Tray for corroding metallographic specimen

Abstract

The utility model relates to the field of metallographic specimens, in particular to a tray for corroding metallographic specimens, which comprises a bearing tray and a net-shaped tray, a large pit and a small pit are arranged on the inner side of the net-shaped tray, and a vertical pit is arranged on the inner side of the net-shaped tray and positioned on the side of the large pit. A liquid discharging pipe opening is fixedly formed in the lower side of the front end of the bearing tray, a valve is fixedly installed on the liquid discharging pipe opening, a valve element is arranged in the valve, a connecting rod is fixedly installed at the upper end of the valve element, and the upper end of the connecting rod extends to the outer side of the valve element and is fixedly provided with a rotating handle; a ground and polished sample can be placed in the net-shaped tray with the corresponding size, corrosive liquid, purified water and alcohol are sequentially dropped into the net-shaped tray, then the sample is blow-dried by the blower, the sample is not held by hands or clamped by tweezers all the time in the whole process, and the situation that the hand is burnt by the blower or the sample falls off due to the fact that the sample cannot be clamped by the tweezers, and the sample is polluted and damaged is avoided. And the corrosion tray can also efficiently recover the corrosive liquid.

Description

Technical Field

[0001] This utility model relates to the field of metallographic specimens, and in particular to a tray for etching metallographic specimens. Background Technology

[0002] With the rapid development of the modern steel industry, in order to study new processes and materials, continuously optimize process parameters and improve product performance, it is necessary to conduct metallographic microstructure analysis of steel materials. However, before metallographic testing, the sample must first be prepared, cut, inlaid, pre-ground, polished, etched and dried before it can be observed and analyzed under a microscope. When etching metallographic samples in the laboratory, the sample is held by hand or clamped with tweezers, and then the etchant, pure water and alcohol are dropped in sequence, and then the sample is dried with a hair dryer.

[0003] Currently, when etching metallographic samples, tweezers are not stable when holding large, round samples, and they are easy to drop. Holding the sample by hand and using a hair dryer can easily cause burns. Placing the sample on a table can easily cause it to be blown over, resulting in secondary contamination. Furthermore, the back of the sample cannot be dried when placed on a table, causing water to flow onto the microscope objective when using an inverted microscope, affecting experimental analysis. In addition, all these etching methods make it impossible to collect the etching waste liquid, causing pollution.

[0004] Therefore, when etching metallographic samples, tweezers are unstable and easily drop the samples, and using a hair dryer can easily cause burns. Furthermore, this etching method makes it impossible to collect the etching waste liquid, causing pollution. To address this, a tray for etching metallographic samples can be designed, consisting of upper and lower trays. The polished sample is placed in a correspondingly sized recess in the mesh tray, etched and dried, and the etching waste liquid is recovered through the outlet valve on the lower tray. Utility Model Content

[0005] To overcome the problems of unstable tweezers holding metallographic samples, easy dropping, easy burns when using a hair dryer, and pollution caused by the inability to collect corrosion waste liquid when etching metallographic samples.

[0006] The technical solution of this utility model is as follows: a tray for etching metallographic samples, including a receiving tray and a mesh tray. The inner side of the mesh tray is provided with a large pit and a small pit. A vertical pit is provided on the inner side of the mesh tray at the edge of the large pit. A drain pipe is fixedly installed on the lower side of the front end of the receiving tray. A valve is fixedly installed on the drain pipe. A valve core is provided inside the valve. A connecting rod is fixedly installed on the upper end of the valve core. A rotating handle is fixedly installed on the upper end of the connecting rod extending to the outside of the valve core. Arc-shaped grooves are opened at both the front and rear ends of the mesh tray. Movable cavities are opened at the rear end of the inner side of the receiving tray. A return spring is fixedly installed inside the movable cavity. A locking ball is fixedly installed on the return spring.

[0007] Preferably, the corrosion tray has a two-layer structure. The upper layer is a mesh structure with multiple pits of different sizes designed inside the mesh tray according to the size of the embedded sample and the sample itself. The lower layer is a receiving tray with a drain pipe at the bottom of one corner of the tray and a valve for easy recovery of the corrosion liquid. The pits make it easy to use tweezers to pick up larger samples and dry the back of the sample.

[0008] Preferably, handles are fixedly installed on both the left and right sides of the top of the mesh tray, and support handles are fixedly installed on both the left and right sides of the tray receiving area.

[0009] Preferably, the surface of the valve core is rotatably connected to the valve, and the surface of the connecting rod is rotatably connected to the valve.

