Hardness detection equipment for high-temperature alloy production and method thereof

Abstract

The invention discloses hardness detection equipment for high-temperature alloy production and a method thereof, and relates to the technical field of alloy detection, the hardness detection equipment comprises a control table and a lifting table mounted on the control table, and further comprises an alloy sheet and a heating furnace fixedly mounted on the lifting table; a pressing assembly is installed on the control table, the heating furnace is composed of a furnace body and a furnace cover, the furnace body is rotationally connected with the furnace cover, an electric heating wire is installed in the furnace body and connected with the control table through a wire, and a fixing assembly matched with the alloy sheet is installed in the furnace body. The device has the advantages that the pressing ball is arranged in the heating furnace, the temperature difference between the pressing ball and the alloy sheet is reduced, the influence of the temperature difference on hardness detection is reduced, the through hole in the furnace cover is mechanically blocked, the probability that external air enters the heating furnace is effectively reduced, and meanwhile gas injection protection is conducted on the interior of the heating furnace; the surface of the alloy sheet is effectively prevented from being heated and oxidized, and the hardness detection accuracy of the alloy sheet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of alloy detection, and in particular to a hardness detection device and method for high-temperature alloy production. Background Art

[0002] Alloys are materials formed by melting and mixing two or more elements. The main purpose of alloys is to combine the excellent properties of different elements to create new materials with better performance. Alloys can be used to improve the strength, hardness and corrosion resistance of raw materials.

[0003] Before alloy production is put into use, a series of tests are required on the physical and chemical properties of the alloy. Hardness test is one of the many tests. The high-temperature hardness tester currently used can only achieve a limited number of hardness value tests under a specific temperature environment, and cannot achieve continuous testing of multi-point hardness values ​​within a large temperature range. When testing hardness indicators at different temperatures, it is often necessary to repeatedly heat and test different samples. The entire testing process is both complicated and time-consuming;

[0004] Therefore, publication number CN208999237U discloses a high-temperature hardness tester that can perform continuous variable temperature multi-point testing, which includes a hardness tester body, a hardness tester indenter, a heating furnace, a sample moving mechanism, a heating furnace rotating mechanism, a heating furnace lifting platform, a hardness tester lower support structure, a heating furnace atmosphere protection device and a heating furnace induction heating control device. The hardness tester indenter is connected to the hardness tester body, the lower end of the hardness tester indenter is opposite to the heating furnace, the heating furnace is installed on the heating furnace rotating mechanism, and the heating furnace rotating mechanism is fixed on the heating furnace lifting platform.

[0005] The heating furnace rotating mechanism of the above-mentioned high-temperature hardness tester can drive the heating furnace to rotate eccentrically around the hardness tester head, and the sample moving mechanism connected to the heating furnace can push the sample to move back and forth. The combination of the eccentric rotation of the heating furnace and the back and forth movement of the sample can form any number of hardness test points between the sample surface in the heating furnace and the hardness tester head to perform multi-point hardness testing; the heating furnace lifting platform can adjust the height of the heating furnace to adapt to the hardness test of samples of different thicknesses; the heating furnace atmosphere protection device and the heating furnace induction heating control device can change the temperature atmosphere, atmosphere protection atmosphere and other external conditions accordingly.

[0006] However, when the above-mentioned high-temperature hardness tester and the existing high-temperature hardness tester are used, the alloy test piece needs to be placed in a high-temperature furnace for heating. The furnace contains a certain amount of air. After heating, a layer of oxide protective film will be formed on the surface of the alloy, affecting the detection accuracy; after heating, the pressure head of the hardness tester is inserted into the high-temperature furnace to press the alloy piece for detection. After the pressure head is inserted into the high-temperature furnace, air will be brought in, causing the alloy to oxidize again. In addition, the temperature of the pressure head is lower than the temperature in the furnace, so the pressure head needs to be heated. Since the pressure head is located outside the furnace, there are certain safety hazards after heating, and the pressure head is exposed to the air. After heating, oxidation will occur, which will shorten the service life of the pressure head.

[0007] Therefore, a new type of hardness testing equipment and method for high temperature alloy production can be used to solve the shortcomings of the prior art. Summary of the invention

[0008] The purpose of the present invention is to solve the problems existing in the prior art and to propose a hardness testing device and method for high temperature alloy production.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A hardness testing device for high-temperature alloy production, comprising a console and a lifting platform installed on the console, and also comprising an alloy sheet and a heating furnace fixedly installed on the lifting platform;

[0011] A pressing component is installed on the control console. The heating furnace is composed of a furnace body and a furnace cover. The furnace body and the furnace cover are rotatably connected. A heating wire is installed inside the furnace body. The heating wire is connected to the control console through a wire. A fixing component matching the alloy sheet is installed inside the furnace body. An anti-oxidation component matching the alloy sheet is installed inside the furnace body.

