Metallographic specimen embedding device

Abstract

The utility model provides a metallographic specimen embedding device and relates to the technical field of metallographic specimen preparation. The metallographic specimen embedding device comprises a preparation assembly, a vacuum pump assembly and a vibration stirring feeding assembly, the preparation assembly is provided with a preparation cavity, an inlaying mold is fixedly arranged on the bottom wall of the preparation cavity and used for placing a test piece, and a communicating hole is formed in the top wall of the preparation cavity and corresponds to the inlaying mold; the vacuum pump assembly communicates with the preparation cavity and is used for vacuumizing the preparation cavity; and the vibration stirring feeding assembly communicates with the communicating hole and is used for filling the inlaying material subjected to vibration stirring into the inlaying mold. According to the metallographic sample inlaying device, the binding force between the test piece and the inlaying material can be improved, the probability that the test piece is separated from the inlaying material in the metallographic sample preparation process is reduced, meanwhile, bubbles in the inlaying material are reduced, and the sample preparation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallographic sample preparation, in particular to a metallographic sample embedding device. Background Art

[0002] When thermal spraying coatings, it is necessary to observe the microstructure of the coating cross section, so it is necessary to cut the sprayed test pieces or parts, embed the cut test pieces or parts in epoxy resin or phenolic resin, and observe their microstructure under a microscope after metallographic sample preparation.

[0003] After the existing metallographic sample mounting device is mounted, there is a gap between the mounting material and the test piece. Since the metallographic sample preparation needs to go through multiple grindings with silicon carbide sandpaper and subsequent polishing, when the coating is a ceramic coating, the bonding strength between the ceramic coating and the mounting material is not high, so the coating and the mounting material may be separated during the metallographic sample preparation process, affecting the final result judgment. In addition, since most mounting materials are two-component, a large number of bubbles will be generated when the two components are mixed, resulting in the formation of pores of different sizes at the interface after the mounting material is solidified, which ultimately affects the sample preparation effect. Utility Model Content

[0004] The utility model aims to provide a metallographic sample embedding device, which can improve the bonding force between the test piece and the embedding material, reduce the probability of separation between the test piece and the embedding material during the metallographic sample preparation process, and at the same time reduce bubbles in the embedding material to improve the sample preparation effect.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Metallographic specimen mounting device, comprising:

[0007] A preparation component, wherein the preparation component is provided with a preparation cavity, a mosaic mold is fixedly provided on the bottom wall of the preparation cavity, the mosaic mold is used to place the test piece, and a communicating hole is provided on the top wall of the preparation cavity corresponding to the mosaic mold;

[0008] A vacuum pump assembly, the vacuum pump assembly being in communication with the preparation chamber and being used for evacuating the preparation chamber;

[0009] A vibration stirring and feeding component is connected to the connecting hole, and the vibration stirring and feeding component is used to pour the inlay material after vibration stirring into the inlay mold.

[0010] As a further technical solution, the vibration stirring and feeding assembly includes a mounting material mixing tank, a stirrer and a feeding pipe, the stirrer is arranged in the mounting material mixing tank, and the stirring part of the stirrer is located in the mounting material mixing tank, one end of the feeding pipe is connected to the mounting material mixing tank, and the other end passes through the connecting hole to be connected to the mounting mold.

[0011] As a further technical solution, the vibration stirring and feeding assembly further comprises a vibrating member, and the vibrating member is connected to the inlay material mixing tank to provide vibration force for the inlay material in the inlay material mixing tank.

[0012] As a further technical solution, the vibrating member is configured to be annular and sleeved on the outer wall of the inlay material mixing tank.

[0013] As a further technical solution, the vibration stirring and feeding assembly also includes a mounting material pipeline valve, which is connected to the feed pipe and is located between the mounting material mixing tank and the connecting hole.

[0014] As a further technical solution, the vacuum pump assembly includes a vacuum pump body, a vacuum tube and a vacuum pipe valve. One end of the vacuum tube is connected to the vacuum pump body, and the other end is connected to the preparation chamber. The vacuum pipe valve is arranged on the vacuum tube.

[0015] As a further technical solution, the preparation component includes a preparation barrel, a preparation cover and a sealing ring. The preparation cover is detachably connected to the open end of the preparation barrel, the sealing ring is arranged between the preparation cover and the preparation barrel, the preparation cover and the preparation barrel cooperate to form the preparation cavity, the connecting hole is arranged on the preparation cover, and the inlay mold is arranged on the inner side of the bottom wall of the preparation barrel.

[0016] As a further technical solution, the preparation component also includes a heating element, and the heating element is sleeved on the preparation barrel.