[0010] Preferably, the valve core has a connecting through hole on its inner side, and a drainage slope is fixedly installed at the lower end of the receiving tray.

[0011] Preferably, a support foot is fixedly installed on the side of the lower end of the receiving tray, and an anti-slip pad is fixedly installed on the lower end of the support foot.

[0012] Preferably, the receiving pallet and the mesh pallet are interlocked, and the arc-shaped grooves and movable cavities are evenly distributed.

[0013] Preferably, the surface of the locking ball is slidably connected to the movable cavity, and the end of the locking ball away from the return spring extends to the outside of the movable cavity and is adapted to the arc-shaped groove.

[0014] The beneficial effects of this utility model are:

[0015] This tray for etching metallographic samples, after polishing, selects appropriate pits according to the sample size, places the sample in the pit, and during the etching and drying process, the sample will not swing back and forth or tip over. The bottom of the sample can also be dried, and multiple samples can be etched at the same time without affecting microscopic analysis and photography, thus improving work efficiency. By clamping the mesh tray onto the lower plastic tray, the etchant and alcohol during etching can be smoothly left and collected in the lower tray. After etching is completed, the valve next to the lower tray can be opened to collect the waste liquid into the waste liquid tank for centralized treatment. The return spring drives the locking ball to fit tightly into the arc-shaped groove, thereby enhancing the tightness of the connection between the mesh tray and the receiving tray and avoiding loosening. This helps to improve the stable installation of the tray for etching metallographic samples. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the tray for etching metallographic specimens according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the valve of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the mesh tray of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the receiving tray of this utility model;

[0020] Figure 5 What is shown is Figure 4 Enlarged 3D structural diagram of point A.

[0021] Explanation of reference numerals in the attached diagram: 1. Receiving tray; 2. Mesh tray; 3. Large recess; 4. Small recess; 5. Vertical recess; 6. Drainage port; 7. Valve; 8. Valve core; 9. Connecting rod; 10. Rotary handle; 11. Arc-shaped groove; 12. Movable cavity; 13. Return spring; 14. Engaging ball; 15. Handle; 16. Support handle; 17. Connecting through hole; 18. Drainage slope; 19. Support foot; 20. Anti-slip mat. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a tray for etching metallographic samples, including a receiving tray 1 and a mesh tray 2. The inner side of the mesh tray 2 has a large recess 3 and a small recess 4. A vertical recess 5 is provided on the inner side of the mesh tray 2, located beside the large recess 3. A drain pipe 6 is fixedly installed on the lower side of the front end of the receiving tray 1. A valve 7 is fixedly installed on the drain pipe 6. A valve core 8 is provided inside the valve 7. A connecting rod 9 is fixedly installed on the upper end of the valve core 8. The upper end of the connecting rod 9 extends to the outside of the valve core 8 and is fixedly installed with a rotating... The handle 10 and the mesh tray 2 are provided with arc-shaped grooves 11 at both ends. The inner side of the receiving tray 1 is provided with movable cavities 12 towards the rear end. A return spring 13 is fixedly installed inside the movable cavity 12. A locking ball 14 is fixedly installed on the return spring 13. The sample is placed in the mesh tray 2, and corrosive agent, pure water and alcohol are dripped in sequence. The sample is dried with a hair dryer. The sample is lifted with tweezers and placed upright in the rectangular vertical pit 5. The back of the sample is dried. After the corrosion is completed, the corrosion waste liquid collected by the receiving tray 1 is discharged from the drain pipe 6 for centralized treatment.

[0024] Please see Figures 1-4In this embodiment, handles 15 are fixedly installed on both the left and right sides of the upper end of the mesh tray 2, and support handles 16 are fixedly installed on both the left and right sides of the receiving tray 1. The surface of the valve core 8 is rotatably connected to the valve 7, and the surface of the connecting rod 9 is rotatably connected to the valve 7. A connecting through hole 17 is opened on the inner side of the valve core 8. A drainage slope 18 is fixedly installed at the lower end of the inside of the receiving tray 1. A support foot 19 is fixedly installed on the side of the lower end of the receiving tray 1, and an anti-slip pad 20 is fixedly installed at the lower end of the support foot 19. After the sample is polished... Then, place the sample on the mesh tray 2 and put it in the corresponding sized pit. Add the corrosive agent, pure water and alcohol in sequence, and dry it with a hair dryer. When the front of the sample is dry, use tweezers to lift the sample and make it stand upright in the rectangular pit 5. Dry the back of the sample. After the corrosion is completed, use the corrosion waste liquid collected by the receiving tray 1 to discharge it from the drain pipe 6 and collect it into the waste liquid bucket for centralized treatment. The return spring 13 drives the locking ball 14 to fit into the arc groove 11 to improve the tightness of the connection.