[0012] A through hole is provided on the furnace cover for the entry and exit of the first push rod, the second push rod and the concave column. A blocking component matching the through hole is installed on the furnace cover. A pressing ball matching the pressing component is installed on the furnace cover through a hanging component.

[0013] Preferably, the pressing assembly includes an electric push rod fixedly mounted on the top of the console, a first push rod is fixedly mounted on the telescopic end of the electric push rod, a second push rod is fixedly mounted on the bottom of the first push rod, and a concave column is fixedly mounted on the bottom of the second push rod.

[0014] Preferably, the fixing assembly includes a fixing plate fixedly mounted on the bottom of the furnace body, a supporting plate fixedly mounted on the fixing plate, a plurality of adjusting pillars fixedly mounted on the fixing plate, and a plurality of clamps matched with the corresponding adjusting pillars fixedly mounted on the fixing plate, and a plurality of side lockers matched with the alloy sheets fixedly mounted on the fixing plate.

[0015] Preferably, the anti-oxidation component includes an air intake mechanism and an air exhaust mechanism, the air intake mechanism is used to inject inert gas into the interior of the furnace body, and the air exhaust mechanism is used to suck out the inert gas inside the furnace body. A cooler is installed on the control console and is connected to the air exhaust mechanism for cooling and discharging the sucked inert gas.

[0016] Preferably, the air intake mechanism includes an air intake pipe, and the air outlet mechanism includes an air outlet pipe, the air intake pipe is fixedly connected with a plurality of air intake branches, the air outlet pipe is fixedly connected with two air outlet branches, each of the air intake branch pipes and the two air outlet branch pipes are installed with an electric control valve, a heater is commonly fixedly installed on the plurality of air intake branch pipes for heating the inert gas inside the air intake branch pipes, each of the air intake branch pipes and the two air outlet branch pipes are fixedly connected with a gas distributor, and each of the gas distributors is fixedly connected with a plurality of air nozzles.

[0017] Preferably, the sealing group is composed of multiple groups of first sealing plates and second sealing plates, each group of the first sealing plates is slidably connected to the furnace cover, each group of the second sealing plates is slidably connected to the corresponding first sealing plates, a first return spring is fixedly installed between each of the first sealing plates and the furnace cover, a second return spring is fixedly installed between each of the second sealing plates and the corresponding first sealing plates, and each of the first sealing plates and the second sealing plates have a recessed design on one side close to each other for cooperating with the first push rod and the second push rod.

[0018] Preferably, the lifting assembly includes a plurality of first hinges and second hinges, a lifting spring is fixedly installed between each of the first hinges and the corresponding second hinge, a ring is rotatably installed on the pressing ball, and each of the second hinges is rotatably connected to the ring, a plurality of gaskets are slidably installed on the furnace cover, and each of the first hinges is rotatably connected to the corresponding gasket, and an adjustment mechanism that cooperates with the plurality of gaskets is installed on the furnace cover.

[0019] Preferably, the adjustment mechanism includes a limit plate fixedly mounted on the furnace cover, a plurality of limit slots are formed on the limit plate, each gasket is rotatably mounted with a sliding column that cooperates with the corresponding limit slot, and a driving structure that cooperates with the limit plate is installed on the furnace cover.

[0020] Preferably, the driving structure comprises a gear ring fixedly mounted on the limiting plate, a driving motor is fixedly mounted on the furnace cover, and a gear meshing with the gear ring is fixedly mounted on the driving end of the driving motor.

