110 , and the furnace hearth module 110 includes a furnace shell 111 . Furnace bricks 112; holes matched with the heating and cooling unit 200 are provided at corresponding positions on the upper surfaces of the furnace shell 111 and the furnace bricks 112, and the sides of the furnace shell 111 and the furnace bricks 112 correspond to All positions are provided with holes for matching with the vacuum unit 400 .

Further, the furnace shell 111 is a steel square shell.

Further, the furnace brick 112 is made of corundum refractory material, and the interior is a hollow square space.

In this embodiment, the furnace module 110 and the furnace shell 111 are used to provide support for the components of the entire testing equipment, and the furnace bricks 112 are used to protect the furnace shell 111 .

Further, as shown in FIG. 6 , the furnace shell 111 is provided with a furnace door module 120 , and the furnace door module 120 includes a furnace door 121 hinged with the furnace shell 111 , and a furnace door disposed on the inner surface of the furnace door 121 . Heat-resistant rubber ring 122, the furnace door 121 is provided with a furnace door buckle 124 at the non-hinged end, and the furnace door buckle 124 cooperates with the door bolt screw 125 and the door bolt nut 126 to press the furnace door 121 to the furnace shell 111 on.

Further, the furnace door 121 is a steel square door.

Further, one end of the furnace door 121 is hinged with the furnace shell 111 through the loose leaf 123 , and the other end is welded with a furnace door buckle 124 , and the furnace door 121 can be opened and closed around the loose leaf 123 .

Further, the leaflet 123 is a steel leaflet, one end is connected to the furnace shell 111 and the other end is connected to the furnace door 121 .

Further, the furnace door buckle 124 is a steel semi-circular ring, and one end is welded on the furnace door 121; the door bolt screw 125 is a steel screw, one end is connected to the furnace shell 111, and the other end is connected to the door bolt nut 126. Matching; the door bolt nut 126 is a steel nut.

In this embodiment, the furnace door module 120 and the furnace door 121 are used to take and place the sample 305 of the tested material, the furnace door heat-resistant rubber ring 122 is used to seal the furnace door 121, and the loose leaf 123 is used for the furnace door When the door 121 is opened and closed, the furnace door buckle 124 , the door bolt screw 125 and the door bolt nut 126 cooperate with each other to press the furnace door 121 on the furnace shell 111 .

Further, as shown in FIGS. 7 and 8 , the furnace door 121 is provided with a visual window module 130 , and the visual window module 130 includes a visual window 131 opened on the furnace door 121 and located outside the furnace door 121 And cover the quartz glass 132 of the visible window 131, and the heat-resistant rubber ring 133 arranged between the furnace door 121 and the quartz glass 132, the quartz glass 132 and the heat-resistant rubber ring 133 are fixed on the furnace door 121 through the flange 134. on the outside.

Further, the viewing window 131 is a rectangular through hole opened in the center of the furnace door 121 .

Further, the quartz glass 132 is a piece of quartz rectangular glass slightly larger than the visible window 131 .

Further, the flange 134 is a steel rectangle, the center is a square through hole, and the periphery is provided with threaded holes, which are fixed on the furnace door 121 by bolts, and the quartz glass 132 and the heat-resistant rubber ring 133 are fixed on the furnace door. 121 on.

In this embodiment, the visible window module 130, the visible window 131 and the quartz glass 132 are used to provide a window for the optical detection unit 500 to detect the sample 305 of the material to be detected, and the quartz glass 132 is used to block the furnace chamber Part of the heat radiation in the module 110 , the heat-resistant rubber ring 133 is used to seal the visible window 131 , and the flange 134 is used to fix the quartz glass 132 and the heat-resistant rubber ring 133 on the furnace door 121 .

Example 3:

On the basis of Embodiment 2, as shown in FIGS. 9 , 10 and 12 , the heating and cooling unit 200 includes a heating temperature measurement module 210 , and the heating temperature measurement module 210 includes a heating element 211 installed in the furnace module 110 , A thermocouple 212 installed in the furnace module 110 and covered with a corundum protective sheath, a heating controller 213 connected to the heating element 211 and the thermocouple 212, the heating element 211 passing through the furnace shell 111 and the hole on the upper surface of the furnace brick 112 Protruding into the furnace module 110 .

Further, the heating element 211 is a silicon molybdenum rod or a silicon molybdenum ribbon or a tungsten rod or a tungsten wire, and the upper end of the heating element 211 is connected to a heating controller.

In this embodiment: the heating element 211 is used to increase thermal energy and heat the sample 305 of the material to be tested; the thermocouple 212 is used to measure the temperature in the furnace module 110; the heating controller 213 is used to control 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 then adjust the heated temperature of the sample 305 of the tested material.

Further, as shown in FIGS. 9 , 11 and 12 , the cooling module 220 includes a water pump 221 , and a cooling water pipeline 222 connected to the water pump 221 and screwed on the periphery of the furnace shell 111 .

Further, the cooling water pipeline 222 is a spiral steel round tube, which is spirally wound and welded on the outer 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 to the cooling water source, and the cooling water outlet 224 is connected to the water inlet of the water pump 221. end connected.

In this embodiment, the cooling module 220 is used to cool the furnace shell 111 of the furnace chamber module 110, the water pump 221 is used to provide power for the cooling module 220, and the cooling water pipeline 222 is used to provide a flow path for cooling water.

