A device for detecting performance of thermal barrier coating on workpiece

Abstract

The present invention discloses a device for detecting the performance of a thermal barrier coating of a workpiece, and relates to the technical field of thermal barrier coating detection. The device comprises a microscope base, a corrosion regulating member is installed on the microscope base, and the interior of the microscope base is used for introducing a corrosion liquid; an isolation member is installed on the microscope base; the isolation member is used to fit a turbine blade; a microscope adapter is installed on the microscope base; the microscope adapter is used to dock with a microscope lens; a detection isolation member is installed at the bottom of the microscope adapter; and negative pressure suction is used for testing, so that staff can fully understand the adhesion performance of the thermal barrier coating and prevent the thermal barrier coating that has only peeled off but not cracked from being discovered. The device solves the problem that the current thermal barrier coating performance detection device is not convenient for detecting the adhesion of the coating after corrosion by negative pressure during microscope detection, and a small amount of peeled coating is not easy to be discovered.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal barrier coating detection, in particular to a device for detecting the performance of a workpiece thermal barrier coating. Background Art

[0002] A thermal barrier coating (TBC) is a ceramic coating deposited on the surface of a high-temperature resistant metal or superalloy. It acts as a thermal insulator for the substrate material, reducing the substrate temperature. In actual turbine blade manufacturing, because turbine blades operate under extreme conditions, TBCs are required to extend turbine life. Currently, TB blade coating quality testing requires not only extreme heating tests but also corrosion resistance testing. Microscopic observation of surface corrosion is performed using a microscope. Typically, turbine blades are manually immersed in corrosion and then observed under a microscope. Current TBC performance testing equipment often lacks TBC at the root of turbine blades, making it difficult to protect the root and prone to excessive corrosion, resulting in the scrapping of the turbine blade substrate. Microscopic testing is also difficult to detect coating adhesion after corrosion using negative pressure, making it difficult to detect delaminated coatings, which can lead to missed inspections. Furthermore, traditional direct scratching testing, due to the thin coating thickness, can easily damage the turbine blade, resulting in scratches that require repair. Deep scratches can render the turbine blade unusable.

[0003] To this end, we propose a device for detecting the performance of thermal barrier coatings on workpieces. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for detecting the performance of thermal barrier coatings on workpieces, so as to solve the problem raised in the above background technology that the current thermal barrier coating performance detection device is not convenient for detecting the adhesion of the coating after corrosion by negative pressure during microscope detection, and a small part of the peeled coating is not easy to be found.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for detecting the performance of a thermal barrier coating on a workpiece, comprising a microscope base, a corrosion adjustment part being installed on the microscope base, and the interior of the microscope base being used for introducing a corrosive liquid; an isolation part being installed on the microscope base; the isolation part being used to fit a turbine blade; a microscope adapter being installed on the microscope base; the microscope adapter being used to dock with a microscope lens; a detection isolation part being installed at the bottom of the microscope adapter; an angle adapter being installed at the bottom of the detection isolation part; the angle adapter being used to fit the thermal barrier coating of a turbine blade; the angle adapter being used for negative pressure testing the adhesion of the coating; a coating protection stripping part being installed on the angle adapter; the coating protection stripping part being used to fit the thermal barrier coating; the microscope base comprising: a microscope base plate and a mounting threaded barrel, a mounting threaded barrel being installed on the microscope base plate, and a thread being provided on the upper portion of the mounting threaded barrel; the microscope base plate being used to be placed on a microscope stage.

[0006] Preferably, the coating protection stripping member also includes: a downward pressure spring and a stripping scraper, the downward pressure spring is sleeved on the sliding column; one end of the downward pressure spring is connected to the top of the stripping sliding seat, and the other end of the downward pressure spring is connected to the sliding column; the downward pressure spring is used to pull the sliding column downward to press the thermal barrier coating; a circle of stripping scrapers is fixedly installed at the bottom of the sliding column, and the circle of stripping scrapers is used to scrape the bulging thermal barrier coating.