[0021] The present invention also provides a method for testing hardness of high temperature alloys for production, comprising the above-mentioned hardness testing device for high temperature alloy production, and further comprising the following steps:

[0022] S1. Before testing the hardness of the alloy, the alloy needs to be cut into disc-shaped alloy sheets with a thickness of more than two centimeters and the surface of the alloy needs to be polished;

[0023] S2, then put the alloy sheet into the heating furnace, and fix the alloy sheet with a fixing component, close the heating furnace after the fixing is completed, then adjust the height of the heating furnace by the lifting platform on the control console, and then heat the alloy sheet by the heating wire;

[0024] S3. During the heating process, the air in the heating furnace is extracted through the anti-oxidation component, and an inert gas is injected into the heating furnace for protection;

[0025] S4. After the temperature in the heating furnace reaches a certain level, the pressing component is moved downward. The pressing component will push open the sealing component, so that the pressing component will push against the pressing ball in the heating furnace, and the pressing ball will move downward until the pressing ball pushes against the alloy sheet. Then, pressure is continued to be applied to make the pressing ball sink into the alloy sheet, leaving an indentation on the alloy sheet. The indentation diameter and pressing force are automatically detected by the control console, so as to detect the hardness of the alloy sheet. After the detection is completed, the pressing component is pulled out, and the pressing ball is reset under the action of the lifting component.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. When the hardness testing equipment is used to test the high-temperature hardness of alloys, an air inlet mechanism is set to inject protective inert gas into the heating furnace, and the inert gas is discharged through the air outlet mechanism. Exhausting the air in the heating furnace can effectively reduce the influence of oxygen in the air on the heating of the alloy, avoid the occurrence of oxides on the surface of the alloy causing deviation in the test results, and effectively improve the test accuracy.

[0028] 2. When conducting high-temperature hardness testing on alloys, this hardness testing equipment seals the through holes on the furnace cover by setting up a sealing component, and slowly opens the through holes in the process of pressing the component into the heating furnace, which can effectively reduce the amount of air brought in, and can also form a layer of inert gas protective air flow curtain on the upper surface of the alloy sheet through the cooperation of the air intake mechanism and the air outlet mechanism, which can automatically bring out the brought-in air, avoid contact between the air and the alloy sheet, and further reduce the probability of the alloy sheet being oxidized.

[0029] 3. When the hardness testing equipment conducts high-temperature hardness testing on alloys, by setting the pressing ball inside the heating furnace, the pressing ball can be heated while the alloy sheet is being heated, so that the temperature of the pressing ball and the alloy sheet are consistent, which can reduce the influence of temperature difference on the hardness testing of the alloy sheet. At the same time, the high-temperature pressing ball is always located inside the heating furnace, which is safer and can effectively avoid the situation where the pressing ball is heated and oxidized, causing the life of the pressing ball to be shortened, thereby effectively extending the service life of the pressing ball.

[0030] To summarize, the present invention arranges the pressing ball inside the heating furnace, reduces the temperature difference between the pressing ball and the alloy sheet, reduces the influence of the temperature difference on the hardness detection, and mechanically seals the through hole on the furnace cover, effectively reducing the probability of outside air entering the heating furnace. At the same time, the interior of the heating furnace is protected by gas injection, effectively preventing the surface of the alloy sheet from being heated and oxidized, thereby improving the accuracy of the hardness detection of the alloy sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0032] Figure 1 This is a structural schematic diagram of a hardness testing device for high-temperature alloy production proposed by the present invention;

[0033] Figure 2 for Figure 1 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0034] Figure 3 for Figure 2 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0035] Figure 4 It is a schematic detailed diagram of the enlarged structure of part A in FIG3 ;

[0036] Figure 5 for Figure 1 A detailed schematic diagram of the enlarged structure of the middle conductor and the heating furnace;

[0037] Figure 6 for Figure 5 Detailed diagram of the structure after opening the furnace cover;

[0038] Figure 7 for Figure 6 Detailed schematic diagram of the structure after removing the alloy sheet and rotating it at a certain angle;

[0039] Figure 8 for Figure 7 A detailed diagram of the enlarged structure of the middle support plate, fixed plate, air intake mechanism and air outlet mechanism;

[0040] Fig. 9 for Figure 8 A detailed schematic diagram of the enlarged structure of the middle support plate and the fixed plate;

[0041] Fig.10 for Figure 8 An enlarged structural schematic detailed diagram of the middle air intake mechanism;

[0042] Fig.11 for Figure 5 An enlarged structural schematic detail diagram of the middle furnace cover;

[0043] Fig.12 for Fig.11 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0044] Fig.13 for Fig.11 A detailed schematic diagram of the structure after removing the furnace cover, the first blocking plate and the second blocking plate;

[0045] Fig.14 for Fig.13 The enlarged structural schematic details of the pressing ball and the hanging spring part;

[0046] Fig.15 for Fig.11 A schematic detailed view of the plan structure along one of the angles;

[0047] Fig.16 for Fig.15 Detailed schematic diagram of the three-dimensional structure along the BB section;

[0048] Fig.17 for Fig.16 A detailed schematic diagram of the enlarged structure of a group of first sealing plates and second sealing plates.