[0017] As a further technical solution, a plurality of the inlay molds are fixedly arranged on the bottom wall of the preparation chamber, and a plurality of the connecting holes and the vibration stirring and feeding components are arranged corresponding to the inlay molds.

[0018] As a further technical solution, the metallographic sample mounting device also includes an intelligent control component, which is signal-connected to the vibration stirring and feeding component and the vacuum pump component to control the operating status of the vibration stirring and feeding component and the vacuum pump component.

[0019] Compared with the prior art, the metallographic sample mounting device provided by the embodiment of the utility model has the following technical advantages:

[0020] 1: Since a vacuum pump assembly is provided which is connected to the preparation chamber, before the inlay material is poured into the inlay mold, the vacuum pump assembly is first opened to evacuate the preparation chamber so that the preparation chamber is in a vacuum state, and then the inlay material is poured into the inlay mold, thereby improving the bonding force between the test piece and the inlay material, thereby reducing the probability of separation between the test piece and the inlay material during the metallographic sample preparation process, so as to ensure the subsequent evaluation effect.

[0021] 2: Since a vibration stirring and feeding assembly is provided which is connected to the preparation chamber, during the inlay process, the inlay material is first placed in the vibration stirring and feeding assembly, and the bubbles in the inlay material are eliminated with the vibration stirring of the vibration stirring and feeding assembly, and then the inlay material is poured into the inlay mold. In this way, the bubbles in the inlay material are eliminated, and pores are prevented from forming at the interface after the inlay material is solidified, thereby improving the sample preparation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a simplified structural diagram of a metallographic sample embedding device.

[0023] In the figure:

[0024] 10. Test piece;

[0025] 100, prepare the assembly; 110, prepare the cavity; 120, inlay the mold; 130, prepare the barrel; 140, prepare the cover; 150, seal ring; 160, heating element;

[0026] 200, vacuum pump assembly; 210, vacuum pump body; 220, vacuum tube; 230, vacuum pipeline valve;

[0027] 300, vibrating stirring and feeding assembly; 310, inlay material mixing tank; 320, stirrer; 321, stirring part; 330, feeding pipe; 340, vibrating part; 350, inlay material pipeline valve. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] The metallographic sample mounting device provided in this embodiment is used to mount the ceramic coating test piece in the mounting material. Figure 1 As shown, the metallographic sample mounting device includes a preparation component 100, a vacuum pump component 200 and a vibration stirring and feeding component 300; the preparation component 100 is provided with a preparation chamber 110, and a mounting mold 120 is fixedly provided on the bottom wall of the preparation chamber 110, and the mounting mold 120 is used to place the test piece 10, and the top wall of the preparation chamber 110 and the mounting mold 120 are correspondingly provided with connecting holes; the vacuum pump component 200 is connected to the preparation chamber 110, and is used to evacuate the preparation chamber 110; the vibration stirring and feeding component 300 is connected to the connecting hole, and the vibration stirring and feeding component 300 is used to pour the mounting material after vibration stirring into the mounting mold 120.

[0033] Since a vacuum pump assembly 200 is provided which is connected to the preparation chamber 110, before the inlay material is poured into the inlay mold 120, the vacuum pump assembly 200 is first opened to evacuate the preparation chamber 110, so that the preparation chamber 110 is in a vacuum state, and then the inlay material is poured into the inlay mold 120, thereby improving the bonding force between the test piece 10 and the inlay material, thereby reducing the probability of separation of the test piece 10 and the inlay material during the metallographic sample preparation process, so as to ensure the subsequent evaluation effect. Since a vibration stirring and feeding assembly 300 is provided which is connected to the preparation chamber 110, during the inlay process, the inlay material is first placed in the vibration stirring and feeding assembly 300, and with the vibration stirring of the vibration stirring and feeding assembly 300, the bubbles in the inlay material are eliminated, and then the inlay material is poured into the inlay mold 120. In this way, the bubbles in the inlay material are eliminated, and pores are prevented from forming at the interface after the inlay material is solidified, thereby improving the sample preparation effect.

[0034] In addition, the inlay mold 120 in this embodiment is made of Teflon. Since Teflon has a low friction coefficient and self-demolding properties, after the metallographic sample is prepared, the metallographic sample can be separated from the inlay mold 120 by inverting the preparation component 100 without applying a release agent, thereby reducing the difficulty of demolding.