[0007] Preferably, the angle adapter also includes: a suction tube and a reset spring, the suction tube is fixedly mounted on the rotating sleeve; the suction tube passes through the mounting threaded tube; the suction tube is externally connected to a vacuum pump; the rotating sleeve is used for negative pressure suction of the thermal barrier coating; a reset spring is sleeved on the detection isolation tube; one end of the reset spring is connected to the detection isolation tube, and the other end of the reset spring is fixedly mounted on the rotating sleeve.

[0008] Preferably, the microscope base also includes: an electric heating plate, an adjusting worm and a guide tube, the electric heating plate is fixedly installed inside the microscope base plate; the adjusting worm is rotatably installed on the microscope base plate; the electric heating plate is located on the inner side of the mounting threaded cylinder; two guide tubes are fixedly installed on the microscope base plate, and valves are respectively provided on the two guide tubes; the upper guide tube is used for the inlet of corrosive liquid, and the lower guide tube is used for the outlet of corrosive liquid; a handwheel is provided on the side of the adjusting worm.

[0009] Preferably, the coating protection stripping member includes: a stripping sliding seat and a sliding column, the stripping sliding seat is fixedly installed on the inner side of the rotating sleeve; the sliding column is slidably sleeved on the stripping sliding seat; the bottom of the sliding column is an arc-shaped structure.

[0010] Preferably, the microscope adapter includes: an upper cover, a corrugated sleeve, a plastic tube and a lifting spring, the upper cover is threadedly connected to the mounting threaded tube; the corrugated sleeve is fixedly installed on the bottom of the upper cover; the plastic tube is fixedly installed on the bottom of the corrugated sleeve; the plastic tube is used to socket the microscope lens; the upper cover is fixedly installed on the bottom of the upper cover, and the lifting spring is socketed on the outside of the corrugated sleeve; the lifting spring and the outside of the corrugated sleeve are provided with a taper.

[0011] Preferably, the angle adapter includes: a rotating sleeve, a fill light and a rubber ring, the rotating sleeve is sleeved on the spherical cylinder; the fill light is fixedly installed on the inner side of the rotating sleeve; the fill light is used to fill light for the thermal barrier coating; the rubber ring is fixedly installed on the bottom of the rotating sleeve, and the rubber ring is used to fit the thermal barrier coating.

[0012] Preferably, the detection isolation component includes: a detection isolation cylinder, a spherical cylinder and an isolation lens, the detection isolation cylinder is fixedly installed on the bottom of the plastic cylinder; the spherical cylinder is fixedly installed on the bottom of the detection isolation cylinder; the outer side of the spherical cylinder is a spherical structure; the inner side of the detection isolation cylinder is fixedly sleeved with an isolation lens; the isolation lens is used to seal and isolate the detection isolation cylinder.

[0013] Preferably, the corrosion adjustment part includes: a driving worm gear, a clamping plate and a clamping bolt, the driving worm gear is rotatably mounted on the microscope base plate; the driving worm gear is engaged with the adjusting worm; the driving worm gear shaft end is fixedly mounted with a clamping plate, and a row of arc-shaped protrusions is provided on the inner side of the bottom of the clamping plate; the row of arc-shaped protrusions on the inner side of the bottom of the clamping plate is used to fit and clamp the turbine blades; a clamping bolt is threadedly connected to the clamping plate, and a handwheel is provided on the top of the clamping bolt; the clamping plate is a U-shaped structure.

[0014] Preferably, the isolation part includes: an isolation plate, a sliding guide shaft, a fitting spring, an isolation rubber sheet and a fitting sealing ring, the isolation plate is located inside the microscope base plate; two sliding guide shafts are fixedly installed on the isolation plate; the two sliding guide shafts are slidably inserted inside the microscope base plate; the two sliding guide shafts are respectively sleeved with fitting springs; the isolation rubber sheet is fixedly installed on the top of the electric heating plate, and both sides of the isolation rubber sheet are fixedly installed inside the microscope base plate; the isolation plate is fixedly fitted with the isolation rubber sheet; a fitting sealing ring is fixedly installed on the isolation plate, and the fitting sealing ring is used to seal and fit on the end of the turbine blade.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention uses a corrosion adjustment member to facilitate workers to quickly switch the inspection position of the turbine blade, ensuring comprehensive inspection. This structure can fit and seal the root of the turbine blade to prevent the root of the turbine blade from being corroded by corrosive liquid, which would cause the accuracy of the turbine blade root to be reduced when installed on the turbine ring. It also prevents excessive corrosion caused by the lack of a thermal barrier coating on the turbine blade root, thereby preventing economic losses caused by testing.