[0049] In the figure: 1 control console, 2 lifting platform, 3 wire, 4 heating furnace, 5 cooler, 6 regulator, 7 first push rod, 8 second push rod, 9 concave column, 10 furnace body, 11 furnace cover, 12 air intake mechanism, 13 driving motor, 14 air outlet mechanism, 15 alloy sheet, 16 limit plate, 17 support plate, 18 fixed plate, 19 clamp, 20 adjustment support, 21 side lock, 22 air intake pipe, 23 electric control valve, 24 heater, 25 air distributor, 26 air nozzle, 27 first blocking plate, 28 second blocking plate, 29 lifting spring, 30 pressing ball, 31 gear ring, 32 limit groove, 33 first hinge, 34 second hinge, 35 sliding column, 36 first return spring, 37 second return spring. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0051] Example 1: Reference Figure 1-Figure 3 A hardness testing device for high-temperature alloy production includes a control console 1 and a lifting platform 2 installed on the control console 1 , and also includes an alloy sheet 15 and a heating furnace 4 fixedly installed on the lifting platform 2 .

[0052] An adjuster 6 is installed on the side of the console 1 for adjusting the height of the lifting platform 2. The purpose of adjusting the height of the lifting platform 2 is to adjust the position of the alloy sheet 15 to ensure that the alloy sheet 15 is within the pressing range.

[0053] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 10 A pressing assembly is installed on the console 1, and the pressing assembly includes an electric push rod fixedly installed on the top of the console 1, a first push rod 7 is fixedly installed on the telescopic end of the electric push rod, a second push rod 8 is fixedly installed on the bottom of the first push rod 7, and a concave column 9 is fixedly installed on the bottom of the second push rod 8.

[0054] The lower ends of the first push rod 7 and the second push rod 8 are both conical in design, which can decompose the pressure so that the first push rod 7 and the second push rod 8 can withstand a greater pressing force; the electric push rod drives the first push rod 7 and the second push rod 8 to move, thereby driving the concave column 9 to move.

[0055] The concave column 9 has a concave design at its lower end to form a hemispherical groove.

[0056] The heating furnace 4 is composed of a furnace body 10 and a furnace cover 11, the furnace body 10 and the furnace cover 11 are rotatably connected, a heating wire is installed inside the furnace body 10, the heating wire is connected to the control console 1 through a wire 3, and a fixing component matched with the alloy sheet 15 is installed inside the furnace body 10;

[0057] The heating wire surrounds the side wall of the furnace body 10 and is used to heat the alloy sheet 15. The heating temperature is generally 1000-1300 degrees Celsius. A controller is provided in the control console 1 to control the temperature of the heating wire through the wire 3.

[0058] The fixing assembly includes a fixing plate 18 fixedly mounted on the bottom of the furnace body 10, a supporting plate 17 fixedly mounted on the fixing plate 18, a plurality of adjusting pillars 20 fixedly mounted on the fixing plate 18, and a plurality of clamps 19 fixedly mounted on the fixing plate 18 that cooperate with the corresponding adjusting pillars 20, and a plurality of side lockers 21 fixedly mounted on the fixing plate 18 that cooperate with the alloy sheet 15.

[0059] The adjusting support 20 is composed of a screw, a support column and a nut. The nut is fixedly connected to the support column. The height of the support column can be changed by rotating the nut so that the upper end of the support column and the support plate 17 are located on the same horizontal line;

[0060] The clamp 19 is an existing clamping component, which is composed of a clamp and an adjusting unit. The position of the clamp is changed by adjusting the unit so that the clamp cooperates with the support column to clamp the alloy sheet 15.

[0061] The side locker 21 is composed of a support column, a screw rod and a threaded sleeve. The threaded sleeve is fixedly connected to the fixed plate 18, and the screw rod is fixedly connected to the support column. Rotating the screw rod can change the position of the support column so that the support column and the alloy sheet 15 are pressed against each other to fix the side of the alloy sheet 15 to prevent the alloy sheet 15 from moving during the press detection.

[0062] An anti-oxidation component that cooperates with the alloy sheet 15 is installed in the furnace body 10, and the anti-oxidation component includes an air intake mechanism 12 and an air outlet mechanism 14. The air intake mechanism 12 is used to inject inert gas into the furnace body 10, and the air outlet mechanism 14 is used to suck out the inert gas inside the furnace body 10. A cooler 5 is installed on the control console 1 and is connected to the air outlet mechanism 14 for cooling and discharging the sucked inert gas.