[0035] In the optional technical solution of this embodiment, the vibration stirring and feeding assembly 300 includes an inlay material mixing tank 310, an agitator 320 and a feed pipe 330. The agitator 320 is connected to the inlay material mixing tank 310, and the stirring part 321 of the agitator 320 is located in the inlay material mixing tank 310. One end of the feed pipe 330 is connected to the inlay material mixing tank 310, and the other end is connected to the inlay mold 120 through a connecting hole.

[0036] Specific combination Figure 1 As shown, in this embodiment, the inlay material mixing tank 310 is set as an open tank body, the stirrer 320 is detachably connected to the open end of the inlay material mixing tank 310, and the stirring part 321 extends into the inlay material mixing tank 310 through the open end; the mold opening of the inlay mold 120 is set toward the connecting hole, and one end of the feed pipe 330 is connected to the bottom wall of the inlay material mixing tank 310, and the other end is connected to the mold opening. After the inlay material is placed in the inlay material mixing tank 310, the stirrer 320 is started. With the rotation of the stirring part 321, the inlay material in the inlay material mixing tank 310 is stirred, so that the bubbles in the inlay material are removed, and then the inlay material is poured into the inlay mold 120 along the feed pipe 330 for inlaying, so as to avoid the formation of pores at the interface after the inlay material is solidified. The inlay material with the bubbles removed is poured into the inlay mold 120 along the feed pipe 330, which can prevent the inlay material from falling outside the inlay mold 120, ensure the metallographic sample preparation effect, and reduce the waste of the inlay material.

[0037] In an optional technical solution of this embodiment, the vibration stirring and feeding assembly 300 further includes a vibration member 340 , which is connected to the inlay material mixing tank 310 to provide vibration force for the inlay material in the inlay material mixing tank 310 .

[0038] Specific combination Figure 1 As shown, after the inlay material is placed into the inlay material mixing tank 310, the vibrator 340 is started. As the vibrator 340 operates, the inlay material in the inlay material mixing tank 310 is vibrated. With the cooperation of the agitator 320, the effect of removing bubbles in the inlay material is further improved, thereby avoiding the formation of pores at the interface after the inlay material is solidified.

[0039] In some other embodiments, the vibration stirring and feeding assembly 300 may be provided with only the vibration member 340 or the stirrer 320 .

[0040] In an optional technical solution of this embodiment, the vibrating member 340 is configured to be annular and sleeved on the outer wall of the inlay material mixing tank 310 .

[0041] Specific combination Figure 1 As shown, the annular vibrating member 340 can ensure that the vibration force applied to each part of the inlay material mixing tank 310 is the same, thereby further improving the bubble removal effect. The annular vibrating member 340 is sleeved on the outer wall of the inlay material mixing tank 310. While the vibrating member 340 provides sufficient vibration force for the inlay material mixing tank 310, the vibrating member 340 is prevented from occupying the internal space of the inlay material mixing tank 310 to ensure the inlay material holding capacity of the inlay material mixing tank 310.

[0042] In an optional technical solution of this embodiment, the vibration stirring and feeding assembly 300 also includes a mounting material pipeline valve 350, which is connected to the feed pipe 330 and is located between the mounting material mixing tank 310 and the connecting hole.

[0043] Specific combination Figure 1 As shown, when the vacuum pump body 210 evacuates the preparation chamber 110 and the bubbles in the inlay material in the inlay material mixing tank 310 are cleared, the inlay material pipeline valve 350 is opened to allow the inlay material to be poured into the inlay mold 120 along the feeding pipe 330; after the inlay material is poured into the inlay mold 120, the inlay material pipeline valve 350 is closed to prevent excessive inlay material from entering the preparation chamber 110 and affecting the sample preparation process; finally, after the inlay material in the inlay mold 120 is solidified, the inlay material pipeline valve 350 is opened again to release the residual vacuum in the preparation chamber 110 to facilitate sample demolding.

[0044] In an optional technical solution of this embodiment, the vacuum pump assembly 200 includes a vacuum pump body 210, a vacuum tube 220 and a vacuum pipe valve 230. One end of the vacuum tube 220 is connected to the vacuum pump body 210, and the other end is connected to the preparation chamber 110. The vacuum pipe valve 230 is arranged on the vacuum tube 220.

[0045] The vacuum pump body 210 evacuates the preparation chamber 110 before mounting. When the pressure value in the preparation chamber 110 is at the target pressure value, the vacuum pipeline valve 230 is closed to avoid changes in the vacuum degree in the current preparation chamber 110, thereby improving the sample preparation effect.