Example 4:

On the basis of Embodiment 2 or 3, as shown in FIGS. 13 , 14 and 15 , the magnetic supply unit 300 includes a power supply 303 located outside the furnace body unit 100 , a coil 301 connected to the power supply 303 , and located in the furnace module 110 . The sample stand 304; the interior of the furnace brick 112 is provided with a magnetic coil slot 113, the coil 301 is placed in the magnetic coil slot 113, the furnace brick 112 and the side surface of the furnace shell 111 Both ends of the coil 301 are provided with through-holes 302 , and both ends of the coil 301 are connected to the power source 303 through the through-holes 302 .

Further, the sample table 304 is a silicon carbide ceramic or alumina ceramic or graphite square table, and the height of the sample table 304 is not lower than the lower side of the visual window 131 of the visual window module 130; further , the sample stage 304 is slightly higher than the lower side of the viewing window 131 .

Further, the number of the magnetic coil empty slots 113 is two, and they are located above and below the sample stage 304 respectively.

Further, the coil 301 is a high temperature resistant coil made of mica-coated pure nickel core, the coil 301 is wound into a multi-turn spiral shape, the coil 301 is wound in the same direction, and is coaxially placed in the space of the magnetic coil. in the groove 113.

Further, the power supply 303 is a DC power supply or an AC power supply, and the positive and negative electrodes of the power supply 303 are connected to the coil 301 placed in the magnetic coil slot 113 to supply power to the coil 301, so that the coil is placed in the furnace. The middle of the module 110 generates an induced magnetic field with a certain strength and direction.

In this embodiment, the magnetic supply unit 300 is used to provide the sample 305 of the tested material with a certain intensity of electromagnetic field, the sample stage 304 is used to place the sample 305 of the tested material, and the power supply 303 can provide a static magnetic field and alternating magnetic field, so as to obtain the surface strain information of the sample 305 during service in different magnetic field environments, so as to obtain the service performance parameters of the sample 305 in the high-temperature electromagnetic environment.

Example 5:

On the basis of any one of Embodiments 1-4, referring to FIGS. 17 and 18 , the optical detection unit 500 includes a fixing bracket 505 , two industrial cameras 501 arranged on the fixing bracket 505 , and two industrial cameras 501 arranged on the fixing bracket 505 And the active light source 502 is located between the two industrial cameras 501 . The lenses of the industrial cameras 501 are sequentially installed with a band-pass filter lens 503 and a neutral grayscale mirror 504 , 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 light wave of the band-pass filter lens 503 is 10-30 nm, and the central wavelength is the same as the wavelength of the light emitted by the active light source 502 .

Further, the light transmission amount of the neutral grayscale mirror 504 is 0.2-10%.

Further, the fixing bracket 505 is a triangular bracket and is placed in front of the viewing window 131 .

Further, the height of the fixing bracket 505 is not lower than the lower side of the visible window 131 of the visible window module 130 ; further, the fixing bracket 505 is slightly higher than the lower side of the visible window 131 .

In this embodiment, the optical detection unit 500 is used for real-time detection of changes in the sample 306 of the material to be detected, the industrial camera 501 is used for taking pictures of the sample 306 , and the active light source 502 is used for A light source is provided for taking pictures, and the fixing bracket 505 is used for fixing the industrial camera 501 and the active light source 502 .

It should be noted that the above detailed description is exemplary and intended to provide further explanation for the present application. Unless otherwise defined, 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 should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments described in accordance with the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly dictates otherwise. In addition, it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units expressly listed, but may include steps or units not expressly listed or for such process, method, product or Other steps or units inherent to the device.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that 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 the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be oriented in other ways, such as rotated 90 degrees or at other orientations, and the spatially relative descriptions used herein interpreted accordingly.

In the above detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar 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 herein.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. The visual detection equipment of the high temperature performance of the material of an applied magnetic field is characterized by comprising:

a furnace body unit (100) for providing a detected space for a 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; 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) 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) are formed in the positions corresponding to the side surfaces of the furnace shell (111) and the hearth brick (112);

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 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 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);

a magnetic supply unit (300) for providing a magnetic field environment for the detected material;

a vacuum unit (400) for providing a vacuum environment for the inner space of the furnace body unit (100);

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 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 arranged on a lens of each industrial camera (501), and the two industrial cameras (501) are perpendicular to each other.

2. A testing device according to claim 1, characterized in that: the oven door structure is characterized in that an oven door module (120) is arranged on the oven shell (111), the oven door module (120) comprises an oven door (121) hinged to the oven shell (111) and an oven door heat-resistant rubber ring (122) arranged on the inner surface of the oven door (121), an oven door buckle (124) is arranged at the non-hinged end of the oven door (121), and the oven door buckle (124) is matched with the door bolt screw rod (125) and the door bolt nut (126) to tightly press the oven door (121) on the oven shell (111).

3. A testing device according to claim 2, characterized in that: 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. A testing device according to claim 1, characterized in that: the magnetic supply unit (300) comprises a power supply (303) positioned outside the furnace body unit (100), a coil (301) connected with the power supply (303), and a sample table (304) positioned in the hearth module (110); the magnetic coil placing hollow groove (113) is formed in the hearth brick (112), the coil (301) is placed in the magnetic coil placing hollow groove (113), through-wire holes (302) are formed in the side faces of the hearth brick (112) and the furnace shell (111), and two ends of the coil (301) penetrate through the through-wire holes (302) to be connected with the power supply (303).

5. A testing device according to claim 4, characterized in that: the sample table (304) is a square table made of silicon carbide ceramic, aluminum oxide ceramic or graphite, the coil (301) is a mica-coated pure nickel core high-temperature resistant coil, and the power supply (303) is a direct current power supply or an alternating current power supply.

6. A testing device according to claim 1, characterized in that: 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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