[0063] The air intake mechanism 12 is connected to an external inert gas source. Inert gas is injected into the heating furnace 4 through the air intake mechanism 12, and then the gas in the heating furnace 4 is sucked out through the air outlet mechanism 14. The inert gas will bring out the air in the heating furnace 4, which can reduce the probability of the alloy sheet 15 being oxidized. Since the sucked inert gas contains a large amount of heat, a cooler 5 is required to cool the inert gas discharged from the heating furnace 4 (the inert gas generally uses argon or nitrogen) to prevent the direct discharge of high-temperature inert gas from causing safety hazards.

[0064] The air intake mechanism 12 includes an air intake pipe 22, and the air outlet mechanism 14 includes an air outlet pipe, which is connected to the cooler 5. The air intake pipe 22 is fixedly connected with a plurality of air intake branches, and the air outlet pipe is fixedly connected with two air outlet branches. An electric control valve 23 is installed on each air intake branch and the two air outlet branches. A heater 24 is fixedly installed on the plurality of air intake branches for heating the inert gas inside the air intake branch. The heating temperature of the inert gas is the same as the temperature in the heating furnace 4, so as to avoid the negative impact of the temperature change in the heating furnace 4 on the detection.

[0065] Each air inlet branch pipe and the two air outlet branch pipes are fixedly connected to a gas distributor 25 , and each gas distributor 25 is fixedly connected to a plurality of gas nozzles 26 .

[0066] like Figure 8 As shown, the air divider 25 on the air intake mechanism 12 is divided into a first air divider, a second air divider and a third air divider from top to bottom, and the air divider 25 on the air outlet mechanism 14 is divided into an air divider one and an air divider two from top to bottom. The height of the first air divider and the air divider one is higher than the height of the alloy sheet 15, the height of the second air divider and the air divider two is the same as the height of the alloy sheet 15, and the height of the third air divider is lower than the height of the alloy sheet 15.

[0067] The electric control valve 23 is connected to the control console 1 , and the opening and closing of the electric control valve 23 can be automatically controlled by setting a program.

[0068] The coordination of the gas distributor 25 can achieve the following three effects:

[0069] Exhaust (air in the heating furnace 4): The third gas distributor and the first gas distributor are opened through the electric control valve 23, and the other gas distributors 25 are closed. At this time, the incoming inert gas will enter from the position near the bottom of the heating furnace 4 and be discharged from the position near the top of the heating furnace 4, so that the air in the heating furnace 4 can be discharged as much as possible;

[0070] Reduce the oxidation on the upper surface of the alloy sheet 15: The second gas distributor and the gas distributor 2 are opened by the electric control valve 23, and the other gas distributors 25 are closed. The height of the second gas distributor and the gas distributor 2 is flush with the height of the alloy sheet 15, and the air is inlet from the second gas distributor and outlet from the gas distributor 2. At this time, the inert gas in the heating furnace 4 will directly blow over the surface of the alloy sheet 15 to form a layer of inert gas protection curtain, which can not only be used to prevent oxidation, but also can be used to purge and clean the surface of the alloy sheet 15;

[0071] Prevent the air from coming into contact with the alloy sheet 15: At this time, the first gas distributor is controlled by the electric control valve 23 and the gas distributor is opened. At this time, the inert gas will form an inert gas protection curtain above the alloy sheet 15. At this time, the air entering the heating furnace 4 from above will be directly brought out by the protection curtain and will not come into contact with the alloy sheet 15.

[0072] Embodiment 3: This embodiment is different from the technical solution of Embodiment 2 in that: Figure 4-Figure 7 , Figure 11-Figure 17 A through hole is provided on the furnace cover 11 for the first push rod 7, the second push rod 8 and the concave column 9 to enter and exit, and a plugging component matching the through hole is installed on the furnace cover 11;

[0073] The sealing assembly is used to seal the through hole on the furnace cover 11, and when the alloy sheet 15 is heated, the heating furnace 4 is kept airtight to prevent air from entering, and the high-temperature inert gas in the heating furnace 4 is also prevented from leaking out.