[0017] The use of microscope adapters can facilitate the corrosion test of this structure directly on the microscope's storage table, which can avoid the problem of dripping of corrosion liquid caused by taking and transferring turbine blades, resulting in low test efficiency. At the same time, this structure uses an upper cover for sealing, combined with an isolation lens, which does not affect the observation test under the microscope, and also plays a sealing role to prevent the residual corrosion liquid from evaporating and causing damage to the staff who are inspecting and observing on the microscope above.

[0018] The use of angle adapters can ensure that this structure has better adaptability to turbine blades with certain curved surfaces, and also ensure that the fill light can better fill in the light perpendicular to the detection surface, avoiding side light affecting the staff's observation. The use of negative pressure suction for testing can better test the adhesion of the thermal barrier coating surface, which is convenient for staff to fully understand the adhesion performance of the thermal barrier coating. The locations where there is peeling in the thermal barrier coating will swell under the action of negative pressure, preventing the thermal barrier coating that has only peeled but not cracked from being discovered.

[0019] The use of coating protection stripping parts can facilitate further separation of the coating at cracked and peeled locations, making it easier for workers to observe the corrosion of the turbine blade base at cracked and peeled locations under a microscope. The bottom end of the stripping scraper is higher than the sliding column, which can prevent the stripping scraper from scratching the turbine blade when rubbing the thermal barrier coating, thereby improving the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a device for detecting the performance of thermal barrier coatings on a workpiece according to the present invention;

[0021] Figure 2 This is a schematic diagram of the rear side structure of a workpiece thermal barrier coating performance detection device of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of a device for detecting the performance of thermal barrier coatings on a workpiece according to the present invention;

[0023] Figure 4 This is a schematic structural diagram of the microscope base of the present invention;

[0024] Figure 5 This is a schematic structural diagram of the corrosion regulating member of the present invention;

[0025] Figure 6 Schematic diagram of the isolation structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the installation position of the isolation part of the present invention;

[0027] Figure 8 This is a schematic diagram of the bottom structure of the microscope adapter of the present invention;

[0028] Figure 9 For the present invention Figure 3 A magnified view of the structure of the middle B region;

[0029] Figure 10 This is a schematic diagram of the structure of the detection isolation member of the present invention;

[0030] Figure 11 For the present invention Figure 10 A magnified view of the structure of the middle C region;

[0031] Figure 12 For the present invention Figure 3 A magnified view of the structure in region D.

[0032] In the figure: 1. Microscope base; 101. Microscope base plate; 1011. Mounting threaded cylinder; 1012. Electric heating plate; 102. Adjusting worm; 103. Guide tube; 2. Corrosion adjustment member; 201. Drive worm gear; 202. Clamping plate; 203. Clamping bolt; 3. Isolation part; 301. Isolation plate; 3011. Sliding guide shaft; 302. Fitting spring; 303. Isolation rubber sheet; 304. Fitting sealing ring; 4. Microscope adapter; 401. Upper cover; 402, corrugated sleeve; 403, plastic cylinder; 404, lifting spring; 5, detection isolation piece; 501, detection isolation cylinder; 5011, spherical cylinder; 502, isolation lens; 6, angle adapter; 601, rotating sleeve; 602, fill light; 603, rubber ring; 604, suction tube; 605, reset spring; 7, coating protection stripping piece; 701, stripping sliding seat; 702, sliding column; 7021, pressing spring; 703, stripping scraper. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1-12 As shown:

[0035] The present invention provides a technical solution: a workpiece thermal barrier coating performance detection device, comprising a microscope base 1, a corrosion adjustment part 2 is installed on the microscope base 1, and the interior of the microscope base 1 is used for introducing corrosion liquid; an isolation part 3 is installed on the microscope base 1; the isolation part 3 is used to fit a turbine blade; a microscope adapter 4 is installed on the microscope base 1; the microscope adapter 4 is used to dock with a microscope lens; a detection isolation part 5 is installed at the bottom of the microscope adapter 4; an angle adapter 6 is installed at the bottom of the detection isolation part 5; the angle adapter 6 is used to fit the thermal barrier coating of the turbine blade; the angle adapter 6 is used to negative pressure test the adhesion of the coating; a coating protection stripping part 7 is installed on the angle adapter 6; the coating protection stripping part 7 is used to fit the thermal barrier coating; the microscope base 1 comprises: a microscope base plate 101 and a mounting threaded barrel 1011, the microscope base plate 101 is installed with the mounting threaded barrel 1011, and the upper part of the mounting threaded barrel 1011 is provided with threads; the microscope base plate 101 is used to be placed on a microscope stage.

[0036] Among them, the microscope base part 1 also includes: an electric heating plate 1012, an adjusting worm 102 and a guide tube 103, the electric heating plate 1012 is fixedly installed inside the microscope base plate 101; the adjusting worm 102 is rotatably installed on the microscope base plate 101; the electric heating plate 1012 is located on the inner side of the mounting threaded cylinder 1011; two guide tubes 103 are fixedly installed on the microscope base plate 101, and valves are respectively provided on the two guide tubes 103; the upper guide tube 103 is used to enter the corrosion liquid, and the lower guide tube 103 is used to discharge the corrosion liquid; a hand wheel is provided on the side of the adjusting worm 102; the corrosion adjustment part 2 includes: a driving worm gear 201, a clamping plate 202 and a clamping bolt 203, the driving worm gear 201 is rotatably mounted on the microscope base plate 101; the driving worm gear 201 is engaged with the adjusting worm 102; the driving worm gear 201 shaft end is fixedly mounted with a clamping plate 202, and a row of arc-shaped protrusions are provided on the inner side of the bottom of the clamping plate 202; the row of arc-shaped protrusions on the inner side of the bottom of the clamping plate 202 is used to fit and clamp the turbine blades; a clamping bolt 203 is threadedly connected to the clamping plate 202, and a handwheel is provided on the top of the clamping bolt 203; the clamping plate 202 is a U-shaped structure; the isolation part 3 includes: an isolation plate 301, a sliding guide shaft 3011, a fitting spring 302, an isolation rubber sheet 303 and a fitting sealing ring 304, and the isolation plate 301 is located at the microscope Inside the base plate 101; two sliding guide shafts 3011 are fixedly installed on the isolation plate 301; the two sliding guide shafts 3011 are slidably inserted into the inside of the microscope base plate 101; the two sliding guide shafts 3011 are respectively sleeved with fitting springs 302; the isolation rubber sheet 303 is fixedly installed on the top of the electric heating plate 1012, and the two sides of the isolation rubber sheet 303 are fixedly installed inside the microscope base plate 101; the isolation plate 301 is fixedly fitted with the isolation rubber sheet 303; a fitting sealing ring 304 is fixedly installed on the isolation plate 301, and the fitting sealing ring 304 is used to seal and fit on the end of the turbine blade. The use of the corrosion adjustment member 2 can facilitate the staff to quickly switch The inspection position of the turbine blades can be freely controlled, which is more flexible and ensures comprehensive inspection. The microscope base 1 is used in conjunction with the isolation part 3 to immerse the turbine blades in corrosive liquid, and the corrosion resistance of the turbine blades can be tested. At the same time, this structure can fit and seal the roots of the turbine blades to prevent the roots of the turbine blades from being corroded by the corrosive liquid, resulting in reduced accuracy when the roots of the turbine blades are installed on the turbine ring, and avoiding excessive corrosion caused by the lack of a thermal barrier coating at the roots of the turbine blades. This structure is easy to install, and the flexible structure of the isolation rubber sheet 303, in conjunction with the fitting spring 302 to squeeze the isolation plate 301, can be elastically and tightly fitted on the turbine blades for sealing.