[0046] In the optional technical solution of this embodiment, the preparation component 100 includes a preparation barrel 130, a preparation cover 140 and a sealing ring 150. The preparation cover 140 is detachably connected to the open end of the preparation barrel 130. The sealing ring 150 is arranged between the preparation cover 140 and the preparation barrel 130. The preparation cover 140 and the preparation barrel 130 cooperate to form a preparation cavity 110. The connecting hole is arranged on the preparation cover 140, and the inlaid mold 120 is arranged on the inner side of the bottom wall of the preparation barrel 130.

[0047] The vacuum pump body 210 is connected to the preparation chamber 110 through the preparation cover 140. Since the preparation cover 140 is detachably connected to the open end of the preparation barrel 130, when the sample preparation is completed and demoulding is required, the preparation cover 140 is removed from the preparation barrel 130, and the preparation barrel 130 can be demoulded by turning it upside down, without disconnecting the vacuum pump assembly 200 and the vibration stirring feeding group from the preparation cover 140, which is convenient for disassembly and the next sample preparation, thereby improving the overall sample preparation efficiency. The sealing ring 150 improves the sealing between the preparation cover 140 and the preparation barrel 130, and ensures the vacuum degree of the preparation chamber 110 after the vacuum pump assembly 200 evacuates the preparation chamber 110.

[0048] In an optional technical solution of this embodiment, the preparation component 100 further includes a heating element 160 , and the heating element 160 is sleeved on the preparation barrel 130 .

[0049] Specific combination Figure 1 As shown, the heating element 160 is configured as a cylinder and is sleeved on the preparation barrel 130. After the inlay material is poured into the inlay mold 120, the heating element 160 starts to operate and provides heat to the preparation cavity 110 to accelerate the solidification of the inlay material, thereby shortening the solidification time and improving the efficiency of metallographic sample preparation. Since the heating element 160 is configured as a cylinder, it can be ensured that when the heating element 160 provides heat to the preparation cavity 110, the heat in each part of the preparation cavity 110 is balanced, thereby further improving the sample preparation effect. In addition, since the heating element 160 is sleeved outside the preparation barrel 130, while heating the preparation cavity 110, the heating element 160 is prevented from occupying the internal space of the preparation cavity 110.

[0050] In an optional technical solution of the present embodiment, a plurality of embedded molds 120 are fixedly disposed on the bottom wall of the preparation chamber 110 , and a plurality of connecting holes and vibration stirring and feeding components 300 are disposed corresponding to the embedded molds 120 .

[0051] The number of the inlay molds 120 can be set to one, three, five, etc. The specific number can be appropriately increased or decreased according to specific needs. In this embodiment, the number of the inlay molds 120 is set to three. Figure 1As shown, three embedded molds 120 are arranged at intervals on the bottom wall of the preparation chamber 110, and there are three corresponding connecting holes and vibration stirring and feeding components 300. The feeding pipes 330 in the three vibration stirring and feeding components 300 pass through the corresponding connecting holes and are connected to the three embedded molds 120 one by one, thereby realizing the simultaneous preparation of multiple metallographic samples.

[0052] In some other embodiments, it can also be configured that one vibration stirring and feeding assembly 300 simultaneously pours the inlay material into multiple inlay molds 120, or multiple vibration stirring and feeding assemblies 300 simultaneously pour the inlay material into one inlay mold 120.

[0053] In an optional technical solution of this embodiment, the metallographic sample mounting device also includes an intelligent control component, which is signal-connected to the vibration stirring and feeding component 300 and the vacuum pump component 200 to control the operating status of the vibration stirring and feeding component 300 and the vacuum pump component 200.

[0054] The intelligent control component includes a controller and multiple sensors. The vacuum pump body 210, the vacuum pipeline valve 230, the agitator 320, the vibrator 340, the inlay material pipeline valve 350 and multiple sensors are all connected to the controller signal. Specifically, the multiple sensors are configured as pressure sensors, timing sensors, weight sensors, etc. The pressure sensor is disposed in the preparation chamber 110. During the vacuum pumping process of the vacuum pump body 210, when the pressure sensor senses that the pressure in the preparation chamber 110 reaches a set value, the pressure signal is transmitted to the controller, and the controller transmits the signal to the vacuum pump body 210 and the vacuum pipeline valve 230. After that, the vacuum pump body 210 stops running and the vacuum pipeline valve 230 is closed to ensure the vacuum degree in the preparation chamber 110. Timing sensors can be set on the agitator 320, the vibrator 340 or the inlay material pipeline valve 350. When the working time of the agitator 320 reaches the set value, the working time of the vibrator 340 reaches the set value, or the opening time of the inlay material pipeline valve 350 reaches the set value, the corresponding The timing sensor transmits a signal to the controller, and the controller sends a corresponding signal to stop the agitator 320 or the vibrating member 340 and close the inlay material pipeline valve 350; the weight sensor is arranged on the inlay mold 120 or the inlay material mixing tank 310, and the weight sensor is used to sense the weight of the inlay material in the inlay mold 120 or the inlay material mixing tank 310. When the inlay material in the inlay mold 120 or the inlay material mixing tank 310 reaches the set value of the corresponding weight sensor, the weight sensor transmits a signal to the controller, and the controller transmits the signal to the inlay material pipeline valve 350, and the inlay material pipeline valve 350 is closed to avoid excessive inlay material in the inlay mold 120 and affect the metallographic sample preparation effect.