[0074] The sealing group is composed of multiple groups of first sealing plates 27 and second sealing plates 28. Each group of first sealing plates 27 is slidably connected to the furnace cover 11, and each group of second sealing plates 28 is slidably connected to the corresponding first sealing plates 27. A first return spring 36 is fixedly installed between each first sealing plate 27 and the furnace cover 11, and a second return spring 37 is fixedly installed between each second sealing plate 28 and the corresponding first sealing plate 27. The side where each first sealing plate 27 and the second sealing plate 28 are close to each other adopts a recessed design for cooperating with the first push rod 7 and the second push rod 8.

[0075] The purpose of adopting the concave design on the side where the first sealing plate 27 and the second sealing plate 28 are close to each other is to cooperate with the first push rod 7 and the second push rod 8 above. The lower ends of the first push rod 7 and the second push rod 8 are both conical in design. The conical surface cooperates with the concave, and can automatically drive the first sealing plate 27 and the second sealing plate 28 to move under the action of the first push rod 7 and the second push rod 8 without the need for mechanical power drive.

[0076] The second sealing plate 28 moves and retracts into the first sealing plate 27, and the first sealing plate 27 moves and retracts into the furnace cover 11. As the first push rod 7 and the second push rod 8 are pulled out, the first sealing plate 27 is reset under the action of the first reset spring 36, and the second sealing plate 28 is reset under the action of the second reset spring 37.

[0077] When the second sealing plate 28 and the first sealing plate 27 move, a gap will be generated between two adjacent first sealing plates 27 and two adjacent second sealing plates 28, and outside air will enter the furnace body 10 (due to the presence of an inert gas protection curtain in the furnace body 10, the hot air inside the furnace body 10 will not leak out from the gap. On the contrary, under the principle of fluid dynamics, the outside air will be sucked into the furnace body 10. However, due to the presence of the protection curtain, the sucked air will flow out together with the protection curtain and will not come into contact with the alloy sheet 15).

[0078] A pressing ball 30 that cooperates with the pressing assembly is installed on the furnace cover 11 through a hanging assembly. The hanging assembly includes multiple first hinges 33 and second hinges 34. A hanging spring 29 is fixedly installed between each first hinge 33 and the corresponding second hinge 34. A ring is rotatably installed on the pressing ball 30, and each second hinge 34 is rotatably connected to the ring. Multiple gaskets are slidably installed on the furnace cover 11, and each first hinge 33 is rotatably connected to the corresponding gasket. An adjustment mechanism that cooperates with the multiple gaskets is installed on the furnace cover 11.

[0079] The pressing ball 30 is arranged inside the heating furnace 4, and the pressing ball 30 can be heated while the alloy sheet 15 is being heated, so that the temperature of the pressing ball 30 and the alloy sheet 15 are consistent, which can reduce the influence of the temperature difference on the hardness detection of the alloy sheet 15. At the same time, the high-temperature pressing ball 30 is always located inside the heating furnace 4, which is safer and can effectively avoid the situation where the pressing ball 30 is heated and oxidized, causing the life of the pressing ball 30 to be shortened, thereby effectively extending the service life of the pressing ball 30.

[0080] The hemispherical groove on the concave column 9 has the same size as the pressing ball 30 . When the concave column 9 abuts against the pressing ball 30 , the pressing ball 30 will be stuck in the groove to prevent the pressing ball 30 from deflecting.

[0081] When the concave column 9 moves downward, it will drive the pressing ball 30 to move downward, and at this time, it will drive the hanging spring 29 to stretch. When the concave column 9 moves upward, the pressing ball 30 is reset under the action of the hanging spring 29.

[0082] The adjustment mechanism includes a limit plate 16 fixedly mounted on the furnace cover 11, and a plurality of limit grooves 32 are provided on the limit plate 16. The limit grooves 32 are inclined and have an inclination angle of 45 degrees. A sliding column 35 that cooperates with the corresponding limit groove 32 is rotatably mounted on each gasket, and a driving structure that cooperates with the limit plate 16 is installed on the furnace cover 11.

[0083] Since the hanging spring 29 is located inside the heating furnace 4 and needs to be stretched and reset frequently for a long time, the hanging spring 29 will be stretched and deformed after being used for a period of time. At this time, the pressing ball 30 cannot be restored to its original position. At this time, the elastic force of the hanging spring 29 needs to be changed by an adjustment mechanism;

[0084] By rotating the limit plate 16, the sliding column 35 will slide on the furnace cover 11 under the action of the limit groove 32 on the limit plate 16, thereby changing the distance between the first hinge 33 and the second hinge 34. At this time, the length of the hanging spring 29 changes, so the elastic force of the hanging spring 29 changes.