[0037] The microscope adapter 4 includes: an upper cover 401, a corrugated sleeve 402, a plastic tube 403 and an upper tension spring 404. The upper cover 401 is threadedly connected to the mounting threaded tube 1011; the corrugated sleeve 402 is fixedly installed at the bottom of the upper cover 401; the plastic tube 403 is fixedly installed at the bottom of the corrugated sleeve 402; the plastic tube 403 is used to sleeve the microscope lens; the upper cover 401 is fixedly installed at the bottom of the upper cover 401, and the upper tension spring 404 is sleeved on the corrugated sleeve The outer side of the sleeve 402; the upper tension spring 404 and the outer side of the corrugated sleeve 402 are provided with a taper; the detection isolation member 5 comprises: a detection isolation cylinder 501, a spherical cylinder 5011 and an isolation lens 502, the detection isolation cylinder 501 is fixedly mounted on the bottom of the plastic cylinder 403; the bottom of the detection isolation cylinder 501 is fixedly mounted with a spherical cylinder 5011; the outer side of the spherical cylinder 5011 is a spherical structure; the inner side of the detection isolation cylinder 501 is fixedly sleeved with an isolation lens 502; the isolation lens 50 2 is used for sealing and isolating the isolation cylinder 501 for testing; the microscope adapter 4 is used to facilitate the corrosion test of this structure directly on the storage table of the microscope, which can avoid the problem of dripping of corrosion liquid caused by picking up and transferring turbine blades, and low test efficiency. At the same time, this structure uses the upper cover 401 for sealing, and cooperates with the isolation lens 502, which does not affect the observation test of the microscope, and at the same time plays a sealing role to avoid the residual corrosion liquid from evaporating and causing damage to the staff who are inspecting and observing on the microscope above. At the same time, this structure uses the flexible structure of the corrugated sleeve 402 to ensure the flexibility of the microscope lens during observation, without affecting the adjustment of the observation direction of the microscope. The upper pull spring 404 is also used to pull the corrugated sleeve 402, so that the isolation lens 502 can be stably attached to the front end of the microscope lens to ensure the stability of the lens during adjustment. This structure also uses the isolation lens 502 to play an isolation role, which is convenient for subsequent negative pressure suction detection.

[0038] Among them, the angle adapter 6 includes: a rotating sleeve 601, a fill light 602 and a rubber ring 603, the rotating sleeve 601 is sleeved on the spherical cylinder 5011; the fill light 602 is fixedly installed on the inside of the rotating sleeve 601; the fill light 602 is used to fill light to the thermal barrier coating; a rubber ring 603 is fixedly installed on the bottom of the rotating sleeve 601, and the rubber ring 603 is used to fit the thermal barrier coating; the angle adapter 6 also includes: a suction tube 604 and a return spring 605, the suction tube 604 is fixedly installed on the rotating sleeve 601; the suction tube 604 passes through the mounting threaded cylinder 1011; the suction tube 604 is externally connected to a vacuum pump; the rotating sleeve 601 is used to negatively pressure suction the thermal barrier coating; the return spring 605 is sleeved on the detection isolation cylinder 501; one end of the return spring 605 is connected to the detection isolation cylinder 501, and the other end of the return spring 605 is fixedly mounted on the rotating sleeve 601 An angle adapter 6 is used on the sleeve 601. On the one hand, it can ensure that the present structure has better adaptability to turbine blades with a certain curved surface, ensure that the rubber ring 603 can adaptively fit the surface of the turbine blade, and also ensure that the fill light 602 can better fill in the light perpendicular to the detection surface to avoid side light affecting the staff's observation. On the other hand, the angle adapter 6 is used to test by negative pressure suction, which can better test the adhesion of the thermal barrier coating surface. During negative pressure suction, if the coating is peeled off, the coating will swell under the action of negative pressure, which can make it easier for the staff to observe and distinguish under a microscope, and have a more comprehensive understanding of the adhesion performance of the thermal barrier coating. Under the action of negative pressure, the peeling position in the thermal barrier coating will swell under the action of negative pressure, preventing the thermal barrier coating that is only peeled but not cracked from being discovered.