[0025] Please see Figure 1 , Figure 4 and Figure 5 In this embodiment, the receiving tray 1 and the mesh tray 2 are engaged and connected. The arc-shaped groove 11 and the movable cavity 12 are evenly distributed. The surface of the engaging ball 14 is slidably connected to the movable cavity 12. The end of the engaging ball 14 away from the return spring 13 extends to the outside of the movable cavity 12 and is adapted to the arc-shaped groove 11. The mesh tray 2 is engaged onto the receiving tray 1. The return spring 13 drives the engaging ball 14 to fit tightly against the arc-shaped groove 11, thereby enhancing the tightness of the connection between the mesh tray 2 and the receiving tray 1, avoiding loosening of the connection, and improving the stable installation of the tray for corroded metallographic samples.

[0026] During the process, after polishing the sample, place it on the mesh tray 2 and into the corresponding sized recess. Then, drip in the etchant, pure water, and alcohol in sequence, and dry it with a blower. When the front of the sample is dry, use tweezers to lift the sample and place it upright in the rectangular recess 5. Dry the back of the sample. After etching, the etchant waste liquid collected by the receiving tray 1 is discharged from the drain pipe 6 and collected into the waste liquid bucket for centralized treatment. The mesh tray 2 is then snapped onto the receiving tray 1. The return spring 13 drives the snapping ball 14 to fit tightly against the arc-shaped groove 11, thereby enhancing the tightness of the connection between the mesh tray 2 and the receiving tray 1 and preventing loosening. This helps to improve the stability of the tray installation for etching metallographic samples.

[0027] Through the above steps, the sample is placed in the mesh tray 2, and the etchant, purified water, and alcohol are dripped in sequence. The sample is dried with a hair dryer, and the sample is lifted with tweezers and placed upright in the rectangular recess 5. The back of the sample is dried. After etching, the etching waste liquid collected in the receiving tray 1 is discharged from the drain pipe 6 for centralized treatment. This solves the problems of unstable tweezers holding the metallographic sample, easy drop, easy burn when using a hair dryer, and pollution caused by the inability to collect the etching waste liquid when this etching method is used.

Claims

1. A tray for etching metallographic samples, comprising a receiving tray (1), characterized in that: It also includes a mesh tray (2), with a large recess (3) and a small recess (4) on the inner side of the mesh tray (2). A vertical recess (5) is provided on the inner side of the mesh tray (2) at the side of the large recess (3). A drain pipe (6) is fixedly installed on the lower side of the front end of the receiving tray (1). A valve (7) is fixedly installed on the drain pipe (6). A valve core (8) is provided inside the valve (7). A connecting rod (9) is fixedly installed on the upper end of the valve core (8). A handle (10) is fixedly installed on the upper end of the connecting rod (9) extending to the outer side of the valve core (8). An arc-shaped groove (11) is provided at both the front and rear ends of the mesh tray (2). An movable cavity (12) is provided at the rear end of the inner side of the receiving tray (1). A reset spring (13) is fixedly installed inside the movable cavity (12). A locking ball (14) is fixedly installed on the reset spring (13).

2. A tray for etching metallographic samples according to claim 1, characterized in that: Handles (15) are fixedly installed on both the left and right sides of the upper end of the mesh tray (2), and support handles (16) are fixedly installed on both the left and right sides of the receiving tray (1).

3. A tray for etching metallographic samples as defined in claim 1, wherein: The surface of the valve core (8) is rotatably connected to the valve (7), and the surface of the connecting rod (9) is rotatably connected to the valve (7).

4. A tray for etching metallographic specimens as defined in claim 3, wherein: A connecting through hole (17) is provided on the inner side of the valve core (8), and a drainage slope (18) is fixedly installed at the lower end of the receiving tray (1).

5. A tray for etching metallographic specimens as defined in claim 4, wherein: Support feet (19) are fixedly installed on the side of the lower end of the receiving pallet (1), and anti-slip pads (20) are fixedly installed on the lower end of the support feet (19).

6. A tray for etching metallographic samples as defined in claim 1, wherein: The receiving pallet (1) and the mesh pallet (2) are snapped together, and the arc-shaped groove (11) and the movable cavity (12) are evenly distributed.

7. A tray for etching metallographic samples according to claim 6, characterized in that: The surface of the locking ball (14) is slidably connected to the movable cavity (12), and the end of the locking ball (14) away from the return spring (13) extends to the outside of the movable cavity (12) and is adapted to the arc-shaped groove (11).

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