[0085] The driving structure includes a gear ring 31 fixedly mounted on the limiting plate 16 , a driving motor 13 fixedly mounted on the furnace cover 11 , and a gear meshing with the gear ring 31 fixedly mounted on the driving end of the driving motor 13 .

[0086] A pressing ball 30 position sensor is installed inside the furnace body 10 to monitor the position of the pressing ball 30 and ensure that the position of the pressing ball 30 is higher than the height of the alloy sheet 15. If it does not meet the standard, the height of the pressing ball 30 is adjusted by the adjustment mechanism.

[0087] The sensor is connected to the drive motor 13, and a controller is installed between the two to control the operation of the drive motor 13 to achieve the purpose of automatic height adjustment. The drive end of the drive motor 13 rotates to drive the gear fixedly connected to it to rotate, and the gear drives the gear ring 31 to rotate, thereby driving the limit plate 16 to rotate.

[0088] The specific operation steps of this device are as follows:

[0089] S1. Before the hardness test of the alloy is performed, the alloy needs to be cut into a disc-shaped alloy sheet 15, the thickness of the alloy exceeds two centimeters, and the surface of the alloy is polished;

[0090] S2, then put the alloy sheet 15 into the heating furnace 4, and use the fixing assembly to fix the alloy sheet 15, after the fixing is completed, close the heating furnace 4, then adjust the height of the heating furnace 4 by the lifting platform 2 on the control console 1, and then heat the alloy sheet 15 by the heating wire;

[0091] S3, during the heating process, the air in the heating furnace 4 is extracted through the anti-oxidation component, and an inert gas is injected into the heating furnace 4 for protection;

[0092] S4. After the temperature in the heating furnace 4 reaches a certain temperature, the pressing component is moved downward, and the pressing component will push open the blocking component, so that the pressing component and the pressing ball 30 in the heating furnace 4 are pressed against each other, and the pressing ball 30 is moved downward until the pressing ball 30 and the alloy sheet 15 are pressed against each other. Then, pressure is continued to be applied to make the pressing ball 30 sink into the alloy sheet 15, and an indentation is pressed on the alloy sheet 15. The indentation diameter and the pressing force are automatically detected by the control console 1, so that the hardness of the alloy sheet 15 can be detected. After the detection is completed, the pressing component is pulled out, and the pressing ball 30 is reset under the action of the lifting component.

[0093] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hardness testing device for high temperature alloy production, comprising a control console (1) and a lifting platform (2) mounted on the control console (1), characterized in that: It also includes an alloy sheet (15) and a heating furnace (4) fixedly mounted on a lifting platform (2); A pressing component is installed on the control console (1); the heating furnace (4) is composed of a furnace body (10) and a furnace cover (11); the furnace body (10) and the furnace cover (11) are rotatably connected; a heating wire is installed inside the furnace body (10); the heating wire and the control console (1) are connected via a wire (3); a fixing component matching the alloy sheet (15) is installed inside the furnace body (10); and an anti-oxidation component matching the alloy sheet (15) is installed inside the furnace body (10); A through hole is provided on the furnace cover (11) for the first push rod (7), the second push rod (8) and the concave column (9) to enter and exit. A blocking component matching the through hole is installed on the furnace cover (11). A pressing ball (30) matching the pressing component is installed on the furnace cover (11) via a hanging component.

2. The hardness testing equipment for high temperature alloy production according to claim 1, characterized in that: The pressing assembly comprises an electric push rod fixedly mounted on the top of the console (1), a first push rod (7) being fixedly mounted on the telescopic end of the electric push rod, a second push rod (8) being fixedly mounted on the bottom of the first push rod (7), and a concave column (9) being fixedly mounted on the bottom of the second push rod (8).

3. The hardness testing equipment for high temperature alloy production according to claim 1, characterized in that: The fixing assembly comprises a fixing plate (18) fixedly mounted on the bottom of the furnace body (10), a supporting plate (17) fixedly mounted on the fixing plate (18), a plurality of adjusting pillars (20) fixedly mounted on the fixing plate (18), a plurality of clamps (19) matched with corresponding adjusting pillars (20) fixedly mounted on the fixing plate (18), and a plurality of side lockers (21) matched with the alloy sheets (15) fixedly mounted on the fixing plate (18).

4. The hardness testing equipment for high temperature alloy production according to claim 1, characterized in that: The anti-oxidation component comprises an air intake mechanism (12) and an air outlet mechanism (14), wherein the air intake mechanism (12) is used to inject an inert gas into the interior of the furnace body (10), and the air outlet mechanism (14) is used to suck out the inert gas inside the furnace body (10). A cooler (5) is installed on the control console (1) and is connected to the air outlet mechanism (14) for cooling and discharging the sucked inert gas.