[0039] In the second embodiment, on the basis of the first embodiment, the coating protection stripping member 7 comprises: a stripping sliding seat 701 and a sliding column 702, the stripping sliding seat 701 is fixedly mounted on the inner side of the rotating sleeve 601; a sliding column 702 is slidably sleeved on the stripping sliding seat 701; the bottom of the sliding column 702 is an arc-shaped structure; the coating protection stripping member 7 further comprises: a downward tension spring 7021 and a stripping scraper 703, the downward tension spring 7021 is sleeved on the sliding column 702; one end of the downward tension spring 7021 is connected to the top of the stripping sliding seat 701, and the downward tension spring 7021 is connected to the top of the stripping sliding seat 701. The other end of 021 is connected to the sliding column 702; the downward tension spring 7021 is used to pull the sliding column 702 downward to press the thermal barrier coating; a circle of peeling scrapers 703 is fixedly installed at the bottom of the sliding column 702, and the circle of peeling scrapers 703 is used to scrape the bulging thermal barrier coating. The use of the coating protection stripping piece 7 can facilitate further separation of the coating at the cracked and peeled parts, so that it can be separated from the turbine blade base, which can facilitate the staff to observe the corrosion of the turbine blade base at the cracked and peeled hollow parts under a microscope. In order to more comprehensively understand the performance of the thermal barrier coating, the present structure adopts a stripping scraper 703 with its bottom end higher than the sliding post 702, which can prevent the stripping scraper 703 from scratching the turbine blade when rubbing the thermal barrier coating. The curved bottom structure of the sliding post 702 further prevents scratches on the turbine blade. This structure can prevent damage to normal turbine blades that meet the standards and avoid increased economic losses. The coating protection stripping piece 7 is used in conjunction with the angle adapter 6 to conduct a comprehensive test of the adhesion of the thermal barrier coating, which is also convenient for observation under a microscope and ensures the efficiency of the test. If the thermal barrier coating cracks or is corroded and peeled, the peeling area will be aggravated under the squeezing and friction of the sliding post 702, resulting in warping. During the movement of the sliding post 702, the stripping scraper 703 can further separate the warped area, making it easier for personnel to observe the corrosion of the substrate under the thermal barrier coating of the turbine blade and understand the anti-permeability of the thermal barrier coating. The bottom of the sliding post 702 is used to support the stripping scraper 703 to prevent the stripping scraper 703 from directly scratching and damaging the substrate under the thermal barrier coating of the turbine blade.