[0055] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A metallographic specimen mounting device, characterized in that: The metallographic sample mounting device comprises: A preparation component (100), the preparation component (100) being provided with a preparation cavity (110), a mosaic mold (120) being fixedly provided on the bottom wall of the preparation cavity (110), the mosaic mold (120) being used to place a test piece (10), and a communicating hole being provided on the top wall of the preparation cavity (110) and corresponding to the mosaic mold (120); A vacuum pump assembly (200), the vacuum pump assembly (200) being in communication with the preparation chamber (110) and being used to evacuate the preparation chamber (110); A vibration stirring and feeding component (300), the vibration stirring and feeding component (300) is connected to the connecting hole, and the vibration stirring and feeding component (300) is used to pour the inlay material after vibration stirring into the inlay mold (120).

2. The metallographic specimen mounting device according to claim 1, characterized in that: The vibration stirring and feeding assembly (300) comprises a mounting material mixing tank (310), a stirrer (320) and a feed pipe (330); the stirrer (320) is arranged in the mounting material mixing tank (310), and the stirring part (321) of the stirrer (320) is located in the mounting material mixing tank (310); one end of the feed pipe (330) is connected to the mounting material mixing tank (310), and the other end passes through the connecting hole to communicate with the mounting mold (120).

3. The metallographic specimen mounting device according to claim 2, characterized in that: The vibration stirring and feeding assembly (300) further comprises a vibration member (340), wherein the vibration member (340) is connected to the inlay material mixing tank (310) to provide vibration force for the inlay material in the inlay material mixing tank (310).

4. The metallographic specimen mounting device according to claim 3, characterized in that: The vibrating member (340) is arranged in a ring shape and is sleeved on the outer wall of the inlay material mixing tank (310).

5. The metallographic specimen mounting device according to claim 2, characterized in that: The vibration stirring and feeding assembly (300) further comprises a mounting material pipeline valve (350), wherein the mounting material pipeline valve (350) is connected to the feed pipe (330) and is located between the mounting material mixing tank (310) and the connecting hole.

6. The metallographic specimen mounting device according to any one of claims 1 to 5, characterized in that: The vacuum pump assembly (200) comprises a vacuum pump body (210), a vacuum tube (220) and a vacuum pipeline valve (230); one end of the vacuum tube (220) is connected to the vacuum pump body (210), and the other end is connected to the preparation chamber (110); the vacuum pipeline valve (230) is arranged on the vacuum tube (220).

7. The metallographic specimen mounting device according to any one of claims 1 to 5, characterized in that: The preparation assembly (100) comprises a preparation barrel (130), a preparation cover (140) and a sealing ring (150); the preparation cover (140) is detachably connected to the open end of the preparation barrel (130); the sealing ring (150) is arranged between the preparation cover (140) and the preparation barrel (130); the preparation cover (140) cooperates with the preparation barrel (130) to form the preparation cavity (110); the connecting hole is arranged on the preparation cover (140); and the inlay mold (120) is arranged on the inner side of the bottom wall of the preparation barrel (130).

8. The metallographic sample mounting device according to claim 7, characterized in that: The preparation component (100) further comprises a heating element (160), wherein the heating element (160) is sleeved on the preparation barrel (130).

9. The metallographic specimen mounting device according to any one of claims 1 to 5, characterized in that: A plurality of the inlay molds (120) are fixedly arranged on the bottom wall of the preparation chamber (110), and a plurality of the connecting holes, the vibration stirring and feeding components (300) and the inlay molds (120) are arranged in a one-to-one correspondence.

10. The metallographic sample mounting device according to any one of claims 1 to 5, characterized in that: The metallographic sample mounting device further comprises an intelligent control component, which is signal-connected to both the vibration stirring and feeding component (300) and the vacuum pump component (200) to control the operating states of the vibration stirring and feeding component (300) and the vacuum pump component (200).

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