5. The hardness testing equipment for high temperature alloy production according to claim 4, characterized in that: The air intake mechanism (12) comprises an air intake pipe (22), and the air outlet mechanism (14) comprises an air outlet pipe, which is connected to a cooler (5). The air intake pipe (22) is fixedly connected to a plurality of air intake branches, and the air outlet pipe is fixedly connected to two air outlet branches. Each of the air intake branches and the two air outlet branches is equipped with an electric control valve (23). A heater (24) is fixedly installed on the plurality of air intake branches for heating the inert gas inside the air intake branches. Each of the air intake branches and the two air outlet branches is fixedly connected to a gas distributor (25), and each of the gas distributors (25) is fixedly connected to a plurality of gas nozzles (26).

6. The hardness testing equipment for high temperature alloy production according to claim 1, characterized in that: The blocking group is composed of a plurality of groups of first blocking plates (27) and second blocking plates (28); each group of the first blocking plates (27) is slidably connected to the furnace cover (11); each group of the second blocking plates (28) is slidably connected to the corresponding first blocking plates (27); a first return spring (36) is fixedly installed between each of the first blocking plates (27) and the furnace cover (11); a second return spring (37) is fixedly installed between each of the second blocking plates (28) and the corresponding first blocking plate (27); and a concave design is adopted on the side where each of the first blocking plates (27) and the second blocking plates (28) are close to each other, so as to cooperate with the first push rod (7) and the second push rod (8).

7. The hardness testing equipment for high temperature alloy production according to claim 1, characterized in that: The hanging assembly comprises a plurality of first hinges (33) and second hinges (34), a hanging spring (29) being fixedly installed between each of the first hinges (33) and the corresponding second hinge (34), a sleeve ring being rotatably installed on the pressing ball (30), and each of the second hinges (34) and the sleeve ring being rotatably connected, a plurality of gaskets being slidably installed on the furnace cover (11), and each of the first hinges (33) and the corresponding gasket being rotatably connected, and an adjustment mechanism matching the plurality of gaskets being installed on the furnace cover (11).

8. The hardness testing equipment for high temperature alloy production according to claim 7, characterized in that: The adjustment mechanism comprises a limit plate (16) fixedly mounted on the furnace cover (11), a plurality of limit grooves (32) being formed on the limit plate (16), a sliding column (35) cooperating with a corresponding limit groove (32) being rotatably mounted on each gasket, and a driving structure cooperating with the limit plate (16) being mounted on the furnace cover (11).

9. The hardness testing equipment for high temperature alloy production according to claim 8, characterized in that: The driving structure comprises a gear ring (31) fixedly mounted on a limiting plate (16), a driving motor (13) fixedly mounted on the furnace cover (11), and a gear meshing with the gear ring (31) fixedly mounted on a driving end of the driving motor (13).

10. A method for testing hardness of high temperature alloys for production, used in the hardness testing equipment for high temperature alloys for production as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Before the alloy is subjected to hardness testing, the alloy needs to be cut into disc-shaped alloy sheets (15), the thickness of the alloy is more than two centimeters, and the surface of the alloy is polished; S2, then placing the alloy sheet (15) into the heating furnace (4), and fixing the alloy sheet (15) using a fixing assembly, closing the heating furnace (4) after the fixing is completed, and then adjusting the height of the heating furnace (4) by using the lifting platform (2) on the control console (1), and then heating the alloy sheet (15) by using the heating wire; S3, during the heating process, the air in the heating furnace (4) is extracted through the anti-oxidation component, and an inert gas is injected into the heating furnace (4) for protection; S4. After the temperature in the heating furnace (4) reaches a certain temperature, the pressing component is moved downward, and the pressing component pushes against the blocking component, so that the pressing component and the pressing ball (30) in the heating furnace (4) are pressed against each other, and the pressing ball (30) is moved downward until the pressing ball (30) and the alloy sheet (15) are pressed against each other. Then, pressure is continuously applied to make the pressing ball (30) sink into the alloy sheet (15), and an indentation is pressed on the alloy sheet (15). The indentation diameter and the pressing force are automatically detected by the control console (1), thereby detecting the hardness of the alloy sheet (15). After the detection is completed, the pressing component is pulled out, and the pressing ball (30) is reset under the action of the lifting component.

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