[0040] The working principle of this embodiment is as follows: first, the microscope base plate 101 is placed on the microscope stage, the turbine blade is placed on the microscope base plate 101, the root of the turbine blade is placed on the clamping plate 202, and the clamping bolt 203 is tightened to clamp and position it, the electric heating plate 1012 is energized for heating, the upper guide tube 103 is connected to the corrosion liquid pump to introduce the corrosion liquid into the microscope base plate 101, and the valve of the lower guide tube 103 is opened when draining. After the corrosion is completed, the lower guide tube 103 can be connected to the external liquid tank for recycling, and the rotating adjustment worm 102 can engage the driving worm gear 201 set to rotate, driving the turbine blade clamped on the clamping plate 202 to rotate and adjust; insert the microscope lens into the plastic cylinder 403, and the microscope lens can be lowered to the turbine blade at this time. During the process, the isolation lens 502 can be stably attached to the front end of the microscope lens, and the microscope lens is controlled to move downward, driving the rubber ring 603 to fit the surface of the workpiece and apply a certain pressure. During the process, the rotating sleeve 601 will be in the spherical cylinder 5011 is rotated to adapt to the surface of the turbine blade, and the vacuum pump connected to the suction pipe 604 is started. At this time, under the action of negative pressure, the peeling position in the thermal barrier coating will swell under the action of negative pressure, and microscopic inspection can be carried out through a microscope. After the negative pressure test is carried out through the angle adapter 6, the microscope lens is controlled to move slightly upward to prevent the rubber ring 603 from rubbing the thermal barrier coating. Under the elastic compression of the reset spring 605, the rotating sleeve 601 can be elastically squeezed to rotate and reset on the spherical cylinder 5011. At the same time, under the pull of the downward tension spring 7021, the bottom of the sliding column 702 elastically fits the thermal barrier coating. The thermal barrier coating can be rubbed and squeezed by the bottom of the sliding column 702. If the thermal barrier coating cracks or peels due to corrosion, its strength will be reduced. The peeling position will also be aggravated under the compression of the sliding column 702, resulting in warping. During the movement of the sliding column 702, the peeling scraper 703 can further separate the warping position, making it easier for workers to observe the corrosion of the substrate under the thermal barrier coating of the turbine blade through a microscope.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the performance of a thermal barrier coating on a workpiece, comprising a microscope base (1), a corrosion regulating member (2) being mounted on the microscope base (1), and characterized in that: The interior of the microscope base (1) is used for introducing a corrosive liquid; an isolation portion (3) is mounted on the microscope base (1); the isolation portion (3) is used for fitting a turbine blade; A microscope adapter (4) is mounted on the microscope base (1); the microscope adapter (4) is used for docking with a microscope lens; A detection isolation piece (5) is installed at the bottom of the microscope adapter (4); an angle adapter (6) is installed at the bottom of the detection isolation piece (5); the angle adapter (6) is used to adhere to the thermal barrier coating of the turbine blade; The angle adapter (6) is used for negative pressure testing of coating adhesion; A coating protection stripping piece (7) is installed on the angle adapter (6); the coating protection stripping piece (7) is used to adhere to the thermal barrier coating; The microscope base portion (1) comprises: a microscope base plate (101) and a mounting threaded barrel (1011); the microscope base plate (101) is mounted with the mounting threaded barrel (1011), and the upper portion of the mounting threaded barrel (1011) is provided with threads; the microscope base plate (101) is used to be placed on a microscope stage; The microscope adapter (4) comprises: an upper cover (401), a corrugated sleeve (402), a plastic tube (403) and an upper tension spring (404); the upper cover (401) is threadedly connected to the mounting threaded tube (1011); the corrugated sleeve (402) is fixedly mounted on the bottom of the upper cover (401); the plastic tube (403) is fixedly mounted on the bottom of the corrugated sleeve (402); the plastic tube (403) is used for sleeve-mounting a microscope lens; the upper cover (401) is fixedly mounted on the bottom of the upper cover (401), and the upper tension spring (404) is sleeved on the outside of the corrugated sleeve (402); the upper tension spring (404) and the outside of the corrugated sleeve (402) are provided with a taper.

2. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 1, wherein: The microscope base (1) further comprises: an electric heating plate (1012), an adjusting worm (102) and a guide tube (103); the electric heating plate (1012) is fixedly mounted inside the microscope base plate (101); the adjusting worm (102) is rotatably mounted on the microscope base plate (101); the electric heating plate (1012) is located inside the mounting threaded cylinder (1011); two guide tubes (103) are fixedly mounted on the microscope base plate (101), and valves are respectively provided on the two guide tubes (103); the upper guide tube (103) is used for inletting etching liquid, and the lower guide tube (103) is used for outletting etching liquid; and a hand wheel is provided on the side of the adjusting worm (102).

3. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 2, wherein: The corrosion adjustment member (2) comprises: a driving worm gear (201), a clamping plate (202) and a clamping bolt (203); the driving worm gear (201) is rotatably mounted on a microscope base plate (101); the driving worm gear (201) is engaged with an adjustment worm (102); a clamping plate (202) is fixedly mounted on the shaft end of the driving worm gear (201), and a row of arc-shaped protrusions is provided on the inner side of the bottom of the clamping plate (202); the row of arc-shaped protrusions on the inner side of the bottom of the clamping plate (202) is used to fit and clamp turbine blades; a clamping bolt (203) is threadedly connected to the clamping plate (202), and a handwheel is provided on the top of the clamping bolt (203); the clamping plate (202) is a U-shaped structure.

4. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 2, wherein: The isolation portion (3) comprises: an isolation plate (301), a sliding guide shaft (3011), a fitting spring (302), an isolation rubber sheet (303) and a fitting sealing ring (304); the isolation plate (301) is located inside the microscope base plate (101); two sliding guide shafts (3011) are fixedly mounted on the isolation plate (301); the two sliding guide shafts (3011) are slidably inserted inside the microscope base plate (101); the two sliding guide shafts (3011) are respectively sleeved with a fitting spring (302); the isolation rubber sheet (303) is fixedly mounted on the top of the electric heating plate (1012), and both sides of the isolation rubber sheet (303) are fixedly mounted inside the microscope base plate (101); the isolation plate (301) is fixedly fitted with the isolation rubber sheet (303); a fitting sealing ring (304) is fixedly mounted on the isolation plate (301), and the fitting sealing ring (304) is used for sealing and fitting on the end of the turbine blade.

5. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 1, wherein: The detection isolation member (5) comprises: a detection isolation cylinder (501), a spherical cylinder (5011) and an isolation lens (502); the detection isolation cylinder (501) is fixedly mounted on the bottom of a plastic cylinder (403); the spherical cylinder (5011) is fixedly mounted on the bottom of the detection isolation cylinder (501); the outer side of the spherical cylinder (5011) is a spherical structure; the inner side of the detection isolation cylinder (501) is fixedly sleeved with the isolation lens (502); the isolation lens (502) is used for sealing and isolating the detection isolation cylinder (501).

6. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 5, characterized in that: The angle adapter (6) comprises: a rotating sleeve (601), a fill light (602) and a rubber ring (603); the rotating sleeve (601) is sleeved on the spherical cylinder (5011); the fill light (602) is fixedly installed on the inner side of the rotating sleeve (601); the fill light (602) is used to fill light for the thermal barrier coating; the rubber ring (603) is fixedly installed on the bottom of the rotating sleeve (601), and the rubber ring (603) is used to fit the thermal barrier coating.

7. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 6, characterized in that: The angle adapter (6) further comprises: a suction pipe (604) and a return spring (605); the suction pipe (604) is fixedly mounted on the rotating sleeve (601); the suction pipe (604) passes through the mounting threaded cylinder (1011); the suction pipe (604) is externally connected to a vacuum pump; the rotating sleeve (601) is used for negative pressure suction of the thermal barrier coating; the return spring (605) is sleeved on the detection isolation cylinder (501); one end of the return spring (605) is connected to the detection isolation cylinder (501), and the other end of the return spring (605) is fixedly mounted on the rotating sleeve (601).

8. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 6, wherein: The coating protection stripping member (7) comprises: a stripping sliding seat (701) and a sliding column (702); the stripping sliding seat (701) is fixedly mounted on the inner side of the rotating sleeve (601); the sliding column (702) is slidably sleeved on the stripping sliding seat (701); and the bottom of the sliding column (702) is an arc-shaped structure.

9. The device for detecting the performance of a thermal barrier coating on a workpiece according to claim 8, characterized in that: The coating protection stripping member (7) further comprises: a downward pressure spring (7021) and a stripping scraper (703), wherein the downward pressure spring (7021) is sleeved on the sliding column (702); one end of the downward pressure spring (7021) is connected to the top of the stripping sliding seat (701), and the other end of the downward pressure spring (7021) is connected to the sliding column (702); the downward pressure spring (7021) is used to pull the sliding column (702) downward to press the thermal barrier coating; a circle of stripping scrapers (703) is fixedly installed at the bottom of the sliding column (702), and the circle of stripping scrapers (703) is used to scrape the bulging thermal barrier coating.

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